AnsweredAssumed Answered

AW: vrf GPS testing

Question asked by VRFuser on Jan 25, 2008
It is not only one signal which is needed, you have to get 3 signals minimum. Currently there are receivers on the market which do have up to 12 channels....
If you want to use a cheap solution, you can use an outside antenna ( right hand circular polarised antenna - use the good ones which are big and flat, not the small ones currently used in PDAs) -
put in an variable antennuator and monitor the signals at different attenuations.
 
The problem with this method is that you allways do have different signal because the satellites are moving. This may be eliminated in some kind by the use of this attenuator .
 
But this is the cheapest method.
 
on the other hand you can use a test set which do simulate these different receiving situations....then do have a look for R%S - and i do think that there is even a test set with VEE control in use at several car manufactorers.
But do not believe that this is cheap....
 
wasnt there an application report from Agilent about that some time ago ? 
 
detlef 

  _____  

Von: Charles.Stewart@vertu.com [mailto:Charles.Stewart@vertu.com]
Gesendet: Freitag, 25. Januar 2008 10:37
An: Baranski, Detlef; vrf@agilent.com
Betreff: RE: [vrf] GPS testing


 
Hi Detlef and VRF in general
 
Good point.
 
We will be testing a receiver. The idea is to test for positional accuracy in a lab. Maybe how strong the received signal is.
 
 
Chuck

  _____  

From: ext Baranski, Detlef [mailto:Detlef.Baranski@pilkington.de]
Sent: Fri 25/01/2008 08:53
To: VRF
Subject: AW: [vrf] GPS testing


My question is:
Do you want to test GPS antennae, or do you want to check a GPS receiver for functionality, or do you want to use a system under real envoironment conditions, or do you need just a receiver unit for getting the current signal status ?
Starting with the VEE program sent before, you may adapt all these things to your needs, you even may track your routes if you make driving tests.
We made in lot of tests in these areas in the ealy 1996s with antennae under glass in the car. and we do have some really nice programs not only programmed in vee, but controlled via VEE...
So if you may say what you really need, i may help perhpas,
detlef

  _____  

Von: Charles.Stewart@vertu.com [mailto:Charles.Stewart@vertu.com]
Gesendet: Donnerstag, 24. Januar 2008 17:38
An: VRF
Betreff: [vrf] GPS testing



Hello all.
I'm looking for a concept. We're trying to test a GPS unit using Vee.
Can anybody point me in the right direction?
What (inexpensive) test system are available?
Are Vee drivers available for them or will I need to do my own?
Thanks in advance
CHUCK STEWART
SENIOR SOFTWARE  ENG.

Vertu
Beacon Hill Road
Church Crookham
Hampshire
GU52 8DY
United Kingdom

charles.stewart@vertu.com

M +44 7796276949
T +44 1252 611235
F +44 1252 611300


Business Identity Code 0112038-9



---
You are currently subscribed to vrf as: Detlef.Baranski@pilkington.de
To subscribe please send an email to: "vrf-request@lists.it.agilent.com" with the word subscribe in the message body.
To unsubscribe send a blank email to "leave-vrf@it.lists.it.agilent.com".
To send messages to this mailing list, email "vrf@agilent.com".
If you need help with the mailing list send a message to
"owner-vrf@it.lists.it.agilent.com".
Search the "unofficial vrf archive" at "http://www.vrfarchive.com/vrf_archive".
Search the Agilent vrf archive at "http://vee.engineering.agilent.com".
Der Inhalt dieser E-Mail (inkl. aller Anlagen) ist vertraulich und ausschließlich für den Adressaten bestimmt. Jede Art der Verbreitung, Nutzung oder Vervielfältigung ist untersagt. Sollten Sie diese E-Mail irrtümlich erhalten haben, informieren Sie bitte sofort den Absender und löschen die E-Mail.

Unternehmensangaben der Gesellschaften mit Sitz in Deutschland:

Pilkington Holding GmbH, Haydnstraße 19, 45884 Gelsenkirchen
Sitz: Gelsenkirchen, Amtsgericht Gelsenkirchen HRB 8997
Geschäftsführung: Jochen Settelmayer (Vorsitz), Dr. Clemens Miller, Thomas Kretschmann, Robert Hales
Vorsitzender des Aufsichtsrates: Dr. Axel Wiesener

Pilkington Deutschland AG, Haydnstraße 19, 45884 Gelsenkirchen
Sitz: Gelsenkirchen, Amtsgericht Gelsenkirchen HRB 2707
Vorstand: Dr. Clemens Miller, Jochen Settelmayer
Vorsitzender des Aufsichtsrates: Dr. Axel Wiesener

Pilkington Automotive Deutschland GmbH, Otto-Seeling-Straße 7, 58455 Witten
Sitz: Witten, Amtsgericht Bochum HRB 8443
Geschäftsführung: Thomas Kretschmann
Vorsitzender des Aufsichtsrates: Jochen Settelmayer

Bauglasindustrie GmbH, Hüttenstraße 33, 66839 Schmelz / Saar
Sitz: Schmelz / Saar, Amtsgericht Saarbrücken HRB 52020
Geschäftsführung: Manfred Ebbers


---
You are currently subscribed to vrf as: Charles.Stewart@vertu.com
To subscribe please send an email to: "vrf-request@lists.it.agilent.com" with the word subscribe in the message body.
To unsubscribe send a blank email to "leave-vrf@it.lists.it.agilent.com".
To send messages to this mailing list, email "vrf@agilent.com".
If you need help with the mailing list send a message to
"owner-vrf@it.lists.it.agilent.com".
Search the "unofficial vrf archive" at "http://www.vrfarchive.com/vrf_archive".
Search the Agilent vrf archive at "http://vee.engineering.agilent.com".

Der Inhalt dieser E-Mail (inkl. aller Anlagen) ist vertraulich und ausschließlich für den Adressaten bestimmt. Jede Art der Verbreitung, Nutzung oder Vervielfältigung ist untersagt. Sollten Sie diese E-Mail irrtümlich erhalten haben, informieren Sie bitte sofort den Absender und löschen die E-Mail.

Unternehmensangaben der Gesellschaften mit Sitz in Deutschland:

Pilkington Holding GmbH, Haydnstraße 19, 45884 Gelsenkirchen
Sitz: Gelsenkirchen, Amtsgericht Gelsenkirchen HRB 8997
Geschäftsführung: Jochen Settelmayer (Vorsitz), Dr. Clemens Miller, Thomas Kretschmann, Robert Hales
Vorsitzender des Aufsichtsrates: Dr. Axel Wiesener

Pilkington Deutschland AG, Haydnstraße 19, 45884 Gelsenkirchen
Sitz: Gelsenkirchen, Amtsgericht Gelsenkirchen HRB 2707
Vorstand: Dr. Clemens Miller, Jochen Settelmayer
Vorsitzender des Aufsichtsrates: Dr. Axel Wiesener

Pilkington Automotive Deutschland GmbH, Otto-Seeling-Straße 7, 58455 Witten
Sitz: Witten, Amtsgericht Bochum HRB 8443
Geschäftsführung: Thomas Kretschmann
Vorsitzender des Aufsichtsrates: Jochen Settelmayer

Bauglasindustrie GmbH, Hüttenstraße 33, 66839 Schmelz / Saar
Sitz: Schmelz / Saar, Amtsgericht Saarbrücken HRB 52020
Geschäftsführung: Manfred Ebbers


---
You are currently subscribed to vrf as: ming_meng@agilent.com
To subscribe please send an email to: "vrf-request@lists.it.agilent.com" with the word subscribe in the message body.
To unsubscribe send a blank email to "leave-vrf@it.lists.it.agilent.com".
To send messages to this mailing list, email "vrf@agilent.com".
If you need help with the mailing list send a message to
"owner-vrf@it.lists.it.agilent.com".
Search the "unofficial vrf archive" at "http://www.vrfarchive.com/vrf_archive".
Search the Agilent vrf archive at "http://vee.engineering.agilent.com".  

Outcomes