ITCR Base Radio User's Guide
© 2011 Meteorcomm LLC. All Rights Reserved. Proprietary and Confidential
8
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9/8/2011
RF output power
RF output channel
Factory technicians tune the master reference crystal oscillator and set the RF gain
for maximum rated output power. You may have to adjust the three parameters
before or during RF testing by entering commands using XtermW or any other
terminal emulation program.
4.1
Equipment Required
1.
10A DC power supply at rated voltage of base radio.
2.
Personal computer with ethernet network adapter and Meteorcomm XtermW
or equivalent terminal program installed.
3.
30 dB 100W RF power attenuator.
4.
Vector spectrum analyzer for power and frequency measurements.
5.
Optional 8+ digit frequency counter for frequency measurements.
6.
External high stability time base (e.g., rubidium) accurate to 0.01 ppm. Can be
internal to items 4 and 5.
4.2
Set up the Radio for Testing
1.
Find the input voltage rating marking on the radio chassis. It is either 24VDC or
48VDC. Adjust a 10A DC power supply to the proper voltage; then disable its
output. Observing polarity markings connect the power supply between the
radio power terminals and the power supply.
2.
Connect a CAT5 ethernet cable between the RJ-45 port labeled MAINT.
Connect the other end to a computer network card. The default radio IP
address is 10.10.1.254. Set the IP address of the computer network card to a
compatible fixed address such as 10.10.1.1. The computer should have
Meteorcomm XtermW or a similar terminal emulation program installed.
3.
Apply power to the radio. Wait 30 seconds to open an XtermW session. Use
the Edit/Configure Port window to set Port Type = TCP/IP, Protocol = Stream,
TCP/IP Settings Host = 10.10.1.254, Port 4000. Select Device Type = MCC 6100
SDR (which also applies to ITC radios). Return Character = CR, Data Format =
ASCII.
