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| Super Heterodyne Receiver |
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| SAILENT FEATURES OF SUPERHET Rx FRONT END |
| Frequency Range |
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8 - 18GHz |
| LO Frequency |
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8 - 18GHz |
| IF frequency |
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160MHz |
| IF Bandwidth (3 bit) |
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Selectable (3dB BW) |
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2MHz ±100 KHz, 5MHz ±500 KHz
10MHz ±500 KHz, 20MHz ±1MHz
40MHz ± 2MHz |
Frequency tuning Accuracy over
the Temp. Range 0 to 55°C |
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| Without Synchronizer |
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Better than ± 35MHz |
| With Synchronizer |
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better than ±50 KHz |
Freq. Stability over temp. Range
-20 to 55°C |
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± 2.5 PPM (±1ppm aimed) |
| RF to IF Gain |
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23dB (nom.) |
| Gain Variation |
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± 2.5dB (max) |
| Noise Figure |
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12.5dB (max) |
| Dynamic Range |
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60dB (min) |
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Sensitivity with 40MHz bandwidth
and 12dB (S/N) |
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| 500 mV video O/P at Log IF O/P Port |
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-70dBm (min) |
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(1usec pw/1msec P.R.F. test condition) |
| 1dB Output compression point |
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+ 15dBm (min) |
| Image Rejection |
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>70dB |
| Two tone Third Order Intercept |
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| Dynamic Range |
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50dB (min) |
| Local Oscillator Re-Radiation |
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-80dBc (Max) |
| Auxiliary LO Output |
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0dBm ± 3dB |
| Input V.S.W.R |
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2:1 (max) |
Output V.S.W.R
(only for IF output) |
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2:1 (max) @160MHz |
| Full band switching /tuning speed |
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10 ms (max) |
| IF Attenuation Range |
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0 – 60dB |
| Resolution |
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1dB |
| Accuracy |
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±0.5dB |
| RF Attenuation Range |
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0, 10, 20, 30dB |
| Resolution |
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10dB |
| Accuracy |
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±1.0dB |
| Video Output Levels |
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| Log Video |
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0.2 – 2.5 Volts |
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| Linear Video |
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0.2 – 2.5 Volts (-70dBm to -50dBm),
±5% deviation from Linear response. |
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FM video for FM deviation
of ± 20MHz |
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± 2.5 Volts (80% to be Linear)
±5% deviation |
Min. pulse handling of video
Circuits Including FM |
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50ns to 150µs
(Switching time 20nsec in 40MHz BW). |
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| Controls: |
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| Power Supply |
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+15 V DC, 2.0 AMPS |
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-15 V DC, 3.5 AMPS |
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+5 V DC, 1.5 AMPS |
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+28 V DC, 1 AMP Normal; Surge 5 AMPS |
| Indication |
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Frequency Lock/LED indication on
front panel. |
| Mechanical specifications |
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| Size |
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187 x 240 x 206 mm |
| Weight |
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< 7.5 Kgs |
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