[time-nuts] Austron GPS antennas

Rob Kimberley rk at timing-consultants.com
Fri Aug 12 14:24:40 UTC 2011


Just a thought, did these units work after the GPS Week rollover. Seem to
think they were all pre this date.

Rob Kimberley

-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of Tom Van Baak
Sent: 12 August 2011 2:53 PM
To: Discussion of precise time and frequency measurement
Cc: Roland Myers
Subject: [time-nuts] Austron GPS antennas

Hi group.

I've been contacted by a helpful person who is willing to undertake a group
buy of Austron GPS antennas. Here is what he said:

   "If I can get enough interest, there's a real possibility that
   better-than-original Downconverter Antenna Units for Austron
   GPS can be manufactured for me.

   Applies to all known Austron GPS Receivers such as 2200,
   2200A, 2201, 2201A and variants.

   These units all send 15 volts and 10Mhz to the antenna unit
   which multiplies this and uses it to derive a local oscillator
   signal of 1500MHz in the antenna unit itself.

   1575.42MHz - 1500 MHz = 75.42MHz which is sent back
    down the coax from the antenna unit to the gps rx.

   (All these receivers are useless without the downconverter
   antenna - and there have to be lots of 'em in the hands of
   time nuts)"

If you have questions or are interested in participating, please contact
Roland directly at timebeacon at gmail.com

Thanks,
/tvb


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