Converting A Gr500 Repeater Into A Cdr500 Repeater; Disassembling The Repeater; Disconnecting The Controller Cables; Disassembling The Radio/Duplexer Bracket - Motorola CDR500 Programming Manual

A retrofit kit, HKLN4117, is available to convert an
existing GR500 repeater into an CDR500 repeater. This
allows replacing the older GM300-series radios with
the new Professional Series radios.

Disassembling the Repeater

NOTE
Unless specifically instructed otherwise,
DO NOT discard any hardware or cables
removed during disassembly.

Disconnecting the Controller Cables

1. Disconnect the controller cables from the
repeater controller.
Disassembling the Radio/Duplexer
Bracket
1. Disconnect the Type-N male connector of the
bulkhead cable from the antenna connector of
the duplexer
2. Remove the two (2) 8-32 nuts that secure the
front of the radio/duplexer bracket.
3. Loosen, but do not entirely remove, the two
(2) 8-32 nuts that secure the back of the radio/
duplexer bracket (this is the end of the bracket
with notched mounting tabs).
4. Lift the front of the bracket and slide forward.
Do not remove the bracket from the GR500
housing at this time.

Disconnecting the Power Cables

1. Disconnect the dc power cable plugged into
the receive radio.
2. Disconnect the dc power cable plugged into
the transmit radio.
March, 2001
Converting a GR500 Repeater
Into a CDR500 Repeater
3. Remove the radio/duplexer bracket from the
GR500 housing.

Removing the Duplexer

1. Disconnect the RF cable from the receive radio
antenna connector.
2. Disconnect the RF cable from the transmit
radio antenna connector.
3. Remove the four (4) 6-32 x 1/2", pan head
screws that secure the duplexer to the bracket.
4. Remove the duplexer, with the two RF cables
attached, from the bracket.
Removing the Receive and Transmit
Radios
1. Disconnect the controller cables from both
radios.
2. Remove the two (2) M5 x 8, pan head screws
that secure the receive radio to the bracket.
3. Remove the receive radio from the bracket.
4. Remove the two (2) M5 x 8, pan head screws
that secure the transmit radio to the bracket.
5. Remove the transmit radio from the bracket.

Assembling the Repeater

Refer to "Section 2, CDR500 Wall Mount Repeater Sta-
tion" of this manual for instructions on completing the
conversion of the GR500 repeater to a CDR500
repeater.
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Section 4
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