Receiving) – Kenwood TS-850S User Manual
Page 33
Attention! The text in this document has been recognized automatically. To view the original document, you can use the "Original mode".
4-8. PACKET(AFSK) OPERATION
METER key
Used to select the d(
meter function in transn
AlP switch
When switched on
it
reduces interference
from
strong signals.
THRU/AUTO switch
THRU: Antenna tuner is off.
AUTO: Antenna tuner is on.
AGO switch
Normally set to FAST.
PWR control
Power can be controlled in
all modes.
FINE key
Makes one turn of t
knob equal 1 kH
step) to facilitate tur
(RECEIVING)
[~n Connect the communication terminal signal line to the ACC2 connector on the rear.
[
2
] Turn on the DC power supply and then turn the transceiver’s power switch ON.
A frequency is shown in the display.
Q Press the UP/DOWN switches to select the desired frequency band.
When the 1 MHz step position is selected, the MHz indicator will light.
Select LSB or USB with the MODE key.
16 I Turn the AF gain control clockwise until a signal or noise is heard.
p7] Rotate the TUNING knob and select an open channel.
Since AFSK using the SSB mode is normally used for 300 baud packet transmissions, the AFSK signal is applied to
the MIC signal line. This is possible in both the USB and LSB modes, but the frequency of the signal that is actually
transmitted is the display frequency plus the modulation frequency in USB mode, and the display frequency minus
the modulation frequency in LSB mode. Since various modulation frequencies are used by different TNC’s, you
should determine the correct operating frequency, taking the AFSK frequency of the TNC that you are using into
consideration when performing your calculations.
28