Ubitx Mods

Uses IRF510s x 2 as PA and 2N3904 x 4 drivers in push-pull mode for low distortion transmission. The easiest first step to reclaiming arduino Andy KB1OIQ has posted a file on the [BITX20] IO Group files page: kb1oiq_i2c_mod. The converter works in the background and generates an interrupt when a new sample is available. 5" W, 8" L, 4" H. For a while I wondered if it were even case-worthy given that even the cheapest plastic cases run $20 plus the labor involved in cutting and drilling. Ashhar Farhan [email protected] Many thanks to Pete Eaton (WB9FLW) who shares the following post: Last March Ashhar Farhan VU2ESE the designer of the very popular BITX20 and BITX40 series of mono-band HF Transceivers announced a new low cost Rig called the uBITX (micro BITX) a full blown 80-10m 10 Watt SSB/CW Transceiver. Supposed this mod improves the audio quality of your transmit signal but I haven't tested that claim yet. Description POPULAR DESIGN LM324 AGC AGC KIT WITH VU METER This Agc circuit is being used in our Bitx kits. 000000 Mhz and the frequency displayed on the uBITX LCD window is 7. Other mods add a larger color touchscreen. 8″ TFT display. 2 processor, an attenuator and an auto antenna tuner. Pcb is made from CM2KMK 2017 mod version. Two of these pins are used for the Emic2 text-to-speech module. uBitx v5 Changes. Another club member has a V3 board, and his has plenty of audio. Clone with HTTPS. The walls are 4mm thick and the case comes with standoffs to secure the pcb to the enclosure along with the rails. uBITX Firmware Updates. Well, mostly unmodified. Many thanks to Pete Eaton (WB9FLW) who shares the following post: Last March Ashhar Farhan VU2ESE the designer of the very popular BITX20 and BITX40 series of mono-band HF Transceivers announced a new low cost Rig called the uBITX (micro BITX) a full blown 80-10m 10 Watt SSB/CW Transceiver. A General Coverage HF transceiver kit – No soldering required. So uBITX's firmware upgrade method is the same as Arduino. This transceiver is Farhan' s uBitx mod - 10 watts, easy to build, general coverage SSB/CW transceiver for HF bands. ubitx #v6 Screen Speed Mod, and interrupt driven encoder wheel mod #v6. Reverse polarity is damaging to your uBITx. I've an Alinco DX-70TH which I gave £200 for and its a super rig, there are lots of of radios out there for similar money. I had two cases but only one survived. These two add-on modules are the recent addition to my XENA and BITX rigs that have already proved their worth during portable QRP operations. Description POPULAR DESIGN LM324 AGC AGC KIT WITH VU METER This Agc circuit is being used in our Bitx kits. It shows its. 200 for uBITX All Version (include v2, v3, v4, v5) I did the firmware work for v5 when uBITX V5 was released, but I release it now. Complete with all the missing fittings, speaker, knobs, USB, SO239, mic skt, etc (the full list of parts is on the website). inches by 6 inch board with minimum wires and controls that you can drop into any box and wire up within an evening. uBITX is based on Arduino Nano. I also used some height tilting feet I modded off the original design, and a fan cover I made myself for the fan. Smitty, KR6ZY This is a software-only mod that improves the responsiveness of the encoder wheel. First contact of the new year. Some additional materials needed: 12vDC SPST rectangular rocker. Thanks for the link! level 1. Welcome to my corner of the QRP world. Eddie loves to be QRM, well cat made noise in the shack. I have the radio ready for testing will it work? or have I mixed up the ribbon cables:-) Thanks for dropping by, Im building the. I had contacted you a month or so ago about these boards and at the time you were out. Due to the interruptions of parts delivery from COVID-19 repercussions we are having to suspend taking orders temporarily. Not a big deal, the volume control does nicely in most instances, but I find an RF gain control almost a must. The only additions I'll do before the first power up are the two fuses they suggested adding for obvious reasons. I received the feedback from a thankful beta tester and tested it myself by converting my uBITX v3 to v5 but I was not sure. It was almost compliant anyways. 1-I removed the stock TFT and replaced with Nextion 2. Yesterday at 4:56 AM. KJ5VW's Cool uBITX Mods (Video) Nigerian Knack: Hope Emmanuel Frank; FDIM Interview with KI4IO -- Homebrew Direct Conve Woz on the air -- Age 11; FDIM Interview with Hans Summers G0UPL on QSX SDR Pete sent me his SBE-34; Stop what you are doing! Go to the Radio Garden! Another Amazing SSB Rig: VK3HN's "Summit Prowler. I used a 12V computer fan I had laying around. Air-Core Inductor Calculator. Some may note the screws are a little long, but I already had them, they fit, and do the job. This is a custom encoder knob designed for the uBITX transceiver, a general coverage ham radio transceiver designed by VU2ESE. I am adding a Nextion 3. The uBITX is 10 dollars cheaper (after 12/25) works 80-10 M, does SSB in addition to CW, and is a Superhet to boot! Farhan your hit this one out of the Ballpark! Very cool, Pete!. Other fIxes that seem to work: Raj and others have experimented with and tested possible solutions. literally all the ubitx needs to fix the spurs is replacing the LPF relays with name brand ones instead of the cheap ones, which is a roughly 6€ mod. Use other posts or manuals. io Tue, Feb 5, 10:33 PM (10 hours ago) to bitx20 We have pushed the ubitx v5 into production. This sure makes the uBITX look the part in the shack. This transceiver is a fairly good option for operators who have experience building kits, and also want to get into the world of HF operation or just want another rig as a QRP on the go radio. Another toy at home: UBITX transceiver. Categories Audio pop mod, uBitx News Tags audio, VE1BWV. Instantly improved harmonic suppression by about 10dB for me. Fixes in uBitx v5 Boards: uBitx v5 Changes. Get latest updates about Open Source Projects, Conferences and News. In order to install as suggested by the folks at uBitX I had to scrape some traces and fold out the inductor leads. When I received my UBITX V6 from HF signals first thing I noticed was the slow display refresh rate. I needed to get some 680nH smt inductors for my uBITX v3 there are none available in the U. So here is the mod. I started to search information about this little radio and found amazed that is very close to what I proposed myself to make! So close that the IF are the same to my personal project! (2) interface (2) marc (2) mods (2) pirates (2). I had contacted you a month or so ago about these boards and at the time you were out. You can see it below in the upper left corner between the Raduino module and…. Adding an External Linear Amplifier Control circuit to your uBitx Adding some big "shoes' to the uBitx! So OK the concept of the Bitx and uBitx is to operate QRP and with the new design of the uBitx having 10 watts is an excellent power level for making contacts. We are an information site only and not associated with HF Signals. The uBITX is 10 dollars cheaper (after 12/25) works 80-10 M, does SSB in addition to CW, and is a Superhet to boot! Farhan your hit this one out of the Ballpark! Very cool, Pete!. installed nextion 3. New pull request. Click to find the best Results for knobs Models for your 3D Printer. Mic Connector XLR 1, PCB For USB connector 1, USB Connector , D9 Connector 1, Stereo Connector PCB Mount 2, Universal Case For ubitx 1, and a Front Panel 2. 061 KD8CEC Manual for v1. 2 touch screen display. The following examples are based on version 0. ND6P came up with this mod after testing his uBITX on the bench to determine how much signal it could handle before distorting at the speaker due to clipping of the audio signal. This is a simple idea to apply ubitx ver 4 audio amplifire, Tx popfix and S-meter sensor(LM386)by Lee to ubitx ver3 pcb all details and pcb design are on my blog, vu2kyz. ubitx - sketch for the raduino to work with the ubitx transceiver - phdlee/ubitx. I've got my ubitx radio kit, and finals are over now My plan is to build the kit stock first to make sure it actually works at all. Based on Arduino Nano controller. 5mm stereo chassis part (or chassis part of your choice) Schematic Steps. W6RAG's ubitx 4 - Some simple mods that improve the radio. Just remember this :. Cost may seem a bit high but the relays and US supplier parts are not cheap at this moment. UBITX usage except GUI is same as existing CEC Firmware. Save up to 25% when you buy more. The uBITX shoots to fulfill such a need. Be Creative!… Don't be a "Passive Consumer" of someone else's imagination. So uBITX's firmware upgrade method is the same as Arduino. If you can follow the above, go ahead, wire it up and move on to the tune up instructions. Click to find the best Results for front panel Models for your 3D Printer. It also tunes like one with a proper encoder for tuning instead of. Clone or download. Pcb is made from CM2KMK 2017 mod version. LP-Bridge (Virtual Serial Port Sharing) Connectors - Part 1. Due to the interruptions of parts delivery from COVID-19 repercussions we are having to suspend taking orders temporarily. Add batteries and its low current consumption will make it an ideal travel companion or a great station rig. In order to install as suggested by the folks at uBitX I had to scrape some traces and fold out the inductor leads. I received the feedback from a thankful beta tester and tested it myself by converting my uBITX v3 to v5 but I was not sure. net Mod: Add AGC – uBitx 5-6 minutes ubitx. uBitx v5 Changes. The first is to compile the source from the Arduino IDE, and the second is to upload the compiled hex file using the Firmware Upgrade Tool. If nothing happens, download GitHub Desktop and. 8″ display to Ubitx V6: ubitx v6 TFT RADUINO BOARD SCHEMATIC. So here is the why that you should have an in-line fuse on your power cord: The uBitx includes a diode that is soldered across the power connector so that when the power is connected properly the diode is reversed biased --no issues there. The uBITX is a SSB/CW transceiver for 160m – 10m at a 10W level. It MAY work with the older Raduinos, but is large enough that it may interfere mechanically with main board components when plugged into the old style Raduino cards. ubitx License uBITX Enclosure KE0KHA by mrdav1e is licensed under the Creative Commons - Attribution license. This document does not describe the use of uBITX and uBITX Manager. I had contacted you a month or so ago about these boards and at the time you were out. 3K subscribers. Two of these pins are used for the Emic2 text-to-speech module. Mic Connector XLR 1, PCB For USB connector 1, USB Connector , D9 Connector 1, Stereo Connector PCB Mount 2, Universal Case For ubitx 1, and a Front Panel 2. Universal Case DA Grey For uBITX Blue White Case For uBitx Nextion 3. First contact of the new year. Also a lesson learned about the danger of. Another club member has a V3 board, and his has plenty of audio. • UBITX BUY • Order µBITX with Raduino for $129 with free shipping ($10 extra for DHL Shipping), normal shipping via INDIA POST thru Europe 4-5 weeks • Ships within 5 working days from the date of order. Calibration is a 2-step procedure that involves accessing the 'Preferences' menu and setting the BFO so that noise from the speaker falls within parameters described here. I started to search information about this little radio and found amazed that is very close to what I proposed myself to make! So close that the IF are the same to my personal project! (2) interface (2) marc (2) mods (2) pirates (2). 5 Inch Display. It's a fully analogue radio, but it can be combined with an RTL-SDR to create a panadapter display thanks to a tutorial released by KD8CEC. Click to find the best Results for knobs Models for your 3D Printer. This is my version of an enclosure for the popular uBITX HF transceiver in its unmodified form. The uBitx (aka Micro Bitx) is a low cost easily built HF transceiver designed by Ashar Farhan VU2ESE. Ubitx is now for sale, I know a few here including me built the bitx40 (40m qrp rig),, now you can buy the ubitx multi band 3-30mhz hf qrp kit for only $109 till xmas, way more functions than the original bitx40!! and just like the bitx40 the main board comes completely assembled so its a pretty easy kit to put together. One Reply to "Another audio pop mod" Nikos Magafourakis SV9CVJ says: May 1, 2018 at 12:52 pm Τhis works very well for me, but on CW TX the sound is very low and it's hard to hear what I'm sending. Enter the NXP. By the way the transformer core is a BU43-2402. He will be releasing the 7 inch. The video below contains most of the examples in this article. 8 Inch And 1602 Panel. io Tue, Feb 5, 10:33 PM (10 hours ago) to bitx20 We have pushed the ubitx v5 into production. uBitx mods The first one while I wait is going to be putting shielding in a plastic container I have the blue display on its way for the radio rather than puke yellow and black. kb1oiq_i2c_mod. New QRP-uBITX in the shack - III - Transmitter section mods OK, it was the time to see how the TX section of the uBITX is. Ken – wa4mnt …. com via groups. Antenna Plans / Calculators. However, so that everybody who also has a BITx40 doesn’t miss out entirely on. 8″ TFT display. When I received my UBITX V6 from HF signals first thing I noticed was the slow display refresh rate. Add all uBITX mods here. The uBITX V6, winter weather and power outages 13 Replies Yesterday, a weather front moved through the area that dropped temperatures from an unseasonably high of 50F to 25F in the space of a couple of hours. Nice homebrew and tinker project that hopefully will allow me to make contacts at places I would not normally take by FT-817ND (i. Reply Delete. Links to download the firmware can be found on the main page of this site or from the KD8CEC website. One Reply to “Another audio pop mod” Nikos Magafourakis SV9CVJ says: May 1, 2018 at 12:52 pm. The store page has been removed till we resume shipping. -- Fixed the key -- pounding brass-- Will install 4 States QRP Active AF filter. This is particularly noticeable when you have been listening to a weaker station. It does indeed. After three days of operation on 40 Meters it was clear the uBitx needed some shoes. Other mods add a larger color touchscreen. add an AGC. The µBITX presents some challenges with RF AGC system design: There is no RF preamplifier to use as a voltage-controlled attenuator, it is broadband and includes no tuned circuits in the receive path, and the intermediate frequency amplifiers are not configured for variable gain. installed new filter and coil mods for harmonics and spurs. The purchaser needs to assemble the board into an enclosure and wire up sockets, encoder and potentiometer and provide a power supply in order to get the transceiver working. kb1oiq_i2c_mod. Pcb is made from CM2KMK 2017 mod version. So here is the modification procedure to install a nextion 2. Instantly improved harmonic suppression by about 10dB for me. Nick, just sent you an email from my good email address that goes straight to my phone. Release CEC Firmware v1. Categories Audio pop mod, uBitx News Tags audio, VE1BWV. Air-Core Inductor Calculator. W6RAG's ubitx 4 - Some simple mods that improve the radio. 1 as at October 2018). The first one while I wait is going to be putting shielding in a plastic container for my rig while I wait for it. Complete details on the working of the AGC and schematic details are available in the download page. 8, If you want something stable, use V 0. such that feature additions and other mods are practical. Welcome to my corner of the QRP world. Then position sub-board on main PCB as indicated and connect tracks as shown (marked in blue). Loving my uBitx and the KD8CEC latest firmware, using 2 arduino's. Some additional materials needed: 12vDC SPST rectangular rocker. They are board level changes and external filters. NET RECOMMENDS YOU FIX FOR REVERSE POLARITY DAMAGE. Add all uBITX mods here. I'll probably do a firmware mod to get 10 hZ tuning steps with some other way to speed. Page 1 of 3 1 2 3 Next > Then the rumor of the V5 uBitx and at least an expectation of some of the previous sins cleared up. QRPGuys is an organization of hams that offer budget and unique ham radio kits. I've got my ubitx radio kit, and finals are over now My plan is to build the kit stock first to make sure it actually works at all. Bought my ubitx kit last year. Results matching fewer words. Then position sub-board on main PCB as indicated and connect tracks as shown (marked in blue). Open in Desktop Download ZIP. Nick Strong. You can see it below in the upper left corner between the Raduino module and…. the 45 MHz crystal filter spurious signal mod done early and this one with the L5 & L7 replacement I took my other uBITX main board with no mods done on it at all and swapped out the L5 and L7 on it with the SMD inductors and ran the same before and after tests. The easiest first step to reclaiming arduino Andy KB1OIQ has posted a file on the [BITX20] IO Group files page: kb1oiq_i2c_mod. I received the feedback from a thankful beta tester and tested it myself by converting my uBITX v3 to v5 but I was not sure. This is a simple idea to apply ubitx ver 4 audio amplifire, Tx popfix and S-meter sensor(LM386)by Lee to ubitx ver3 pcb all details and pcb design are on my blog, vu2kyz. I'll show you how to upload a compiled hex file as a second. New pull request. Eddie loves to be QRM, well cat made noise in the shack. 5mm phono mic jack was ditched for a GX16 mic connector. Click to find the best Results for knobs Models for your 3D Printer. receiver rit. The add on AGC is a necessity. Launching GitHub Desktop. NOTICE: STORE WILL OPEN AFTER 17 MAY 2020. The cover can be placed with the speaker in the front or back side of the case. You can order a uBitx (or Bitx) from HF Signals page. Instead of the code saying "I want to know what the user is doing with the encoder, let me sit here and spend 200ms watching the encoder wheel to see whether it's turning. The screen board is just a bit off, and my jacks for the phones, mic and key needed a hair more too. This enclosure is 8. ND6P came up with this mod after testing his uBITX on the bench to determine how much signal it could handle before distorting at the speaker due to clipping of the audio signal. This is a custom encoder knob designed for the uBITX transceiver, a general coverage ham radio transceiver designed by VU2ESE. NB: Due to slight variations in printing techniques, some materials may need slight filing and/or shimming (e. Among others, there’s a top board mod that adds speech compression, an integrated Teensy 3. Both branches are being actively developed. 1 uBITX firmware for Nextion LCD. irf-510 mosfet push-pull amp. The easiest first step to reclaiming arduino Andy KB1OIQ has posted a file on the [BITX20] IO Group files page: kb1oiq_i2c_mod. installed new filter and coil mods for harmonics and spurs. uBitx, its a nice solution but in kit form. The aim of this small group is to collaborate and work towards an add on board that will. uBITX Transceiver semi-kit build. This is my version of an enclosure for the popular uBITX HF transceiver in its unmodified form. This email address here doesn't get checked that often. If nothing happens, download GitHub Desktop and try. 00 out of 5 $ 45. AM? This bunch has been direct injecting for decades. SSB and CW. I needed to increase the height by 2mm to make my uBitx fit. Add to Wishlist Compare. Variable filter bandwidth mod. Calibration is a 2-step procedure that involves accessing the 'Preferences' menu and setting the BFO so that noise from the speaker falls within parameters described here. 1 uBITX firmware for Nextion LCD uBITX firmware has released. Clone with HTTPS. Category: uBitX. easy build and installed all new relays axiom. This enclosure is 8. The add on AGC is a necessity. uBITX Broadcast Band Filter Construction Manual. Still even more Hacking of the Bitx40! 1/7/2017 ~ Dress up your OLED Display! Same code works for the Color or Black and White OLED So there is no reason why your Bitx40 cannot have the finished feature rich appearance just like those kilobuck black boxes. It is designed to print to printers, such as lower volume or. Some 29 years ago in the December 89 / January 90 QST Wes Hayward W7ZOI had an amazing project -- a 20 Meter QRP SSB/CW transceiver. in Thanks to. 8″ TFT display. Hex files with file names ending in _NX. COM Sign in Sign up. I received the feedback from a thankful beta tester and tested it myself by converting my uBITX v3 to v5 but I was not sure. Hex files for various LCD since 1. This document does not describe the use of uBITX and uBITX Manager. The µBITX presents some challenges with RF AGC system design: There is no RF preamplifier to use as a voltage-controlled attenuator, it is broadband and includes no tuned circuits in the receive path, and the intermediate frequency amplifiers are not configured for variable gain. Ashhar Farhan [email protected] Variable filter bandwidth mod. Then position sub-board on main PCB as indicated and connect tracks as shown (marked in blue). Want to be notified of new releases in afarhan/ubitx ? Sign in Sign up. This is the home page's excerpt. This knob is designed to work with the stock potentiometer, and is friction-fit (no set screw). We are getting same results on both of them. Instantly improved harmonic suppression by about 10dB for me. #N#Radio Battery switch (RBS). Add all uBITX mods here. The uBITX may become one as well and like the HW-8 there will be (and already are) all sorts of mods/additions one will be able to do. 8 MHz - 29 MHz). Release CEC Firmware v1. Complete with all the missing fittings, speaker, knobs, USB, SO239, mic skt, etc (the full list of parts is on the website).  It was the Ubitx and it blew me away what it could do for such a low price. 1 product rating - 4pcs smd 680nH inductor size 1210 B82422T1681K 680nH1210 EPCOS for uBITX $1. ubitx #v6 Screen Speed Mod, and interrupt driven encoder wheel mod #v6. So here is the modification procedure to install a nextion 2. New QRP-uBITX in the shack - I - Welcome preparations A while ago, a friend asked me to fix his uBITX. Sign Up No, Thank you No, Thank you. 6v at the collector. The audio preamp (Q70) in the uBitx isn't biased optimally and therefore overloads about 10 dB sooner than it should. All orders that are in process will be filled and mailed to the best of our ability. Just remember this : The CW keyer has to be wired even if you don't intend to use CW. In other words, the V5 looks to be cleaned up vs. uBITX FLDIGI and FTBCAT Configuration. Cineva spunea ca FT8 este "singurul mod de a face o legatura si, in acelasi timp, sa servesti cina" si sunt. 5 Mhz to 30 Mhz with 10 watts power uBITX transceiver. 073Beta version as below Since Version 1. 200 for uBITX All Version (include v2, v3, v4, v5) I did the firmware work for v5 when uBITX V5 was released, but I release it now. Air-Core Inductor Calculator. ino: PCF8574 for more buttons and band/step select: Jul 4, 2018: ubitx_menu. SSB and CW. Add to cart. The first one while I wait is going to be putting shielding in a plastic container for my rig while I wait for it. er1catwork. Nick, just sent you an email from my good email address that goes straight to my phone. uBitx mods The first one while I wait is going to be putting shielding in a plastic container I have the blue display on its way for the radio rather than puke yellow and black. Other sizes can also be made to work, but not all firmware works with the latest CEC uBITx firmware or the uBITx Manager Windows software. The uBITx Transceiver Kit. 1 includes all additions or improvements from 1. net recommends installing an AGC circuit Why include an AGC circuit in your µBITx? The µBITx comes without an Automatic Gain Control (AGC) circuit. A General Coverage HF transceiver kit – No soldering required. Alternate PL-259 Installation. Click here for (v3) uBITX | Click here for (v4) uBITX Homebrewers have traditionally avoided making multiband transceivers as they can get extremely complex and difficult to make. Please forward to the…. 8, If you want something stable, use V 0. uBITX RF Power and Gain Issues. This rig has been in regular use on forty and twenty meters for a few months at VU2ESE. com)-Done Upgrading the firmware to the KD8CEC firmware/Memory Manager (hamskey. Minimal controls. 2 Nextion Enhanced display as well as a 7 inch Nextion Enhanced display and the code seems to be working fine. - Duration: 28:39. From United Kingdom. This cover is intended to be printed in three parts and is assembled with hardware confined uBITX use. In the CW mode the uBitx is placed into transmit by means other than tripping the PTT circuit. Complete details on the working of the AGC and schematic details are available in the download page. I look forward to building it and I am going to do a write up here on the assembly and mods I plan to do. Due to lock down extended in India till 17 May 2020 there are no services of DHL or post. Just stumbled across this. ND6P came up with this mod after testing his uBITX on the bench to determine how much signal it could handle before distorting at the speaker due to clipping of the audio signal. For your information, the uBITX is an all-band HF SSB/CW QRP transceiver that comes tested and nearly ready to use for only $120 delivered. With headphones on, the inability of the uBITx to reduce gain in. • IF YOU WANT TO TRY JUST 40 METERS, ORDER A. ubitx functional diagram. The Gaz Lab 2,104 views. hmi code for the larger screen by the end of the week. Thanks for the add just built my Ubitx this week! will be interesting to see what mods can be done 73. Metal enclosures for our various projects. 2 touch screen display. Due to the interruptions of parts delivery from COVID-19 repercussions we are having to suspend taking orders temporarily. com website for the Bitx40 are final but not necessarily correct. I received the feedback from a thankful beta tester and tested it myself by converting my uBITX v3 to v5 but I was not sure. What he found is that RF input signals greater than S9+5dB (-68 dBm) become distorted due to the audio output clipping on the negative side. Complete details on the working of the AGC and schematic details are available in the download page. Use CEC version firmware 0. I've built the entire receive chain for the bitx20 with some mods for 40m which was quite good fun, although the LO comes from my Marconi 2019A because I had no variable capacitors around. Cineva spunea ca FT8 este "singurul mod de a face o legatura si, in acelasi timp, sa servesti cina" si sunt. uBitx CM2KMK 2017 mod version of PCB. net, and I'm a little overwhelmed. Release I2C Type Signal Meter firmware V0. I got some time to work on my digital S-meter/AGC concept. On this site I hope to pass along information, projects, and ideas to the QRP community. The aim of this small group is to collaborate and work towards an add on board that will. Take a look at the site dedicated to tracking mods and get on the mailing list. I grabbed a 2. Each file cannot exceed 2MB. UbitX ver 4 Audio amlifire and Tx popfix plus S-meter sensor PCB I have ubitX ver3 working well with SSB and Digital mods Just now om Farhan released ver 4 circuit with new transistorised audio amplifire and Tx popfix circuit,and mods in Rf PA, I decided to apply audio amp and popfix mod to my ver 3 pcb,and also want to upgrade software. Comments (0) Likes (0) Upload a photo: Browse You can only upload 1 files in total. Pcb is made from CM2KMK 2017 mod version. uBitx Topics. This knob is designed to work with the stock potentiometer, and is friction-fit (no set screw). Open in Desktop Download ZIP. Enter the NXP. Still even more Hacking of the Bitx40! 1/7/2017 ~ Dress up your OLED Display! Same code works for the Color or Black and White OLED So there is no reason why your Bitx40 cannot have the finished feature rich appearance just like those kilobuck black boxes. Requires more mods, including one that drives the BFO from the si5351's clk. With the mods in place I can now start the assembly proper. The odd pins connect to the Raduino and audio connectors. This transceiver is a fairly good option for operators who have experience building kits, and also want to get into the world of HF operation or just want another rig as a QRP on the go radio. uBITX Manager is used in the same way. NB: Due to slight variations in printing techniques, some materials may need slight filing and/or shimming (e. Category: uBitX. Ashhar Farhan [email protected] 1 product rating - 4pcs smd 680nH inductor size 1210 B82422T1681K 680nH1210 EPCOS for uBITX $1. The screen board is just a bit off, and my jacks for the phones, mic and key needed a hair more too. 8″ display to Ubitx V6: ubitx v6 TFT RADUINO BOARD SCHEMATIC. Clone or download. The audio preamp (Q70) in the uBitx isn't biased optimally and therefore overloads about 10 dB sooner than it should. Recommended fixes and mods. I had to use a separate volume control and power switch because the original was too bulky. uBITX Manager is used in the same way. The AGC has a S-meter tap as well as a place for RF gain control that can be remote mounted with a 1k pot. In this post I am going to discuss two very simple but very essential add-ons for Bitx and other similar type of QRP sideband rigs. Requires more mods, including one that drives the BFO from the si5351's clk. 5 KW amp in CW. Complete with all the missing fittings, speaker, knobs, USB, SO239, mic skt, etc (the full list of parts is on the website). In addition to using Don's AGC and Reverse/Forward Power and SWR. 1 uBITX firmware for Nextion LCD. uBITX Case thingiverse. I've an Alinco DX-70TH which I gave £200 for and its a super rig, there are lots of of radios out there for similar money. This document does not describe the use of uBITX and uBITX Manager. I calibrated my uBITX (v6) today and made my first SSB QSO with the rig. In particular, click on the BITX20/album link to see the spectrum analyzer plots of the transmitter output. literally all the ubitx needs to fix the spurs is replacing the LPF relays with name brand ones instead of the cheap ones, which is a roughly 6€ mod. Use other posts or manuals. 7K resistor to 5v is a must. So Im excited to say I ordered both the case and the radio. 091, uBITX Firmware release. Loving my uBitx and the KD8CEC latest firmware, using 2 arduino's. Since ordering and beginning the slow-motion assembly of my uBITX - interrupted by Santa and work - I've had a lingering voice in my mind telling me that a 3-30 MHz $110 transceiver can't really make QSO's or even receive well. For example, if the offset frequency is 30. ZS2LN from South Africa is in the house thank you. New QRP-uBITX in the shack - III - Transmitter section mods OK, it was the time to see how the TX section of the uBITX is. The uBITX may become one as well and like the HW-8 there will be (and already are) all sorts of mods/additions one will be able to do. This email address here doesn't get checked that often. uBITX arrives and Assemble - ordered a week ago arrived via DHL. It is also helpful to protect your rig from shorts (when modding the rig) and from IRF510 thermal runaway or parasitic oscillation. Eddie loves to be QRM, well cat made noise in the shack. Page 4 Chebychev Low pass filters, 0. I also used some height tilting feet I modded off the original design, and a fan cover I made myself for the fan. My new uBITX Is up and running 18 Feb. After three days of operation on 40 Meters it was clear the uBitx needed some shoes. A General Coverage HF transceiver kit – No soldering required. It arrives within a week. The uBITx Transceiver Kit. KJ5VW's Cool uBITX Mods (Video) Nigerian Knack: Hope Emmanuel Frank; FDIM Interview with KI4IO -- Homebrew Direct Conve Woz on the air -- Age 11; FDIM Interview with Hans Summers G0UPL on QSX SDR Pete sent me his SBE-34; Stop what you are doing! Go to the Radio Garden! Another Amazing SSB Rig: VK3HN's "Summit Prowler. BITX20 [email protected] Nice visiting this splendid blog. You may think that you will never hook up 12v the wrong way round, but none of us is perfect. Good info on this blog by John. Mic Connector XLR 1, PCB For USB connector 1, USB Connector , D9 Connector 1, Stereo Connector PCB Mount 2, Universal Case For ubitx 1, and a Front Panel 2. uBitx mods The first one while I wait is going to be putting shielding in a plastic container I have the blue display on its way for the radio rather than puke yellow and black. Each file cannot exceed 2MB. Posted on December 30, 2017 January 19, 2018. For your information, the uBITX is an all-band HF SSB/CW QRP transceiver that comes tested and nearly ready to use for only $120 delivered. Nick, just sent you an email from my good email address that goes straight to my phone. ubitx 20x4 - sketch for the raduino to work with the ubitx transceiver using a 20x4 lcd - vk3dan/ubitx-20x4. In particular, click on the BITX20/album link to see the spectrum analyzer plots of the transmitter output. uBitx HPF High Pass Filter Mod Board 3. There are numerous AGC circuits that constructors have experimented with. Smitty, KR6ZY This is a software-only mod that improves the responsiveness of the encoder wheel. com via groups. My new uBITX Is up and running 18 Feb. 8″ display to Ubitx V6: ubitx v6 TFT RADUINO BOARD SCHEMATIC. CW transmit with the built-in keyer. ino: PCF8574 for more buttons and band/step select: Jul 4, 2018: ubitx_menu. 8, If you want something stable, use V 0. Author Topic: uBITX (Read 1486 times) 0 Members and 1 Guest are viewing this topic. Based on Arduino Nano controller. The uBITx Transceiver Kit. Reverse polarity is damaging to your uBITx. Add batteries and its low current consumption will make it an ideal travel companion or a great station rig. in Thanks to. We focus on the technical aspects of ham radio/amateur radio, and …. uBITX arrives and Assemble - ordered a week ago arrived via DHL. In order to install as suggested by the folks at uBitX I had to scrape some traces and fold out the inductor leads. NB: Due to slight variations in printing techniques, some materials may need slight filing and/or shimming (e. Contribute to afarhan/ubitx4 development by creating an account on GitHub. I will update the website soon too. This transceiver is Farhan' s uBitx mod - 10 watts, easy to build, general coverage SSB/CW transceiver for HF bands. Please forward to the…. QRPGuys is an organization of hams that offer budget and unique ham radio kits. Welcome to my corner of the QRP world. Remove C50 and C63 from the uBITX board and solder them onto the new board. Author Topic: uBITX (Read 1486 times) 0 Members and 1 Guest are viewing this topic. , the beach). The walls are 4mm thick and the case comes with standoffs to secure the pcb to the enclosure along with the rails. Other fIxes that seem to work: Raj and others have experimented with and tested possible solutions. FM? I don't see the point but clipping and limiting ahead of tuning (varactor) is easy. Complete details on the working of the AGC and schematic details are available in the download page. 00; Universal Case DA Grey. 5mm sockets for mic. And even with my large wooden box, the rig and all its accouterments fit into my carry on baggage (and there were no problems with airport security). 22 watchers. Parts needed 1 x 10k variable resistor; 1 x 100 ohm resistor ; 1 x 10K ohm resistor; a piece of RG174 (or other shielded cable) a 3. The uBITX V6, winter weather and power outages 13 Replies Yesterday, a weather front moved through the area that dropped temperatures from an unseasonably high of 50F to 25F in the space of a couple of hours. This transceiver is a fairly good option for operators who have experience building kits, and also want to get into the world of HF operation or just want another rig as a QRP on the go radio. This is a direct solder in AGC for only the Ubitx radios, based off ND6T's design. Calibration is a 2-step procedure that involves accessing the 'Preferences' menu and setting the BFO so that noise from the speaker falls within parameters described here. 000000 Mhz and the frequency displayed on the uBITX LCD window is 7. The uBITX is 10 dollars cheaper (after 12/25) works 80-10 M, does SSB in addition to CW, and is a Superhet to boot! Farhan your hit this one out of the Ballpark! Very cool, Pete!. 072 BITx hacks uBITx video guide series uBITx YouTube Playlist. Icom America Inc. 091, uBITX Firmware release. 73 Juddie WD8WV. #N#Radio Battery switch (RBS). The ubitx hangs off the top of the case so you can put mods or batteries underneath. 5mm phono mic jack was ditched for a GX16 mic connector. Use CEC version firmware 0. Links to download the firmware can be found on the main page of this site or from the KD8CEC website. New QRP-uBITX in the shack - I - Welcome preparations A while ago, a friend asked me to fix his uBITX. LiPo Battery. com)-Done Upgrading the firmware to the KD8CEC firmware/Memory Manager (hamskey. The V2 code allows you to do more stuff, such as adjust the BFO frequency to better align with your crystal filter. Updated ubitx. The intial 100 boards are here. The only additions I'll do before the first power up are the two fuses they suggested adding for obvious reasons. uBitx v5 Changes. For best large signal handling, it should be biased to 5v or 6v. If you are using through-hole parts or polarized capacitors like elctrolytics or tantalum, be sure to be sure that the positive end faces the jumpers, the negative ends toward the drains of Q1, Q2, and Q3. installed nextion 3. Two of these pins are used for the Emic2 text-to-speech module. The even pins are hardwired to the uBitx. The screen board is just a bit off, and my jacks for the phones, mic and key needed a hair more too. Adding an External Linear Amplifier Control circuit to your uBitx Adding some big "shoes' to the uBitx! So OK the concept of the Bitx and uBitx is to operate QRP and with the new design of the uBitx having 10 watts is an excellent power level for making contacts. W6RAG's ubitx 4 mods and experience with Q90 burnout - Duration: 7:42. com) -Done adding a better power switch to the front of the rig (complete with LED indicator) -Done adding a […]. The Raduino board plugs. uBITX is pre-assembled with most parts as SMD. The uBITX may become one as well and like the HW-8 there will be (and already are) all sorts of mods/additions one will be able to do. NET RECOMMENDS YOU FIX FOR REVERSE POLARITY DAMAGE. The uBitx is known for the uneven TX output depending on the band selected. add an AGC. The uBITX V6, winter weather and power outages 13 Replies Yesterday, a weather front moved through the area that dropped temperatures from an unseasonably high of 50F to 25F in the space of a couple of hours. New QRP-uBITX in the shack - III - Transmitter section mods OK, it was the time to see how the TX section of the uBITX is. The µBITX presents some challenges with RF AGC system design: There is no RF preamplifier to use as a voltage-controlled attenuator, it is broadband and includes no tuned circuits in the receive path, and the intermediate frequency amplifiers are not configured for variable gain. To cure all these problems I installed a nextion display with Ian Lee, KD8CEC’s Ubitx5 firmware and it worked. I'm running the Arduino ADC in continuous mode at 9600 conversions/sec. BITX20 [email protected] This means that very loud stations over-power the audio amplifier. Continuous coverage from 500 KHz to 30 MHz. 6th mod : removing 7805 from Raduino and reverse power protection. At its price of $150 (w/o case) this is an easy rig to dive into in an attempt to improve its performance - something I wouldn't do with a $1000+ rig. The screen board is just a bit off, and my jacks for the phones, mic and key needed a hair more too. 1 product rating - 4pcs smd 680nH inductor size 1210 B82422T1681K 680nH1210 EPCOS for uBITX $1. 6v at the collector. This group exists for constructors of the various BITX projects, to discuss all aspects of the design and construction including problems, components, modifications and experiences using the rigs. This email address here doesn't get checked that often. The walls are 4mm thick and the case comes with standoffs to secure the pcb to the enclosure along with the rails. TSW's NEW Teensy 4. The power connector has 3 leads (Ground, Radio, and PA) to facilitate this mod. I am adding a Nextion 3. You will need to be logged in to the Group page to access the file. Alternate PL-259 Installation. I got my UBITX a couple weeks ago, but haven't had time to turn it on. The uBITX (Micro-BITX when spoken aloud), is an SSB and CW transceiver that covers all of the HF amateur bands, and like the original is designed for the home constructor on a budget. Reply Delete. uBITX RF Power and Gain Issues. Just remember this :. The fan I ordered had the wire come out a different spot so I needed another small hole in the "heat sink" for that. Sideband selection. Ken – wa4mnt …. Other fIxes that seem to work: Raj and others have experimented with and tested possible solutions. Not a big deal, the volume control does nicely in most instances, but I find an RF gain control almost a must. I have the radio ready for testing will it work? or have I mixed up the ribbon cables:-) Thanks for dropping by, Im building the. vfo a and vfo b. Category: uBitX. Domestic shipping costs was more than the parts cost if you are ordering from a big company. So uBITX's firmware upgrade method is the same as Arduino. ND6P came up with this mod after testing his uBITX on the bench to determine how much signal it could handle before distorting at the speaker due to clipping of the audio signal. New QRP-uBITX in the shack - III - Transmitter section mods OK, it was the time to see how the TX section of the uBITX is From time to time I also tested how it fits inside the case The radio PCB was fixed on a larger one-side plated PCB that slides into the aluminium case. The video below contains most of the examples in this article. The uBitx V5 is now in production. The uBITX main board and parts have been safely contained in plastic box. Due to lock down extended in India till 17 May 2020 there are no services of DHL or post. Please forward to the…. 8 Inch And 1602 Panel. ubitx 20x4 - sketch for the raduino to work with the ubitx transceiver using a 20x4 lcd - vk3dan/ubitx-20x4. 0 to NANO adapter card was designed to work specifically with the new uBITX Version 6 with the color touch screen. I've read over all the info on ubitx. This transceiver is Farhan's uBitx - 10 watts, easy to build, general coverage SSB/CW transceiver for HF bands, made from CM2KMK 2017 mod version of PCB. But, as others have pointed out, you can pick up older HF radios for small prices. Release I2C Type Signal Meter firmware V0. Small and inexpensive add-on unit to run your QRP rig off a LiPo battery pack. Universal Case DA Grey $ 45. The uBitx CW mods and final assembly, tests and RX and TX light. Domestic shipping costs was more than the parts cost if you are ordering from a big company. 4" TFT display from another project and connected it to the Nano I am using as a test bed. This sure makes the uBITX look the part in the shack. ZS2LN from South Africa is in the house thank you. Ken – wa4mnt …. This sure makes the uBITX look the part in the shack. Minimal controls. I/O JP2 and JP3 plug into connectors soldered on the underside of the uBitx. to uBITX and the other will upload to Nextion LCD. In the CW mode the uBitx is placed into transmit by means other than tripping the PTT circuit. 2 touch screen display. 3K subscribers. Sign Up No, Thank you No, Thank you. net, and I'm a little overwhelmed. If nothing happens, download GitHub Desktop and try. Reply Delete. This group exists for constructors of the various BITX projects, to discuss all aspects of the design and construction including problems, components, modifications and experiences using the rigs. 2 Nextion Enhanced display as well as a 7 inch Nextion Enhanced display and the code seems to be working fine. All orders that are in process will be filled and mailed to the best of our ability. Discussion in 'Homebrew and Kit Projects' started by AF7XT, Jul 19, 2019. Then position sub-board on main PCB as indicated and connect tracks as shown (marked in blue). Launching GitHub Desktop. 200 for uBITX All Version (include v2, v3, v4, v5) I did the firmware work for v5 when uBITX V5 was released, but I release it now. hmi code for the larger screen by the end of the week. The µBITX presents some challenges with RF AGC system design: There is no RF preamplifier to use as a voltage-controlled attenuator, it is broadband and includes no tuned circuits in the receive path, and the intermediate frequency amplifiers are not configured for variable gain. Once this was done some careful work with the soldering iron and some fine tweezers allowed me to finish the job. 5 Inch Display. Kits have been distributed and folks are happily building the kits. Yesterday at 4:56 AM. If nothing happens, download GitHub Desktop and. BITX20 [email protected] In the CW mode the uBitx is placed into transmit by means other than tripping the PTT circuit. uBITX Manager is used in the same way. inches by 6 inch board with minimum wires and controls that you can drop into any box and wire up within an evening. AGC for Ubitx thru hole pcb. Ashhar Farhan [email protected] The case comes predrilled, with the cut out of the panel for the frequency display, ready to house the uBITX PCB. 8 is a beta version). kb1oiq_i2c_mod. 93 shipping. net Mod: Add AGC - uBitx 5-6 minutes ubitx. com website for the Bitx40 are final but not necessarily correct. This website is dedicated to the uBITx. This rig has been in regular use on forty and twenty meters for a few months at VU2ESE. The case comes predrilled, with the cut out of the panel for the frequency display, ready to house the uBITX PCB. You can also replace the 1K resistor at R250 with a 10 K resistor to increase the sidetone volume. The uBITX may become one as well and like the HW-8 there will be (and already are) all sorts of mods/additions one will be able to do. This video shows the evolution of my uBITX,(USING THE VERSION 3 UBITX BOARD, including additions, modifications and comparing two different types of filters I have used with the uBITX. The following examples are based on version 0. Showing 1-24 of 41 results Grid view List view-13%. Ubitx V3/V4 Outboard Relay mod. One thing that I neglected to mention was the amount of internet support there is for the uBITX transceiver kit. AGC makes for a much more pleasurable experience. That night on the net I read of other ‘s building it with lots of mods and a to. 8" LCD touch screen is it's replacement. For your information, the uBITX is an all-band HF SSB/CW QRP transceiver that comes tested and nearly ready to use for only $120 delivered. I've built the entire receive chain for the bitx20 with some mods for 40m which was quite good fun, although the LO comes from my Marconi 2019A because I had no variable capacitors around.
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