[amsat-bb] Geostationary & HEO Satellites

[Patrick STODDARD (WD9EWK/VA7EWK)]

Hi!

We can experience the delays you mentioned, even with LEO
satellites today. Use an SDR receiver on the downlink.
Unless the computer is very fast, there is a lag in hearing
the downlink. It was annoying at first, but now I don't
worry about listening for my voice. I can see signals on
the waterfall in the SDR software, and as long as I can
hear my voice coming through... I'm fine.

73!





Patrick WD9EWK/VA7EWK
http://www.wd9ewk.net/
Twitter: @WD9EWK or http://twitter.com/WD9EWK


On Fri, Feb 8, 2019 at 7:44 PM jim at k6ccc.org <jim at k6ccc.org> wrote:

> Paul Andrews said:
> > GEOSATs have another interesting characteristic.   600 ms round trip
> > delay due to the longer distance.
>
> 600 mSec is almost a triple hop, so not that long...
>
> For those of us that operated on AO-40 during it's unfortunately short
> life, when it was at or near apogee, it was well beyond the Geo belt, and
> that was entertaining.  Of course most people on linear birds operate full
> duplex and it took a little to get used to hearing yourself with such along
> delay...
>
> 73
> -----
> Jim Walls - K6CCC
> jim at k6ccc.org
>
>