Icom IC-7600 Instruction Manual - Page 71

■ Data mode (AFSK) operation, For your information - pair

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4 RECEIVE AND TRANSMIT ■ Data mode (AFSK) operation When operating AMTOR or PACKET with your TNC and/or PC software, consult the manual that comes with the TNC and/or the software. q C onnect a PC and TNC to the transceiver. (p. 22) w Push a band key to select the desired band. e P ush [SSB] or [AM/FM] to select the desired oper- ating mode. r P ush and hold [SSB] or [AM/FM] that is pushed in step e for 1 sec. to turn data mode ON. • One of "-D1," "-D2" or "-D3" is additionally appears. • During data mode selection, push and hold [SSB] or [AM/FM] for 1 sec. to select data mode 1 (D1), 2 (D2) and 3 (D3) in sequence. t R otate the main dial to tune to the desired signal and decode it correctly. • Also use the tuning indicator of the TNC or software. • During SSB data mode, the 1⁄4 tuning function can be used for critical tuning. y Operate the PC (software) or TNC to transmit. • When operating in SSB data mode, adjust the TNC output level so that the ALC meter reading doesn't go outside the ALC zone. NOTE: When data mode is selected, the audio input from the [ACC1] (pin 4) is used for transmis- sion instead of [MIC]'s depending on the set mode settings. Modulation input connector can be changed in ACC set mode (p. 124) The fixed condition is used for SSB data transmis- sion as follows: • [COMP] : OFF • Tx bandwidth : MID* • Tx Tone (Bass) : 0 • Tx Tone (Trebles) : 0 *Fixed to the default value (lower: 300, higher: 2700). (p. 122) ✔ For your information Carrier frequency is displayed when SSB data mode is selected. See the diagram at right for the tone-pair example. Band keys SSB Appears AM/FM Main dial • Tone-pair example 2325 Hz 200 Hz 2125 Hz Carrier frequency (displayed frequency) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 64

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■
Data mode (AFSK) operation
When operat±ng AMTOR or PACKET w±th your TNC
and/or PC software, consult the manual that comes
w±th the TNC and/or the software.
q
Connect a PC and TNC to the transce±ver. (p. 22)
w
Push a band key to select the des±red band.
e
Push
[SSB]
or
[AM/FM]
to select the des±red oper-
at±ng mode.
r
Push and hold
[SSB]
or
[AM/FM]
that ±s pushed ±n
step
e
for 1 sec. to turn data mode ON.
• One of “-D1,” “-D2” or “-D3” ±s add±t±onally appears.
•
Dur±ng data mode select±on, push and hold
[SSB]
or
[AM/FM]
for 1 sec. to select data mode 1 (D1), 2 (D2)
and 3 (D3) ±n sequence.
t
Rotate the ma±n d±al to tune to the des±red s±gnal
and decode ±t correctly.
• Also use the tun±ng ±nd±cator of the TNC or software.
• Dur±ng SSB data mode, the
1
⁄
4
tun±ng funct±on can be
used for cr±t±cal tun±ng.
y
Operate the PC (software) or TNC to transm±t.
•
When operat±ng ±n SSB data mode, adjust the TNC
output level so that the ALC meter read±ng doesn’t go
outs±de the ALC zone.
NOTE:
When data mode ±s selected, the aud±o
±nput from the [ACC1] (p±n 4) ±s used for transm±s-
s±on ±nstead of [MIC]’s depend±ng on the set mode
sett±ngs. Modulat±on ±nput connector can be
changed ±n ACC set mode (p. 124)
The f±xed cond±t±on ±s used for SSB data transm±s-
s±on as follows:
• [COMP]
: OFF
• Tx bandw±dth
: MID*
• Tx Tone (Bass)
: 0
• Tx Tone (Trebles) : 0
*F±xed to the default value (lower: 300, h±gher:
2700). (p. 122)
✔
For your information
Carr±er frequency ±s d±splayed when SSB data mode
±s selected.
See the d±agram at r±ght for the tone-pa±r example.
Main dial
Band keys
AM/FM
SSB
Appears
• Tone-pair example
200 Hz
2125 Hz
2325 Hz
Carrier frequency
(displayed frequency)
64
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