PRO-22
(200-0103)                 Specifications             Faxback Doc. # 39631


CHANNELS OF OPERATION:..........Six-as determined by any one of 6 crystals
                                          operating in the frequency range

FREQUENCY RANGE:.............................30 to 50 MHz, 118 to 136 MHz,
                                            144 to 174 MHz, 450 to 512 MHz

FREQUENCY COVERAGE:..................VHF Lo  6 MHz for maximum sensitivity
                                                        (40 MHz +/- 3 MHz)

                                VHF Aircraft 6 MHz for maximum sensitivity
                                                       (127 MHz +/- 3 MHz)

                                      VHF Hi 8 MHz for maximum sensitivity
                                                       (153 MHz +/- 4 MHz)

UHF.........................................30 MHz for maximum sensitivity
                                                      (480 MHz +/- 15 MHz)

SENSITIVITY:.............Better than 1 microV at FM Band and better than 2
                                      microV at AM Band for (S+N)/N= 20 dB

SELECTIVITY................................................-6 dB +/- 9 kHz
                                                         -50 dB +/- 15 kHz

MODULATION ACCEPTANCE:...........................................+/- 7 kHz

I.F.:.................................................10.7 MHz and 455 kHz

FILTERS:................10.7 MHz Crystal Filter and 455 kHz Ceramic Filter

SQUELCH SENSITIVITY:......................Variable from less than 1 microV
                              at FM Band and less than 2 microV at AM Band

SCANNING SPEED:.........................................6 Channels/seconds

DELAY TIME:.................................................1 to 3 seconds

AUDIO POWER:.........................................................200mW

POWER REQUIREMENTS:.............................+6V DC, four AA batteries,
                              or a suitable adapter (negative ground only)

    Current drain:........................................45mA (Squelched)
                                          130 mA (full volume unsquelched)

SEMICONDUCTOR COMPLEMENT:............................5 Integrated Circuits
                                                    16 Silicon Transistors
                                                                 19 Diodes
                                           6 Light Emitting Diodes (LED's)

SPEAKER:.................2" (5 cm), 16-ohm, Permanent Magnet, dynamic type

ANTENNAS:.....................................Telescopic and flexible type

CRYSTAL REQUIREMENTS:........................Standard HC-25/U 3rd overtone

(br/km-05/20/1997)

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