Telex CDR-1000 - Manual (Page 4)

Section 4 Detailed Description of Unique CDR-1000 Features
Headphone Operation
1. With the transmitters and receivers setup and
operating (see Sections 1 and 3 in the main RE-1
Operating Instructions), plug stereo headphones
into the 1/4inch jack on the front panel.
2. The Selected Receiver LED will indicate receiver 1
is being monitored. Press the Receiver Select
button once to change from Receiver 1 to 2.
3. Press the Receiver Select button once more and
both indicator LEDs will light. You can now listen to
both receivers. NOTE: If both receivers are set to
the same channel, the volume will double.
4. Pressing the Select button once more cycles back
to Receiver 1.
Audio Output
1. The CDR-1000 is equipped with a balanced XLR
output for each receiver that can be switched
between a fixed microphone level and an
adjustable line level. There is also an unbalanced
adjustable line level ¼” jack.
2. For microphone level operation place the Mic/Line
switch in the Mic position. The level adjustment will
have no effect on the output in the Mic setting.
3. For adjustable balanced line level operation place
the Mic/Line switch in the Line position. The level
adjustment will now affect the output.
Antenna Connections
1. Install the two FA-1 flexable antennas to the
“antenna in” jacks on the rear panel.
NOTE: The two flexible ½ wave antennas included
with the CDR-1000 can be remote mounted. For an
additional 5dB gain use the LPA500 log periodic
directional antenna.
2. The CDR-1000 is equipped with a left and right
antenna output jack. These jacks can be used to
connect up to 3 CDR-1000 (6 receivers) to two
antennas without any additional equipment. DO
NOT remove “dummy” loads unless connecting to
another CDR-1000.
3. Figure 3 shows the connection diagram for 3
CDR-1000 units.
4. Up to 12 CDR-1000 units can be operated with just
two antennas with the optional APD4-B antenna
distribution unit (see Figure 4).
12 Volt Power On “Antenna In” Jacks
To power in line antenna amplifiers, 12 volt power is
available on the center pin of the antenna in jacks. this
power is disabled when the CDR-1000 leaves the
factory but may be turned on by the installer.
To turn on the 12 volts, first take off the cover of the
radio by removing 14 screws. There is a 2 pin “header”
and a “jumper” behind the “XLR” audio connector on
each of the two large printed circuit boards. See Figure
5. The jumper is installed on one pin of the header at
the factory. To turn on power, unplug the jumper and
install it on both pins of the header.
CAUTION: Do not attach antennas and splitters with a
DC short circuit to the antenna in jacks when the power
is turned on. Damage could result to the splitter or
CDR.
The following antennas and accessories may be used
with power on:
FA-1, CLA-X, LPA-500B, APD4-B, APD4-1B,
UAA-500
The following antennas and accessories may be used
with the power off.
FA-1, CLA-X, LPA-500, APD4, APD4-1
CDR-1000
DUAL RECEIVER
PROGRAM 2 PROGRAM 1
MADE IN U.S.A. OUT IN ANTENNA
POWER
90-260 VAC 50-60 Hz
12 Vdc
150 mA
Out
PATENT NO. 6,256,484
OUT IN ANTENNA
12 Vdc
150 mA
Out
CDR-1000
DUAL RECEIVER
PROGRAM 2 PROGRAM 1
MADE IN U.S.A. OUT IN ANTENNA
POWER
90-260 VAC 50-60 Hz
12 Vdc
150 mA Out
PATENT NO. 6,256,484
OUT IN ANTENNA
12 Vdc
150 mA Out
CDR-1000
DUAL RECEIVER
PROGRAM 2 PROGRAM 1
MADE IN U.S.A. OUT IN ANTENNA
POWER
90-260 VAC 50-60 Hz
12 Vdc
150 mA Out
PATENT NO. 6,256,484
OUT IN ANTENNA
12 Vdc
150 mA Out
THIS END TOWARD TRANSMITTER
UHF
LPA500
R LOG PERIODIC ANTENNA
THIS END TOWARD TRANSMITTER
UHF
LPA500
R LOG PERIODIC ANTENNA
MIC
AUDIO 2 LINE LEVEL
LINE
HIGH Z
MIC
AUDIO 2 LINE LEVEL
LINE
HIGH Z
MIC
AUDIO 2 LINE LEVEL
LINE HIGH Z
MIC
AUDIO 2 LINE LEVEL
LINE
HIGH Z
MIC
AUDIO 2 LINE LEVEL
LINE
HIGH Z
MIC
AUDIO 2 LINE LEVEL
LINE HIGH Z
Figure 3
Antenna Chaining
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