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Kenwood Sky Command System
The Kenwood Sky Command System (KSS) effectively puts an HF trans-
ceiver in your hand, allowing you to relax in your lounge or backyard while
controlling the TS-570D/S(G) in your shack. Or you could be sitting at a
baseball game while operating the HF transceiver safely installed in your car.
And the new Sky Command II adds the convenience of LCD confirmation
of HF frequency.
It’s not just freedom you’ll enjoy: KSS is simple and intuitive, yet amaz-
ingly powerful. Once the Transporter (TH-79AKSS or TH-D7A)* has been
wired to your TS-570D/S(G) HF transceiver, all you need to carry is the
second handheld (the Commander). The Commander transmits control
signals to the Transporter, which also relays your voice to the HF radio. In
return, HF signals are transmitted back to the Commander. This system
allows you to transmit and receive HF signals, set frequencies, switch
memory channels, and much more — all from your handheld transceiver.
* Sky Command requires two TH-79AKSS units,
while Sky Command II uses a pair of TH-D7A transceivers.
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Kenwood Sky Command
Employing a pair of TH-79AKSS transceivers as Commander and Transporter,
the Kenwood Sky Command system has proved extremely effective in freeing
the HF operator from his shack. The DTMF keys enable simple pushbutton
operation of all major parameters on the TS-570D/S(G). And if the optional
VS-3 voice unit is added, you can enjoy audible confirmation of the frequency
setting. You can thus hunt DX while working around the house or garden.
Kenwood Sky Command II
Sky Command II enables full-duplex operation, adding some extra features
that further enhance functionality. For example, you can confirm HF
frequency visually on the LCD panel of the Commander (TH-D7A).
Control is effected via TNC (AX.25), and now even more HF functions are
accessible: XIT, mode switching (USB, FM, etc.), split-frequency operations
on/off, memory shift, and frequency step selection. In addition, once every
10 minutes, the Transporter (TH-D7A) will send out its pre-programmed
call sign via CW.
Voice signals
Control signals
HF receive audio +
Voice confirmation of
HF frequency
440MHz band
144MHz band
Confirmation of
HF frequency
440MHz band
HF receive audio
144MHz band
• The operator controls the TS-570D/S(G) HF transceiver from the portable Commander
(CMD) TH-79AKSS.
• Voice is transmitted from the CMD unit on the 440MHz band.
• Control signals are also sent from the CMD unit on the 440MHz band.
• The received HF signal is re-transmitted by the Transporter (TRP) TH-79AKSS
on the 2M band.
• With an optional voice unit (VS-3) installed in the TS-570D/S(G) HF transceiver,
the operator can confirm the HF frequency.
• The operator controls the TS-570D/S(G) HF transceiver from the portable Commander
(CMD) TH-D7A.
• Voice is transmitted from the CMD unit on the 440MHz band.
• Control signals are sent from the CMD unit on the 440MHz band.
• The received HF signal is re-transmitted by the Transporter (TRP) TH-D7A on the 2M band.
• The operator can confirm the HF frequency on the LCD of the CMD.
Kenwood Sky Command : TH-79AKSS
Kenwood Sky Command II : TH-D7A
Commander (CMD)
TH-79AKSS
440MHz/144MHz (2M)
Commander (CMD)
TH-D7A
440MHz/144MHz (2M)
440MHz band
Voice signals
Control signals
Transporter (TRP)
TH-79AKSS
440MHz/144MHz
PG-4R
Sky Command
Adapter
HF Transceiver
TS-570D/S(G)
HF Antenna
COM
connector
ø3.5 EXT SP
MIC
Transporter (TRP)
TH-D7A
440MHz/144MHz
PG-4R
Sky Command
Adapter
HF Transceiver
TS-570D/S(G)
HF Antenna
COM
connector
ø3.5 EXT SP
MIC