The KAT500-k is a new high power autotuner that can be used with both the K3/KPA500.

The KAT500-K uses the same topology and high performance tuning algorithms as the popular 100W autotuner in the K3. Typical matching range at 500 W is up to 10:1 on most bands. (slightly less on 160m and 6M). This also equates to a range of 3:1 for higher power levels, up to 1000 W.

The KAT500-K has a front panel SWR display and three selectable antenna outputs. It is the same width and depth as the K3 and the KPA500, and it is just 1.5" high

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 tuning element 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 K3S, allowing the KAT500 to be placed on top or under either unit (the KAT500 is designed to support the weight of the KPA500)
• Weight: 4.6 pounds ( 2.1 kg )