Humax T9 사용자 설명서

 User’s Guide

17

Revision 1.1, 2013-05-06

      

If CB is used, the selected channel is the primary channel and you need to choose if the secondary channel will 
be on the lower or upper side of the primary channel. The DUT GUI automatically calculates the actual frequency 
of the DUT's LO according to the channel, the BW, and the location of the secondary channel

•

Signal BW - When the 40Mhz spectrum BW is chosen, you can choose between CB (40 MHz) Tx or SSB 
(single side band) transmission.
– In SSB mode, all Tx and Rx filters are on 40 MHz BW, LO is according to 40 MHz transmission but the actual 

transmitted signal is only in one side of the LO (according to the location of the primary channel)

– The difference from the previous option of 20MHz is the location of the signal in comparison to the LO and 

the filters used. 

•

Channel - Select a channel according to the 802.11n standard definition of channel. LO Frequency will 
automatically be calculated according to BW definitions.

•

Byte length - The packet length in bytes. The maximum length is 1570 bytes.

•

Rate index - According to the MCS table at the 802.11a/b/g/n standards 

. The list of available rate 

indexes will be according to the protocol type chosen.

•

Calibration mask - This influences the initial calibration inside the RF chip after setting channel. The value 
should be set to 0xFFFF.

•

Repetitions - How many times the packet should be transmitted.

•

Set Channel button - To instruct the DUT to change channel:
– a.Set all the parameters.
– b.Click Set Channel. 

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When changing channel all transmissions will be stopped.

•

Transmit button - To instruct the DUT to start transmitting:
– a.Set all the parameters.
– b.Click Transmit. 

•

Stop Transmission button - Use this to instruct the DUT to stop transmitting (only available when DUT is in 
Transmit mode).