Home Forums Articles How To's FAQ Register
Go Back   Xoutpost.com > Electronics > Navigation System
Arnott
User Name
Password
Member List Premier Membership Search Today's Posts Mark Forums Read

Xoutpost server transfer and maintenance is occurring....
Xoutpost is currently undergoing a planned server migration.... stay tuned for new developments.... sincerely, the management


Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 01-22-2007, 12:28 PM
Member
 
Join Date: Feb 2006
Location: Redwood City, CA
Posts: 25
jkarp is on a distinguished road
nav "hidden" menu says "antenna open"

does anyone know what it means when you get a message in the hidden menu of the nav that says "antenna open"? I'm assuming it means that the antenna connection is not made. does that sound right?

I'm having a problem building an almanac and getting a GPS signal after upgrading to an MKIV from my old MKII. I've let the var sit out in the open, and i can see 8 satellites, but the GPS will not build the almanac.

Should i just try replacing the antenna cable and see what happens?

thanks... josh
Reply With Quote

Sponsored Links

  #2  
Old 01-22-2007, 05:56 PM
Terry Kennedy's Avatar
Member
 
Join Date: Mar 2006
Location: New York
Posts: 85
Terry Kennedy is on a distinguished road
Quote:
Originally Posted by jkarp
does anyone know what it means when you get a message in the hidden menu of the nav that says "antenna open"? I'm assuming it means that the antenna connection is not made. does that sound right?

I'm having a problem building an almanac and getting a GPS signal after upgrading to an MKIV from my old MKII. I've let the var sit out in the open, and i can see 8 satellites, but the GPS will not build the almanac.
Where did you hook up the antenna cable? The MK II has a separate GPS receiver module, while the MK IV has it built into the NAV computer.

If you mean the "Visible satellites: 8" message, you'll always get that. It doesn't actually mean you can see 8 satellites. If you have acquired the almanac, it means the number of satellites above the horizon (limited to 8 as this is an 8-channel GPS).
Reply With Quote
  #3  
Old 01-22-2007, 11:14 PM
Member
 
Join Date: Feb 2006
Location: Redwood City, CA
Posts: 25
jkarp is on a distinguished road
thanks for the reply. so where should the antenna go from/to?

...josh
Reply With Quote
  #4  
Old 01-27-2007, 06:15 AM
Member
 
Join Date: Dec 2006
Location: Switzerland
Posts: 2,575
KiwiJochen is on a distinguished road
Unplug the thin coax cable from the Trimble GSP receiver unit, and connect it to the small coax socket on the back of the MkIV nav unit.

Also, you should totally unplug the Trimble GPS receiver as it is no longer required - the GPS receiver is now built in to the nav unit.

If I were you, I'd remove the Trimble GPS receiver - it has no function any more - and sell it.
Reply With Quote
  #5  
Old 01-30-2007, 11:28 PM
Member
 
Join Date: Feb 2006
Location: Redwood City, CA
Posts: 25
jkarp is on a distinguished road
thanks for the replies. i'm assuming the thin coax i should be plugging into my MKIV is the one wrapped together with the old antenna that went to my trimble unit, correct?

when i plug that in, i get "recerr" on my hidden menu display. if i want to check the other end of that antenna, where does it run to? All I can see is that i runs towards the front of the car into a rubber grommet and i can't get past that. is there anything else i can check?

thanks... josh

Last edited by jkarp; 01-31-2007 at 12:03 AM.
Reply With Quote
  #6  
Old 01-31-2007, 12:55 AM
Member
 
Join Date: Dec 2006
Location: Switzerland
Posts: 2,575
KiwiJochen is on a distinguished road
Correct, the GPS antenna cable used to plugged into the Trimble GPS receiver. As the GPS receiver is not internal inside the nav computer, you disconnect the GPS antenna from the Trimble receiver, and you connect it to the nav computer.

The GPS antenna is physically located on the rear parcel tray, beside the 3rd brake light, under the trim. Make sure you dont have a metallic tint on your rear window, or anything metallic (like an umbrella) on your rear parcel tray. Otherwise your reception can be disturbed.

NOTE: if your boot lid is open it can also obstruct the GPS reception. Close the boot (trunk) to ensure the antenna is not obstructed.

If your nav unit is freshly installed in your car, it will take up to 15 or 20min to acquire the satellites and download the current almanac.

Park your car outside, with an unobstructed view of the sky, with ign in posiiton 1. Wait. Or go into service mode and observe GPS satellite receive status and almanac reception. A new nav comp, or one obtained from another country, will take time to adjust it's GPS reception to your location. Be patient for 15min.

If in doubt, go into service mode and check reception of satellites there. You should see the S/N value for satellite reception >0 , more the better. 10 is good. 0 is no signal. It takes 2 satellites to get a 2D fix, 3 for 3D.

Jochen
Reply With Quote
  #7  
Old 01-31-2007, 03:23 AM
Member
 
Join Date: Feb 2006
Location: Redwood City, CA
Posts: 25
jkarp is on a distinguished road
thanks as always for the replies Jochen. Does it not matter that i get a "recerr" in my status menu?

...josh
Reply With Quote
  #8  
Old 01-31-2007, 04:37 AM
Member
 
Join Date: Dec 2006
Location: Switzerland
Posts: 2,575
KiwiJochen is on a distinguished road
recerr = Receive Error.
But are you receiving any satellite signals?
What S/N figures do you get for your 8 satellites?
Have you got an alamanc?
More info is required....
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On





All times are GMT -4. The time now is 07:43 PM.
vBulletin, Copyright 2019, Jelsoft Enterprises Ltd. SEO by vBSEO 3.6.0
2017 Xoutpost.com. All rights reserved. Xoutpost.com is a private enthusiast site not associated with BMW AG.
The BMW name, marks, M stripe logo, and Roundel logo as well as X3, X5 and X6 designations used in the pages of this Web Site are the property of BMW AG.
This web site is not sponsored or affiliated in any way with BMW AG or any of its subsidiaries.