Note
Kit or assembled.
The KAT500 Automatic Antenna Tuner is designed to be closely integrated with the Elecraft K3 transceiver and the Elecraft KPA500 amplifier although it may be easily used with other transceivers and amplifiers. Features include:
– Automatic band switching, covering the spectrum from 1.8 through 54 MHz.
– Automatic antenna switching to connect one of three antennas according to the band selected.
– L and C settings for lowest SWR are stored in memory for extremely rapid frequency and band changes.
– Robust self-protection circuits that guard against damage from switching high-power RF or trying to match loads outside of its tuning range.
– Static bleed resistor built in to avoid damage from normal static buildup on antennas.
• Low profile enclosure that matches the footprint of the KPA500 and K3, allowing the KAT500 to be placed on top or under either unit (the KAT500 is designed to support the weight of the KPA500.
Specifications
– Frequency Range 1.8 to 54 MHz, continuous.
– Supply Voltage and Current: 11 to 15 VDC, 1.0 A max (200 mA typical).
Typical Matching Range and Power Limits:
3 — 30 MHz
600 W into 5 Ω to 500 Ω (10:1 SWR)
1000 W into 16 Ω to 150 Ω (3:1 SWR)
1.8 — 2 MHz
600 W into 10 Ω to 500 Ω (5:1 Low Impedance, 10:1 High Impedance SWR)
30 — 60 MHz 500 W into 5:1 SWR (10 Ω to 250 Ω)
– Autotune Power Range 7 W —100 W.
(For better matching accuracy, tune with >20 W)
