Vectronics VEC-884 User Manual

Page 50

VEC-884 Owner's Manual

Advanced Features Error! Main Document Only.-10

Setting the CW Sidetone Filter
If you do not have a XMIT/RECEIVE connection and wish to pass CW sidetone
through the DSP, you must enable this filter. This is not the preferred method
to pass sidetone, see page 2-5. The CW sidetone filter is a jumper
programmable internal constant frequency filter. It only works in the Tunable
CW mode. Any signal within 30 Hz of the sidetone frequency will pass through
this filter.

To enable the CW sidetone filter, program it to the sidetone frequency of your
radio. The center frequency of the sidetone filter ranges from 300 Hz to
1000 Hz in 50 Hz increments. The bandwidth of the sidetone filter is fixed at
50 Hz. See the chart below for jumper settings.

The DSP unit is shipped with the CW sidetone filter set to "off." If you wish to
disable the filter, program it with all four jumpers in the "H" position.

To set the CW sidetone filter:

1. Disengage the Power button

and

remove the power plug.

2. Remove the unit's cover.
3. Set the jumpers for the selected

sidetone filter.

4. Turn the Filters switch to CW.
5. Reconnect the power cable.
6. Press and hold the Program

button.

7. Press and lock the Power

button to "on."

8. The unit will beep at the new

sidetone pitch until the
Program button is released.

9. Disengage the Power button

and

remove the power plug.

10. Set the jumpers back to the Talk

tone frequency and Morse code
speed.

11. Replace the unit's cover.
12. Reconnect the power cable and resume normal operation.

JMP

Sidetone

Frequency

L L L L 300

L L L H 350

L L H L 400

L L H H 450

L H L L 500

L H L H 550

L H H L 600

L H H H 650

H L L L 700

H L L H 750

H L H L 800

H L H H 850

H H L L 900

H H L H 950

H H H L 1000

H H H H * OFF

* Factory programmed