[time-nuts] GPS Interference Question

jmfranke jmfranke at cox.net
Fri Sep 30 15:34:07 UTC 2011

There are several problems. First energy from the offending signal leaking 
into the protected GPS band and second the GPS receivers having a bandwidth 
greater than the protected GPS band in order to reduce phase errors, acquire 
GPS signal energy present outside the protected GPS band to have a higher 
bandwidth signal, and to reduce production costs. The GPS industry is part 
of the problem.

I firmly believe the protected band needs to be increased. I will always 
favor better time and frequency dissemination over social networking.

John  WA4WDL

From: "Bob Bownes" <bownes at gmail.com>
Sent: Friday, September 30, 2011 11:11 AM
To: "Discussion of precise time and frequency measurement" 
<time-nuts at febo.com>
Subject: Re: [time-nuts] GPS Interference Question

> Exactly. The narrower the filter, the more it will cost. In general.
> On Fri, Sep 30, 2011 at 11:10 AM, Tom Holmes <tholmes at woh.rr.com> wrote:
>> Sticking with the intent to keep this non-political, what good is a 
>> filter
>> if the offending signal is within the necessary passband?
>> Tom Holmes, N8ZM
>> Tipp City, OH
>> EM79
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