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Last modified 2014-03-17

National HRO-600

A picture of National HRO-600

SPECIFICATIONS

GENERAL
Type:HF receiver
Frequency range:0.016-30 MHz in thirty 1 MHz bands
Tuning steps:Continuous
Mode:AM/SSB/CW
Channels/memory management:None
Power supply:Mains (115/240 VAC)
Current drain/power consumption:
Antenna impedance/connector:50 ohms or Hi-Z selectable / SO-239
Dimensions (W*H*D):432*133*386 mm (17*5.25*15.5")
Weight:18.1 Kg (40 lbs)
Other features:




RECEIVER SECTION
Receiver system:Single conversion superheterodyne (below 1 MHz)
IF: 5 MHz
Double conversion superheterodyne (above 1 MHz)
1st IF: 55 MHz
2nd IF: 5 MHz
Sensitivity:0.38 uV (10 dB (S+N)/N)
Selectivity:
Image rejection:
AF output power/speaker:1 W at 10% distortion / ? ohms
External speaker connector:




MISCELLANEOUS
Manufactured:USA, 1970-197x (Discontinued)
Additional info:Motorized preselector
New price 1970 in the US: $5600.00
Related documents:
Modifications:
Options/Accessories:
601
602
603
610
620
640
650
660
Tunable VFO module with nixie tube type display
Thumbwheel-operated frequency selector
Crystal oscillator
DC power supply
Noise blanker
ISB adapter
FSK converter
Diversity unit