TRANSMITTERS & TRANSCEIVERS

Type 625 Transmitter

DATE OF DESIGN

FREQUENCY RANGE

R.F. 47 to 54.4 MHz with six spot frequencies- three channels common to both types:
Type A - 47.0, 47.2, 47.4, 47.6, 48.8, 54.2 MHz.
Type B - 47.0, 47.4, 47.6, 47.8, 52.6, 54.4 MHz.

POWER SUPPLIES

1.25 V Dry battery. Battery life approximately 18 hours under normal conditions.

RANGE IN MILES.

1 to 2 miles over open country, between sets fitted with 4ft rod aerials.
3 to 5 miles, betwen sets fitted with remote 10ft aerials.

TYPE OF SET (VALVES USED)

WAVEFORM

CW.

ASSOCIATED WAVEMETER.

METHOD OF PRODUCING OSCILLATIONS

WHERE USED/FITTED

A short range, lightweight, sub-miniature VHF FM transmitter-receiver for voice communications.

FURTHER READING

PHOTOS, SCHEMATICS, DOCUMENTS

Details of Transmitter Type 625

NOTES.

BR 1193.