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Last modified 2023-06-07

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Hammarlund Four-20

A picture of Hammarlund Four-20

SPECIFICATIONS

GENERAL
Type:Amateur HF transmitter
Frequency range:?-? m
Tuning steps:
Frequency stability:? ppm
Mode:CW (AM option)
Channels / memory management: ? regular
XTAL controlled
Power supply:Mains
Current drain / power consumption:Max ? W
Antenna impedance / connector:? ohm / ?
Dimensions (W*H*D):? mm (?")
Weight:? Kg (? lb)
Other features:




TRANSMITTER SECTION
RF output power:

Pwr
CW:20 W
AM option:? W
Modulation system:
Max FM deviation (Factory set):No FM
Spurious emissions:Better than -? dB
Microphone impedance / connector:? ohm / ?-pin
Microphone input level:? mV




MISCELLANEOUS
Manufactured:USA, 19xx-19xx (Discontinued)
Additional info:
Related documents:
Modifications and fixes:
Reviews:
Options / Accessories:
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