PSN-L Email List Message

Subject: Re: Extending coax on Motorola Oncore GPS antenna
From: Stephen & Kathy skmort@............
Date: Mon, 22 May 2006 18:49:24 -0700

Hi,,  I simply clipped the antenna cable close to the antenna and 
soldered RG58U (what ever the 50 ohm number is), cable to it!   I used a 
short piece of the RG58 interior insulation and sloped it to match the 
174 to cover the solder connection, then folded the outside conductor, 
from each cable, over it, taped it, and waterproofed it!!  About 10 feet 
went up the pole where the antenna sits,, about 10 feet went through the 
attic with about a foot down from the ceiling where it is connected to 
the GPS, (GPS is still indoors), then about 30 feet of RS232 to the 
computer!  I use telephone cable and connectors for the GPS power and 
one second data!  I get strong satellite signals, even with the cable 
diameter mismatch!

Just my two cents worth of experience!!

  PSN Station #55
  near Pilot Hill Ca. USA
  38.828N  120.979W

apsn wrote:
> OR, has anyone moved their Motorola Oncore GPS engine and antenna to a 
> remote spot (waterproofed, of course) and used a long run of RS-232 
> cable plus power back to the digitizer board?  This is similar to what 
> Motorola or Synergy Systems sells in their Timing2000 product.
>> Date: Mon, 22 May 2006 11:16:49 -0800
>> To: psn-l@..............
>> From: apsn 
>> Subject: Extending coax on Motorola Oncore GPS antenna
>> I need to move my GPS antenna (Oncore GPS for WinSDR timing) to a 
>> location such that I need to add 50' of coax.  What do you suggest 
>> for coax and where can I find adapters for that tiny right-angle MMCX 
>> connector?
>> Thanks,
>> Bob Hammond
>> Public Seismic Network - Alaska
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