DRAKE TR270 Manuel du propriétaire télécharger pdf (Page 15)

REPLACE FUSE AS

- RISK OF FIRE -

MARKED AFTER

DISCONNECTING UNIT

- RISQUE D'INCENDIE -

REMPLACEZ FUSIBLE DU

TYPE INDIQUE APRES

DEBRANCHER DU SECTEUR.

CAUTION:

ATTENTION:

A N T E N N A 2

RECEIVE ONLY

VHF/UHF

I N T E R F A C E

R S - 2 3 2 C

F A X /

INPUT

E X T E R N A L

T N C

D C I N P U T

13.6 VDC 6A

50/60 Hz

75 WATTS

115 OR 230 VAC

SET INTERNALLY

FACTORY SET : 115 V

LINE

FUSE

115 V

230 V

3 A,250 V

SLO - BLO

T 1.6 A,250 V

+13.6VDC

100 mA

FROM AC LINE.

GND

SWITCHED

+13.6 V

FUSE

A N T E N N A 1

RECEIVE : VHF/UHF

TRANSMIT : 144 - 148 MHz

25 WATTS

MADE IN U.S.A.

E X T S P K R

D E M O D

10 Rear Panel Description

2 1 8

9 3 4 5 6 7

FIGURE 6 REAR PANEL

1) ANTENNA 1 - This connector is the antenna input/

output of Transceiver ‘A’. Attach a 50 Ohms nominal

impedance coaxial feed line from the antenna. Ensure

that the connected antenna is resonant in the 144 - 148

MHz (2-Meter) range prior to transmitting. This connector

accepts a standard PL-259 plug.

2) ANTENNA 2 - This connector is the antenna input to

Receiver ‘B’. Attach a 50 Ohms nominal impedance

coaxial feed line from the antenna. This connector

accepts a standard PL-259 plug.

3) Interface RS-232C - This 9-pin DB-9 connector provides

a standard RS-232C interface to a dumb terminal or PC.

Refer to the COMPUTER CONTROL section of this

manual.

4) FAX/DEMOD - This RCA connector is an audio input for

CW, RTTY, HF/FAX, or WEFAX encoded signals that are to

be demodulated by the optional DEMOD270 demodu-

lator module. Input impedance is a nominal 600 Ohms.

Provide a nominal 250 mVolt signal level for proper

operation.

5) EXTERNAL TNC - This is an 8-pin DIN connector for an

optional external TNC. Refer to the TNC's Operation

Manual for wiring information. The pin numbers and

descriptions are as follows:

Pin#

Description

TX OUT (1200 B)

GND

PTT

RX IN (1200 B)

SQUELCH STATUS

TX OUT (9600 B)

RX IN (9600 B)

SPARE (open)

1 2 ... 10 11 12 13 14 15 16 17 18 19 20 ... 58 59

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DRAKE TR270 Manuel du propriétaire Page 15

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