Voice Mode VOX Setup
VOX selects push-to-talk (PTT) or voice-operated
(VOX) transmit (VOX icon on). VOX hold time is
set with DELAY (pg 14).
MAIN:VOX GN (VOX gain) should be set to
trigger at normal speech level, but not in response
to incidental noise. Start with low settings (5-10).
MAIN:ANTIVOX sets VOX immunity to RX audio.
With the mic closer to the speaker than normal,
increase ANTIVOX until the K3S doesn’t switch to
TX mode when listening to a loud signal.
SSB/CW VFO Offset
The K3S can automatically offset the VFO
frequency when you switch from SSB to CW mode,
so other stations will hear the correct CW pitch. See
CONFIG:CW WGHT for details.
Digital Voice Recorder (DVR)
With the KDVR3 installed, you can record and play
voice messages as well as capture received audio.
Transmit Message Record and Playback
Tap REC to start recording, then tap any of M1 -
M4 . Remaining buffer time will be displayed as
you speak. Tap REC again to end, or CLR to erase.
Tap M1 – M4 to play. To cancel, tap REC . If
you wish to manually assert PTT when using the
DVR, see CONFIG:KDVR3. MIC gain has no
effect during message play; the gain setting at
record time is used. However, DVR monitor level
can be set separately (see CONFIG:TX DVR).
To auto-repeat, hold (rather than tap) M1 – M4.
MAIN:MSG RPT sets the interval (1-255 seconds).
Hold REC to select bank 1 or 2 (4 messages each).
Receive Audio Record and Playback
Hold AF REC to start/stop record. The
icon
will flash slowly while recording. Only the last 90
seconds of audio will be available for playback.
Hold AF PLAY to start/stop play. The
icon
will flash quickly during play. A seconds counter
will be displayed on VFO B, along with an asterisk
(*) if you’re within the most recent segment.
Rotating VFO B adjusts the playback position.
Transmit Noise Gate
The noise gate function mutes mic audio below a
selected threshold; this may be useful in noisy
environments. See CONFIG:TX GATE for details.
AM Operation
A 6 kHz (AM) or 13 kHz (FM) crystal filter is
required for AM transmit (pg. 49). Use 2.7 to 13
kHz filters for AM receive (6 kHz recommended).
ALT switches from envelope detection to sync
detection (AM-S). Sync AM can improve copy
during selective fading. When AM-S is in effect,
rotating SHIFT selects the upper or lower
sideband; one or the other may improve copy.
VFO A can automatically track AM signals in AM-
S mode. This can be useful when listening to
signals mistuned from a nominal frequency. Tap
SPOT to zero in on an AM signal one time; tap
CWT for full-time tracking (T icon turns on).
Use SPLIT if you don’t want your transmit
frequency to change during auto-tracking.
You can also listen to AM using LSB or USB
modes. A 2.7 or 2.8 kHz filter will work well.
FM Operation
An FM crystal filter (at FL1) is required on the RF
board and/or sub receiver for FM use; see pg. 48.
FM mode can be disabled by setting
CONFIG:FM MODE to OFF.
To setup for repeater use:
• Hold ALT to select simplex, TX up (+ icon), or
TX down (- icon). If an offset is in effect, REV
swaps RX/TX frequencies and offset direction.
• Set up repeater offsets with MAIN:RPT OFS,
and VFO step size using CONFIG:VFO CRS.
• Hold PITCH to set up tone encode. VFO A
selects pitch in Hz; VFO B turns tone encode
on or off. If 1750 Hz is selected (for European
repeaters), an 0.5-s tone burst is sent at the start
of each transmission if squelch wasn’t already
open. Or, you can hold PITCH during TX to
manually generate a tone burst of any length.
• To see up voice and PL tone deviation, use
CONFIG:FM DEV.
To Next Page
Loading...
