Icom id- rp2, Instruction Manual, Page: 20 / 56

17
2001 NEW
4
INSTALLING AND CONNECTING
Adjusting the parabolic antenna
■
About the test plug D
Assemble the test plug before adjusting the parabolic
antenna as follows.
Voltmeter
to
+
(voltmeter)
q
w e
r
+
Short
to
_
(voltmeter)
_
q
Short
pin 2 (
TEST
)
and
pin 3 (
GND
)
terminals of the
test plug, that is supplied with the ID-RP2L.
w
Connect a voltmeter between pin 1 (RSSI) and pin
4 (GND).
e
Assemble the test plug as illustrated at left.
Parabolic antenna beam adjustment D
Adjust the parabolic antenna beam as follows.
Due to the very critical adjustments that are required,
have two or more people available to assist in the ad-
justments.
Adjust the beam direction
after loosening the bolts.
Adjust the beam elevation
after loosening the bolts.
q
Aim the parabolic antenna beam at the opposite
repeater’s microwave antenna, and temporarily fix it
in place.
w
Connect a voltmeter to the [TEST] connector of the
ID-RP2L, through the test plug, and make sure the
shorting wire is in place.
• The link transmitter will transmit a test signal automati -
cally.
• Transmit a test signal from the opposed microwave link
repeater also.
• The voltmeter swings when the test signal is received
from the opposed microwave link repeater.
e
Adjust the parabolic antenna beam direction and
elevation angles to the point where the voltmeter
shows maximum voltage, then fix the antenna in
place.
r
Follow the antenna direction and elevation proce-
dures for the opposite repeaters’ antenna, and fix it
in place.
t
Repeat the adjustments to optimize the signals and
then securely fix the antennas in place.