![U.S Air Force AIRMAN 1ST Class Jeff Patricelli, a ground radio communications apprentice, aligns the A3 Pre-amplifier/AGC/Squelch Module in a GRR-22 Radio reciever at a communications facility at Mount Lemmon, Tucson, Ariz., U.S Air Force AIRMAN 1ST Class Jeff Patricelli, a ground radio communications apprentice, aligns the A3 Pre-amplifier/AGC/Squelch Module in a GRR-22 Radio reciever at a communications facility at Mount Lemmon, Tucson, Ariz.,](https://cdn10.picryl.com/photo/2004/11/05/us-air-force-airman-1st-class-jeff-patricelli-a-ground-radio-communications-732538-1600.jpg)
U.S Air Force AIRMAN 1ST Class Jeff Patricelli, a ground radio communications apprentice, aligns the A3 Pre-amplifier/AGC/Squelch Module in a GRR-22 Radio reciever at a communications facility at Mount Lemmon, Tucson, Ariz.,
![SENIOR AIRMAN Dave Lewis, USAF, Ground Radio Technician, 100th Communications Squadron, RAF Mildenhall, United Kingdom, performs a verbal test on the multi-channel GRC171 UHF transceiver used to communicate with aircraft - NARA SENIOR AIRMAN Dave Lewis, USAF, Ground Radio Technician, 100th Communications Squadron, RAF Mildenhall, United Kingdom, performs a verbal test on the multi-channel GRC171 UHF transceiver used to communicate with aircraft - NARA](https://cdn10.picryl.com/photo/2001/11/19/senior-airman-dave-lewis-usaf-ground-radio-technician-100th-communications-a37823-1024.jpg)
SENIOR AIRMAN Dave Lewis, USAF, Ground Radio Technician, 100th Communications Squadron, RAF Mildenhall, United Kingdom, performs a verbal test on the multi-channel GRC171 UHF transceiver used to communicate with aircraft - NARA
![U.S. Air Force Staff Sgt. Malcolm Henry, a Radio Frequency (RF) Transmission Systems Supervisor assigned to the 509th Communication Squadron, sets up a satellite transmission communicator at Whiteman Air Force Base, Missouri, U.S. Air Force Staff Sgt. Malcolm Henry, a Radio Frequency (RF) Transmission Systems Supervisor assigned to the 509th Communication Squadron, sets up a satellite transmission communicator at Whiteman Air Force Base, Missouri,](https://c8.alamy.com/comp/2GKD8A2/us-air-force-staff-sgt-malcolm-henry-a-radio-frequency-rf-transmission-systems-supervisor-assigned-to-the-509th-communication-squadron-sets-up-a-satellite-transmission-communicator-at-whiteman-air-force-base-missouri-march-18-2021-rf-transmission-systems-personnel-deploy-sustain-troubleshoot-and-repair-standard-radio-frequency-wireless-line-of-sight-beyond-line-of-sight-wideband-ground-based-satellite-encryption-transmission-devices-and-intrusion-detection-systems-in-fixed-and-deployed-environments-2GKD8A2.jpg)
U.S. Air Force Staff Sgt. Malcolm Henry, a Radio Frequency (RF) Transmission Systems Supervisor assigned to the 509th Communication Squadron, sets up a satellite transmission communicator at Whiteman Air Force Base, Missouri,
![Airmen assigned to the 23d Wing and 93d Air Ground Operations Wing test high-frequency radio communications Feb. 23, 2021, at MacDill Air Force Base, Florida. During agile combat employment exercise Mosaic Tiger, Airmen assigned to the 23d Wing and 93d Air Ground Operations Wing test high-frequency radio communications Feb. 23, 2021, at MacDill Air Force Base, Florida. During agile combat employment exercise Mosaic Tiger,](https://c8.alamy.com/comp/2H0F912/airmen-assigned-to-the-23d-wing-and-93d-air-ground-operations-wing-test-high-frequency-radio-communications-feb-23-2021-at-macdill-air-force-base-florida-during-agile-combat-employment-exercise-mosaic-tiger-airmen-assigned-to-the-23d-wg-and-93d-agow-set-up-an-antenna-to-communicate-with-moody-via-high-frequency-radio-waves-utilizing-the-high-frequency-range-allows-these-airmen-to-communicate-across-long-distances-without-encountering-vulnerabilities-inherent-to-satellite-communications-such-as-malicious-attacks-or-loss-of-service-mosaic-tiger-tested-the-23d-wgs-ability-to-integrate-mu-2H0F912.jpg)
Airmen assigned to the 23d Wing and 93d Air Ground Operations Wing test high-frequency radio communications Feb. 23, 2021, at MacDill Air Force Base, Florida. During agile combat employment exercise Mosaic Tiger,
US Air Force (USAF) SENIOR AIRMAN (SRA) Justin Hudson, Ground Radio Communications Apprentice, 35th Communications Squadron (
![U.S Air Force AIRMAN 1ST Class Jeff Patricelli, a ground radio communications apprentice, removes a screw from a receiver during a scheduled maintenance inspection at a communications facility at Mount Lemmon, Tucson, U.S Air Force AIRMAN 1ST Class Jeff Patricelli, a ground radio communications apprentice, removes a screw from a receiver during a scheduled maintenance inspection at a communications facility at Mount Lemmon, Tucson,](https://cdn10.picryl.com/photo/2004/11/05/us-air-force-airman-1st-class-jeff-patricelli-a-ground-radio-communications-0abfae-1600.jpg)
U.S Air Force AIRMAN 1ST Class Jeff Patricelli, a ground radio communications apprentice, removes a screw from a receiver during a scheduled maintenance inspection at a communications facility at Mount Lemmon, Tucson,
![US Air Force (USAF) Ground Radio Maintenance Technician, AIRMAN 1ST Class (A1C) David Waterman injects a frequency into a receiver card to test for alignment and tuning procedures during a Periodic Maintenance US Air Force (USAF) Ground Radio Maintenance Technician, AIRMAN 1ST Class (A1C) David Waterman injects a frequency into a receiver card to test for alignment and tuning procedures during a Periodic Maintenance](https://cdn10.picryl.com/thumbnail/2001/03/21/us-air-force-senior-airman-terrance-davis-1st-communications-squadron-radio-4e50ef-200.jpg)
US Air Force (USAF) Ground Radio Maintenance Technician, AIRMAN 1ST Class (A1C) David Waterman injects a frequency into a receiver card to test for alignment and tuning procedures during a Periodic Maintenance
![Afghan Air Force members communicates on the ground with an A-29 Super Tucano pilot over radio communications near Logar Province, Afghanistan, May 21, 2017. Train, Advise, Assist Command-Air (TAAC-Air) advisors, held a Afghan Air Force members communicates on the ground with an A-29 Super Tucano pilot over radio communications near Logar Province, Afghanistan, May 21, 2017. Train, Advise, Assist Command-Air (TAAC-Air) advisors, held a](https://c8.alamy.com/comp/MR7MRM/afghan-air-force-members-communicates-on-the-ground-with-an-a-29-super-tucano-pilot-over-radio-communications-near-logar-province-afghanistan-may-21-2017-train-advise-assist-command-air-taac-air-advisors-held-a-live-fire-training-exercise-for-a-class-of-afghan-tactical-air-coordinators-prior-to-the-exercise-advisors-from-taac-air-conducted-three-weeks-of-classroom-training-the-live-fire-exercise-is-part-of-a-practical-evaluation-before-afghan-air-force-personnel-can-graduate-as-atacs-us-air-force-photos-by-tech-sgt-veronica-pierce-MR7MRM.jpg)
Afghan Air Force members communicates on the ground with an A-29 Super Tucano pilot over radio communications near Logar Province, Afghanistan, May 21, 2017. Train, Advise, Assist Command-Air (TAAC-Air) advisors, held a
![Deployed Aircraft Ground Response Element members with the 1st Special Operations Security Forces Squadron set up radio transmitter signals before an exercise at Eglin Air Force Base, Fla., August 4, 2017. Radios Deployed Aircraft Ground Response Element members with the 1st Special Operations Security Forces Squadron set up radio transmitter signals before an exercise at Eglin Air Force Base, Fla., August 4, 2017. Radios](https://c8.alamy.com/comp/MN1RKH/deployed-aircraft-ground-response-element-members-with-the-1st-special-operations-security-forces-squadron-set-up-radio-transmitter-signals-before-an-exercise-at-eglin-air-force-base-fla-august-4-2017-radios-are-used-to-ensure-the-team-has-communication-with-each-other-throughout-the-exercise-us-air-force-photo-by-airman-1st-class-isaac-o-guest-iv-MN1RKH.jpg)