Meteorcomm LLC 63030-24 ユーザーズマニュアル
ITCR Base Radio User's Guide
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8
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5/8/2013
4.1 Input Power
A label on the radio chassis indicates the rated voltage of the Base radio: 24 or 48V.
The table below describes the power supply requirements for each type.
The table below describes the power supply requirements for each type.
Caution: Applying an incorrect voltage outside the rated voltage
range of a Base radio can damage it. Confirm the voltage ratings
of the radio and the power supply before applying power.
range of a Base radio can damage it. Confirm the voltage ratings
of the radio and the power supply before applying power.
Table 1. Base Radio Input Power Parameters
Parameter
Base Radio
Nominal DC Power Input Voltage
24VDC radio version
48VDC radio version
Operational Range
21-27 Vdc
(+/-12.5%)
42-54 Vdc
(+/-12.5%)
Damage limit
30VDC
60VDC
Current Drain (while transmitting
rated power)
11A peak max with 50
ohm load
7.5A for max average
operating current
6A peak max with
50 ohm load
4A for max average
operating current
4.2 Ethernet Connection
Base radios use a standard CAT5 Ethernet cable connected between a PC and the
maintenance port of the radio. Configure the PC network card with a fixed IP
address of 10.10.1.254.
maintenance port of the radio. Configure the PC network card with a fixed IP
address of 10.10.1.254.
You will use XtermW, a Meteorcomm terminal emulation program, to connect with
and control the radio via commands issued at command prompts.
and control the radio via commands issued at command prompts.
4.3 RF Output Termination
The Base radio is rated for 75W PEP max into a 50 ohm resistive load. Base radios
have a single TX/RX port with two additional ports for receiving only. For transmitter
testing, connect the test equipment to the port labeled “TX/RX.” A suitable RF power
attenuator should be used to protect test equipment.
have a single TX/RX port with two additional ports for receiving only. For transmitter
testing, connect the test equipment to the port labeled “TX/RX.” A suitable RF power
attenuator should be used to protect test equipment.
5. Tuning the Base Radio
There are three parameters to test and potentially tune before/during RF testing: