User's Manual

CHAPTER 4: PRODUCT INSTALLATION
2003 IPMobileNet, Inc. 19 IPSeries MR User Manual / Rev. A / 04-September-03
Figure 10: Power Adjustment Potentiometer Location for the IP8B
Step 1 Connect a computer with the HyperTerminal utility to the base station’s monitor serial port.
! Refer to the section titled HyperTerminal Setup located in Chapter 5: Programming
Instructions for HyperTerminal Setup and access instructions.
Step 2 Launch the HyperTerminal utility.
Step 3 Locate the adjustment hole (see Figures 8, 9, or 10 according to the model being used).
Step 4 Fit the tool to the potentiometer.
Step 5 Key the transmitter on the base station by typing X=1450,10 in the HyperTerminal window.
The base station will generate 10 data packets, each 1450 bytes in length.
! If this does not work, check the base station’s MTU parameter. The X=number must
be smaller than the MTU value.
1 To avoid damage to the amplifier, when setting the power to drive an external amplifier, set the
base station power below the external amplifier’s maximum drive limit.
Step 6 If setting the power to drive an external amplifier, use a wattmeter and dummy load to
measure the output power of the base and set it to the amount of drive power that is will be
needed for the amplifier.
! Be aware that the coaxial cable that will connect the base station to the power
amplifier may have completely different characteristics to the test cable used to
measure power output. If possible, adjust the power with the coaxial cable that will
be used in the system ensuring the power measured is exactly what will be fed into
the amplifier.