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helicopter unicom frequency

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HeliSpot

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Nov 22, 1999, 3:00:00 AM11/22/99
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OK guys, here's a question for you.

Here in L.A., we use 123.025 for heli-to-heli communications. But, we
hear that others cities are using other frequencies. For example, San
Diego heli's are reportedly using 123.05 for their communications
because they get a lot of spill-over from L.A. choppers.

I'm just curious what freq's everybody's using from around the country
(and world) to communicate from bird to bird...

Thoughts?


--
=====================================================
Alex Calder
ne...@helispot.com

HeliSpot - A web page about helicopters
http://www.helispot.com
=====================================================


Kris

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Nov 22, 1999, 3:00:00 AM11/22/99
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HeliSpot wrote:

Here in the Bay Area we also use 123.025 for Heli to Heli. Although
there is another unlisted freq of 124.3 that is used for "Golden Gate"
traffic, most often used when touring the bay. Sometimes I hear others on
freq, sometimes not.

I've never heard the various traffic helicopters, except when reporting
with ATC. Wonder what freq they use around the bay?


Butch Grafton

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Nov 22, 1999, 3:00:00 AM11/22/99
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4. VHF RADIO REQUIREMENTS.

a. It is strongly recommended that aircraft owners upgrade their VHF
radio communication systems and install 760 channel equipment that is
operable in the 118.000 to 136.975 MHz band with 25 kHz channel spacing, if
they want to be ensured of receiving full air traffic control (ATC)
services.

b. Due to heavy congestion in all parts of the country and the
requirements to provide additional ATC services, the FAA is using 25 kHz
spacing for all air / ground communications systems.

c. The FAA is ready to fully implement 25 kHz channeling in the 118.00 to
136.975 MHz band.

d. Upgrading airborne equipment to the current 720 or future 760 channel
radios will provide access to three additional Unicom channels in the 118 -
136 MHz band (122.725, 122.975, and 123.075 MHz). In addition, the 760
channel radios could provide access to as many as five Unicom channels in
the 136 - 136.975 MHz band.

5. FREQUENCY ASSIGNMENT PLAN.

a. All air traffic control frequencies in the 118.000 to 136.975 MHz band
will be assigned in accordance with the following 25 kHz channel assignment
plan.
(1) Only the emergency frequency 121.5 MHz will continue to have 100
kHz protection.
(2) Air route traffic control center (ARTCC) enroute and terminal
assignments will be on any selected 25 kHz air traffic control channel in
the 118.000 to 136.975 MHz band.

b. All flight service station (FSS) frequencies in the 121.975 to 122.675
MHz band will be assigned on any selected 25 kHz channels.

c. New air traffic control or advisory services that require assignments
in the 118.000 to 136.975 MHz band will be assigned 25 kHz channels only.

d. Frequency assignments in the 136.00 to 136.975 MHz band will be phased
in gradually depending on the services required (e.g., Automated Weather
Observing System (AWOS), Automatic Terminal Information System (ATIS),
Common Traffic Advisory Frequency (CTAF), and the availability of 760
channel radio equipment).

e. Pilots operating aircraft with 360 channel radios may experience some
interference from adjacent channel assignments.

6. ALLOCATION OF FREQUENCIES FOR THE AERONAUTICAL MOBILE SERVICE.

Frequencies (MHz): 118.000 - 121.400
Use: Air Traffic Control

Frequencies (MHz): 121.425 - 121.475
Use: Band Protection for 121.5

Frequencies (MHz): 121.500
Use: Emergency Search and Rescue (ELT Operational Check, 5 Sec)

Frequencies (MHz): 121.525 - 121.575
Use: Band Protection for 121.5

Frequencies (MHz): 121.600 - 121.925
Use: Airport Utility and ELT Test

Frequencies (MHz): 121.950
Use: Aviation Instructional and Support

Frequencies (MHz): 121.975
Use: FSS Private Aircraft Advisory

Frequencies (MHz): 122.000 - 122.050
Use: Enroute Flight Advisory Service (EFAS)

Frequencies (MHz): 122.075 - 122.675
Use: FSS Private Aircraft Advisory

Frequencies (MHz): 122.700 - 122.725
Use: UNICOM - Uncontrolled Airport and Aeronautical Utility

Frequencies (MHz): 122.750
Use: Aircraft Air-to-Air

Frequencies (MHz): 122.775
Use: Aviational Instructional and Support

Frequencies (MHz): 122.800
Use: UNICOM - Uncontrolled Airport

Frequencies (MHz): 122.825
Use: Domestic VHF

Frequencies (MHz): 122.850
Use: Multicom - Special Use and Aviation Support on Noninterference Basis

Frequencies (MHz): 122.875
Use: Domestic VHF

Frequencies (MHz): 122.900
Use: Multicom

Frequencies (MHz): 122.925
Use: Multicom - Natural Resources

Frequencies (MHz): 122.950
Use: UNICOM - Airport with full time ATCT or full time FSS

Frequencies (MHz): 122.975 - 123.000
Use: UNICOM - Uncontrolled Airport

Frequencies (MHz): 123.025
Use: Helicopter Air-to-Air

Frequencies (MHz): 123.050 - 123.075
Use: UNICOM - Uncontrolled Airport

Frequencies (MHz): 123.100
Use: Aeronautical Search and Rescue; also Temporary Control Tower on
secondary basis

Frequencies (MHz): 123.125 - 123.275
Use: Flight Test Stations

Frequencies (MHz): 123.300
Use: Aviation Support

Frequencies (MHz): 123.325 - 123.475
Use: Flight Test Stations

Frequencies (MHz): 123.500
Use: Aviation Support

Frequencies (MHz): 123.525 - 123.575
Use: Flight Test Stations

Frequencies (MHz): 123.600 - 123.650
Use: FSS Air Carrier Advisory

Frequencies (MHz): 123.675 - 128.800
Use: Air Traffic Control

Frequencies (MHz): 126.200
Use: Air Traffic Control Military (Common)

Frequencies (MHz): 128.825 - 132.000
Use: Domestic VHF (Operational Control)

Frequencies (MHz): 132.025 - 135.825
Use: Air Traffic Control

Frequencies (MHz): 134.100
Use: Air Traffic Control Military (Common)

Frequencies (MHz): 135.850
Use: Flight Inspection Use

Frequencies (MHz): 135.875 - 135.925
Use: Air Traffic Control

Frequencies (MHz): 135.950
Use: Flight Inspection Use

Frequencies (MHz): 135.975 - 136.075
Use: Air Traffic Control

Frequencies (MHz): 136.100
Use: Future Use UNICOM or AWOS

Frequencies (MHz): 136.125 - 136.175
Use: Air Traffic Control

Frequencies (MHz): 136.200
Use: Future Use UNICOM or AWOS

Frequencies (MHz): 136.225 - 136.250
Use: Air Traffic Control

Frequencies (MHz): 136.275
Use: Future Use UNICOM or AWOS

Frequencies (MHz): 136.300 - 136.350
Use: Air Traffic Control

Frequencies (MHz): 136.375
Use: Future Use UNICOM or AWOS

Frequencies (MHz): 136.400 - 136.450
Use: Air Traffic Control

Frequencies (MHz): 136.475
Use: Future Use UNICOM or AWOS

Frequencies (MHz): 136.500 - 136.975
Use: Domestic VHF (Operational Control and Special Purpose)

Hope this helps.

Butch

HeliSpot

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Nov 23, 1999, 3:00:00 AM11/23/99
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Steve Waltner

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Nov 23, 1999, 3:00:00 AM11/23/99
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I was told to use 123.45 for air-to-air communications. This is in the
Wichita, KS area.

--
Steve Waltner
swal...@kscable.com

Micbloo

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Nov 23, 1999, 3:00:00 AM11/23/99
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>I'm just curious what freq's everybody's using from around the country
>(and world) to communicate from bird to bird...

Here in the NYC area they use a variety of frequencys:
Flying in LaGuardias Class B airspace and you have to contact them on 126.050
Hudson River exclusion Unicom: 123.050 and state your location/altitude and
whether fixed wing or helo. Some pilot chatter. Also used as the Wall Street
and West 30St Heliport frequency.
East River Exclusion (north tip of Roosevelt Island to Williamsburg Bridge, not
very long) unicom: 123.075. Also used as East 34st Heliport frequency.
Heading to JFK airspace? Either 125.25 or 119.1
Going to Newark? 127.850
Teterboro? 119.5
The numerous ENG ships use 123.025 as their "company" (talk-around) frequency.
NYPD Aviation uses 123.100 for Company.
I've heard lots of fixed wings chattering on 123.45 here on Long Island and
Nassau County PD uses 123.000 for their company.
And different copter companys have their own company freq. I know Liberty
Helicopters (the cities big sightseeing outfit) have a company freq but I
havent found out the freq yet (help? LOL).
So a lot of different freqs to work with on your radio.
How about a PD ship working in the Bronx? He is in constant contact with
LaGuardia, monitoring the PD Citywide freq or working a division freq. and also
listening for their Base to call them on Company while also working a FLIR or
Nightsun and if working low level looking out for those nasty obstructions.
Luckily they fly two pilots at all times which lightens the workload in the
cockpit.
Or a corporate ship coming in from the east transitioning to the south? They
contact LaGuardia at the Throgs Neck Bridge, then change to the ER freq., then
quickly to the Hudson River freq (Which starts at the Williamsburg Bridge) then
in NY Harbor over to Newark.
Busy, busy but I guess their radios are pretty much pre-set like my scanner.

Gerard

HeliSpot

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Nov 23, 1999, 3:00:00 AM11/23/99
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On Tue, 23 Nov 1999 02:14:01 GMT, swal...@kscable.com (Steve Waltner)
wrote:

> I was told to use 123.45 for air-to-air communications. This is in the
>Wichita, KS area.


Yeah, that's what I'm looking for...

Wow Gerard, that's enough to hold me over for a while!!!

Yeah, I don't need tower helicopter freq's and such... Just the
helicopter unicom's are fine... Here in L.A., there's an LAPD
helicopter unicom, a freq that the radio traffic people use to chat,
etc... But generally everybody's still on 123.025.. I'm just
curious what areas use this freq (I think it's listed in AIM
somewhere, right?) and which ones use other freq's, and what those
freq's are...

Keep 'em coming...

This is also a little side research project I'm doing for the
Professional Helicopter Pilots Association of Southern California...

Anyway, keep 'em coming guys. I appreciate it...

Micbloo

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Nov 23, 1999, 3:00:00 AM11/23/99
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>Wow Gerard, that's enough to hold me over for a while!!!

Hehehe!!
I was on a roll!!
Like I said the 123.025 here is basically
only the ENG guys.
Keep up the good work Alex!!
And I am getting new pictures ready!!
I know I keep saying that but "Its twue, it's twue"!!!!

Gerard

JIM105

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Nov 23, 1999, 3:00:00 AM11/23/99
to
>I'm just curious what freq's everybody's using from around the country
>(and world) to communicate from bird to bird...
>
>Thoughts?

Up in the SF Bay area we use 123.025 for most EMS traffic and general junk
outside the bay, but inside the bay (ever since Naval Base Alameda closed down)
we have a "gentlemans agreement" to do air to air on 124.3. If you want to
talk with the CHP air unit you need to go to 122.875. Of course we have
nowhere near the volume of helicopter traffic that SoCal has, part of that is
due to geography, but a huge problem is no landing spots within San Francisco
city limits! It has deterred people from getting helicopters for years around
here.

Jim

John Eacott

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Nov 23, 1999, 3:00:00 AM11/23/99
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HeliSpot <ne...@helispot.com> wrote in message
news:383cd543....@news.earthlink.net...

> OK guys, here's a question for you.
>
> Here in L.A., we use 123.025 for heli-to-heli communications. But, we
> hear that others cities are using other frequencies. For example, San
> Diego heli's are reportedly using 123.05 for their communications
> because they get a lot of spill-over from L.A. choppers.
>
> I'm just curious what freq's everybody's using from around the country
> (and world) to communicate from bird to bird...
>

Down here we have 120.40 designated for helicopter air to air use.
Enshrined in legislation, we had to stop CASA using it as a weekend relief
frequency for north east Victoria/southern NSW. Not too much luck until the
Spectrum Management Agency took up the argument, it's nice to have an
occasional win against the legislators!


--
John Eacott
The Helicopter Service Australia

John C. Martin

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Nov 23, 1999, 3:00:00 AM11/23/99
to
We use 123.45 here in our part of Oz, but it's not official just a local
thing. As far as I am aware we don't have any official helo-helo
frequencies here. We are just the same as other traffic and are supposed
to stay on the area frequency. We usually just use the term "Go the
numbers" which lets the other guy know to go to the above frequency.

john

HeliSpot wrote:

> OK guys, here's a question for you.
>
> Here in L.A., we use 123.025 for heli-to-heli communications. But, we
> hear that others cities are using other frequencies. For example, San
> Diego heli's are reportedly using 123.05 for their communications
> because they get a lot of spill-over from L.A. choppers.
>
> I'm just curious what freq's everybody's using from around the country
> (and world) to communicate from bird to bird...
>

> Thoughts?

Hlywood

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Nov 23, 1999, 3:00:00 AM11/23/99
to
Alex,

Around Arizona the EMS, ENG and LEN ships all use 123.025. We have twelve
ships in and out of our metro area, we have got to stay ahead of ATC.

Chris Z

Stan Gosnell

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Nov 26, 1999, 3:00:00 AM11/26/99
to
On Mon, 22 Nov 1999 23:44:06 GMT, ne...@helispot.com (HeliSpot) wrote:

>OK guys, here's a question for you.
>
>Here in L.A., we use 123.025 for heli-to-heli communications. But, we
>hear that others cities are using other frequencies. For example, San
>Diego heli's are reportedly using 123.05 for their communications
>because they get a lot of spill-over from L.A. choppers.
>
>I'm just curious what freq's everybody's using from around the country
>(and world) to communicate from bird to bird...

In the Gulf of Mexico, the official frequency (per HAI) is 123.025 for
communications between ships from different companies (such as when
one has to move to allow another to land). Each company has its own
unofficial BS frequency, just as each has its own flight following
frequencies. The flight following frequencies are obtained through
ARINC, the BS freqs are just made up, & include 123.4, 123.45,
122.925, & others.

Houston local traffic uses 123.025.

---

Regards,

Stan

mike

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Nov 26, 1999, 3:00:00 AM11/26/99
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If you read in the AIMs, 123.025 is the common helicopter freq.
Most operators use this, makes sense doesn't it?

Stan Gosnell <stang@[204.52.135.1]> wrote in message
news:383e0203...@news.hal-pc.org...

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