[MilCom] FAA UHF Spectrum Holes

[Bill "Superspy" Boltinghouse]

Military equipment is not suceptible to birdies like cheap civilian systems

Different types of receiver techniques are used

Even using full duplex as do the Northstar Network uses the frequencies are
chosen for the purpose of transmit and receive frequencies allowing for a
full duplex mode with 1,000 watt transmit power and ultimum receiver
sensitivity

Some of the discrete freqs fall within the Glide Slope channels

The new 380-399.9 nfm Base Radio System which is narrow band 12.5khz steps
is also within the same area as the Intraserive Radio System with is the FRS
of the DOD.

Some holes are areas in which no one has monitored a transmission or freqs
used on a standby basis

Even though the FAA uses some freqs in the UHF Mil 225-400mhz region, their
assignment is made through the MAG or the Military Assignment Group

Read the NTIA Redbook for more info
http://www.ntia.doc.gov/osmhome/redbook/redbook.html

The Digital Aeronautical Flight Information File is another area to download
and read manuals and databases

https://164.214.2.62/products/digitalaero/index.cfm

DISA's JITC is the test facility for the JTRS http://jitc.fhu.disa.mil/jtrs/

Under http://jitc.fhu.disa.mil/jtrs/#Test%20Capabilities you can dowload the
manuals for the respective waveforms test procedures

To see what the FAA is doing with Spectrum Planning
http://www.faa.gov/ats/aaf/asr/

With some research online, you can fill alot of the HOLES in the UHF
spectrum

Bill Boltinghouse
208 South 1st Street Apt 4A
Council Bluffs Iowa 51503
712-256-0136
http://billboltinghouse.tripod.com/bill-webs/

----- Original Message ----- 
From: "Sheldon Daitch" <sdaitch at ibb.gov>
To: <milcom at mailman.qth.net>
Sent: Wednesday, September 22, 2004 8:01 AM
Subject: Re: [MilCom] FAA UHF Spectrum Holes


> Just thinking out loud, is it possible that some UHF frequencies are
> not used as they are not usable due to receiver local osciallator
> signals or other internal signals in co-located equipment at
> multi-frequency sites?  Also, are some of these "holes" related to some
> special purpose satellite uplink channels and would not be user friendly
> to "bird" users?
>
> My two pesos' worth.
>
> 73
> Sheldon
> WA4MZZ
>
> AllanStern at aol.com wrote:
> >
> > dehmmy at gmail.com writes:
> > >
> > > Could you guys please eleborate a little more on these "holes" you are
> > >  referring to..... or point me to an article.. thanks
> >
> > Just freqs for which there have not been any receptions or use reported.
> >
> > AL STERN  Satellite Beach FL
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