Atec Amplifier-Research-75A250 User Manual
Page 2
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SPECIFICATIONS
Model 75A250
POWER OUTPUT, CW
Nominal.......................................................................................100 watts
Minimum .....................................................................................75 watts
Linear @ 1dB compression .......................................................50 watts minimum
FLATNESS .....................................................................................
± 1.0 dB maximum
FREQUENCY RESPONSE ...........................................................10 kHz - 250 MHz instantaneously
INPUT FOR RATED OUTPUT ....................................................1.0 milliwatt maximum
GAIN (at maximum setting) ..........................................................49 dB minimum (See Model Configurations)
GAIN ADJUSTMENT (continuous range)...................................18 dB minimum
INPUT IMPEDANCE ....................................................................50 ohms, VSWR 1.5:1 maximum
OUTPUT IMPEDANCE ................................................................50 ohms, VSWR 2.0:1 maximum
MISMATCH TOLERANCE * ........................................................100% of rated power without foldback. Will operate
without damage or oscillation with any magnitude
and phase of source and load impedance.
MODULATION CAPABILITY ......................................................Will faithfully reproduce AM, FM, or pulse modulation
appearing on the input signal
NOISE FIGURE (above 1.0 MHz) ...............................................6 dB typical
HARMONIC DISTORTION ..........................................................Minus 20 dBc maximum at 50 watts
THIRD ORDER INTERCEPT POINT ..........................................57 dBm typical
PRIMARY POWER ........................................................................90-135/180-270 VAC
47 to 63 Hz, single phase 400 watts maximum
RF CONNECTOR (Type)..............................................................Type N female
(Location)........................................................See Model Configurations
COOLING.......................................................................................Forced air (self contained fans)
* See Application Note #27
MODEL CONFIGURATIONS
MODEL
NUMBER
RF CONNECTOR
LOCATION
GAIN
CONTROL
INSTRUMENT
CASE
WEIGHT
SIZE
(W x H x D)
75A250
Front Panel
Yes
Yes
15.9 kg (35.0lb)
50.3 x 15.5 x 30.0 cm
19.8 x 6.1 x 11.80 in
75A250M1
Rear Panel
Yes
No
11.4 kg (25.0lb)
48.3 x 13.5 x 29.3 cm
19.0 x 5.3 x 11.5 in
75A250M2
Front Panel
No
Yes
15.9 kg (35.0lb)
50.3 x 15.5 x 30.0 cm
19.8 x 6.1 x 11.80 in
75A250M3
Rear Panel
Yes
Yes
15.9 kg (35.0lb)
50.3 x 15.5 x 30.0 cm
19.8 x 6.1 x 11.80 in
75A250M4
Front Panel
Yes
No
11.4 kg (25.0lb)
48.3 x 13.5 x 29.3 cm
19.0 x 5.3 x 11.5 in