[OZAPRS] Low/no GPS signals (Nik Presser)

Tony Hunt wavetel at internode.on.net
Wed Jan 9 15:41:41 EST 2013

Nik .. Have a look for interference sources on the GPS .. It sounds odd I 
know but its happened to me. A few months ago I bought a cheap Ebay 
Bluetooth Handsfree kit that uses a small transmitter on the FM broadcast 
band and plugs into the cigarette lighter socket. I found that running the 
thing at around 88Mhz caused it to go spurious so much that it actually 
wiped out any GPS receiver within 15 feet.

Seriously bad stuff. It had me swapping GPS units franticly for a while to 
no avail. When I use that Bluetooth kit its usually in a loaned car and I 
remember to run it well above 88MHZ

Tony Hunt VK5AH

----- Original Message ----- > Date: Wed, 9 Jan 2013 08:00:13 +1100
> From: "Nik Presser" <nikp007 at bigpond.com>
> To: "Australian APRS Users" <ozaprs at aprs.net.au>
> Subject: [OZAPRS] Low/no GPS signals
> Message-ID: <AEADF52DAA1447E6B061227C054266B6 at wg.dir.telstra.com>
> Content-Type: text/plain; charset="iso-8859-1"
> G'day all on the APRS list,
> Is anyone having trouble hearing a GPS satellite this morning?? I've got 
> two GPS receivers (one with active ext antenna) and I haven't heard a 
> thing this morning, since leaving Anakie to Geelong this morning, at 
> approx 7am to thus far. One of them, a Garmin GPS60CS (with ext ant) had a 
> RX fail alarm on it when I jumped in this morning and despite multiple 
> resets of both systems, I still can't hear anything. I note too that the 
> APRS system was very quiet down our way this morning too. The sky was 
> overcast but no rain or heavy smoke.
> Anyone having the same issue?
> Cheers,
> Nik Presser
> Anakie

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