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Last modified 2021-01-19

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Icom IC-R70

A picture of Icom IC-R70

SPECIFICATIONS

GENERAL
Type:HF receiver
Frequency range:0.1-30 MHz
Tuning steps:10 / 100 Hz, 1 KHz
Frequency stability:Less than 50 Hz after 1 hr warmup @ stable surrounding temperature
Less than 500 Hz after 1 hr warmup @ -10 to +60C (14 to 140F)
Mode:AM / SSB / CW / RTTY (FM option)
Channels/memory management:No
Power supply:Mains: 100/117/200/220/235 VAC 10% (3-pin IEC C14 connector)
or 12-14 VDC with CK-70 option
Current drain/power consumption:Max 30 VA
Antenna impedance/connector:50 ohm / SO-239
Hi-Z / RCA/Phono (0.1-1.6 MHz)
Dimensions (W*H*D):286*111*276 mm (11.25*4.37*10.87")
Weight:7.4 Kg (16.31 lb)
Other features: NB. Passband tuning. Notch filter. Dimmer. RIT. Tone control.
1st IF output jack. Converter input jack. Attenuator.




RECEIVER SECTION
Receiver system: Quadruple conversion superheterodyne (AM/SSB/CW/RTTY)
1st IF: 70.45 MHz
2nd IF: 9.01 MHz
3rd IF: 455 KHz
4th IF: 9.01 MHz
Triple conversion superheterodyne (FM)
1st IF: 70.45 MHz
2nd IF: 9.01 MHz
3rd IF: 455 KHz
Sensitivity: AM (10 dB S+N/N)
0.1-1.6 MHz: 3 uV
1.6-30 MHz: 0.5 uV
FM (12 dB SINAD), with FM option
1.6-30 MHz: 0.3 uV
SSB/CW/RTTY (10 dB S+N/N)
0.1-1.6 MHz: 1 uV
1.6-30 MHz: 0.15 uV
Selectivity: AM: 6 KHz (-6 dB), 18 KHz (-60 dB)
FM: 15 KHz (-6 dB), 25 KHz (-60 dB), with FM option
SSB/CW/RTTY: 2.3 KHz (-6 dB), 4.2 KHz (-60 dB)
CW-N/RTTY-N: 500 Hz (-6 dB), 1.5 KHz (-60 dB)
Image rejection:
AF output power/speaker:2 W at ?% distortion / 8 ohm
External speaker connector:3.5 mm, 8 ohm




MISCELLANEOUS
Manufactured:Japan, 1982-1983 (Discontinued)
Additional info:
Related documents: User manual (2.5 MB)
Service manual (7.8 MB)
Modifications and fixes:
Reviews:
Options/Accessories:
CK-70
EX-257
FL-44
FL-63
SP-3
DC option. 12-14 VDC
FM unit
SSB filter, 2.4 KHz. IF: 455 KHz
CW narrow filter, 250 Hz. IF: 455 KHz
External speaker
A rear picture of Icom IC-R70