User's Manual

SECTION 3: INSTALLATION INSTRUCTIONS
M64450G25-FCCRpt.doc Page 23
Step 8 At the desktop, click on the Start button and select Programs and MS-DOS
Prompt. The MS-DOS window displays.
Step 9 Ping the IPNC commanding the transmitter to send 25 messages of 500
characters each to the IPNC as well as a response through Receiver 1 back to
the laptop or desktop PC by typing in the following command at the MS-DOS
prompt replacing NNN.NNN.NNN.NNN with the IPNC IP address:
Ping NNN.NNN.NNN.NNN –n 25 –l 500 –w 4000
After entering the command, press [ENTER] to continue.
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When entering a command, pay special attention to the spaces and the
characters being typed.
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If the calibrated base station does not respond, check the syntax of the Ping command and verify
the IP address is correct.
If the ping command runs but high packet loss figures are shown, perform the following:
1. Verify that the calibrated base station and mobile radio antennae are separated by at least
10 feet. If the antennae are too close, the mobile radio receivers can be overloaded by the
transmitters resulting in intermittent communication and high data errors.
2. Verify the calibrated base station parameters are correct for the mobile radio. Such
parameters include IP addresses and complementary RX/TX frequencies.
3. Check to ensure the data and power cables are connected correctly.
4. If the Ping command continues to fail, test using a mobile radio that is known to be working
properly.
Step 10 Check the test laptop and verify that the Packets Lost Percentage is zero to 1%
packet loss. Greater losses may indicate a problem with the transmitter/receiver
1, or modem circuitry.
Step 11 Change the antenna on the mobile radio to the RX2 antenna input.
Step 12 Connect the RF attenuator to the mobile radio’s TX/RX1 antenna input.
Step 13 Connect the second antenna to the RF attenuator. In the IPMessage window,
enter receiver=2. This will allow the mobile radio to only receive via Receiver 2.
Step 14 Type the following command at the MS-DOS prompt replacing
NNN.NNN.NNN.NNN with the IPNC IP address:
Ping NNN.NNN.NNN.NNN –n 25 –l 500 –w 4000
After entering the command, press [ENTER] to continue.
Step 15 Check the test laptop and verify that the Packets Lost Percentage is zero to 1%
packet loss. Greater losses may indicate a problem with the receiver 2, or
modem circuitry.