PA3I

GRC9 - Schema's

GRC9 SCHEMA's

VOEDING

Dynamotor - DL

Dynamotor - FR

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SEM-25

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Power Switch Settings (Ref. G)

AUS:                   Off

EMPF:                 Receive-only

SENDEN KLEIN:  Transmit/receive (low power)

SENDEN GROSS: Transmit/receive (high power)

Squelch Switch Settings (Ref. C)

Note: Squelch is opened by carrier level, equivalent to "old" mode in U.S. radios.

RAUSCHSP. AUS:  Squelch off

RAUSCHSP. EIN:  Squelch on

RELAIS:               Relay (retransmit)

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SEM-25: Specifications

ALGEMEEN:

Modes :                               Simplex, retransmit

Frequency :                        Range26.00-69.95 MHz

Channel :                            Spacing50 kHz

Number of channels :        880

Channel selection :           44 1-MHz bands, 20 50-kHz channels each

Programmable channels : 10

Modulation :                       FM

Operation, including frequency selection :

Operated from a transceiver-mounted control box,

or from a relocatable control box in vehicle (max. cable length 10m)

Transmitter operation :

1. From handset or aux. receiver

2. From on-board intercom

3. From telephone remote control

Remote input and output arrangement :  From telephone remote control over field phone wires,

up to 3 km long, max. resistance 480 ohms

Temperature rangeOperating : range from -45°C to +60°C

Overvoltage protectorFor : Transients up to 65V from the battery regulator

Power supply : 24V battery supply, negative ground, permissible voltage range 21V to 29V,

short term overvoltage up to 32V

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ZENDER:

Output powerHigh :  15 W
Low :                          approx. 1 W

Calling frequency : 1600 Hz

Audio input :

1. 0.25 V from 150 ohm carbon microphone

2. 0 dB from 600 ohm balanced line

3. Warm-up tim : Eapprox. 30 seconds

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ONTVANGER:

Sensitivity :  <= 0.5 µV for 20 dB s/n with 1000 Hz modulation and 10.5 kHz deviation

Bandwidth :  >= 30 kHz at 6 dB points

Selectivity :  +/- 50 kHz at 80 dB points

Audio output :

1. 0.6 W into 5 ohm loudspeaker
2. 50 mW into 600 ohm headset
3. 1 mW into 600 ohm balanced line

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Power Supply :

Voltage :   24V battery (21V to 29V), negative ground, permissible short term overvoltage up to 32V

Power requirements, RX : approx. 10 W

Power requirements, TX : Low : approx. 50 W while transmitting

Power requirements, TX : Highapprox. 80 W while transmitting

Power requirements, TX : Low or TX Highapprox. 29 W when not transmitting

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AFMETING-GEWICHT :

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CONNECTOR:

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SEM 25 SCHEMA's

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SCHEMA's

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SEM 35

SCHEMA SEM 35

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PRC 26

Schema + Handleiding.

PRC 26 SCHEMA

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RT 68 - 70