RRC 1258 Support in English > General discussion forum
CW delay with Paddles
K5DN:
What is the delay from the paddle input to the time the rig keys at the other end? Is it one character plus latency?
Bob
K5DN
sm2o:
Hi
Yes every part (dit,dah etc.) of the character is sent direct over internet. So minium delay is the Internet latency.
But that works over internal LAN, Over Internet you should set a little Key delay ( keyer settings) also then the radio side will buffer x ms before starting transmitting, and then you avoid corupted characters caused by Internet Jitter.
73 de mike
sm0mdg:
--- Quote from: sm2o on 2010-10-28, 08:28:21 ---But that works over internal LAN, Over Internet you should set a little Key delay ( keyer settings) also then the radio side will buffer x ms before starting transmitting, and then you avoid corupted characters caused by Internet Jitter.
--- End quote ---
How much delay and what jitter buffer and delay do you recommend for a internet connection with 35ms ping time?
I have the default jitter settings on the radio side and tried 300 ms Key delay, but still get messed up CW.
73 de Björn,
SM0MDG
SE0X
sm2o:
Normally with a good internet connection and 35 ms ping i should guess 30 ms would be enough.
If it still messed up with "key delay" = 250 ms it means that some of the UDP packets are delayed more than 250 ms over the Internet. That not much to do about I'm afraid. I think it's only possible to set 250 ms, if you really have set 300 I guess you have mixed up "key delay" and "lf-delay".
73 de mike
sm0mdg:
Hi Mike,
It is indeed possible to set "key delay" to 300, although the info text says it ranges up to 250, guess I was too tired to take in instructions yesterday :)
I have been playing around with different settings and nothing really helps. I loose dots or dashes, or on some occasions get very long ones. I use Spectrum Lab to monitor the station's sidetone at the other end so I can check visually after changing settings.
Could this be the effect of connecting though WLAN on the radio side? I am using a UBNT Nano Station to connect the RRC-Radio to the DLink wireless router. Could this have an impact?
Any settings I could try in the WLAN link that might help?
73 de Björn
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