DRAKE 550TCP Manual de instrucciones descargar pdf (Pagina 5)

115 VAC, 60Hz

30 WATTS

OUT

FUSE

1 / 2 A, 250 V

SLO - BLO

CAUTION:

ATTENTION:

- RISK

OF FIRE - REPLACE

FUSE AS MARKED

AFTER DISCONNECTING

UNIT FROM AC LINE.

- RISQUE D'INCENDIE -

REMPLACEZ FUSIBLE DU

TYPE INDIQUE APRES

DEBRANCHER DU SECTEUR.

LOOP

INPUT

COMPOSITE IF

UP CONVERTER

OUTPUT

T-7 TO T-14

OUTPUT

MADE IN THE U.S.A. BY

115 VAC, 60Hz

30 WATTS

OUT

FUSE

1 / 2 A, 250 V

SLO - BLO

CAUTION:

ATTENTION:

- RISK

OF FIRE - REPLACE

FUSE AS MARKED

AFTER DISCONNECTING

UNIT FROM AC LINE.

- RISQUE D'INCENDIE -

REMPLACEZ FUSIBLE DU

TYPE INDIQUE APRES

DEBRANCHER DU SECTEUR.

LOOP

INPUT

COMPOSITE IF

UP CONVERTER

OUTPUT

T-7 TO T-14

OUTPUT

MADE IN THE U.S.A. BY

Installation 3

CONNECTIONS AND CONTROLS – All connections to

and from the 550TCP are made through the rear panel.

Figure 3 shows a typical two channel processing

installation involving the converting of off-air signals.

Additional channels can be processed by using additional

channel processor units and either multi-port combiners or

combinations of two-port combiners.

INSTALLATION NOTES – Level adjustment provides

optimum performance in multichannel installations. The

channel processor outputs should be checked periodically

with a spectrum analyzer to maintain a ±1 dB variation of

adjacent channel carriers. Aural/Visual (A/V) ratios should

be held to –15 dB or less. The ‘Output Level’ and ‘A/V

Ratio’ controls are used respectively to make these

adjustments. If an output level of less than +50 dBmV is

required, add an attenuator of the appropriate value to the

modulator output.

Example: For an output level of +45 dBmV, add a 12 dB

attenuator pad to the modulator output and set the output

level.

RACK MOUNTING – Adequate ventilation is very

important in multichannel installations. Units should be

spaced apart by at least one panel height wherever

possible, and some air movement is advisable in enclosed

rack cabinets. Excessive heat will shorten component life

and unit performance will be degraded without proper

cooling.

FCC PAR.76.612- The synthesizer in the output section of

the 550TCP has been programmed to comply with FCC

requirements for offsets on cable channel frequencies

assigned to aviation and navigation communications. The

programmed offset for each channel is listed in Tables 3

and 4 in the Installation section of this manual.

Figure 3 - Typical Multiple Channel Processor Installation.

OUT

5-1000 MHz -130 dB RFI

OUT

3611

2-WAY SPLITTER

2-WAY SPLITTER/

COMBINER

RF OUT

TO SYSTEM

550TCP

OFF-AIR

1 2 3 4 5 6 7 8 9 10

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DRAKE 550TCP Manual de instrucciones Pagina 5

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