National Company HRO-500

General characteristics

HAM bands

?

Frequency stability

?

Tuning steps

?

Memories

?

Receiver

RX-range

0.005-30 MHz (60×500 kHz bands)

Modulations

AM   CW   SSB   FSK  

Sensitivity

0.5-30 MHz:
AM: <2 µV (10 dB S/N)
SSB/CW: <1 µV (10 dB S/N)
0.005-0.5 MHz:
25-200 µV (10 dB S/N)

Selectivity

?

Filters

?

Receiver system

Triple conversion superheterodyne

IF-frequencies

1st: ? MHz
2nd: ? MHz
3rd: 230 KHz

Image rejection

0.5-30 MHz: 80 dB average, 50 dB minimum

Audio output

?

Connections

Antenna

Hi-Z

Impedance

50 Ω

Other

-

Electrical

Power requirements

11-16V DC or mains 115/230 VAC

Current drain RX

?

TX

-

Physical

Dimensions (w×h×d)

420 × 195 × 320 mm (16.54 × 7.68 × 12.60 in)

Weight

14.50 kg (32.0 lbs)

Form factor

Base Station

Manufactured

Between 1964 and 1972 in USA

Other features

Usage

Amateur / Ham radio operators

Features + options

-

Accessories

-

RigReference ID

3617

MPN

NATIONAL-COMPANY-HRO-000500

Manuals, diagrams and brochures

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New and second-hand prices

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