When is UHF required?
#1
Gets Weekends Off
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Joined APC: Dec 2016
Posts: 171
When is UHF required?
I work for a 135 operator and the airplane does not have a UHF radio. We have ops spec which allows the airplane to fly with single-long range in the western Atlantic. I am being told by people in our training department that we are not allowed to fly the Atlantic Routes between the Bahamas and Wilmington because we don’t have a UHF radio. Is this correct?
Regs specifically state UHF is required beyond line of site communication, but that doesn’t really answer my question.
Regs specifically state UHF is required beyond line of site communication, but that doesn’t really answer my question.
#2
I work for a 135 operator and the airplane does not have a UHF radio. We have ops spec which allows the airplane to fly with single-long range in the western Atlantic. I am being told by people in our training department that we are not allowed to fly the Atlantic Routes between the Bahamas and Wilmington because we don’t have a UHF radio. Is this correct?
Regs specifically state UHF is required beyond line of site communication, but that doesn’t really answer my question.
Regs specifically state UHF is required beyond line of site communication, but that doesn’t really answer my question.
#4
Busdriver:
UHF is used almost exclusively by military.
225-399.95 MHz
Typical ATC VHF:
118.0-136.95MHz
HF is the lowest frequency (and therefore, longest range)
2.1-28.0 MHz
Usually written as
2100-28,000 KHz.
UHF is used almost exclusively by military.
225-399.95 MHz
Typical ATC VHF:
118.0-136.95MHz
HF is the lowest frequency (and therefore, longest range)
2.1-28.0 MHz
Usually written as
2100-28,000 KHz.
#7
The more common VHF ATC radios have a range of about 120-200 miles, depending on a number of factors.
Overwater routes that exceed or are near these limits will require HF. HF can sometimes go halfway around the world...very dependent on frequency, time of day, the ionosphere, and atmospheric/solar interference.
For airlines, we are required “LDOC:” Long Distance Operational Control. This can be met by ACARS and SATCOM, with HF as a backup. LDOC is also used for ATC coordination on long haul routes, such as the Atlantic or Pacific.
I’m not sure in your case if that is for Operational Control, ATC, or both.
In days past, it was done by dual HFs. Your company might get by with that, or an HF and a SATCOM.
Overwater routes that exceed or are near these limits will require HF. HF can sometimes go halfway around the world...very dependent on frequency, time of day, the ionosphere, and atmospheric/solar interference.
For airlines, we are required “LDOC:” Long Distance Operational Control. This can be met by ACARS and SATCOM, with HF as a backup. LDOC is also used for ATC coordination on long haul routes, such as the Atlantic or Pacific.
I’m not sure in your case if that is for Operational Control, ATC, or both.
In days past, it was done by dual HFs. Your company might get by with that, or an HF and a SATCOM.
#8
I don’t think you need HF between Carolina Beach and the Florida airports, VHF has coverage. Further east and over BDA, you’ll need HF. AR3 is only 200 nautical off JAX, which st jet levels has VHF coverage.
GF
GF
#10
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