re radiating aerials

Submitted: Monday, Apr 24, 2006 at 20:54
ThreadID: 33208 Views:1558 Replies:5 FollowUps:2
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my g p s has no external aerial so i relay on any signals through the front window GPSOZ sell re radiating aerials.RA45for $139 00 are they any good .my gps is a megallen 320 hard wired in and conected to my HP 4700 thanks mal
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Reply By: Bonz (Vic) - Monday, Apr 24, 2006 at 21:03

Monday, Apr 24, 2006 at 21:03
ARe you having a problem with signals, my Garmin 60CS is thru the window too and I only have a problem in treed areas and sometimes in the city, when initialising, other than that it works a treat. does work better with the aerial tho.
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AnswerID: 168776

Reply By: Member - David (WA) - Monday, Apr 24, 2006 at 22:42

Monday, Apr 24, 2006 at 22:42
I have a re radiating antenna and it does improve the signal when in use. I have a eTrex mounted on the dash and only use the external antenna when I need to. To-day that hasn't been many times.
If your GPS is mounted away from the windscreen, say down on your console, then the units built in antenna may not be enough.
I would take Bonz's advice and check out your signal strength before you buy one.
By the way, you can get one from the ExplorOz shop for less that $70.

AnswerID: 168803

Follow Up By: Member - Mal B - Tuesday, Apr 25, 2006 at 19:44

Tuesday, Apr 25, 2006 at 19:44
thanks david how and where did you mount it . how did you wire it ie through the firewall any help please ( my rig 80series turbo diesel)
FollowupID: 424312

Follow Up By: Member - David (WA) - Tuesday, Apr 25, 2006 at 20:50

Tuesday, Apr 25, 2006 at 20:50
I have an 80 series 96 4.2l diesel, no turbo...buggar!

My unit is the AR10 which I purchased thru this site. See the accessories section of the GPS item in the Shop.
The AR10 is powered by a cig lighter plug. The external antenna I mounted on the snorkle and ran the cable in thru the door and then across the dash under a dash mat.
The re radiating antenna bit I located in the passenger side sunvisor where the hinge goes into the visor. The cable I ran up the door trim. I chose this spot because I needed to get the antenna away from the GPS which was mounted on the windscreen by suction mount. I found the power of the re radiating antenna signal was wiping out the signal the GPS was receiving thru its own antenna with the signal strength reduced to nearly zero as indicated on the GPS screen. When I moved the re radiating antenna away, to say 1 metre, I found the signal to the GPS improved considerably. Finding a spot in the car was the next problem, eventually settling on the sunvisor location.

I hope this helps.
FollowupID: 424326

Reply By: Mad Dog (Australia) - Monday, Apr 24, 2006 at 22:59

Monday, Apr 24, 2006 at 22:59
I have a Holux re-radiating, it makes a huge difference to the received signal strength. I used to have dropouts under the bush canopy but the Holux put an end to that. I have confidence the one in the shop would be equally effective.
AnswerID: 168805

Reply By: craig - Tuesday, Apr 25, 2006 at 10:11

Tuesday, Apr 25, 2006 at 10:11
I use one with my etrex vista and its great. I have a heated windscreen and the small metal wires in the screen make my gps signal next to useless so I had no choice but use one. It has been faultless since. I got mine in the UK for about £30.
AnswerID: 168861

Reply By: Member - Mal B - Tuesday, Apr 25, 2006 at 19:33

Tuesday, Apr 25, 2006 at 19:33
thanks guys my signal is ok in the clear but trying to improve it mal
AnswerID: 168953

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