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Atec Amplifier-Research-75A250 User Manual

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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