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General |
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Frequency coverage
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F5121D
136–174MHz
F6121D
400-470MHz
450-512MHz
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Number of channels |
128 channels (8 zones) |
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Type of emission |
F5121D: 16k0F3E, 11K0F3E, 4K00F1E/F1D
F6121D: 11K0F3E, 4K00FIE/F1D |
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Channel spacing |
F5121D: 6.25/15/30kHz, 6.25/12.5/25kHz
F6121D: 6.25/15/30kHz, 6.25/12.5kHz |
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PLL channel step |
2.5 kHz, 3.125 kHz (VHF) |
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Power supply requirement |
13.6V DC |
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Antenna impedance |
5OΩ (SO-239) |
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Operating temperature range |
-30°C to +60°C; -22°F to +140°F |
Current drain
Tx High (50W/45W)
Rx Max. audio
Standby |
F5121D
10A
1.2A
300mA |
F6121D
11
1.2A
300mA |
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Dimensions (proj. not included)
(W×H×D) |
150×40×167.5mm; 5.91×1.57×6.59in
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Weight |
1.1kg; 2.4lb |
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Transmitter |
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Output power (at 13.6V DC) |
F5121D: 50W, 25W, 5W (hi, L2, L1)
F6121D: 45W, 25W, 4.5W (Hi, L2, L1) |
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Max. frequency deviation |
±5.0 kHz (wide)
±2.5 kHz (narrow) |
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Frequency stability |
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Spurious emissions |
72dB min., 70dB min. |
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FM Hum and noise |
F5121D: 46/40dB typ. (Wide/Narrow)
F6121D: 40dB typ. (Narrow)
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Audio harmonic distortion
(AF 1kHz 40% deviation) |
3% typ. |
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External microphone connector |
600Ω (8-pin modular) |
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Receiver |
Sensitivity
(at 12dB SINAD)
(at 5% BER)
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0.25μV typ.
0.18μV typ.
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Adjacent channel selectivity |
F5121D: 80/70dB typ. (W/N), 65dB typ. (digital)
F6121D: 75/65dB typ. (W/N), 60dB typ. (digital) |
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Spurious response rejection |
70dB min. |
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Intermodulation rejection |
75dB typ. (W/N)
70dBμV emf typ. (digital) |
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Hum and noise |
45/40dB typ. (W/N) |
Audio output power (at 5% distortion)
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4 W typ. |
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External speaker connector |
2-conductor 3.5 (d) mm (1⁄8")⁄8Ω |
Measurements made in accordance with EAIA-152-C/204D or TIA-603.
Applicable U.S. Military Specifications and IP Rating
Also meets equivalent MIL-STD-810-C, -D and -E.