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| IT, AV and other Tech All computing, home cinema and technology that isnt car related |
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#51
27th January 2016, 10:59 AM
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Aerial length for full wavelength dipole is between 177mm and 235mm for the GPS L1 and L2 signals which would be easy to fit behind the dash. Next job then is to see what the aerial feeder cable and connections are and look for a splitter.
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2002 D2 S8 – Ming Blue, Valcona leather, Vavona wood insert, solar sunroof (to be fitted), Heated rear seats, extended leather pack, 18” Avus, ski hatch, Bose, auto dim rear view mirror, rear blind. 
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#52
27th January 2016, 11:01 AM
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Just seen your latest post Andrew. mmmmmm
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2002 D2 S8 – Ming Blue, Valcona leather, Vavona wood insert, solar sunroof (to be fitted), Heated rear seats, extended leather pack, 18” Avus, ski hatch, Bose, auto dim rear view mirror, rear blind.
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#53
27th January 2016, 11:11 AM
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I know that TV satellite receivers retransmit down the coax with the signal modulated on a totally different frequency to that received to enable the use of coax. Presumably a powered GPS aerial, again on a thin coax, will be engineered similarly though I can find no reference.
(The satellite frequencies would require a microwave waveguide to propagate properly.) I guess an "all-in-one" unit can bypass that step so hooking in a remote powered aerial is quite probably impossible.
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2003 D2 FL S8. Irish Green Pearl/Beige. Solar sunroof, auto-dim mirrors, electric rear seat functions, ski hatch retrofit; extended leather. Aftermarket DVB-T, reversing camera and full XCarlink (Bluetooth etc.). 2016 Volvo V40 T5 Cross Country (4WD) with ALL the toys including adaptive cruise etc. etc. Osmium Grey with Blonde/Charcoal leather interior. Polestar performance "optimisation".  (A much rarer model than a D2 S8 by the way!) Oh, and a brand new engine at just under 30,000 miles on the factory one!  Finally: gone, but not forgotten..... 1998 D2 PF S8. AgateGrey/Platinum. Every option (I think) except electric rear seats, tiptronic steering wheel, ski hatch, towbar & dimming door mirrors. e.g. Cruise control, NavPlus/TV, Bose, GSM, Xenons, Solar roof, Parking sensors, Alcantara/leather everywhere of course.  (internal dimming mirror added later)1998 (very early) Ford Focus 1.8 Zetec; ABS/TCS, Heated screen/mirrors, Aircon, Auto-dim mirror, Leather, Trip computer, Cruise control, OEM Ford SatNav with CD changer. And before that a lot of Rover 800s, a few oddities, a lovely Triumph Dolomite 1850HL with Overdrive and way back in my schooldays an Austin Seven aka Mini 850! 
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#54
27th January 2016, 02:51 PM
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Currently 8less 2011 Q7 S Line 3.0TDI, 2016 Tesla Model S 90D 8 history: 2006 A8 Sport 4.2TDI quattro SOLD, 1997 S8, reached end of life with gearbox failure
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#55
27th January 2016, 02:58 PM
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Thanks for that Ainars. I was/am a bit sceptical as it still relies on picking up the signal INSIDE the car which seems to be the issue with the metallised coating on the heated front screen. But I then noted in the product reviews that someone states that in their car with a "metal oxide coated screen" which previously inhibited signal reception, this device solved the issue. Not cheap at nearly £40 but worth investigating.
EDit: Just seen that although some people mounted the receiver aerial inside on the dash others did mount it as I now think it should be receiver aerial on the outside of the car.
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2002 D2 S8 – Ming Blue, Valcona leather, Vavona wood insert, solar sunroof (to be fitted), Heated rear seats, extended leather pack, 18” Avus, ski hatch, Bose, auto dim rear view mirror, rear blind. Last edited by David's8; 27th January 2016 at 03:02 PM.
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#56
27th January 2016, 04:58 PM
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I think, if I read it correctly, that unit could also take a feed from the OEM antenna if you want to access its wiring at a convenient place.
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2003 D2 FL S8. Irish Green Pearl/Beige. Solar sunroof, auto-dim mirrors, electric rear seat functions, ski hatch retrofit; extended leather. Aftermarket DVB-T, reversing camera and full XCarlink (Bluetooth etc.). 2016 Volvo V40 T5 Cross Country (4WD) with ALL the toys including adaptive cruise etc. etc. Osmium Grey with Blonde/Charcoal leather interior. Polestar performance "optimisation". (A much rarer model than a D2 S8 by the way!) Oh, and a brand new engine at just under 30,000 miles on the factory one! Finally: gone, but not forgotten..... 1998 D2 PF S8. AgateGrey/Platinum. Every option (I think) except electric rear seats, tiptronic steering wheel, ski hatch, towbar & dimming door mirrors. e.g. Cruise control, NavPlus/TV, Bose, GSM, Xenons, Solar roof, Parking sensors, Alcantara/leather everywhere of course. (internal dimming mirror added later)1998 (very early) Ford Focus 1.8 Zetec; ABS/TCS, Heated screen/mirrors, Aircon, Auto-dim mirror, Leather, Trip computer, Cruise control, OEM Ford SatNav with CD changer. And before that a lot of Rover 800s, a few oddities, a lovely Triumph Dolomite 1850HL with Overdrive and way back in my schooldays an Austin Seven aka Mini 850!
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#57
27th January 2016, 06:01 PM
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Quote:
http://www.ebid.net/za/for-sale/ipho...0-74545517.htm
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2002 D2 S8 – Ming Blue, Valcona leather, Vavona wood insert, solar sunroof (to be fitted), Heated rear seats, extended leather pack, 18” Avus, ski hatch, Bose, auto dim rear view mirror, rear blind.
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#58
27th January 2016, 06:27 PM
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I thought this one looked more interesting, also cheaper and more flexible for use indoors as well.
Depending on power requirements you might be able to totally hide it in a car and use the OEM external aerial. http://www.amazon.co.uk/GPS-Antenna-.../dp/B00LM2GLQM These devices do suggest that the satellite signal is transmitted (albeit amplified) down the coax without remodulation, unlike a satellite TV broadcast.
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2003 D2 FL S8. Irish Green Pearl/Beige. Solar sunroof, auto-dim mirrors, electric rear seat functions, ski hatch retrofit; extended leather. Aftermarket DVB-T, reversing camera and full XCarlink (Bluetooth etc.). 2016 Volvo V40 T5 Cross Country (4WD) with ALL the toys including adaptive cruise etc. etc. Osmium Grey with Blonde/Charcoal leather interior. Polestar performance "optimisation". (A much rarer model than a D2 S8 by the way!) Oh, and a brand new engine at just under 30,000 miles on the factory one! Finally: gone, but not forgotten..... 1998 D2 PF S8. AgateGrey/Platinum. Every option (I think) except electric rear seats, tiptronic steering wheel, ski hatch, towbar & dimming door mirrors. e.g. Cruise control, NavPlus/TV, Bose, GSM, Xenons, Solar roof, Parking sensors, Alcantara/leather everywhere of course. (internal dimming mirror added later)1998 (very early) Ford Focus 1.8 Zetec; ABS/TCS, Heated screen/mirrors, Aircon, Auto-dim mirror, Leather, Trip computer, Cruise control, OEM Ford SatNav with CD changer. And before that a lot of Rover 800s, a few oddities, a lovely Triumph Dolomite 1850HL with Overdrive and way back in my schooldays an Austin Seven aka Mini 850!
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#59
28th January 2016, 04:26 PM
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Apologies David for not getting back to you, but haven't been in the car since last Saturday. Had a few chores to do today, so took the opportunity of repositioning the dashcam.
The red box indicates where it was originally located, and worked fine from. The only issue is the tint making night time footage quite dark. The above image is from GPS viewer software, with a few other windows open as well. What they show are as follows: 1. Folder view of GPS data. Files are created 2. One of the log files opened, which shows zero contents 3. The speed trace which is empty 4. A popup window when you hover over a spot on the timeline 5. Google map of the area As you can see from numbers 2 to 4, there is no GPS data recorded at all, with the dashcam in the new lower position. I also let the car run for a minute or so before initially setting off, so that it could get a GPS lock, but no luck. That definitely confirms that the heater matrix in the windscreen does not go up to the tinted area. If you do opt for one of these additional GPS pucks, it looks like positioning it in the tinted area should give you a GPS lock. Do you know if Jim even got his dashcam fitted, as it was the same model as mine, although can't remember if he went for the GPS one or not.
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2001 A8 D2 FL 3.7 Q - LPG Conversion, Engine: AKC, Gearbox:FBB, Colour:LY5X Aqua Blue pearl effect, Interior:WJ light beige/dark beige valcona leather with burr walnut inserts My DIY jobs - Replaced alarm horn, Replaced Coolant Temp sensor, Updated RNS-D firmware, Installed Reversing Camera and Digital TV, Dashcam Installation, Retrofitted Rear Blinds, Auto-Dimming Rear View Mirror, Chrome Boot Struts Sold!  2008 S8 D3 5.2 V10 - Engine: BSM, Gearbox:KLW, Colour:LY7F Suzuka Grey Pearl Effect, Interior:Black/Black with Silver/Black valcona leather with carbon atlas inserts, Bang & Olufsen, Heated windscreen, Soft-close doors, TV, DAB, AMI, Quad Zone, Auto Boot, Auto dim Mirrors, Keyless entry, PDC with rearview camera, AFS II HeadlightsMy DIY jobs - Fan Jet Windscreen Washers, Retrofitted Electric Side Blinds
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#60
28th January 2016, 06:01 PM
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This is what I meant: http://www.ebay.co.uk/itm/GPS-Antenn...YAAOSwvUlWqhyC
I guess that might contravene the Wireless Telegraphy Act, but since you're re-transmitting in to a faraday cage who is ever going to notice? The signals can't get in from the satellite, so they're not going to get out again either 
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