Specifications

2. Check availability of AC power, and grounding arrangements.
3. Check antenna installation, in accordance with the antenna installation and operation manual.
4. Check the cable runs between the RM500/RM500R and the prescribed antenna, including the
coaxial protector. Make sure that the cables are securely fastened, and do not show signs of
external damage.
Note
Before installing the RM500/RM500R on slides, make sure you are familiar with
the procedures needed to install slides in the rack/cabinet, and to safely install
heavy equipment on the slides.
Installation Procedure
–
Basic Radio
1. Identify the installation position of the RM500/RM500R in the rack.
2. Install the RM500/RM500R in the prescribed installation position, fastening it by means of four
screws to the rack rails or to the drawer front.
3. Connect grounding straps from each of the two RM500/RM500R grounding screws (located on
its rear panel), to the prescribed cabinet’s grounding bar.
4. Set the power switch on the RM500/RM500R front panel to OFF (down position).
5. Connect cables to the unit as follows:
• Connect the RM500/RM500R AC power cable to the prescribed outlet on the power
distribution box of the cabinet.
• Connect the antenna feed cable to the RF OUT connector of the RM500/RM500R.
• When an external device is used, connect the prescribed cable to the accessories
connector of the RM500/RM500R that supports the corresponding device.
6. Connect audio accessories to the front panel connectors.
Installation Procedure
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Radio with PPS Option
PPS Functions
The optional Preselector/Postselector, PPS-100 (referred to as PPS in this manual), supported as an
option by the RM500/RM500R, permits operation of collocated receivers and transmitters on
frequencies separated by as little as 10%. The PPS operating frequency range is 1.60 to 29.99 MHz.
To use the PPS, order the RM500/RM500R with option G65. The connections between an
RM500/RM500R with option G65 and the PPS are shown in Figure 5.
When the G65 option is installed, the PPS is controlled by the RM500/RM500R through serial and
parallel ports and is automatically inserted by the RM500/RM500R in the signal path in accordance
with the operating mode:
• In the receive mode, the PPS functions as a preselector, providing an additional front
end selectivity stage for the receive path of the RM500/RM500R. This reduces the
receiver desensitization and overload that would normally occur in the presence of
strong adjacent RF transmissions.
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