Remote Rig

RRC 1258 Support in English => General discussion forum => Topic started by: py2xb on 2023-04-02, 14:33:21

Title: CW Truncated / Dropouts
Post by: py2xb on 2023-04-02, 14:33:21

Hello Guys, Hello Mike

I am having an issue when sending CW to the remote side. The CW is truncated. If it was before it was not easily noticeable. BTW I use TS480S with remote head at the Control Side.

The internet connection at the remote end is the same and it is good.  At the remote side all is wired, no WI-FI. I have no issue with the receiving audio at the Control side.  SSB transmission works fine as well. BTW I have tested CW sending with two ISPs at the control side and there is no difference.

I have increased the Key Delay to the maximum (250ms) at the Control RRC.  It improved the CW transmission but I still have dropouts or some hang-like effect as a longer dash.

Any ideas about what can be done parameter wise or what to investigate? Many thanks  Fred,  PY2XB

Title: Re: CW Truncated / Dropouts
Post by: sm2o on 2023-04-02, 19:26:30

Hi
If you have increased key delay to 250 ms and still have problem, it's nothing more you can do within the Remoterigs. The Internet connection is not good enough. Often it's better to have the same ISP in both ends if possible, then the data might not even pass out to Internet, just using their own backbone.

73 de mike

Title: Re: CW Truncated / Dropouts
Post by: py2xb on 2023-04-03, 16:47:56

Hi Mike > Thanks feedback. I thought I would receive such an answer !

My remote station is in a rural area. I have not too many choises of internet provider. The one I have uses dedicated radios for the last mile. The RTT from the control point is quite OK (35 ms or even less). The Jitter may be the issue ( above 30ms).
I am talking to the provider if they can trace the route and find something different, because I did not have this issue before.
One question: I have notice a sensible improvement with Key Delay = 250ms. It would not make sense to increase this limit  to 500ms for instance? Maybe half second delay would be too much, but I rather have a large delay than a bad CW.

Best Regards Fred

Title: Re: CW Truncated / Dropouts
Post by: oz1rh on 2023-08-29, 20:04:38

If it is not fixed yet you can use pingplotter.exe at www.pingplotter.com/download/ to check where the delay is.

73, Palle, OZ1RH - OZ5W contest site