Realistic Stereo-Mate AM/FM Headset Radio
(120-0104)                 Specifications             Faxback Doc. # 18173

General

Power Supply Voltage:....................3V (2-"AAA" or "IEC R-03" Battery)
Load Impedance:.....................................................32 Ohms
Output:............................................................... 5 mW
Modulation:..................................................AM:400 Hz, 30%
                                                  FM:400Hz, 75kHz Deviation
RF Input:...................................................AM:Loop Antenna
                               FM:Direct Input from 75-Ohm Impedance Source

AM Band

Item                            Freq. (kHz)   Unit    Nominal   Limit

Frequency Coverage              Low end       kHz     515       520
                                High end      kHz     1750      1705

Maximum Sensitivity             600           uV/m    500       1000
                                1000          uV/m    500       1000
                                1400          uV/m    500       1000

Sensitivity at 20 dB S/N        600           uV/m    1000      1500
                                1000          uV/m    1000      1500
                                1400          uV/m    1000      1500

Signal-to-noise Ratio
   at 5 mV/m                    1000          dB      35        30
IF Rejection                    600           dB      60        50
Image Rejection                 1400          dB      30        20
Bandwidth, -6 dB                1000          kHz               4-10
ACA 990 kHz/1010 kHz            1000          dB      24        18
Maximum Output Power            1000          mW      30        25
10% THD Output Power            1000          mW      25        20
AGC FOM at 100mV/m              1000          dB      45        40
Whistle Modulation
  2 x IF                        910           %       10        15
  3 x IF                        1365          %       10        15

Frequency Response -6 dB        1000          Hz      50        100
                                                      2000      1800
Oscillator Drop-Out Voltage     1000          V       1.8       2
Current Drain                   1000          mA      15        25
Noise Level at Volume Minimum                 mV      0.3       -

FM Band

Item                            Freq. (MHz)   Unit    Nominal   Limit

Frequency Coverage              Low end       MHz     87.0      88
                                High end      MHz     109       108

30 dB Quieting Sensitivity      90            uV      10        20
                                98            uV      10        20
                                106           uV      10        20

-3 dB Limiting Sensitivity      98            uV      3.16      6.3
Signal-to-Noise Ratio
   at 1 mV Input                98            dB      60        50
IF Rejection                    90            dB      70        50
Image Rejection                 106           dB      25        20
AFC Holding Range               98            kHz     300-700   -
Capture Ratio                   98            kHz     6         10
Alternate Channel Selectivity   98            dB      20        15
Overload                        98            %       1         7
Stereo Beacon Sensitivity       98            uV      10        13

Stereo Separation 100 Hz        98            dB      20        15
                  1 kHz         98            dB      25        20
                  10 kHz        98            dB      20        15

Pilot Modulation Sensitivity    98            %       5         7
Maximum Output Power            98            mW      30        25
10% THD Power Output            98            mW      25        20

NOTE:  Nominal specs represent the design specs.  All units should be
       able to approximate these--some will exceed and some may drop
       slightly below these specs.  Limit specs represent the 
       absolute worst condition that still might be considered
       acceptable; in no case should a unit fail to meet limit specs.


(cd 10/17/95)