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Last modified 2023-01-22

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Collins 75S-3A

A picture of Collins 75S-3A

SPECIFICATIONS

GENERAL
Type:HF receiver
Frequency range: 3.4-30 MHz (Twentyfour 200 KHz ranges)
XTAL's for the following twelve ranges were installed from factory:

3.4-3.6 MHz
3.6-3.8 MHz
3.8-4.0 MHz
7.0-7.2 MHz
7.2-7.4 MHz
14.0-14.2 MHz
14.2-14.4 MHz
14.8-15.0 MHz
21.0-21.2 MHz
21.2-21.4 MHz
21.4-21.6 MHz
28.5-28.7 MHz
Tuning steps:Continuous
Frequency stability:Within 100 Hz after warmup (No temperature reference)
Mode:AM / SSB /CW
Channels / memory management: None
Power supply:Mains: 115 VAC
Current drain / power consumption:Less than 90 W
Antenna impedance / connector:50-75 ohm / Phono (RCA)
Dimensions (W*H*D):375*197*318 mm (14.75*7.75*12.5")
Weight:9 Kg (20 lb)
Other features:




RECEIVER SECTION
Receiver system: Double conversion superheterodyne
1st IF: 2.955-3.155 MHz
2nd IF: 455 KHz
Sensitivity:SSB: 0.5 uV (10 dB S+N/N)
Selectivity: AM
4.5 KHz (-6 dB)
25 KHz (-60 dB)
SSB
2.1 KHz (-6 dB)
4.2 KHz (-60 dB)
CW
200 Hz (-6 dB)
1.25 KHz (-60 dB)
Image rejection:50 dB
AF output power / speaker:1.8 W at ?% distortion / No internal speaker
External speaker connector:Phono (RCA), 4 ohm




MISCELLANEOUS
Manufactured:USA, 196x-196x (Discontinued)
Additional info:
Related documents:User manual v4 (6.2 MB)
Modifications and fixes:
Reviews:
Options / Accessories:
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