开云体育

I'm having multiple problems, starting with alignment. I'm going through the alignment procedure, and setting the PA Bias preset works fine, I have it set at 100 mA. The problem is when I yell into the microphone the current doesn't change a bit no matter where RV136 is set, from end to end. I thought it might possibly be a bad electret microphone element, so I tried grounding pin A1 (8-pin connector P1, brown wire) to simulate a CW key press, but same result. I verified 12 vdc on the PA power connector. So, first issue is not being able to adjust the PA drive current.

Thinking that maybe the raduino settings needed to be adjusted, since after the display goes through it's power-on messages it shows "--- SETTINGS ---", next I wired up a momentary-on Function button between connector P1 orange wire and ground. Pressing this button has no affect. I tried repeated button presses, and long presses over three seconds, nothing. So it powers up in Settings mode, short presses have no affect, and a long press doesn't change to Normal mode. I tried holding down the Function button during power up, but it makes no difference.

For what it's worth, the tuning function seems to work fine, moving up and down the band in 100 Hz steps until either end of the tuning pot is reached then it starts incrementing 10 kHz. Has anybody seen these issues, or know what might cause them? I've been searching the archives, reading threads, but it's like looking for a needle in a field of haystacks... :)

Mark
W4MAP

On Fri, Jun 23, 2017 at 08:06 pm, <kivafolks@...> wrote:

For what it's worth, the tuning function seems to work fine, moving up and down the band in 100 Hz steps until either end of the tuning pot is reached then it starts incrementing 10 kHz.

For what it's worth, that is normal!

Did you try updating the software? It should not come up in the "Settings" mode. Could also?be that there is a short somewhere between pin A3 (orange wire) and ground making the processor think that you are holding the function button. I'm not sure if it can transmit when?it's in "Settings". Mine is packed up in the car for Field Day, so I can't even try that out for you.

?
--
John - WA2FZW

It looks as if the Raduino somehow thinks that the function button is kept pressed all the time, which causes it to restore the 'factory' settings each time at start up, and then jump into the SETTINGS menu.

This could be caused by:
- incorrect wiring
- wrong switch type (type should be normally open, closed when pressed)
- defective switch
- input A3 is 'fried'

Check the voltage on A3 (orange wire) with a DVM. Should be HIGH (+5V) when FB is not pressed, LOW (0V) when FB is pressed).

Disconnect the switch (orange wire is open). Voltage on A3 should be HIGH. If it's LOW all the time then the input A3 may be 'fried'.

73 Allard PE1NWL

It was the Nano. There was no voltage on A3. Uploaded Raduino 1.15.1 and Etherkit SI5351 v2.05 to a new one, plugged it in, and it came up NOT in SETTINGS mode, and I heard faint morse code, with the dummy load connected, lol. Thanks for the troubleshooting hint.

Mark
W4MAP