48
FT-847 O
PERATING
M
ANUAL
E
LECTRONIC
K
EYER
O
PERATION
The FT-847’s built-in electronic keyer is flexible, yet easy to use.
OPERATION
CW T
RANSMISSION
•
Insert your key’s ¼” three-conductor (“stereo”) plug
into the
KEY
jack on the rear panel of the trans-
ceiver. Remember that the Tip of this plug is the
“Dot” key lead, the Ring connector is the “Dash”
lead, and the main shaft is Ground.
‚
Set the applicable controls as follows:
MODE
:
CW
PROC/KEYER
:
On
(the “
KEYER
” icon should
appear on the LCD)
KEYER SPEED
: 12 o’clock position
RF PWR
:
Fully Clockwise
MONI
:
On
ƒ
When you press your thumb against your keyer
paddle, a string of Dots will be generated by the
K
EYER
. Rotate the
KEYER SPEED
control to set
the desired sending speed.
„
You may adjust the sidetone pitch, sidetone vol-
ume, and receiver recovery time as described in
the previous section.
…
The K
EYER
’s Weighting (Dash:Dot ratio) may be
adjusted via Menu #7, although the default 3:1 ra-
tio should normally be used. See page 84 if you
need to make this adjustment.
CW S
POT
F
EATURE
During CW operation, it is useful to be able to zero in
precisely to the other station’s frequency. The CW S
POT
feature of the FT-847 makes this task simple.
During CW operation, press the
[
T.CALL
(
l
)] key; you will hear a solid
tone in the speaker. The pitch of this
tone corresponds to the pitch of your
signal as heard by another station rela-
tive to your current operating frequency (i.e. it is the
tone at which you are transmitting). The pitch of this
tone (and the BFO offset for the receiver, etc.) may be
aligned via Menu #06 (see page 84).
If you align the pitch produced by the S
POT
function to
be exactly the same as the pitch of an incoming CW
signal, you will precisely zero-beat to the other sta-
tion.
Note that the BFO offset is compensated for by the
microprocessor when you switch between CW (USB
injection) and CW (LSB injection). So unless you have
the IF S
HIFT
control grossly mis-aligned, you can never
find yourself “spotted” on the “wrong” sideband.
