Vertex Standard FT-950 manual Using CW Reverse, CW Delay Time Setting

FT-950

Operating Manual

Using CW Reverse

If you experience a difficult interference situation, where an interfering station cannot readily be eliminated, you may wish to try receiving using the opposite sideband. This may throw the interfering station’s frequency in a direction that may lend itself more readily to rejection.

1.To start, let’s use a typical example where you have set the CW mode (using the default “USB” injection).

2.Now be sure your mode selection is still set for the VFO-A, and press the [CW] mode button once more. The “CW” and “LSB” icons will appear in the display, indicating that the “LSB” injection side has now been selected.

3.Press the [CW] mode button once more to return to the normal (USB) injection side and cancel CW Reverse operation (the “CW” and “USB” icons will appear in the display).

In the illustration, Figure A demonstrates the normal CW injection setup, using the USB side. In Figure B, CW Reverse has been engaged, so as to receive using LSB-side injection to eliminate interference.

The beneficial effect of switching sidebands can clearly be seen in this example.

Notes:

When CW Reverse is engaged, the Tuning Offset Indicator action will concurrently be reversed as to its indication.

When the incoming signal pitch tone is properly aligned, the central red marker lights up whether or not CW Reverse is engaged.

CW Delay Time Setting

During semi-break-in (not QSK) operation, the hang time of the transmitter, after you have finished sending, may be adjusted to a comfortable value consistent with your sending speed. This is the functional equivalent to the “VOX Delay” adjustment used on voice modes, and the delay may be varied anywhere between 30 msec and 3 seconds via the Menu item “044 A1A DELAY”.

1.Press the [BK-IN] button to enable CW transmission (Menu item “043 A1A BK-IN” must be set to “SEni”).

2.Press the [MENU] button to enter the Menu mode.

82 Vertex Standard Co., Ltd.