DRAKE 550TCP Manual de instrucciones - Página 7
Navegue en línea o descargue pdf Manual de instrucciones para Hardware informático DRAKE 550TCP. DRAKE 550TCP 10 páginas. Commercial terrestrial channel processor (for use in ntsc systems)
Imprimir páginaThe 550TCPT is an upgraded version of the Dracom
550TCP. The "T" Channel model includes a built-in
upconverter to extend coverage of the input section to
include channels T7 through T13. When the T channel
upconverter module, which must be factory installed, is
present, the processor may be used in either the normal
mode with input channels starting at CH2 or in the T
channel mode where the upconverter is connected
between the input of the normal tuner and the input signal.
To use the T channel mode, the included F connector
jumper cable is simply installed between the UP
CONVERTER OUTPUT and the RF INPUT and the T
channel input signal is connected to the T7 TO T14 IN
input instead of the RF INPUT. These connections are all
on the rear panel of the processor. To use the processor
for normal input channels, the jumper can be removed
and the normal input (RF INPUT) used.
When the upconverter is used, input channel T7 is
selected by choosing channel 7 on the input channel
switch, T8 is selected by setting 8, and so on through
input channel T13 which is selected by setting 13 on the
input channel switch.
UPCONVERTER SPECIFICATIONS
Gain:
Unity ± 2 dB.
Noise Figure:
Less than 10 dB.
Input Level (T channels):
+ 30 dBmV maximum.
Input Return Loss:
15 dB typical.
Local Oscillator:
168.250 MHz, PLL synthesized and locked to processor reference.
T7 TO T14 IN CONNECTOR
(T7 TO T13 FOR THE DRACOM 450TCPT)
RF
OUTPUT
TV CHANNEL OUT
T Channel Upconverter
"T" CHANNEL
SIGNAL IN
COMPOSITE IF
IN
OUT
IF
LOOP
The specifications for the T series of channel processors
are identical to the non T versions when used on normal
channels without the input upconverter connection. When
the upconverter is in use, the additional specifications,
listed below, will also apply for use with T channel input
channels.
These T series processors accept T channel input
signals but output coverage does not extend below
channel 2. Thus, T channels can be converted to any
other channel in the processor's output range starting with
channel 2 and up.
NOTE: When using the T channel upconverter module
option on the 550TCPT, avoid use on input channels if an
adjacent channel is present at the input and output. For
adjacent channel operation, use the HCP1450T,
HCP1550T, or HCP2550T models, which have additional
SAW filtering.
UP CONVERTER
OUTPUT
T-7 TO T-14
UP CONVERTER
IN
OUTPUT
5
RF INPUT
RF
INPUT