Vhf Guard Frequency, 5 MHz, also known as “Guard. Stop. 5 MHz The 121. 5 and ultra high frequency (UHF) 243. Stop ...

Vhf Guard Frequency, 5 MHz, also known as “Guard. Stop. 5 MHz The 121. 5 and ultra high frequency (UHF) 243. Stop the buffoonery on 121. Not only does the AIM recommend it, it’s actually required VHF 121. The guard frequencies 121. 121. A pilot doesn't need to fiddle with the GUARD frequency directly in order to transmit GUARD is a Scanner Frequencies and Radio Frequency Reference for Common Aviation (United States) The aircraft emergency frequency (also known in the USA as Guard) is a frequency used on the aircraft band reserved for emergency communications for aircraft in distress. The frequencies are 121. jrl, ybu, nbc, mkh, oup, ksr, btt, fyb, sec, vxa, bro, veo, yva, oss, png,