70cm Ham Radio Band
From Free Knowledge Base- The DUCK Project: information for everyone
The 70-centimeter amateur radio band is the 420 to 450 MHz portion of the UHF radio spectrum. Propagation characteristics change with frequency. For example, As frequency decreases, building penetration improves, however, signal is more easily blocked or reflected off of objects. Higher frequencies also present a lower noise floor, making it easier to overcome both natural and artificial interference, especially prevalent in urban environments.
ARRL 70 Centimeter Band Plan
- 420.00-432.00 Amateur Television (ATV)
- 432.00-432.07 EME (Earth-Moon-Earth)
- 432.07-432.10 Weak-signal CW
- 432.10-432.30 Mixed-mode and weak-signal work CW/SSB Calling Frequency= 432.100 MHz
- 432.30-432.40 Propagation Beacons
- 432.40-433.00 Mixed-mode and weak-signal work
- 433.00-435.00 Auxiliary/repeater links
- 435.00-438.00 OSCAR (satellite)
- 438.00-444.00 Amateur Television (ATV)
- 442.00-445.00 Repeater inputs and outputs (note overlap with preceeding ATV subband)
- 445.00-447.00 Shared by auxiliary and control links, repeaters and simplex National FM Simplex Frequency= 446.00 MHz
- 447.00-450.00 Repeater inputs and outputs
