Humax T9 사용자 설명서
Confidential
DUT Graphical User Interface
DUT Tool Package
Using the DUT GUI
User’s Guide
20
Revision 1.1, 2013-05-06
5.5.2
Hardware Limitations
The hardware limitation are different for every type of board. During EMI certification, for example, an RF board
might need to lower the output power even more than required in the regulation for the specific channel used
because of band edge, 2nd harmonic and other limitations.
The DUT GUI uses information from the supplied limits.ini file according to the HW Type and HW Version
information found in the EEPROM during startup. All known HW types are listed at the top of the ini file.
Example:
might need to lower the output power even more than required in the regulation for the specific channel used
because of band edge, 2nd harmonic and other limitations.
The DUT GUI uses information from the supplied limits.ini file according to the HW Type and HW Version
information found in the EEPROM during startup. All known HW types are listed at the top of the ini file.
Example:
[HWTypes]
0x301a_0x8006_0xc4_0x45= GPB-208
0x301a_0x0007_0x30_0x43 = GPB-304
0x301a_0xC007_0x40_0x44= Easy388 family board (WRX RFIC)
0x301a_0x8006_0xc4_0x45= GPB-208
0x301a_0x0007_0x30_0x43 = GPB-304
0x301a_0xC007_0x40_0x44= Easy388 family board (WRX RFIC)
If there is no HW limit for the HW used in the specific channel, only the regulatory limits will be taken into account.
DUT GUI will not allow users to change the desired Tx power value more than the limitation described above allow.
After the desired power is changed, click Set power for the change to take effect.
DUT GUI will not allow users to change the desired Tx power value more than the limitation described above allow.
After the desired power is changed, click Set power for the change to take effect.
5.6
Changing BB and PA Driver Gains
Figure 13
BB and PA Driver Gain Setting
The DUT GUI allows you to control the TPC attenuator in the RF chip and two additional RF chip internal
amplifiers:
•
amplifiers:
•
Base band gain (BB gain) - In the BB side of the RF chip there is an option to boost dB gain by 0, 2.5, or 5
•
PA driver gain - In the RF side of the RF chip there is an option to gain 0 or 3 dB using the PA driver gain control
The system automatically determines the initial value of both gains and this might differ between frequencies and
bands.
Note: This Gain change option is applicable for XWAY™ WAVE300 devices only.
bands.
Note: This Gain change option is applicable for XWAY™ WAVE300 devices only.
5
FCC
1
20
48
17
No
5
FCC
2
20
52
24
Yes
5
FCC
2
20
56
24
Yes
5
FCC
2
20
60
24
Yes
5
FCC
2
20
64
24
Yes
Table 5
Reg Limits (cont’d)
Band
Domain
Class
Spacing
Channel
Power Limit
Sm Required