Vertex Standard VX-1210 Manual De Instrucciones página 15

Advanced Operation
D
ESCRIPTION OF
TELCALL Function
Enables/disables the TELCALL Function (dialing for Autopatch,) if the optional SELCALL
Unit is installed. Details for the TELCALL function are described on page 16.
Squelch on/off
Turn the assigned TOGGLE switch to the "upper" position to keep the receiver quiet
until a signal is received. Turn the assigned TOGGLE switch to the "lower" position to
"open" the RF squelch manually, allowing you to listen for very weak signals.
To Adjust the Squelch threshold level:
1. Rotate the SEL knob to select a clear channel (where no signals are present).
2. Turn the TOGGLE switch (assigned to the "Squelch on/off" feature) to the "up-
per" position.
3. Press and hold in the SEL knob for 5 seconds to enable modification of the squelch
threshold level.
4. Rotate the SEL knob to the point where the background noise just disappears; this
is point of maximum sensitivity to weak signals.
5. Press the SEL knob momentarily to save the new setting and exit to normal opera-
tion.
Speaker Select
Switches the audio output between the internal speaker or the optional MH-50
Microphone.
14
TOGGLE S
[ J3E ( LSB/USB ) MODE ONLY )]
F
WITCH UNCTIONS
VX-1210 O
PERATING
Speaker/
B7A
M
ANUAL