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Product Specifications


Specifications for SCA-TM Subcarrier Tuner

Physical specifications

Cabinet

Electroplated steel bottom and painted aluminum top
Mounting Table top or 1 inch rack mount
Size 9   x 6 x 1   inches
Weight 2 pounds for tuner; pound for AC Adapter
Features Three independently adjustable outputs, switchable subcarriers, adjustable low-pass filter, main and subcarrier squelch
Safety No lethal or hazardous voltage present within the receiver.   There is no shock or fire hazard under any circumstances


        Electrical specifications
    

All tests made with 10% injection to baseband (7.5 kHz deviation) at 67 kHz.  Measurements are referenced to 6 kHz deviation of subcarrier.  Tone control set for treble.  Volume control set approximately full.

Specification Test parameter Min Typ Max Unit
Frequency Response Ref 400 Hz   0   db
  25 Hz -1 0   db
  3500 Hz -2 0   db
  5000 Hz -3 -1   db
Deemphasis Standard 120 150 180

usec

Distortion

1000 Hz

 

2.5

4.0

percent
Crosstalk

1000 Hz main

40

50

  db
Sensitivity

30 db quieting

 

10

20 uv
Noise

1.0 mv rf input

 

55

50 db
Audio out (balanced)

Into 8 ohms

 

750

1000 mw
 

Into 600 ohms

 

13

  dbm
Audio out (unbalanced)

Into 600 ohms

   

13

  dbm
Adjustable filter

Cutoff

500

  5000 Hz
 

Rolloff

 

10

  db/octave

All ComPol, Inc. receivers utilize our patented superhetrodyne SCA demultiplexer.   This technology replaces coil-capacitor filters with ceramic filter elements to guarantee the highest possible fidelity with minimum distortion and out-of-band noise.   Also, this results in minimal aging.  (Patent number 5,023,933)

Note:  The SCA-TM are made in the United States of America.  Most major   components are also made in the USA.


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