Aircraft VHF communications are conducted on 118.000-136.975 MHz AM. The military uses UHF AM on 225-399.975 MHz. The US Military also operates on civilian VHF airband frequencies, mostly so Military aircraft can contact civilian aircraft as well as Military. Unlike civilian aircraft, the Military is allowed to use encrypted communications. In fact, the US Military is allowed to use almost every frequency, modulation, and encryption it deems "necessary," but thy generally avoid civilian frequencies and those frequencies reserved for non-military international frequencies. One exception is that the Coast Guard, a military organization, operates on the civilian MF/HF and VHF Marine frequencies as well as military reserved frequencies. =========================================================== Richard Van Fossan Richardv@pobox.com (253) 230-2525
On Tue, Jan 28, 2025 at 10:16 PM Richard Van Fossan richvanf@gmail.com wrote:
Specifications:
- Transmit (TX): 136-173.9975 MHz (VHF) and 400-469.9975 MHz (UHF)
- Receive (RX): 50-600 MHz (full band)
The Airband covers 108-137 MHz, so the radio CANNOT transmit on any aircraft frequencies EXCEPT, perhaps, the overlap of 136-137 MHz, so if you avoid that frequency range, you should be safe.
=========================================================== Richard Van Fossan Richardv@pobox.com (253) 230-2525
On Tue, Jan 28, 2025 at 7:40 PM CN7 via Users < users@lists.chirpmyradio.com> wrote:
Cheers for that n 73 Glenn
On 29/1/25 13:26, K0LNY ?? via Users wrote:
Hi, If it can transmit on those frequencies, just put a different TX
frequency
in that row. When I have set up Baofengs for non-Hams, I put frequencies like FRS frequencies in the rows of the Ham stations. Glenn ----- Original Message ----- From: "CN7 via Users"users@lists.chirpmyradio.com To: "Richard Van Fossan via Users"users@lists.chirpmyradio.com Cc: "CN7"chadnet7@gmail.com Sent: Tuesday, January 28, 2025 9:21 PM Subject: [users] Re: Airport Freqs
Sorry Richard...
Forgot to add "Quansheng UV-K5(8)"
Loaded and receiving transmissions.
But, hope there is ABSOLUTELY NO possibility to TX!!!
Again, Thank You!
On 29/1/25 13:00, Richard Van Fossan via Users wrote:
Most HT's which can receive aircraft frequencies do not support AM operation (air band communications are AM) and are blocked from transmitting on air band frequencies.
=========================================================== Richard Van Fossan Richardv@pobox.com (253) 230-2525
On Tue, Jan 28, 2025 at 6:04 PM CN7 via Usersusers@lists.chirpmyradio.com wrote:
How does one imput freqs for an airport?
Rockhampton QLD Aussie
Tower freq is 118.1Mhz - BUT I do NOT want it to accidently tx on it.
So, how does one, block TX mode?
rgrds n 73 _______________________________________________ Users mailing list users@lists.chirpmyradio.com
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