SECTION 1 - DESCRIPTION
A. GENERAL
DESCRIPTION
The SBX-11A is a portable, solid state, single sideband transceiver, with self contained batteries
and microphone.
The entire unit is enclosed in a strong weather resistant aluminum case, with a hinged battery
section and removeable cover.
It is capable of operating on four channels in single or crossband simplex, over a range of 1.6 to 8
MHz.
Various battery combinations are available of the non-rechargeable primary or rechargeable
secondary types to allow up to 50 hours of operation. Optional battery charger accessories are
available to facilitate charging the batteries from any suitable AC or DC source.
The SBX-11A has been designed for the utmost in simplicity of operation and care. All controls,
metre, speaker and microphone are accommodated on the front panel. A cover with carrying
handle is supplied to protect the entire front panel when the set is not being operated or when in
transit.
Internal circuitry is of the utmost simplicity, employing silicon type transistors and the latest
silicon integrated circuits. Plug-in tuning coils, numerous test jacks and simple circuit board
design ensure easy tuning and maintenance.
Some noteable features are: The metre is automatically switched to indicate battery condition or
power output. A special ALC control circuit allows efficient operation on VSWR of up to 2:1 or
antenna loads of from 25 to 100 Ohms without transmitter adjustments. The set is protected
against reversed polarity or excessive voltage from the power source. A tough microphone
designed to fit the hand is permanently connected to avoid loss.
Accessories include: Chargers to charge the batteries from 115/230 VAC or 13.6 VDC power
sources, portable whip and wire antennas.
