The sets were produced in the mid-fifties and were regarded as obsolescent by the Army in 1966.
The transmitter is capable of cw and am transmission. (mcw also on receive.)
The receiver is continuously tuneable over the frequency range of 540 kcs to 16 m/cs.
Specifications are as follows:
Band A 1.6-3.0 mc/s Band B 3.0-5.4 mc/s Band C 5.0-10.0 mc/s.
Crystal control - Frequency selected from front panel.
AWA Type D crystals - similar to CRl8/U, HC-6U.
Output: 8 watts at 2.0 mc/s, 5 watts at 10.0 mc/s.
Output Impedance:17-50 ohms OR 600 ohms - both unbalanced.
Emission Types: CW - manual, AM - via PTT function.
Band A 550-1600 kc/s Band B 1.6-5.0 mc/s Band C 5.0-16.0 mc/s
Sensitivity: 3 microvolts, mod 30 % at l000c/s gives 50mw output.
Selectivity: Not more than 10db at 10 kc/s, not less than 60db at 40kc/s.
Image Ratio: 200:1 at 4.9 mc/s 50:1 at l5 mc/s.
Power Output: Appx. 2 watts at 10% distortion. (3 ohm speaker)
Power Supply:12 volts negative earth. Rx 3A, Tx 7A dc.
Overall Dimensions: Height l3in, Width 2l.5in, Depth l4.5in, Weight 70lbs.
The military version of the Australphone is fitted with a protective guard at the front.
© Ian O'Toole, 2009. Page created: 28/04/03 Last updated: 4/12/2009