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Last modified 2025-09-11

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Ascom SE540

A picture of Ascom SE540

SPECIFICATIONS

GENERAL
Type:Professional land mobile VHF or UHF transceiver
Frequency range
depending on version:
68-88 MHz
146-174 MHz
170-225 MHz
400-430 MHz
440-470 MHz
Tuning steps:Channelized (Programmable in ? KHz increments)
Frequency stability:? ppm
Mode:FM
Channels / memory management: 20 regular
Duplex shift / offset:Programmable
Power supply:13.8 VDC
Current drain / power consumption:RX: Max 350 mA
TX: 2.5 A (10 W), 6 A (25 W)
Antenna impedance / connector:50 ohm / ?
Dimensions (W*H*D):168*48*171 mm (6.61*1.89*6.73")
Weight:1.2 Kg (2.64 lb)
Other features:




RECEIVER SECTION
Receiver system: Double conversion superheterodyne
1st IF: ? MHz
2nd IF: ? KHz
Sensitivity:0.35 uV (12 dB SINAD)
Squelch sensitivity:
Selectivity:
Image rejection:>70 dB
AF output power / speaker:? W at ?% distortion / ? ohm
External speaker connector:




TRANSMITTER SECTION
RF output power: 1-12, 20 or 25 W (Depending on version)
Modulation system:
Max FM deviation (Factory set):±5 KHz
Spurious emissions:Better than -? dB
Microphone impedance / connector:? ohm / ?-pin
Microphone input level:? mV




MISCELLANEOUS
Manufactured:1990-199x (Discontinued)
Additional info:
Related documents:
Modifications and fixes:
Reviews:
Options / Accessories:
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