FlexRadio Systems SDR-1000 User Manual

S E T U P F O R M C H A P T E R 8
Noise Gate
Figure 98: Noise Gate
 Enabled: Enables the transmit noise gate.
 Threshold (dB): The threshold below which the transmitter is silenced (gated). When adjusted
correctly, the noise gate prevents prevailing noise in the room (ambient noise) from being
transmitted while the mic is keyed and the operator is not talking. It is very useful if there are close
by fans that degrade your signal and make your transmissions disturbing to copy. The noise gate
operates identically, whether using VOX or PTT.
To adjust the noise gate:
1. While wearing headphones, activate MON and MOX on the front console (use a dummy
load). Disable the noise gate and turn up the Monitor AF so that you can hear your ambient
noise clearly and preferably louder than without headphones. Without speaking, enable the
noise gate.
 If you still hear your ambient noise, increase the noise gate threshold level until the
noise is just silenced.
 If your ambient noise disappears when enabling the noise gate, decrease the
threshold level until you just start to hear it. Then increase it until it just disappears.
2. With the noise gate adjusted, speak into the microphone and verify that your voice sounds
as natural as possible.
VOX
Figure 99: VOX
 Enabled: Enables/Disables the VOX operation.
 Sensitivity: The threshold above which the software automatically switches to transmit mode. Use
this in combination with the Noise Gate for best results.
99 FlexRadio Systems

FlexRadio Systems SDR-1000 Specifications

General

Brand	FlexRadio Systems
Model	SDR-1000
Category	Radio
Language	English