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Last modified 2023-07-13

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National NCX-3

A picture of National NCX-3

SPECIFICATIONS

GENERAL
Type:Amateur HF transceiver
Frequency range: 20-80 m in three bands
80 m:   3.48-4.02 MHz
40 m:   6.98-7.31 MHz
20 m:   13.88-14.42 MHz
Tuning steps:Analog / continuous
Frequency stability:400 Hz long-term after warmup
Mode:AM / SSB / CW
Channels / memory management: None
Repeater shift / offset:No
Power supply:External PSU (9-pin Jones connector)
Current drain / power consumption:RX: ? W
TX: Max ? W
Antenna impedance / connector:40-60 ohm / SO-239
Dimensions (W*H*D):346*154*295 mm (13.62*6.06*11.62")
Weight:? Kg (? lb)
Other features:VOX.




RECEIVER SECTION
Receiver system: Single conversion superheterodyne
IF: 5.2 MHz
Sensitivity:1 uV (10 dB S/N)
Selectivity:2.5 KHz (-6 dB)
Image rejection:
AF output power / speaker:2 W at ?% distortion / No internal speaker
External speaker connector:3.2 ohm




TRANSMITTER SECTION
RF output power:

Max Pwr
AM:30 W
SSB (PEP):120 W
CW:120 W
Modulation system:
Max FM deviation (Factory set):No FM
Spurious emissions:Better than -? dB
Microphone impedance / connector:Hi-Z / 3-pin (1/4")
Microphone input level:? mV




MISCELLANEOUS
Manufactured:USA, 1962-196x (Discontinued)
Additional info:New price 1962 in the US: $369
Related documents: User manual (2.1 MB)
RF finals: Two 6GJ5
Modifications and fixes:
Reviews:
Options / Accessories:
NCX-A
NCX-D
AC power supply and speaker
12 VDC power supply