If I use software PL/CSQ decoding, I was getting reports of something coming back from the node after they unkey. 

Turning RXondelay up to about 6 (6 increments of 25ms) it worked great until I tuned to the bottom of the 2-meter band and I had to turn it all the way to 15 to avoid problems. It's fine unless someone quick Keyes and then I will loose the beginning of their voice. 

This is a simplex GM300 node, so I am guessing there is a lack of high frequency noise immediately after I unkey. What I don't get is why it is worse at the bottom end of the VHF band. I guess the VFO is sick down there and takes longer to activate?

On my UHF GM300, I can get away with rxondelay set to 5 at 446.000. I haven't tested lower, but I won't be transmitting below 445.0

There is a variable inductor that I found near the receiver chip which actually improved tuning it from what I was initially getting, needing to set rxondelay all the way up to 25. (It's near the squelch pot) 

I am going to use COR  from the radio anyway so I won't have the  problem, but I was planning on modding one for 9600 baud which could never deal with the horrible TX/RX switching time that I am getting. 

Any experience with this issue here? Also, It's annoying that I have to run rxondelay, I wish it could just ignore the receiver immediately after the transmitter drops, no other time. Is there any other setting?

73

Skyler KD0WHB

--

Skyler Fennell

amsatnet.info

KDØWHB

electricity440@gmail.com

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