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View Full Version : Any work arounds for pairing = Navman + (Phone + Land Rover)?



Lotz-A-Landies
28th May 2012, 03:17 PM
I have a D4 which is paired to my android. Also have an aftermarket Navman which I'm assuming uses a Bluetooth connection to the phone to get traffic events.

The problem is that you can only use one connection to the phone at one time. The result is that you don't get the traffic warnings.

Anyone resolved this issue?

Ferret
28th May 2012, 03:51 PM
I don't think any Navman uses bluetooth to get traffic updates, at least mine does not. Traffic updates come in via FM transmissions. This means to get the traffic updates you need the charging cable connected to the ciggy lighter. The cable acts as an aerial for the Navman to receive the transmitted traffic reports.

That's how I think it works.

Lotz-A-Landies
28th May 2012, 04:10 PM
Thanks Ferret

I assumed the traffic allerts came from the phone, as I only received them after pairing my previous phone with Nav(wo)Man (the Bitch in the Box), however this may have just been coincidental with the roll-out of the FM transmissions. My assumptions came to the fore when a fortnight ago, the B-i-t-B sent me up a dirt road which is closed by a landslide long enough for the shire council to erect a special road sign to the fact (not just a road closed sign).

Will have to investigate.

mikehzz
29th May 2012, 07:04 AM
Q: How are traffic conditions delivered to my GPS device or cell phone?

A: Data can be sent to your cell phone or personal navigation device in one of four ways: Radio Data System–Traffic Message Channel (RDS-TMC), General Packet Radio Service (GPRS), satellite radio, or MSN Direct.

Clear Channel’s RDS-TMC network is the largest in the United States, and this FM sideband technology is the most popular traffic data delivery method. Information is sent from nearby FM towers.

MSN Direct compresses and decompresses data over FM sidebands. Its feeds also include such information as weather, movie times, and gas prices. This technology is available in select personal navigation devices from Alpine, Avis, Garmin, and Pioneer.

XM/Sirius satellite radio traffic services are used primarily in vehicle-embedded GPS systems and can be found in about 700,000 vehicles nationwide. But GPRS-connected devices allow for the best experience, since they are capable of uploading and downloading personalized data. Inrix powers the traffic data for AT&T and Sprint devices, while Navteq delivers the data to compatible Verizon Wireless phones. Traffic info is sent via nearby cellular towers.

This applies to the US. Not sure which options are used here. I reckon Ferret is correct.