DRAKE HCP2550A Manual de instruções - Página 4

Procurar online ou descarregar pdf Manual de instruções para Hardware informático DRAKE HCP2550A. DRAKE HCP2550A 16 páginas. Commercial heterodyne channel processor (for use in ntsc systems)

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iv
Table of Contents / Specifications

TABLE OF CONTENTS

ii
Caution Statements
iii
Important Safety Instructions
iv
Table of Contents / Specifications
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4
SPECIFICATIONS
Adjacent Channel Rejection:
Tuner Image Rejection:
COMPOSITE IF LOOP
Output Level (V carrier):
Input Level (V carrier):
IF Input/Output Impedance:
Video Frequency Response:
A/V Ratio Adjustment:
Auto Switching Level:
Isolation Between Composite and EAS Inputs:
Operating Temperature:
INPUT SECTION
Frequency Range:
54 - 806 MHz:
Off-Air TV channels 2 - 69,
Standard CATV channels 2 - 125,
IRC and HRC channels 1 - 125.
Input Impedance:
75 Ohms, greater than 10 dB return loss.
RF Input Level:
-20 dBmV to +25 dBmV (preamp on).
-10 dBmV to +35 dBmV (preamp off).
Greater than 60 dB.
Noise Figure:
Less than 10 dB (preamp on).
Greater than 75 dB.
In-channel C/N:
60 dB for input levels of +15 dBmV or greater (preamp on).
60 dB for input levels of +25 dBmV or greater (preamp off).
AFC Range:
± 75 kHz minimum.
Pilot Threshold:
Typical adjustment range:
-20 dBmV to +5 dBmV (preamp on).
-10 dBmV to +15 dBmV (preamp off).
+28 dBmV ±2 dB.
Spurious Outputs:
-60 dBc minimum.
+28 dBmV nominal,
+30 dBmV maximum.
75 Ohms, greater than 15 dB return loss.
Isolation:
Greater than 60 dB.
OUTPUT SECTION
Frequency Range:
82 channels, 54 to 550 MHz;
Channels 2 - 78 and 95 - 99.
Output Level:
+60 dBmV (typically adjustable from +50 to +60 dBmV).
Output Impedance:
75 Ohms, greater than 12 dB return loss.
20 Hz to 4.2 MHz, ±1.5 dB maximum.
L-C Delay:
±50 nSec.
Frequency Stability:
±5 PPM of output frequency (AFC on),
±5 PPM of frequency difference between input and output signals (AFC off).
FCC Offset:
Automatic (plus, minus, or none is selectable).
+5 dB to -12 dB typical, relative to input A/V ratio.
Spurious Outputs:
-60 dBc.
Broadband Noise:
-80 dBc (measured in a 4 MHz bandwidth at greater than ±12 MHz offset from
carrier at an output level of +60 dBmV).
EAS INPUT
Input Level:
+28 dBmV nominal.
Input Impedance:
75 Ohms, greater than 15 dB return loss with this port enabled.
Greater than +20 dBmV, nominal.
Greater than 60 dB.
GENERAL
AC Power Input:
115 VAC (±10%), 60 Hz, 30 Watts.
0
0
C to +50
Dimensions:
19" (481 mm) W x 1.75" (44 mm) H x 14.3" (363 mm) D.
Weight:
10 lbs. (4.6 Kg).
5
Installation
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8
9
0
C, ambient.