Recently released Air/Ground telephone calls from Lyndon Johnson to Rose Kennedy
- On Thu, Feb 02, 2012 at 05:25:35PM -0500, radioman390@... wrote:
> AGRAS 454 Mhz continues to operate to this day. Two companies operateI am aware that licenses still exist and some are still active.
> the ground stations: SkyTel and Stratophone.
LOTS and LOTS of commercial private aircraft (executive aircraft) have
had or still have transceivers for this system. Many have both Satcom,
old Airfone Magnastars, and AGRAS radios.
It would not be my impression that there is a lot of traffic on
the system any more... for one thing whether legal or not using
cellphones from aircraft usually works... and probably for a lot of
folks the rules against it are obscure and it if works hey...
As for the recent era and whether VIP or military command
aircraft have radios on the system.. possibly, the radios are cheaper
and lighter than they once were... and after 911 more emphasis exists on
backup. Whether they are used much is another question...
Certainly today the mid 90s to 2005 or so radios MAY have some
security (no longer rocket science) but it would be interesting to learn
anyone is using it much for government coms with VIP aircraft. I very
much doubt that there was ANY security on the system at all before the
mid to late 90s...
> They serve, AFAIK, about 10% of the current airground market; theVerizon Airfone is no more as an operator - their spectrum was
> remainder served by Airfone and a subsidiary of JetBlue, but those are
> at 890 Mhz.
bought by the Jet Blue Subsidiary. Not clear to what extent Verizon
still contracts with them to operate any portion of the service, since
they had an installed infrastructure of base stations and so forth they
may still be supplying some of the actual service under contract. It
is definitely true the system is still on the air, however... though
with different channel allocations than in the original AirFone era
> Of course Iridium and Globalstar offer satellite service, andIridium is quite common on aircraft these days and has been
> Marinesat as well.
adopted on the SAM VIP aircraft as well... INMARSAT is quite widely
deployed on both private jets and quite a few airliners... and I guess
there is some Globalstar too.
There is also a service based on using cellular spectrum with
cross polarized antennas... the company (Aircell) that developed this
eventually bought the other 3/4 of the old AirFone 849/894 spectrum and
has been running IP internet service via CMDA EvDO and beyond (maybe
Dave Emery N1PRE/AE, die@... DIE Consulting, Weston, Mass 02493
"An empty zombie mind with a forlorn barely readable weatherbeaten
'For Rent' sign still vainly flapping outside on the weed encrusted pole - in
celebration of what could have been, but wasn't and is not to be now either."
- No, I'm not sure exactly when the "Nationwide" system was fielded, but my
understanding has been mid to late 1960s.
I wonder if Aviation Week & Space Technology magazine ever ran a feature on
the (V)C-137s -- 58-6970/1/2 or 62-6000 back in the Kennedy era? AW&ST
articles I have from the early 1970s about EC-135 Looking Glass & E-4A
NEACP give a good breakdown of mission communications systems.
On Thursday, February 2, 2012, Blake Bowers <bbowers@...> wrote:
> Tim, are you sure about Echo Fox not being around in 62?
> I talked with a crafts person that was at a site during the Cuban Missile
> Crisis, and he told me about his supervisor insisting he take care of an
> issue on the E/F circuit, but advising him to lock himself in, and as soon
> as he was done leave and go home.
> He was very clear on the events, lots of little details.
> When did E/F start service? The commercial UHF radios were available
[Non-text portions of this message have been removed]
- IIRC the NEACP transportable ECI trailer GEP's were deployed about 1962, Waldorf & other GEP's came online soon thereafter;same for Blue Eagle.
Issue B of BSP 408-440-100LL(ECI) is dated 1965 so issue A is obviously prior to that date.
As for Echo-Fox, I recall it being deployed in the mid 1960's; again a BSP first issue date could confirm; issue 2 of BSP 406-116-510 is dated 1970.
The definitive answer is buried in USAF,DTIC,WHCA,AT&T,etc documents, some of which may be discovered online eventually.
--- In firstname.lastname@example.org, Polo Hat <polohat@...> wrote:
> No, I'm not sure exactly when the "Nationwide" system was fielded, but my
> understanding has been mid to late 1960s.
> I wonder if Aviation Week & Space Technology magazine ever ran a feature on
> the (V)C-137s -- 58-6970/1/2 or 62-6000 back in the Kennedy era? AW&ST
> articles I have from the early 1970s about EC-135 Looking Glass & E-4A
> NEACP give a good breakdown of mission communications systems.
> On Thursday, February 2, 2012, Blake Bowers <bbowers@...> wrote:
> > Tim, are you sure about Echo Fox not being around in 62?
> > I talked with a crafts person that was at a site during the Cuban Missile
> > Crisis, and he told me about his supervisor insisting he take care of an
> > issue on the E/F circuit, but advising him to lock himself in, and as soon
> > as he was done leave and go home.
> > He was very clear on the events, lots of little details.
> > When did E/F start service? The commercial UHF radios were available
> > 62
> [Non-text portions of this message have been removed]
- The GEP at Stanfield was installed in 1970. At that time I recall
hearing this system was to supplement or replace the Echo Fox located at
Graniteville (Charlotte NC) which had been in service about ten years.
However I've nothing to document that and have lost contact with
everyone who worked at Graniteville at that time. Several that I knew
very well have expired.