[time-nuts] Re: Symmetricom GPS Antenna/Downconverter?

[Bill Notfaded]

You need a special antenna to use the down converters.  I've grown to not
like them.  I've had 2 bad down converter base units get the dreaded red
"alarm" light.  My solution is get rid of the antennas and the base units.
Yeah this means replacing the antennas.  I've put together replacement
power supply for one base unit and it eventually failed after I ran a bunch
of new coax cable.  I've come to the conclusion it's time to ditch them.

Bill

On Wed, Dec 14, 2022, 4:06 AM Bill Notfaded <notfaded1 at gmail.com> wrote:

> You need a special antenna to use the down converters.  I've grown to not
> like them.  I've had 2 bad down converter base units get the dreaded red
> "alarm" light.  My solution is get rid of the antennas and the base units.
> Yeah this means replacing the antennas.  I've put together replacement
> power supply for one base unit and it eventually failed after I ran a bunch
> of new coax cable.  I've come to the conclusion it's time to ditch them.
>
> Bill
>
> On Tue, Dec 13, 2022, 10:07 PM AC0XU (Jim) via time-nuts <
> time-nuts at lists.febo.com> wrote:
>
>> I have a couple Symmetricom TimeSource 3500  systems that I would like to
>> test. Unfortunately, it requires an external GPS downconverter, either
>>
>> a) 090-72010-71 integrated antenna/downconverter (or 990-72050-96 kit)
>>
>> or
>>
>> b) Window/wall antenna and separate downconverter 090-72050-71 or -72.
>>
>> Does anyone know where to locate the 090-72010-71 antenna for a
>> reasonable price?
>>
>>
>> I see that there are a couple of window/wall downconverters on Ebay for
>> too-high prices so that is not attractive. Although, I am wondering whether
>> one of the window/wall downcoverters could be attached to a modern
>> antenna/LNA. Anyone know about that?
>>
>> Thanks!
>>
>> Jim
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>