HP 83206A User Manual page 248

Chapter 8, Connector Descriptions
Rear Panel Connectors
CW RF In
Diag Out
Ext IF In
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This is the RF carrier input to the Cellular Adapter. It is normally connected to the
Test Set's CW RF Out connector.
Operating Considerations
Nominal input level = 0 dBm, +/- 4 dB
Maximum input level = + 12dBm
Input impedance = 50 Ohms
Frequency range:
• 500 to 1000 MHz without IQ modulation
• 810 to 956 MHz with IQ modulation
This port provides various signals used to service the Cellular Adapter.
When servicing the Cellular Adapter, this port is connected directly to the Test
Set's AUDIO IN (HI) connector. Diagnostic routines are then run using the Test
Set's internal IBASIC computer to locate the faulty module.
This port is generally connected to the HP 8920B Option 006 DET OUT port for
making the average power measurement.
This connector allows an external IF signal to be used in place of the 114.3 MHz
IF that comes from the Test Set. This allows you to provide your own external
downconversion of the modulated carrier, bypassing the Test Set receiver down
conversion to 114.3 MHz and Cellular Adapter down conversion to 700 kHz.
Operating Considerations
Input Frequency = 700 kHz, +/- 1 kHz
Input level range = 30 to 400 mV peak
Input impedance = about 1 k Ohm
Set the Sample Clk to 2.5 MHz for a 700 kHz IF and 1 MHz for a 220 kHz IF.