Icom IC-7410 Instruction Manual - Page 49

Keyer Set mode, Side Tone Level, Side Tone L-Limit, Repeat Time, Message Display, Dot/Dash Ratio, - weight

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4 RECEIVE AND TRANSMIT D Keyer Set mode This Set mode is used to set the CW sidetone, memory keyer repeat time, dash weight, paddle specifications, keyer type, etc. • Setting contents q In the CW mode, push [MENU] to display the "M1" screen (Menu 1). w P ush [KEY](F-4) to display the "KEY" screen (Mem- ory Keyer). e P ush [SET](F-5) to enter the Keyer Set mode. r P ush [Y](F-1) or [Z](F-2) to select the desired item. t R otate [DIAL] to select the desired option. • Hold down [F-3] for 1 second to reset to the default setting, if desired. y P ush [MENU] to save, and return to the "KEY" screen. u P ush [MENU] again to return to the "M1" screen. 1. Side Tone Level (Default: 50%) Select the CW sidetone output level. • 0 to 100% in 1% steps can be selected. 2. Side Tone L-Limit (Default: ON) Set the CW sidetone level limit. When the [AF] control is rotated above a specified level, the CW sidetone does not increase. • ON : CW sidetone level is limited. • OFF : CW sidetone level is not limited. 3. Keyer Repeat Time (Default: 2s) When sending CW using the repeat timer, this item sets the time between transmission. • 1 to 60 seconds in 1 second steps can be selected. 4. Message Display (Default: Normal) When you are in the "SEND" screen (Keyer Send), channel numbers are displayed above the function keys. However, you can display the first three characters of the keyer memory instead of the channel number. Select whether to display the channel number or the first three characters of the keyer. • Normal : Displays the channel number. • Message : D isplays the first three characters of the keyer memory. SET Side Tone Level ∫1 √ 50% Select the item Reset to the default setting 5. Dot/Dash Ratio Set the dot/dash ratio. (Default: 1:1:3.0) • 1:1:2.8 to 1:1:4.5 (in 0.1 steps) can be selected. Keying weight example: Morse code "K" Weight setting: DOT (fixed*) DASH DASH 1:1:3 (default) Weight setting: Adjusted Adjustable range SPACE (fixed*) *SPACE and DOT length can be adjusted with only [KEY SPEED]. 6. Rise Time (Default: 4ms) This item sets the rise time of the transmitted CW envelope. • 2, 4, 6 or 8 milliseconds can be selected. About rise time Key action Tx Rx Tx output power Set Tx power level 0 Rise time Time If the rise time of a CW waveform is too short, key clicks on nearby frequencies can be generated. ☞ Continued on the next page. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 42

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42
4
RECEIVE AND TRANSMIT
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5
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D
Keyer Set mode
This Set mode is used to set the CW sidetone, mem-
ory keyer repeat time, dash weight, paddle specifica-
tions, keyer type, etc.
• Setting contents
q
In the CW mode, p
ush [MENU] to display the “M1”
screen (Menu 1).
w
Push [KEY](F-4) to display the “KEY” screen (Mem-
ory Keyer).
e
Push [SET](F-5) to enter the Keyer Set mode.
r
Push [
Y
](F-1) or [
Z
](F-2) to select the desired
item.
t
Rotate [DIAL] to select the desired option.
• Hold down [F-3] for 1 second to reset to the default set
-
ting, if desired.
y
Push [MENU] to save, and return to the “KEY”
screen.
u
Push [MENU] again to return to the “M1” screen.
Side Tone Level
1.
(Default: 50%)
Select the CW sidetone output level.
• 0 to 100% in 1% steps can be selected.
Side Tone L-Limit
2.
(Default: ON)
Set the CW sidetone level limit. When the [AF] con-
trol is rotated above a specified level, the CW sidetone
does not increase.
• ON
: CW sidetone level is limited.
• OFF : CW sidetone level is not limited.
Keyer
3.
Repeat Time
(Default: 2s)
When sending CW using the repeat timer, this item
sets the time between transmission.
• 1 to 60 seconds in 1 second steps can be selected.
Message Display
4.
(Default: Normal)
When you are in the “SEND” screen (Keyer Send),
channel numbers are displayed above the function
keys. However, you can display the first three charac-
ters of the keyer memory instead of the channel num-
ber.
Select whether to display the channel number or the
first three characters of the keyer.
• Normal
: Displays the channel number.
• Message : Displays the first three characters of the
keyer memory.
Dot/Dash Ratio
5.
(Default: 1:1:3.0)
Set the dot/dash ratio.
• 1:1:2.8 to 1:1:4.5 (in 0.1 steps) can be selected.
Keying weight example:
Morse code “K”
DASH
Weight setting:
1:1:3 (default)
Weight setting:
Adjusted
DASH
DOT (fixed*)
Adjustable range
SPACE (fixed*)
*SPACE and DOT length can be
adjusted with only [KEY SPEED].
Rise Time
6.
(Default: 4ms)
This item sets the rise time of the transmitted CW en-
velope.
• 2, 4, 6 or 8 milliseconds can be selected.
About rise time
Key action
Tx output power
Rise time
Tx
Rx
Set Tx power level
Time
0
If the rise time of a CW waveform is too short, key
clicks on nearby frequencies can be generated.
☞
Continued on the next page.
∫
1
√
50%
SET
Side Tone Level
Select the item
Reset to the default
setting