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Last modified 2019-10-18

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National Panasonic DR-49 (RF-4900LBS)

A picture of National/Panasonic DR-49 (RF-4900LBS)

SPECIFICATIONS

GENERAL
Type:HF/VHF receiver
Frequency range: 0.145-30 MHz / 88-108 MHz in 11 bands:
LW: 0.145-0.4 MHz
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:? ppm
Mode:AM/SSB/CW/WFM
Channels/memory management:No
Power supply:Mains: 110-125 / 220-240 VAC
or 12 VDC external (Barrel connector, center negative)
or eight internal R20/D batteries
Current drain/power consumption:Less than 10 W @ mains
? mA @ 12 VDC
Antenna impedance/connector:50 ohm / 1*SO-239
Hi-Z / 2*?
75 ohm / 1*?
Dual ferrite bar antennas and a telescopic whip
Dimensions (W*H*D):482*200*354 mm (18.98*7.87*13.94")
Weight:8 Kg (17.64 lbs), without batteries
Other features:Blue fluorescent display




RECEIVER SECTION
Receiver system: Single conversion superheterodyne (WFM/LW/MW/SW1)
IF: 10.7 MHz (WFM), 455 KHz (LW/MW/SW1)
Double conversion superheterodyne (SW2-8)
1st IF: 2 MHz
2nd IF: 455 KHz
Sensitivity: AM (10 dB S/N)
0.55-1.6 MHz: 60 uV
5-30 MHz: 1.1-1.4 uV
SSB (10 dB S/N)
5-30 MHz MHz: 0.6-1 uV
Selectivity:
Image rejection:
AF output power/speaker:2 W at ?% distortion / 4 ohm
External speaker connector:3.5 mm, 4-8 ohm




MISCELLANEOUS
Manufactured:Japan (By Matsushita), 1979-1983 (Discontinued)
Additional info: This is the european version of RF-4900 with the added
longwave band.
Related documents:
Modifications:
Options/Accessories:
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A picture of National/Panasonic DR-49 (RF-4900LBS)