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Section 18-1-1, 18-1-2, 18-2
You may wish to leave certain items selected if they are not affecting current operation in order to
minimise reprogramming when slot cards are inter-changed at a later time.
18-1-2 Removing the slot card
Always switch the AR8200 off when removing a slot card. To access the
socket place the AR8200 on its back and open the front edge of the protective
door. An EJECT slider is mounted on the left hand side of the AR8200 cabinet.
With the AR8200 keypad facing upward slide the EJECT control toward the side
keys of the AR8200, the thumb is best for this purpose... hold the thumb of the
other hand one or two centimetres (one inch) from the bottom of the slot card to
prevent it shooting out of the AR8200 and falling on the floor.
The stiffness of the cards varies and may be tighter when used for the first few
times, the EJECT slider needs quite a push but don't use excessive force or
tools!
18-2 VI8200 optional voice inverter slot card
The VI8200 enables the AR8200 to recover intelligible audio from certain types of
analogue transmission which would otherwise sound scrambled. They operate by
splitting up the audio spectrum and 'flipping' the upper and lower tones around a
certain frequency point. The VI8200 enables 157 different 'flip points' to be
selected in the frequency range of 2.4 kHz to 5.6 kHz.
Insert the VI8200 slot card and switch the AR8200 on, select VFO mode.
to access the slot card option menu. The AR8200 will have
recognised that the VI8200 has been fitted so will present the voice inverter menu.
The legend "VOICE INVERT" confirms selection of the voice inverter menu.
the
keys to make selection of tone in 157 steps from 0 to 156, the
selection by 10.
To accept the data input (when audio is intelligible)
.
Refer to the relationship table between value and 'flip' frequency:
Frequency (kHz)
Inverter value
When the voice inverter has been activated and you exit from the voice inverter menu back to VFO, the
legend "v 68" will be displayed in the bottom right corner of the LCD. The legend "v" indicates that the
inverter is active while the legend "68" indicates the current 'flip' value in use.
122
key to toggle the voice inverter on/off (default on). Use the main dial or
2.4
2.8
3.2
0
37
64
3.6
4.0
4.4
4.8
86
102
116
128
keys are used to increment
, alternatively to abort entry
5.2
5.6
6.0
138
146
154
6.15
156
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Table of Contents
Troubleshooting
