Technical data

410 Chapter 15
Signal Generator
Using the Signal Generator
Signal Generator
Using the RF OUT Loss field
The RF OUT Loss field is used when it is necessary to test the receiver sensitivity of
a typical base station. The test set’s source will typically go down to –90 dBm. In
order to reach –113 dBm for sensitivity testing, you must use an external attenuator.
The measured value of the attenuator and connecting cables are entered into this
field. This value is then used when this field is set to
On. When this field is set to
On, the test set will set the RF generator level to the correct level offset by the
High level non duplex connection
20 On [RF] select
On. Each time you press this softkey, the selected
option changes.
a. The characteristics of any 1xEV-DO signal generated are:
RRI Active: RRI Bits: 1
DRC Channel Relative Gain: +3 dB
ACK Channel relative Gain: 0 dB
Data Channel Relative Gain: +3.75 dB
Data Channel: Active
Data Channel Data Rate (low Speed Signal): 9.6 kbps
Data Channel Data Rate (High Speed Signal: 460.8 kbps at payload size
12288 bits
Data Channel bit stream: PN15
I Mask: 3FF80000000
Q Mask: 3FF00000001
Filter Type: IS 95 Std
Step Notes