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Station Monitor
Amateur Base Station Antenna

General

HAM bands 160m  80m  60m  40m  30m (WARC)  20m  17m (WARC)  15m  12m (WARC)  11m (CB)  6m  10m  2m  70cm 
Freq. stability ? ±2.5 p.p.m. @ -20 to +60°C (-4 to +140°F)
Tuning steps ? 5 / 6.25 / 8.33 / 10 / 12.5 / 15 / 20 / 25 / 50 / 100 kHz

Receiver

RX-range 1.8-54 MHz 108-550 MHz
Modulations All mode   FM   N-FM   C4FM  
Sensitivity 1/4" vertical deflection at 10 W (80-6m)
3/4" vertical deflection at 100 W (80-6m)
1/4" vertical deflection at 100 W (160m)
AM (10 dB S/N)
108-137 MHz: 0.8 µV
300-336 MHz: 0.8 µV

FM (12 dB SINAD)
137-150 MHz: 0.2 µV
150-174 MHz: 0.25 µV
174-222 MHz: 0.3 µV
222-300 MHz: 0.25 µV
336-420 MHz: 0.25 µV
420-470 MHz: 0.2 µV
470-550 MHz: 0.2 µV

DV/Fusion (BER 1%)
2 m/70 cm: 0.19 µV
Selectivity ? 12 kHz (-6 dB)
30 kHz (-60 dB)
Filters ? ?
Receiver system ? Double conversion superheterodyne
IF-freqs. ? 1st: 56.75 MHz (Main RX) - 55.85 MHz (Sub RX)
2nd: 450 kHz
Image rejection ? ?
Audio output ? 3 W (Main unit), 6 W (Control head) at 10% distortion / 8 ohm

Transmitter

TX-range ? 144-146 / 430-440 MHz (Europe)
144-148 / 430-450 MHz (USA)
Modulations All mode   FM   N-FM   C4FM  
RF-output ? 5 / 25 / 55 W

Connections

Antenna SO-239 SO-239
Impedance 50/75Ω 50Ω
Other - -

Electrical

Power req. Mains 11.7-15.8 V DC
Current RX 22 W max 500 mA
TX ? 11 A

Physical

Manufactured Between 1985 and 198x in USA Between 2025 and 20xx in Japan
Dimensions 286 × 111 × 308 mm
(11.26 × 4.37 × 12.13 in)
156 × 64 × 59 mm
(6.14 × 2.52 × 2.32 in)
Weight 4.80 kg (10.6 lbs) 1.40 kg (3.1 lbs)
Form factor Base Station Base Station

Other features

Memories ? 1053 channels in 1 bank(s)
Usage Amateur / Ham radio operators Amateur / Ham radio operators
Features ? ?
Accessories ? ?
MPN HEATHKIT-HO-005404 YAESU-FTM-000510-ASP