Note
The Z-817 75-watt is and automatic tuner for QRP transceivers. It is a higher power version of the Z-817. While the Z-817H works well with any radio with a maximum power of 75 watts, it offers enhanced features when coupled with the Yaesu FT-817 QRP transceiver.
The Z-817H provides semi-automatic antenna tuning across the entire HF spectrum plus 6 meters, at power levels up to 75 watts. It will tune dipoles, verticals, Yagis, or virtually any coax-fed antenna. It will match an amazing range of antennas and impedances (up to 10 to 1 SWR), far greater than some other tuners you may have considered, including the built-in tuners on many radios.
The Z-817H is similar to previous LDG tuners, but is specially engineered to integrate with your Yaesu FT-817 HF radio and external amplifier. The Z-817H connects to the ACC port or sometimes called CAT (Computer Automated Transceiver) port on the back of the radio. The CAT interface allows an external device such as a PC or the Z-817H to control the FT-817 by sending it serial commands.
The Z-817H takes advantage of this interface to simplify the tuning process -- one button push is all that is needed in order to switch the radio to PKT mode, transmit a carrier, read the transmit frequency, and then restore the radio to its previous mode and power level.
Additionally, the Z-817H is powered by internal batteries, so no extra power cable is needed.
Specifications
• 0.1 to 75 watts SSB and CW peak power, 30 watts on PSK and digital modes and 75 watts on 6 meters. 50W max when used with non FT-817 radio.
• 1.8 to 54.0 MHz coverage. Frequency for memory storage is read from the radio via CAT.
• Tunes 4 to 800 ohm loads (16 to 150 on 6M), 16 to 3200 ohms with optional 4:1 Balun.
• Latching relays for ultra-low power operation.
• 2,000+ memories for instantaneous frequency and band changing.
• Designed specifically for the Yaesu FT-817 transceiver.
• Will also work with non-FT-817 radios, but without automation of the radio.
• Pass-thru CAT port allows Z-817H to control the FT-817 over the CAT bus while still allowing a host PC to also control the radio. Also permits seamless integration with Tokyo Hi Power HL-45B amplifier.
• Pass-thru CAT port waits for idle CAT activity before controlling the transceiver.
• For Dipoles, Verticals, Vees, Beams or any Coax Fed Antenna.
• Optional external Balun allows tuning of random length, long wire or ladder line fed antennas.
• Power: 6V power supplied from internal AA alkaline batteries.
