Ctcss Operation - Yaesu VX-5R Operating Manual

Advanced Operation
Many repeater systems require that a very-low-frequency audio tone be superimposed on
your FM carrier in order to activate the repeater. This helps prevent false activation of the
repeater by radar or spurious signals from other transmitters. This tone system, called
"CTCSS" (Continuous Tone Coded Squelch System), is included in your VX-5R, and is
very easy to activate.
CTCSS setup involves two actions: setting the Tone Frequency and then set-
ting of the Tone Mode. These actions are set up by using the [ 1 ( TN ) FRQ ]
and [ 2 ( CD ) TAG ] keys, or Menu Items #29 and #30.
Press the [ F/W ] key, then immediately press the [ 1 ( TN ) FRQ ] key. This provides a
"short-cut" to Menu #29 ("
Rotate the DIAL so that "
Encoder, which allows repeater access.
You may notice an additional "
the DIAL in this step. We'll discuss the Digital Code Squelch system shortly.
Rotation of the DIAL in step
cent to the "
SQueLch system is active, which mutes your VX-5R's receiver until it receives a call
from another radio sending out a matching CTCSS tone. This can help keep your radio
quiet until a specific call is received, which may be helpful while operating in con-
gested areas.
When you have made your selection of the CTCSS tone mode, press the
[ BAND ( SET ) AR ] key.
Now rotate the DIAL one click clockwise to select Menu #30 ("
Menu selection allows setting of the CTCSS tone frequency to be used.
Press the [ BAND ( SET ) AR ] key to enable adjustment of the CTCSS frequency.
Rotate the DIAL until the display indicates the Tone Frequency you need to be using
(ask the repeater owner/operator if you don't know the tone frequency).
Press the [ 2 ( CD ) TAG ] key to save the new settings and exit to normal operation.
Some repeaters may or may not re-transmit a CTCSS tone - some systems just
use CTCSS to control access to the repeater, but don't pass it along when trans-
mitting. If the BUSY LED
glows green, but the VX-5R is not passing
audio, repeat steps
but rotate the DIAL so that "SQL" disap-
pears - this will allow you to hear all traf-
fic on the channel being received.
26
CTCSS O
" appears on the display; this activates the CTCSS
above will occasionally cause "SQL" to appear adja-
" icon. When "
through above,
PERATION
").
" icon appearing while you rotate
" appears, this means that the Tone
6 7.0 6 9.3 7 1.9 7 4.4
8 8.5 9 1.5 9 4.8 9 7.4
11 4.8 11 8.8 12 3. 0 12 7. 3
15 1. 4 15 6. 7 16 2. 2 16 7. 9
20 3. 5 21 0. 7 21 8. 1 22 5. 7
VX-5R O
"). This
7 7.0 7 9.7 8 2.5 8 5.4
10 0. 0 10 3. 5 10 7. 2 11 0.9
13 1. 8 13 6. 5 14 1. 3 14 6. 2
17 3. 8 17 9. 9 18 6. 2 19 2. 8
23 3. 6 24 1. 8 25 0. 3 -
M
PERATING ANUAL