[Scan-DC] National Park Service--163.3375 and 169.7750

[Lepine, Paul]

Jus my two cents....But I believe the 168.3000 freq is only used by Park 
Rangers (which are different than Park Police).  I also hear Great Falls 
sign on using this frequency in the morning,  as well as in the evening.

I hear Park Police on the 166.9500 when they are patrolling the canal above 
Great Falls...up to White's Ferry and Dickerson Aqueduct.  I have also heard 
Park Ranger units from Harpers Ferry on this frequency using it in Harp 
Ferry and Brunswick area.

Paul



----- Original Message ----- 
From: <johnson at cpcug.org>
To: "David Schoenberger" <davidschoenberger at gmail.com>
Cc: "ScanDC" <scan-dc at mailman.qth.net>
Sent: Sunday, April 20, 2008 6:35 PM
Subject: Re: [Scan-DC] National Park Service--163.3375 and 169.7750


> Dave -
>
> That may be the new NPS repeater system they are installing to increase
> coverage from Great Falls down into DC.
>
> Last year a ranger I was talking radio with at the GF Park (VA) told me
> they would be installing another repeater at the "location of the school"
> and pointed downstream.  I did not press him for more details but assumed
> it may be at the Madiera School approx one-half of the way back to the
> Beltway.  I have not stopped at the school to see if there was a new tower
> on the grounds but as it is at a high point, that location would be a
> candidate for the repeater.
>
> I would assume as they would be upgrading their coverage, they may also
> may be upgrading the modes, etc.
>
> Might be related, might not.  Any input is helpful.
>
> On a side note, as you drive into the park from 193, take a look to the
> back right as you pass the first driveway on the right, approx 100 yards
> in.  At the hilltop is a tree cleverly disguised as a cell tower.
>
> Ralph Johnson
>
> Anyone have insight as to what's going on with the NPS and frequencies
>> 163.3375 and 169.7750?  I monitored a brief P25 conversation on these
>> two freqs from Gravelly Point.  One seemed to be the input and the
>> other the output of the same channel, or maybe they were both repeater
>> outputs in a simulcast setup.  One unit was calling "Great Falls 800,"
>> so these frequencies appear to be used for C&O Canal.
>>
>> By the way, the NAC for both frequencies is 4C5, which seems to be the
>> NAC of choice for the Park Service in the DC area...
>>
>> Dave
>>
>> P.S.  The 168.3000 [141.3] frequency is still in use for the C&O
>> Canal, as there was mention of Point of Rocks.  And then there's the
>> 166.9500 frequency, which is also supposedly for the Canal.  How does
>> it all fit together...??
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