478466
30
Zoom out
Zoom in
Previous page
1/84
Next page
28 FT-7900R OPERATING MANUAL
CTCSS TONE FREQUENCY
(
Hz
)
67.0 69.3 71.9 74.4 77.0 79.7
82.5 85.4 88.5 91.5 94.8 97.4
100.0 103.5 107.2 110.9 114.8 118.8
123.0 127.3 131.8 136.5 141.3 146.2
151.4 156.7 159.8 162.2 165.5 167.9
171.3 173.8 177.3 179.9 183.5 186.2
189.9 192.8 196.6 199.5 203.5 206.5
210.7 218.1 225.7 229.1 233.6 241.8
250.3 254.1 ––––
CTCSS 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 FT-7900R, and is
very easy to activate.
CTCSS setup involves two actions: setting the Tone Mode and then setting of the
Tone Frequency. These actions are set up by using the [TONE(REV)] key and Set
mode #44 (TN FRQ).
1. Press the
[
TONE
(
REV
)]
key several times, so that
ENC” appears on the display; this activates the CTCSS
Encoder, which allows repeater access.
1) You may notice an additional “DCS” icon appearing while you press the
[
TONE
(
REV
)]
key in this step. We’ll discuss the Digital Code Squelch system
shortly.
2) You may notice the “REV TN” indication on the display; this means that the Re-
verse Tone Squelch system is active, which mutes your FT-7900Rs receiver when it
receives a call from the radio sending a matched CTCSS tone. The “DEC” icon will
blink on the display when the Reverse Tone Squelch system is activated.
2. Pressing the
[
TONE
(
REV
)]
key once more in above step will cause “ENC DEC” to
appear. When ENC DEC” appears, this means that the Tone Squelch system is active,
which mutes your FT-7900Rs 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 congested areas.
3. When you have made your selection of the CTCSS tone
mode, press and hold in the
[
BAND
(
SET
)]
key for 1/2
second to enter the Set mode, then rotate the DIAL knob
to select Menu #44 (
TN FRQTN FRQ
TN FRQTN FRQ
TN FRQ). This Menu selection allows setting of the CTCSS tone
frequency to be used.
4. Press the
[
BAND
(
SET
)]
key momentarily
to enable adjustment of the CTCSS fre-
quency.
5. Rotate the
DIAL knob
until the
display indicates the Tone Frequency you
need to be using.
6. When you have made your selection, press
CTCSS/DCS OPERATION
30


Need help? Post your question in this forum.

Forumrules


Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

For example, Anti-Semitic content, racist content, or material that could result in a violent physical act.

For example, a credit card number, a personal identification number, or an unlisted home address. Note that email addresses and full names are not considered private information.

Forumrules

To achieve meaningful questions, we apply the following rules:

Register

Register getting emails for Yaesu FT-7900R at:


You will receive an email to register for one or both of the options.


Get your user manual by e-mail

Enter your email address to receive the manual of Yaesu FT-7900R in the language / languages: English as an attachment in your email.

The manual is 2,87 mb in size.

 

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.



Info