TOP Panel Access & Controls

The following controls are accessible beneath the removable panel on the top half of the transceiver case. Push the slide rearward and pry up the lid to expose the ALC UNIT circuit board and potentiometer controls. Most control settings are preset at the factory for nor- mal operation. Should you desire to change a particu- lar setting, use a small insulated screwdriver to rotate the desired potentiometer.

1. HPA-S

This control sets the audio level available from the sub receiver to headphone jack A (3.5 mm plug).

6. FM MIC

During FM operation, this control adjusts the mi- crophone gain (and transmitter deviation). More clock- wise settings produce a wider bandwidth signal.

NOTE: This control has been preset at the factory to produce the correct deviation with standard micro- phone levels. A deviation meter should be connected for proper readjustment, as it is difficult to determine the proper setting by ear. Remember that maximum deviation permitted on HF is ±2.5 kHz.

7. VOX

2. HPA-M

This control sets the audio level available from the main receiver to headphone jack A (3.5 mm plug).

This control sets the gain of the VOX circuit, to set the level of microphone audio needed to activate the transmitter during voice operation while the VOX but- ton on the front panel is depressed.

3. HPB-S

This control sets the audio level available from the sub receiver to headphone jack B (¼-inch plug).

4. HPB-M

This control sets the audio level available from the main receiver to headphone jack B (¼-inch plug).

8.DELAY (VOX Delay)

This control sets the hang time of the VOX circuit, between the moment you stop speaking, and the auto- matic switch from transmit back to receive. Adjust this for smooth VOX so the receiver is only activated when you want to listen.

5. TUN-M

This control adjusts the tuning meter segment indi- cations.

Do not adjust this control, by mistake, as this control will adversely affect meter tuning indica- tion, and requires factory re-alignment!.

9.A-VOX(ANTI-VOX TRIP)

This control sets the level of negative feedback of receiver audio to the microphone, to prevent receiver audio from activating the transmitter (via the micro- phone) during VOX (voice-actuated transmit/receive switching) operation. Adjustment is described in the Operation chapter.

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Vertex Standard FT-1000MP manual TOP Panel Access & Controls