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Heathkit Model HD-1422 Antenna Noise Bridge
This instrument is used to determine how well an antenna is matched to
the transmitter. The instrument works by generating a tone-modulated
broadband noise signal and coupling it to an impedance bridge. Using a
receiver as an indicator, the impedance bridge measures the resistive
and reactive components of the antenna.
Below are the specifications for this instrument:
Front Panel Range: Resistance: 0 - 200 ohms; Capacitance: +/- 60 pF
Operating Range: 1 - 30 MHz Useful Range: 1 - 100 MHz Power
Requirements: Internal 9 V battery (#NEDA 1604) or external 9-
11 VDC @ 45 mA Input Connectors: SO239 coaxial sockets Overall
Dimensions: 2 1/4 in high, 5 1/8 in W, 5 in deep - Price includes unit
and ORIGINAL Heathkit Manual $50 (+ shipping). PayPal or USPS Money
Jack WM0G 303-587-0993
This was marked by the originator on 2013-08-23 (UTC) as being sold.