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Last modified 2025-05-30

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Unimetrics Sandpiper-25/DX

A picture of Unimetrics Sandpiper-25/DX

SPECIFICATIONS

GENERAL
Type:Marine VHF transceiver
Frequency range: TX: 156-157.5 MHz
RX: 156-163 MHz
Tuning steps:Channelized
Frequency stability:±0.001% @ -20 to +60°C (-4 to +140°F)
Mode:FM
Channels / memory management: 12 regular
2 NOAA weather channels
XTAL controlled
Duplex shift / offset:
Power supply:13.8 VDC (Male 3-pin jack)
Current drain / power consumption:RX: Max 800 mA
TX: Max 5.5 A
Antenna impedance / connector:50 ohm / SO-239
Dimensions (W*H*D):? mm (?")
Weight:? Kg (? lb)
Other features:




RECEIVER SECTION
Receiver system: Double conversion superheterodyne
1st IF: 11.7 MHz
2nd IF: 455 KHz
Sensitivity:0.5 uV (20 dB quieting)
Squelch sensitivity:Less than 10 dB noise quieting level (Threshold)
Selectivity:70 dB (Adjacent channel)
Image rejection:70 dB
AF output power / speaker:4 W at 10% distortion / 4 ohm
External speaker connector:TS "Minijack" (3.5 mm)




TRANSMITTER SECTION
RF output power: High: 25 W
Low: 1 W
Modulation system:
Max FM deviation (Factory set):±5 KHz
Spurious emissions:Better than -80 dBc
Microphone impedance / connector:600-2000 ohm / Fixed spiral cord
Microphone input level:? mV




MISCELLANEOUS
Manufactured:Japan, 197x-197x (Discontinued)
Additional info:
Related documents:
Modifications and fixes:
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