NuPower Xtender™ 12B04A User Manual
Rev 3.2
10
5.1.2
Transmit Threshold Control
The Transmit Threshold Control feature enables the user to change the signal level threshold at which
the Xtender automatically switches from its default receive state to its transmit state. By setting a higher
transmit threshold control value (higher sensitivity), the user can help facilitate more accurate
transmit/receive state switching.
Note:
If the Xtender is exhibiting false transmit switch triggering, it is recommended to set a lower
transmit threshold control value.
The “STAT?” command can be used to display the current Transmit Threshold Control value.
The “TRLVL
xxxx
” command is used to change the setting of the Transmit Threshold Control value.
The Transmit Threshold Control settings are defined as:
•
0000 = lowest Transmit Threshold Control value, lowest transmit detection sensitivity.
•
4095 = highest Transmit Threshold Control value, greatest transmit detection sensitivity.
•
A Transmit Threshold Control value of 1800 sets the threshold to approximately 0 dBm.
•
Note: Factory default setting is 1800 (~0 dBm threshold).
Figure 5: Transmit Threshold Control Value vs Minimum RF Input Power Required to Engage Transmit
