User Guide

Figure 20 GPS Quick Test window for GPS troubleshooting

GPS RF test points

The GPS antenna test pads are located on the top side under the keymat as shown in figure "GPS antenna

test pads". Checking for a connection between these two test points will confirm that the antenna is working

correctly, as well as performing a radiated CW test.

J6212 = GPS Ant

J6213 = GPS Ant Gnd

In order to probe GPS RF test points, inject 1575.52 MHz tone @ -50dBm at the GPS antenna test connector

and select Receiver On, then probe the GPS RF test points as shown in figure "GPS RF probe points". Compare

RF levels with a known reference phone.

RM-313

BB Troubleshooting and Tuning Guide

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