Specifications
Table 4. ESG #2 instrument configuration for two-box setup
13
Parameter
Frequency
Amplitude
Ampl
ALC
Mod On/Off
RF On/Off
Mode / (Real-time I/Q BaseBand)
CDMA
Phase Polarity
IQ Map Rotation
BBG Data Clock
BTS Setup
Filter
Even Second Delay
LC State
PN Offset
Return
Link Control
Channel 1 (F-PICH) Setup:
Channel Number
Channel State
Channel 2 (F-SCH #2) Setup:
Channel Number
Channel Type
Channel State
Channel 3 (F-FCH) Setup:
Channel Number
Channel State
Channel Setup
Power
Walsh Code
Radio Config
Return
Channel 4 (F-SCH #1) Setup:
Channel Number
Channel Type
Channel State
Channel Setup
Power
Walsh Code
Radio Config
Data Rate
Return
Return
CDMA2000
Utility
Instrument Adjustments
Signal Polarity Setup
Data Clock Polarity
Setting Notes
1.2288 MHz Set the frequency to 1.2288 MHz for the Chip Clock.
20 dBm The amplitude is set to maximum and the Amplitude
Level Control is turned off in order to provide near
Off TTL voltages to drive the Data Clock.
Off
On
The I/Q phase polarity is reversed because the RF is
below 250 MHz, the harmonic mixing transition
Invert point. The internal I/Q path has an automatic phase
Std. inversion, but the external I/Q path must be set
Ext manually. Ensure that the BBG Data Clock is set to Ext.
Use the arrows to navigate to adjust the BTS
(Basestation Transceiver Station) Setup parameters.
IS95 w/ EQ Set Filter to IS95 w/ EQ for either IS-95 or IS-2000
17.5 Set delay to 17.5 chips to align RF with the trigger.
[00000000001] The LC (long code) State may be set to 00000000000 for
[0] no long code or to 00000000001 or another value to
seed the long code.
From the Link Control menu, set up the channels as
follows. Refer to Figure 4.
F-PICH (Forward Pilot Channel)
1
Off
Second F-SCH (Forward Supplemental Channel)
2
F-SCH
Of
F-FCH (Forward Fundamental Traffic Channel)
3
On
[-10.00 dB]
[10] Manually check to make sure the Walsh Code doesn’t
[4] conflict with the Walsh Codes on ESG #1.
First F-SCH (Forward Supplemental Channel)
4 Note: Channel 2 may alternatively be configured as a
F-SCH supplemental channel.
On
[-10.00 dB]
[4] The Supplemental’s Walsh code range varies based
[4] upon the RC and data rate.
[153.600 kbps] Manually check to make sure the Walsh Code doesn’t
conflict with the Walsh Codes on ESG #1.
On
Note: If the Signal Polarity Setup menu is not available, this
step can be skipped.
Pos Confirm that the Clock Polarity is set to Positive.