TRANSMITTER CONVENIENCE FEATURES

VOX (AUTOMATIC TX/RX SWITCHING USING VOICE CONTROL: SSB/AM/FM MODES)

Instead of using the microphone’s PTT switch or the front panel [MOX] switch to activate the transmitter, the VOX (Voice Operated TX/RX Control) system provides hands-free, automatic activation of the transmitter, based on voice input into the microphone. Setup of the VOX system takes only a few seconds.

1.To start, set the [VOX] and [DELAY] knobs fully counter-clockwise (to the left).

2.Press the [VOX] button to engage VOX operation.

3.Speak into the microphone in a normal voice level, and rotate the [VOX] knob clockwise (to the right) until the point where your voice input activates the trans- mitter.

ADVICE:

Do not advance the setting of the [VOX] knob too much, because to do so will make the transmitter re- spond to minor background noises in your station.

4.Now stop speaking, and note the amount of time it takes for the receiver to recover. If the hang time is too long or too short; rotate the [DELAY] knob, while speaking briefly into the microphone and then pausing, so as to set the desired hang time. Clockwise rotation of the [DELAY] control will increase the hang time.

5.To exit from VOX operation, press the [VOX] button once more. We recommend doing this if you are going to leave your station, to prevent inadvertent activation of the VOX system by a ringing nearby telephone, speaker audio from a TV, etc.

[VOX] Button

[VOX] Knob

[DELAY] Knob

ADVICE:

￿The Anti-Trip setting sets the negative feedback of re- ceiver audio to the microphone, to prevent receiver audio from activating the transmitter (via the micro- phone) can be adjusts via Menu item “040 GEnE ANTIVOX.”

￿VOX operation may be engaged on either Voice modes (SSB/AM/FM) and on AFSK-based Data modes. Use Menu item “137 tGEn VOX SEL” (the selections are “niC (MIC)” and “dAtA (DATA)”).

MONITOR (SSB/AM/FM MODES)

You may listen to the quality of your transmitted signal using the Monitor feature.

1.Press the [MONI] button. The “” icon will ap- pear in the display, indicating that the Monitor is turned on.

2.During transmission, rotate the [MONI] knob to ad- just the audio level from the Monitor. Clockwise rota- tion of this knob will increase the volume level.

3.To switch the Monitor off again, press the [MONI] button once more. The “” icon will turn off, con- firming that the Monitor is now disengaged.

ADVICE:

￿If you are using the speaker for monitoring, instead of headphones, excessive advancement of the [MONI] knob can cause feedback to occur. Additionally, this feedback can cause the VOX system to hang up in a loop, making it impossible to return to receive. There- fore, we recommend the use of headphones, if at all possible, or the minimum usable setting of the [MONI] knob, if the speaker must be used.

￿Because the Monitor feature utilizes a sampling of the transmitter’s IF signal, it can be very useful for check- ing the adjustment of the Speech Processor or Para- metric Equalizer on SSB, and for checking the general signal quality on AM and FM.

[MONI] Button

[MONI] Knob

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FT-2000 OPERATING MANUAL