Front Panel Controls

1.POWER Button

This button turns the transceiver on and off.

2. MOX & VOX Buttons

[MOX] may be used in place of a microphone PTT switch or CW key to activate the transmitter, when de- pressed. It must be in the undepressed position for reception.

[VOX] enables automatic voice-actuated transmit- ter switching in the SSB, AM and FM modes, and “semi- break-in” keying in CW mode. The controls affecting VOX operation are located in the top access panel. Menu Selection 7-5sets the receiver recovery time dur- ing semi-break-in CW operation.

3.AGC Selector Knob

Selects main receiver Automatic Gain Control de- cay time for most comfortable reception, or disables receiver AGC (off). Normally this switch is set to the “AUTO” position. Strong signals will cause distortion if this selector is set to “OFF.”

4. PHONES Jack

A ¼-inch and 3.5 mm, 3-contact jack accept either monaural or stereo headphones with 2- or 3-contact plugs. When a plug is inserted, the loudspeaker is dis- abled. With stereo headphones such as the optional YH-77STA, you can monitor both receiver channels at the same time during dual reception. In this case, the headphone HP controls (page 32) beneath the top ac- cess panel adjust the levels for mixed, separate, or monaural headphone operation.

5.KEY Jack

This ¼-inch, 3-contact jack accepts a CW key or keyer paddles (for the built-in electronic keyer), or out- put from an external electronic keyer. You cannot use a 2-contact plug in this jack (to do so produces a con- stant “key down” condition). Pinout is shown on page

4.Key up voltage is 5 V, and key down current is 0.5 mA. There is another jack with the same name, con- nected in parallel with this jack, on the rear panel.

6. MIC PROC Knob

The inner MIC control adjusts the microphone in- put level for (non-processed) SSB and AM transmis- sion.

The outer PROC control sets the compression (in- put) level of the transmitter RF speech processor in the SSB modes, when activated by the button with the same name.

7.MIC Jack

This 8-pin jack accepts input from the MH-31B8DMicrophone. MIC connector pinout is shown on page

4.Proper microphone input impedance is 500 ~ 600 Ohms.

page 22

Vertex Standard FT-1000MP manual Front Panel Controls