The All-band HF Amateur Radio Transceiver: Just waiting to be modified
Bill NG1P provides a bit more detail on his Top Band (160m) mod success. “I’m having a blast on 160m I did add larger heat sinks and a pair of small fans that I can turn on and off as needed to keep the finals cool if I’m long winded or using digital modes. “Qrp …
Bill Richardson NG1P has reported on his modified uBITx on 160m operation using a doublet antenna. “Doing some testing with my uBitx on 160m with a 160m LPF attached to the output. I’m seeing about 15 Watts out but the current draw is running very high at just over 3 amps. So not usable on …
Howard WB2VXW received his µBitx, assembled it, and started testing. He performed a number of modifications to the µBITx in his lab before moving it to its permanent home in the shack. In particular, he modified the transmitter to improve output power at the higher frequencies. The power out in the original state is about 3 …
There has been discussion recently about how to even up the power output of the uBITx across bands. Maximum output (in excess of 10w PEP) is achieved on 80m, while output on 10m can be as low as 1w PEP. Method 1: Preset replaced by Pot on Front/Back Panel John G0UCP says “Drive to the …
Mark AJ6CU has announced that he have completed what he considers a “beta 1″ for the 5″ version of the CEC user interface. Note this user interface is substantially different than the original one released by KD8CEC (see screenshots below). It has been optimized for 800×480 screens and is probably not easily migrated to smaller …
Continue reading “Lots of development on the 5″ Nextion screens”
Arv K7HKL has compiled a list of BITX related on-line websites, Facebook, and Blog sites on the Internet. https://www.facebook.com/groups/162905785921/ https://www.facebook.com/groups/QrpCuba/ https://www.facebook.com/BITX-Internet-Radio-385790155300101/ https://www.facebook.com/groups/105478459588498/394957117307296/ http://www.lakewayarc.org/tag/micro-bitx/ https://ubitx.net/category/help/ http://g1kqh.blogspot.com/p/blog-page.html https://4sqrp.groups.io/g/main/topic/another_qrp_transceiver/7488693?p=,,,20,0,0,0::recentpostdate%2Fsticky,,,20,2,0,7488693 http://lz2jr.com/blog/index.php/bitx-multiband-metal-enclosure/ http://bitxhacks.blogspot.com/ https://www.n1fd.org/2017/02/28/my-ssb-bitx-40-build-from-vu2ese/ https://qrznow.com/new-all-band-ssbcw-micro-bitx-now-available/ http://home.alphalink.com.au/~parkerp/projects/projbitx.htm https://www.reddit.com/r/HamRadio/comments/654zbz/hf_signals_the_home_of_bitx_40m_transceiver_for_59/?depth=1 https://vk3arh.net/2018/07/29/%C2%B5bitx/ https://vk3hn.wordpress.com/2017/04/07/arduino-cw-keyer-for-a-bitx-or-other-homebrew-rig/ http://soldersmoke.blogspot.com/2017/01/soldersmoke-193-28-jan-2017.html https://telanganatoday.com/a-blessing-for-the-small-guys https://wf7ihomebrew.wordpress.com/2014/02/02/bitx20-mic-amp-on-ltspice-common-emmiter-analysis-has-begun/ http://robs-blog.net/2016/11/ https://cqbitx.blogspot.com/ http://todayslatestnewsworld.blogspot.com/2016/06/re-purposed-computer-power-supply-box.html http://www.southgatearc.org/news/2017/january/bitx40-qrp-transceiver-video.htm#.XNIkUJxMFQI https://www.funnydog.tv/video/rtc03-smd-bitx-recieve-test/Z70XoTTNJO8 http://videominecraft.ru/watch/V_uBqbEV0-w/bit-o-bitx-homebrew-qrp-ssb-transceiver.html https://favids.com/ru/watch/IeODGiLPDuZ/ Youtube channels that have useful troubleshooting assistance: Alan Wolke …
Continue reading “BITX related on-line websites, facebook pages, and blog sites”
John (VK2ETA) has been working on a successful modification to get the clock #1 mixer to unbalance on CW key down. This involves the following steps: 1. Re-wire the T4 transformer input and output as per T2. That means as Jerry said to “… cut traces to T4 pins 3,5 and 6. Swap them so …
Continue reading “Control CW TX power by unbalancing the second mixer”
Dan W2DLC ordered his µBITx on December 29, 2017 and received it on March 2, 2018. It was a version 3 with the WX branded TDA2822 audio chip. (1) By the time he was ready to assemble it, Ron, W7HD had posted a fix using a voltage regulator. This was his first mod and he …
David N8DAH has been working on a few projects. The first of these is a CW Zero Beat If anybody is interested in a CW Zero Beat addition to their µBITx, then he has nine in kit form and one built for testing available. The kits are US$13 shipped inside the US. Add actual shipping …
Several constructors have put their µBITx in a Go Box for portable/emergency use, but this is one of the best looking results yet. Daimon G4USI has used a 3D printer to produce a very professional looking front panel. This is a re-mix of DU2RK’s uBitx Case, and the re-worked front panel of this case by …