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Amateur Base Station Antenna
Marine VHF | DSC | AIS | WiFi

General

HAM bands 2m  70cm  None 
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 VHF Marine channels

Receiver

RX-range 108-550 MHz 156.300–161.925 MHz
Modulations FM   N-FM   C4FM   FM  
Sensitivity 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 5W producing 81 dB @ 1m

Transmitter

TX-range 144-146 / 430-440 MHz (Europe)
144-148 / 430-450 MHz (USA)
156.025–161.425 MHz
Modulations FM   N-FM   C4FM   FM  
RF-output 5 / 25 / 55 W VHF: 25W, 1W AIS: 5W

Connections

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

Electrical

Power req. 11.7-15.8 V DC 9.6–31.2 V DC
Current RX 500 mA ?
TX 11 A ?

Physical

Manufactured Between 2025 and 20xx in Japan Between 2026 and 20xx in UK
Dimensions 156 × 64 × 59 mm
(6.14 × 2.52 × 2.32 in)
?
Weight 1.40 kg (3.1 lbs) 800 gr (1.8 lbs)
Form factor Base Station Mobile

Other features

Memories 1053 channels in 1 bank(s) ?
Usage Amateur / Ham radio operators Marine / Navy
Features ? 5 W SODTMA AIS
NMEA 0183 / NMEA 2000 Ed 3.101
Wireless LAN standards IEEE802.11 b/g/n
Accessories ? ?
MPN YAESU-FTM-000510-ASP EM-TRAK-X000100