Specifications

19
the electronics compartment and can be observed after removing the lower battery
compartment. The VOX control (Fig. 6, #1) will rotate two times and then stop.
Rotation in the clockwise direction increases the sensitivity. If a VOX high setting
is too sensitive causing false triggering, rotate counterclockwise until a good setting
is found (see Figures 7–9 for a graphic look at the effect of rotating the adjustment
control). Divers should use a low VOX setting when using an ME-16R Hot-Mic
®
.
A higher setting should be used if the microphone-mask combination causes the
microphone to be further than a quarter inch from the diver’s lips. Figures 7–9
illustrate the relationship between the number of turns and sensitivity. CAUTION:
Do not force the control past the stop point, or damage will occur!
6.3 SQUELCH: The squelch control (labeled “SQ” in Figure 6) allows
the squelch level to be varied. When the squelch is on, the control acts like the
squelch control on a CB radio. The squelch adjustment control is a two-turn type.
Clockwise turns from the beginning point (full counterclockwise rotation) will
make the unit apply more squelch. The more you apply squelch, the quieter the unit
becomes; however, the range is reduced (Figures 10–12). The factory preset “ON”
Note for Figures 7–9: The graphs show the variance in VOX sensitivity with turns
of the VOX control. A fully counterclockwise rotation is indicated by 0, and a fully
clockwise rotation (two turns) by 10.
Note: This setting will give you a medium VOX sensitivity setting when set at High.
This is our factory preset setting.
Figure 7
Graph shows VOX setting at 1 turn clockwise.
0 1 2 3 4 5 6 7 8 9 10
Note: VOX will trigger easily and may falsely trigger.
0 1 2 3 4 5 6 7 8 9 10
Figure 8
Graph shows VOX setting at 1-1/2 turns clockwise.
0 1 2 3 4 5 6 7 8 9 10
Note: We recommend this setting for less sensitive microphones.
Graph shows VOX setting at 2 turns clockwise.
Figure 9
0 1 2 3 4 5 6 7 8 9 10