RECEIVER SPECIFICATIONS
CIRCUIT DESIGN: Front end design provides
exceptional immunity to overload and cross
modulation, matching or out performing the best
vacuum tube designs. Signals are converted directly
to the 5520 kHz I.F. without preamplification. Con-
verter and product detector are double balanced diode
rings. IC's are employed in I.F. and AF stages.
SENSITIVITY: Requires less than 0.4 microvolts
for a 10 db signal-plus-noise to noise ratio on 160, 80,
40, and 20 meter bands; 0.4 microvolts on 15 meters;
and 0.6 microvolts on 10 meters. SELECTIVITY:
Crystal Ladder Filter, 8 poles. Bandwidth: 2.7 kHz @
6 db, 4.3 kHz @60db,9.2kHz@ 120 db!! Ultimate
rejection more than 130db!! Shape Factor 1.6.
IMAGE REJECTION: More than 60 db.
INTERNAL SPURIOUS: Less than equivalent 1
microvolt signal. AGC CHACTERISTICS: Audio
output constant within 4 db with signal
variation from 5 microvolts to more than 3 volts.
OVERALL GAIN: Requires less than 1 microvolt
signal for 0.5 watts audio output. (CW carrier, 1000
Hertz heterdyne).
AUDIO FIDELITY: 300 to 3000 Hertz, plus or
minus 3 db. INTERNAL SPEAKER: 3 in., 3.2 ohm,
.68 oz. magnet. Rear jack permits plug in of external
speaker or headphones. Headphones of 500 to 600
ohms are recommended. Headphones of a higher
impedance may be used, but will require a higher A.F.
Gain setting. Lower impedance headphones will
require a lower A.F. Gain setting. When transceiver is
plugged into the AC power supply console, internal
speaker is disconnected automatically, and front
facing speaker on console becomes operative.
METER: Reads "S" units from 1 to 9, plus lOtoSOdb.
CALIBRATOR: Provides 100 kHz check points for
accurate dial setting.
TRANSMITTER SPECIFICATIONS
CIRCUIT DESIGN : Broadband design eliminates
transmitter tuning. Single conversion from I.F. to
output frequency produces minimum spurious and
mixing products. 2 section low-pass filters on each
band provide harmonic suppression equal to
commercial standards. Includes ALC and infinite
SWR protection.
FREQUENCY CONTROL: Internal VFO
automatically transmits on exactly the same frequency
that is being received. Rear socket provides for plug-
in of external VFO or crystal oscillator accessory for
separate control of transmit and receive frequencies,
or for network and MARS operation.
POWER RATING: 200 watts P.E.P. input, and CW
input, (with 50 ohm resistive load and 13.6 volt D.C.
supply) on 160,80,40,20,and 15 meter bands; 120W
on 10 meter band. Power output: 80 minimum P.E.P.
and CW on 160, 80, 40, 20, and 15 meter bands; 50
watts minimum on 10 meter band.
RTTY /SSTV POWER RATING:
Approximately 90 watts P.E.P input (dependent
directly on ventilation of heat sink).
EMISSION : SSB: Lower sideband on 40, 80, and
160 meters. Upper sideband on 20, 15, and 10 meters
with Sideband Selector switch in NORM position.
Opposite with switch in OPP position. CW: offset
frequency.
UNWANTED SIDEBAND: More than 60 db down
at 1000 Hertz AF input.
CARRIER SUPPRESSION: More than
50 db down.
THIRD ORDER DISTORTION:
Approximately 30 db below peak power.
HARMONIC OUTPUT: More than 35 db below
peak power.
SUPRIOUS AND IMAGE OUTPUT:
More than 40 db below peak power.
