Kenwood Sky Command System

Innovative concept allows the HF operator freedom to walk and talk

with handheld remote control

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.

Kenwood Sky Command : TH-79AKSS

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.

440MHz band

144MHz band

Commander (CMD)

TH-79AKSS

440MHz/144MHz (2M)

Voice signals

Control signals

HF receive audio + Voice confirmation of HF frequency

Transporter (TRP)

TH-79AKSS

440MHz/144MHz

COM

connector

MIC

ø3.5 EXT SP

PG-4R

Sky Command

Adapter

HF Antenna

HF Transceiver TS-570D/S(G)

•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.

Kenwood Sky Command II : TH-D7A

Commander (CMD)

TH-D7A

440MHz/144MHz (2M)

440MHz band

144MHz band

Voice signals Control signals

Confirmation of HF frequency

HF receive audio

Transporter (TRP)

TH-D7A

440MHz/144MHz

COM

connector

MIC

ø3.5 EXT SP

PG-4R

Sky Command

Adapter

HF Antenna

HF Transceiver TS-570D/S(G)

•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.

TS-570D(G) specifications

The Kenwood TS-570D(G) is a sophisticated transceiver that has earned a solid reputation among amateur radio enthusiasts since its introduction in the 1990s. This rig impresses with its combination of versatility, advanced features, and user-friendly design, making it a favored choice for both beginners and seasoned operators.

One of the standout features of the TS-570D(G) is its dual-band capability, allowing users to operate on both HF and 6 meters. This broad frequency coverage enables ham operators to explore various amateur bands, from 160 meters to 6 meters, making it an exceptional tool for a diverse range of communication activities.

The TS-570D(G) is equipped with a high-performance receiver, with a multi-mode capability that supports SSB, CW, AM, and FM modes. Its DSP (Digital Signal Processing) technology enhances audio clarity and signal quality, reducing noise and interference. This processing capability allows for cleaner transmissions and reception, facilitating effective communication even in crowded band conditions.

Another significant highlight of the TS-570D(G) is its built-in automatic antenna tuner, which simplifies the setup process. The tuner provides efficient matching for a variety of antenna types, allowing users to quickly get on the air with minimal hassle. This feature significantly enhances operational convenience, especially for those who frequently change frequencies or bands.

The rig comes with a large, easy-to-read LCD screen that displays important information, including frequency, mode, and signal strength. The intuitive menu system allows operators to access various settings and features effortlessly, making navigation simple even for those who may not be tech-savvy.

Additionally, the TS-570D(G) offers a comprehensive range of filtering options, including selectable bandwidths, which allow users to tailor their listening experience based on operating conditions. This customization enhances the rig's versatility, ensuring that it can adapt to various scenarios and preferences.

In terms of power output, the TS-570D(G) boasts a solid 100 watts on HF and 50 watts on 6 meters, providing sufficient power for effective long-distance communication. Its robust construction is designed to withstand the rigors of portable operation, making it a reliable choice for field day events or emergency communications.

Overall, the Kenwood TS-570D(G) is a well-rounded transceiver that encapsulates the essential features and functionalities sought after by amateur radio operators. With its dual-band capability, advanced digital processing technology, and user-friendly design, it remains a timeless choice for anyone looking to explore the world of amateur radio.