Re: [IRCA] US agencies and callsigns.

[Charles A Taylor <MWDXer@xxxxxxx>]

Patrick,

Thanks for that piece of info. I've been trying to convince some folks
that the FCC has no direct authority over electromagnetic radiation of
other federal agencies.

Nonetheless, the other agencies don't just take it into their heads to
assign just any frequency or callsign that suits their fancy.

FOLKS, the FCC has authority over commercial and private HFBC stations.
IBB and FCC coordinate their frequency requirements via NTIA, and then
NTIA sends US's frequency requirements to the ITU who then works with
NTIA and counterpart agencies of other countries to resolve conflicts.

Thank you again, Patrick.

IBB DOES NOT EVER USE CALLSIGNS as far as I know.

There is the "anomaly" of the Philippine National Telecommunications
Commission assigning the callsign "DWVA" to IBB Philippines.

I suspect that IBB never uses that callsign on-air, but I bet if
NTC and IBB get into a pissing contest, IBB will HAVE to use that
callsign. A matter of treaty. IBB is there because RP says it's OK,
oh, and Philippine Broadcasting Service uses IBB facilities for
overseas broadcasts.

I doubt that that's going to happen, though.

  Charles A Taylor, WD4INP
  Greenville, North Carolina


At 04:19 PM 7/30/2007 -0600, you wrote:
>Charles said: I'm trying to "nosh" this out. I believe that FCC, through
>NTIA, assigns "blocks" of callsigns, and the agencies assign their own
>callsign from each block.
>/////
>This is true from my experiences working for several Federal agencies,
>especially on the HF frequencies. But most of the VHF/UHF operations
>that I have been involved with have only used tactical call signs. That
>may be due to the temporary nature of them. I do know that even the
>temporary setups without call letters must be coordinated with the NTIA
>since the frequencies we use are all shared with other Federal agencies.
>
>In 1997 I installed three repeaters in the Denver area to support the
>G-8 Summitt Conference. In 1998 I installed a repeater atop the hospital
>in Key West FL in support of the Hurricane Georges relief efforts. And
>in 1999 I installed a repeater atop the hospital at Fort Dix NJ in
>support of Operation Provide Refuge (the Kosovo relief effort). These
>were all 406 MHz Federal band repeaters and all were temporary
>installations. Much of the communications on them was encrypted. They
>were all NTIA frequency coordinated. But even though they all had wide
>coverage none were assigned call letters. Most were only operational for
>three months or less. One of the Denver installations was on a tower
>supporting direction finding antennas for the FCC Denver field office! I
>found it amusing to have an FCC field agent helping me install an
>unlicensed repeater on an FCC tower!
>
>On the other hand, almost every HF operation I have been involved with,
>even temporary installations, have been assigned call letters from the
>NTIA pool. Perhaps this has something to do with the International
>treaties and the long distance nature of HF. The only exception to this
>that I can recall was several HF exchanges on the SHARES network from a
>USCG C-130 over the Atlantic during Hurricane Georges. In that case the
>aircraft's tactical identifier was used which was probably appropriate
>for the situation.
>
>Patrick Griffith, Westminster CO
>Broadcast Technician
>NRC Broadcasting - Denver
>http://community.webtv.net/N0NNK/
>http://community.webtv.net/AM-DXer/
>
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