Your in out voltage is getting close to its lower limit + diode drop. Raj

If the blue bias pot is slightly skewed then one lead could be cut. Replace. Remove Q95 and check gate voltage as you vary the associated preset RV2. It should go from 0-5V. If not replace and set the

Not too clear what you did as I have not used Sunils case. Sometimes the culprit in such case is the EP socket. Some plugs have a different tip shape and may damage the contact inside the socket. If y

Hook up the SSM2167 board to TX 12V line. This way it will be off while receiving. Raj

Try a 12K from pin 4 to ground of AD8307, in another application some issues were cured by this. The nano is very high impedance and the 0.1uF from pin 4 to ground will take time to change value. Raj

When turned on with power connected, do you get 12V on the board. Start from the 3 pin power connector. Raj

Thats how it works but cant call it erratic. You will get the hang of tuning it. The quick jumps is fast tune. Tune gently! Raj

#ubitx

Does it transmit ? If not check the VFO connection from Raduino to board at DDS1. Raj

Check your mic element connection polarity. Raj

If power out on CW and SSB are both low then the PA gain is lower than expected or something with filters. Raj

#ubitx #ubitx-help

V4 has lower than desirable audio gain. Add a single stage transistor before or after volume control. It's fine with headphones. Raj

V4: One you do the spur mods these should reduce or go away! Raj

uBitx version ? Raj

He did say he deleted it!

I can see the photo Arv, an old gentleman with a violin!

Thats what I said. now the software can be compiled with the correct version and the IF will be correct and relays working in sequence.

#ubitx-help

Thanks Kelly, I have looked at this software at all. Obviously it was compiled for the wrong version!

#ubitx-help

Your IF should be set to 11.0555 for near perfect results. I am not familiar with versions of CEC but you have the wrong one for V5. Make sure the firmware is for V5 or go back and load factory versio

#ubitx-help

Did not take insurance ? I take the maximum possible for all my vehicles.

https://softsolder.com/2019/05/03/equipping-an-electronics-lab-on-the-cheap/ Cheers! -- Raj, vu2zap Bengaluru, South India.