Big Bend Nat'l Park repeater ?

[Wayne]

I posted this inquiry in the Texas forum with no replies, so I will try it here!

Recently RR added the radio communication frequencies for the Park as listed in the fire management plan on the BIBE NPS website.

http://www.radioreference.com/module...=1338#cid-3925

Channel #5 and channel #7 both show identical tone/input frequencies (166.975, pl 192.8) but different repeater output frequencies. Is this possible or is it a typo?

Wayne

 

[kwrxxx]

The URL you posted is incorrect.

 

[rfburns]

Complete URL

The URL you posted is incorrect.

The complete URL is:

http://www.radioreference.com/modules.php?name=RR&aid=1338#cid-3925

It is not unusual to use different output frequencies particularly with NPS. I suspect the info is correct, but I'll look at my notes from the last time I was at BBNP and see if I have anything.

 

[UPMan]

The first is simplex, the other is repeated. They use the first for short-range comms not through the repeater.

Same thing for the sets marked Ch 06 and 05; 12 and 15; 11 and 17; 09 and 18; 16 and 21. One is the repeater output frequency used as a local simplex mode, the other is through the repeater.

 

[Wayne]

The first is simplex, the other is repeated. They use the first for short-range comms not through the repeater..

166.37500 166.97500 192.8 PL 05 NPS-ADMIN-EMORY FM
166.37500 166.37500 192.8 PL 06 NPS-ADMIN-LOCAL FM
166.35000 166.97500 192.8 PL 07 NPS-ADMIN 3-4 RPTR. FM

Both CH 5 and CH 7 are repeated channels. If this scenario is correct, you transmit on 166.975 pl 192.8, which repeater would open?

Wayne

 

[UPMan]

Ah, sorry. I misread.

<SPECULATION>
My only guess would be that CH 5 is used off a site covering the basin (which Emory Peak would be suited for) and that there is a different repeater elsewhere in the park that is used as CH 07. The topography would support that, as the Emory site could be situated below the rim, giving Basin coverage with little or no coverage outside the rim, allowing the same input channel to be reused.
</SPECULATION>

Or, as you've speculated, 166.35 is a typo of 166.375 (but then, why duplicate the channel in the radio...).

I'd be interested in this, as well, as BBNP is one of my "favorite places in the world." Unfortunately, last time I was there was well before I moved to my current scanner-intensive position (like 1997 or so...geez has it been 10 years? Gotta make it back next Winter).

 

[Wayne]

I'd be interested in this, as well, as BBNP is one of my "favorite places in the world." Unfortunately, last time I was there was well before I moved to my current scanner-intensive position (like 1997 or so...geez has it been 10 years? Gotta make it back next Winter).

I agree UPMan! Big Bend is like no where else on this planet. Radio wise there are big changes at BIBE. Most of the frequencies in use today are digital. The radio plan posted in the Fire Management Plan is for an interop incident I believe. If you tune your scanner to the ones posted in the RR link you won't hear much!

Wayne