[Elecraft] K3 remote over satellite internet?

[Mitch Wolfson, DJØQN / K7DX]

Bill,

There are *no *good news stories on using RemoteRig over satellite. A 
couple of people have been on the RemoteRig Forum where things like this 
are discussed at http://www.remoterig.com/forum/index.php and had tried 
in vain to get it to work.

As Joe wrote, the latency is too high to make it work. To put it more in 
numbers, the speed of light is (only) 300,000 km/s and the 
geosynchronous satellites are in orbit at 40,000 km. Therefore, for the 
double round trip that is necessary for the packets, you have a trip of 
160,000 km. This gives you a latency of 533 ms. Then you need to add on 
the normal ground latency that comes on top of this in the 200 ms range, 
giving you a delay of about three-quarters of one second! Things get 
difficult for SSB once you hit about 200 ms, so this just will not work 
due to physics.

73,
Mitch DJ0QN / K7DX

Mitch Wolfson DJØQN / K7DX
10285 Boca Cir, Naples, FL 34109
Skype: mitchwo
USA: Home:+1-239-221-9600 - Mobile:+1-424-288-9171
Germany: Home:+49 89 32152700 - Mobile:+49 172 8374436

On 22.12.2016 17:56, Bill OMara via Elecraft wrote:
> Jim and others,
>
> I agree with everything that everyone has said..... That's why I was asking
> about a good news story?  Has anyone tried it?
> Any real first hand reports?
>
> The specs don't always tell the truth, but most of the time they do!
>
> 73 Bill  W4RM
>
> -----Original Message-----
> From: Elecraft [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Jim
> Brown
> Sent: Thursday, December 22, 2016 5:43 PM
> To: elecraft at mailman.qth.net
> Subject: Re: [Elecraft] K3 remote over satellite internet?
>
> On Thu,12/22/2016 1:37 PM, Bill OMara via Elecraft wrote:
>> Does anyone have any good new story's in running a k3 remoterig set-up
>> over a satellite internet system? Hughes Net, Exede or others
> There are at least two issues. The most obvious is latency -- how much "turn
> around" time are you able to tolerate? You've got to make the round trip up
> and back to the bird, and that's in addition to digital encoding latency.
> The second issue is bandwidth. I've heard that satellite systems aren't
> exactly speedy. :)
>
> 73, Jim K9YC
>
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