Mine has a diode where that is supposed to be.

I now understand I should swap out the relays but there is still part of my original question.

I asked if there are any mods that need to be done to the current version you are shipping

Is there a list somewhere or or is the rest of the V4 ready to use?

Thanks in advance.
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Lee - N9LO? "I Void Warranties"

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1) When we followed Tune up instructions for adjustment of the Power Amplifier Bias - All currents measure ok by instructions up until speaking into microphone, the current did not increase as per instructions, Can you help?
2) Audio output extremely low?
3) 10k and 2.2k resistors in parts list not mentioned in wire up diagram, where do they go can you help?

Regards
Will Bennett VK4WBX

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When I had the same problem changing the encoder fixed it. Good luck!

Hi I concur with Jack about capacitive screens being less precise. I have a tablet with capacitive screen it it some times jumps to conclusions with out me touching it. I have also noticed it doesn't like RF but that may be just mine. Anyway eagerly awaiting the boards. Many thanks for the work and effort put in to the designers and testers.

Barry?

For Sale: first run uBITX. Never powered up. Including lots and lots of extras: USB extension cable to have a socket on the outside of your case. 3D printed knobs - pot & encoder and LCD bezel (all in black filament), Sunhil's accy. kits - AGC kit, LED Meter kit, and audio mute kit. Also have the two K5BCU kits, plus including a 4SQRP HI-PER-MITE CW filter kit (none of the kits have been built. Also including a blue as well as the green LCD. Asking $125 - includes Priority Mail flat rate padded envelope - ONLY IN USA. Sorry.?
Please email me off line. I will not respond to the group. Oh, I still have the original plastic box it came in also.?

I never got around to building it and would like to sell the whole to someone at a good price.
PayPal only (friends & family - or pay my fees).
Thanks.
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Dan Reynolds -- KB9JLO
<><

Have you tried it with the stock firmware? When I rebuilt the last one with the last 1.1version, The display locked up until I went back to 1.08 cec firmware with the stock display and it came alive again. The 1.1 version seems to like the nextion display. Before you start changing things start from ground zero.

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Make sure they aren’t shorted together. ?Check the encoder inputs then turn the knob a minimal amount and check them again, only one should have changed.

Checked encoder signals at the connector on the cpu board. The correct 5v to 0v transitions are there.

There is no lock symbol on display, but powered down and back on. Without doing anything else, I tried to tune and it would not tune.

Good thought...? That feature "got" me for a minute when it first happened.
Power off reset should fix...
Woody

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I have completed my new ubitx and it will not tune. I have checked the messages here for this problem and have followed some of the others suggestions by installing the new CEC software. On power up, the display shows 7150khz. Turning the encoder in either direction does not change the frequency. I have checked the encoder and I get the 5V to 0V transitions on ENC A and ENC B. pressing the encoder knob in, I get the "set tune step?" however, I am unable to make any changes. Transmit and receive seem to be functioning OK on the 7150khz frequency that is displayed. HELP???

_._,_._,_

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If you hold the function button down for a couple of seconds it locks the frequency. Per chance did you do that? There is a small lock symbol on the display.

I have completed my new ubitx and it will not tune. I have checked the messages here for this problem and have followed some of the others suggestions by installing the new CEC software. On power up, the display shows 7150khz. Turning the encoder in either direction does not change the frequency. I have checked the encoder and I get the 5V to 0V transitions on ENC A and ENC B. pressing the encoder knob in, I get the "set tune step?" however, I am unable to make any changes. Transmit and receive seem to be functioning OK on the 7150khz frequency that is displayed. HELP???

A ham friend, a Bitx owner, my Elmer, KD0YTE, gave me a Nextion display for Christmas. I was surprised at how easy the install went on my ubitx v3.

A big thanks to both KD8CEC for designing such a neat product and KD0YTE for giving me the screen.

Attached you find one of the relays I did replace with the Axicom ones. Mine is version 3, arrived in March or April this year. I don't have a real Spectrum Analyzer but I nearly always use a SOFTROCK ENSEMBLE with it (I currently use separate TX and RX like in the sixties also during contests) and the third harmonics of the 40m on 15m was likely down just 25db or so. The Axicom relays are better.

My V4 board got here today and I compared the relays with my V3.? They are the same.? I thought the new boards shipping were supposed to get new relays or is there a change on the board that fixed the problems without changing the relays?
--
Lee - N9LO? "I Void Warranties"

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