[time-nuts] GLONASS receiver

Bob Camp lists at rtty.us
Sun Aug 5 23:19:39 UTC 2012


The most likely jammer (broad band crud) is going to take out both systems at once…

The next most likely would be a trucker trying to jam the location stuff on his truck. I'm betting that they will be buying multi mode jammers soon…


On Aug 5, 2012, at 6:43 PM, Magnus Danielson <magnus at rubidium.dyndns.org> wrote:

> On 08/05/2012 11:36 PM, Miguel Gonçalves wrote:
>> Hi there!
>> I currently have 2 embedded machines connected to a Garmin 18 LVC and a Sure GPS board.
>> They are NTP servers for my company's LAN and I, at the moment, I get sub-ms accuracy over the LAN.
>> Everything is fine but I am a bit worried about the GPS reliability because GPS is ruled by the USA. Would a GPS disciplined oscillator solve any potential problems? A receiver for GLONASS, even though I did not find any at a reasonable price, would be better?
> The main way you can expect to loose GPS signal by intent is by jamming. If you jam GPS, you better jam GLONASS at the same time.
> Cheers,
> Magnus
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