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Last modified 2023-07-13

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Panasonic RF-4900

A picture of Panasonic RF-4900

SPECIFICATIONS

GENERAL
Type:HF/VHF receiver
Frequency range: 0.52-30 MHz / 88-108 MHz in 10 bands:
MW:   0.52-1.6 MHz
SW1:   1.6-3.0 MHz
SW2:   3.0-7.0 MHz
SW3:   7.0-11.0 MHz
SW4:   11.0-15.0 MHz
SW5:   15.0-19.0 MHz
SW6:   19.0-23.0 MHz
SW7:   22.0-26.0 MHz
SW8:   26-30 MHz
FM:   88-108 MHz
Tuning steps:Continuous
Frequency stability:Less than 500 Hz (SW2-8), after 30 minutes warmup
Mode:AM / SSB / CW / WFM
Channels / memory management:None
Power supply:Mains: 110-125 VAC
or 12 VDC (Eight LR20 / D batteries)
or 12 VDC external (Barrel connector)
Current drain / power consumption:? mA
Antenna impedance / connector: 50 ohm / SO-239
Hi-Z / ?
Also built-in ferrite bars for LW/MW
and telescopic whip for FM
Dimensions (W*H*D):482*200*354 mm (18.98*7.87*13.94")
Weight:9.1 Kg (20 lb)
Other features:Blue fluorescent frequency display. Battery- and S-meter.




RECEIVER SECTION
Receiver system: Single conversion superheterodyne (MW/SW1/WFM)
1st IF: 455 KHz (MW/SW1) - 10.7 MHz (FM)
Double conversion superheterodyne (SW2-8)
1st IF: 2 MHz
2nd IF: 455 KHz
Sensitivity: AM/SSB/CW (10 dB S/N)
MW: 60 uV/m
SW1: 1 uV
SW2: 1.3 uV
SW3: 0.8 uV
SW4: 1.2 uV
SW5: 1.2 uV
SW6: 1.2 uV
SW7: 2.0 uV
SW8: 1.4 uV
WFM (26 dB S/N)
3 uV (26 dB S/N)
Selectivity: WFM:
400 KHz (-35 dB)
800 KHz (-70 dB)
AM Wide:
5 KHz (-6 dB)
30 KHz (-60 dB)
AM Narrow:
3.4 KHz (-6 dB)
12 KHz (-60 dB)
Image rejection:
AF output power / speaker:2 W at ?% distortion / 4 ohm
External speaker connector:




MISCELLANEOUS
Manufactured:Japan, 1979-1983 (Discontinued)
Additional info:This is the US version of DR-49.
Related documents: User manual (2.6 MB)
Service manual (4.8 MB)
Modifications and fixes:
Reviews:
Options / Accessories:
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