[Scan-DC] Mt. Vernon; zoo?

[David Schoenberger]

Andy,

The 409.4250 frequency is part of the LTR PassPort system used at the
Zoo for police/staff.  That's why it has the "key-ups" every few
seconds.  418.4250 is the input to 409.4250 (most fed repeaters
between 406-411 MHz now have inputs 9 MHz higher).

Dave

On Sun, Jun 22, 2008 at 8:39 PM, Andrew Clegg <w4jecom at w4je.com> wrote:
> Thanks Dave! Interestingly, the one frequency I found at Mt. Vernon is not
> in the RR list. Also, today I found some freqs at the zoo that are not in
> the RR list either. For what it's worth, here's what I found on Close Call
> (all analog) at the Zoo:
>
> NATIONAL ZOO 6/22/08
> o Mostly parking, plus some other ops (very active): 463.975
> (output)/468.975 (input) (both DCS632)
>
> o General ops: 409.425 & 418.425 (not in the RR list). These freqs weren't
> as active, plus the 409.425 MHz channel has constant once-per-second key-ups
> (approximately) for some reason. It makes it difficult to include it in your
> scan list.
>
>
> At Mt. Vernon, they offer what they call an "Antenna Audio Tour," which is a
> little radio receiver you rent for $6 that provides additional information
> on the various things that you see. I believe it may just tune into
> low-power transmitters placed at each point-of-interest, but CC did not lock
> on to anything. Next time I go I may rent one just to get the FCC ID off of
> it so I can look up what frequency it uses. It's possible that it uses
> something that CC would not get, like spread spectrum at 902 - 928 MHz, or
> it uses a band that the 246T doesn't support, like 315 MHz. If anyone knows
> anything about this system, please chime in.
>
> Regards,
> Andy
>
>
> ----- Original Message ----- From: "David Schoenberger"
> <davidschoenberger at gmail.com>
> To: "Scan-DC list" <scan-dc at mailman.qth.net>
> Sent: Sunday, June 22, 2008 3:58 PM
> Subject: Re: [Scan-DC] Mt. Vernon; zoo?
>
>
>> Andrew,
>>
>> Here are some frequencies for Mount Vernon:
>>
>> http://www.radioreference.com/apps/db/?aid=3138
>>
>> (The tones may have changed for one or more of the frequencies.)
>>
>> I guess it might be too late for your trip, but the Zoo has some
>> frequencies on this page (see the Federal section):
>>
>> http://www.radioreference.com/apps/db/?ctid=315
>>
>> The Zoo also uses this LTR PassPort system:
>>
>> http://www.radioreference.com/apps/db/?sid=4696
>>
>> Dave
>>
>> On Sun, Jun 22, 2008 at 9:24 AM, Andrew Clegg <w4jecom at w4je.com> wrote:
>>>
>>> At Mt. Vernon yesterday, Close Call grabbed one frequency: 469.5125 MHz.
>>> I
>>> did not actually hear the activity on that band, but I noticed that
>>> almost
>>> all of the staff were carrying radios marked "T450," so it may have been
>>> one
>>> of those. Can anyone point me to a more complete list for Mt. Vernon?
>>>
>>> I am heading to the zoo today. Anyone have frequencies for that?
>>>
>>> Cheers!
>>> Andy
>>>
>>>
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>
>
>