Yaesu Musen Co. Ltd. FT-2800M ユーザーズマニュアル
FCC ID: K66FT-2800M
OPERATING MANUAL
Vertex Standard Co., Ltd.
18
1. Press and hold the [MHz(SET)] key for one second, then rotate the DIAL knob to
select “28 SQ TYP”.
2. Press the [MHz(SET)] key, then rotate the DIAL knob so that “T ENC” appears on
the display; this activates the CTCSS Encoder, which allows repeater access.
R. F. Says: You may notice an additional “DC ENC” and “DCS” appearing while you
rotate the DIAL knob in this step. We’ll discuss the Digital Code Squelch system
shortly.
rotate the DIAL knob in this step. We’ll discuss the Digital Code Squelch system
shortly.
3. Rotating the DIAL knob one more click clockwise in above step will cause “TSQ” to
appear. When “TSQ” appears, this means that the Tone Squelch system is active,
which mutes your FT-2800M’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 congested areas.
which mutes your FT-2800M’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 congested areas.
4. When you have made your selection of the CTCSS tone mode, press the [MHz(SET)]
key momentarily, then rotate the DIAL knob one click counter-clockwise to select
Menu #27 (SQ TNF). This Menu selection allows setting of the CTCSS tone
frequency to be used.
Menu #27 (SQ TNF). This Menu selection allows setting of the CTCSS tone
frequency to be used.
5. Press the [MHz(SET)] key to enable adjustment of the CTCSS frequency.
6. Rotate the DIAL knob until the display indicates the Tone Frequency you need to be
6. Rotate the DIAL knob until the display indicates the Tone Frequency you need to be
using.
7. When you have made your selection, press and hold the Press the [MHz(SET)] key
for one second to save the new setting and exit to normal operation.
R. F. Says: Your repeater 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 transmitting.
If the S-Meter deflects, but the FT-2800M is not passing audio, repeat steps “1” through
“3” above, but rotate the DIAL knob so that “T ENC” appears - this will allow you to
hear all traffic on the channel being received.
use CTCSS to control access to the repeater, but don’t pass it along when transmitting.
If the S-Meter deflects, but the FT-2800M is not passing audio, repeat steps “1” through
“3” above, but rotate the DIAL knob so that “T ENC” appears - this will allow you to
hear all traffic on the channel being received.
DCS Operation
Another form of tone access control is Digital Code Squelch, or DCS. It is a newer, more
advanced tone system which generally provides more immunity from false paging than
does CTCSS. The DCS Encoder/Decoder is built into your FT-2800M, and operation is
very similar to that just described for CTCSS. Your repeater system may be configured
for DCS; if not, it is frequently quite useful in Simplex operation if your friend(s) use
transceivers equipped with this advanced feature.
R. F. Says: Just as in CTCSS operation, DCS requires that you set the Tone Mode to
DCS and that you select a Tone Code.
Another form of tone access control is Digital Code Squelch, or DCS. It is a newer, more
advanced tone system which generally provides more immunity from false paging than
does CTCSS. The DCS Encoder/Decoder is built into your FT-2800M, and operation is
very similar to that just described for CTCSS. Your repeater system may be configured
for DCS; if not, it is frequently quite useful in Simplex operation if your friend(s) use
transceivers equipped with this advanced feature.
R. F. Says: Just as in CTCSS operation, DCS requires that you set the Tone Mode to
DCS and that you select a Tone Code.