there are some creaky bones like us who are stull puffing the ol bitx20. this way before this city came up here. we'd hunt 'em nylon tap washers and cook 20 meters on nights of 2009 cycle. - f

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The original poster is asking about his BITX20, not the µBITX. Farhan released the µBITX design in early 2017. It was first available commercially through HF Signals at the end of 2017. His BITX desig

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Possibly one of the mixer diodes is in backwards. The original BITX20 had a very sensitive receiver, which allowed spurious signals to be heard if there was no RF input and if the volume was turned up

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I'm not trying to be funny but... If it were me, I'd get a V6 and look at that original version as some replacement parts. I know you are determined to make that work but consider the operating time y

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i built the bitx20 original version in 2012 but it functioned very badly I built it clean with a PCB board (not the ugly style) But the reception was rather deaf. except from unwanted beep tones. I su

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Hi, I have ver3. I get garbled audio even after aligning the BFO. There is also a -ve frequency offset of 2khz. Any inputs as to how I could correct it. Thanks in advance Rajesh VU3RHU

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Thanks Evan for the quick response. I will try. Shall keep you posted. Regards Rajesh

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Rajesh, I am not familiar with the larc version software. I am pretty sure that it will not work with the KD8CEC Memory Manager, though it does appear to have a CAT routine. A quick look at the code a

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This is the version I am using

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HI Evan, Many thanks for the quick revert. My call sign is VU3RHU and my QTH is Mumbai - 400004. I am using the ver 3 stock software which I got with the unit in December. I have downloaded the 1.11 m

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Rajesh, The current KD8CEC Memory Manager version I believe is 1.11. Here is the link to the GitHub repository: https://github.com/phdlee/ubitx/releases/tag/v1.11 And Dr. Lee's webpage that explains w

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Hi Evan, Which memory manager version is this. May I request for the link. I have Ubitx ver3. What should be the calibration value. So also seek some inputs on eliminating audio distortion. Thanks Raj

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Hi, yes I confirm/agree the effectiveness of the KD8CEC Memory Manager to select transmit offset according to sidetone frequency (drop me a message if you need more infos). And I also had exactly the

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What mode, SSB or CW? That makes a difference. The advice I gave Andrea was for SSB. I have not really used the CW mode for QSOs, so I do not have direct experience with the offsets of transmission vs

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All, Good Morning. Sorry for the placement in this topic, but, I have an uBITX v4, firmware v1.097, this with differences in transmission and reception frequencies, how do I fix this, can someone help

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Yes, all of the calibrations are available in both the onboard software and the Memory Manager. This does depend on which of the multiple Nextion screen files you have used for your upgrade. In order

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the firmware version is correct. I can think that it is mostly related to a missing calibration. I overwrite the firmware directly on the original nano but as you wrote this shouldn't affect the data

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Andrea, There are two possibilities: 1 - You loaded the wrong version of the KD8CEC software. There is a version for the v5 and v6 ubitx (uBITXV5), and one for v2/v3/v4 (you want this one-uBITXV234).

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Hi, since the beginning I'm experiencing the fact that I nee to move the IF aroundf 1800 - 2000 (it varies a little thorugh the different band) for receiving the correct modulation. I was thinking it

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Hi Malcom, Thank you for sharing your schematic for the unit. Will check the junk box for parts before ordering parts, or possibly David's kit. I'll check your QST lead for further information. Thank

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