K6XX is built on a long, semi-U-shaped bench. It allows using up to six simultaneous HF transmitters. Standing behind the operators, the rigs are arranged as follows: Station 4; Station 2 (A and B), Station 3; Station 1 (A and B); and Station 5. Stations 1 and 2 are set up for SO2R operation.
Antennas are automatically routed to the proper station by a custom relay-switched system. Band data is read from each transmitter and a bank of antennas suitable for that band are connected. The operator need only select one or more directions in which to beam from a choice of five fixed and one rotatable antennas per band. Any station may use any antenna not used by another station.
This is station 1A and 1B. It consists of an FT-1000MP "Field" to an Alpha 91b and a FT-1000MP mkV to an AL-1500.
Here's Station 2A and 2B. This one is a pair of 1000MPs to an Alpha 76A or an AL-1200.
Here's Station 3. Lots of junk here! There's a TS-950, a Drake C-Line, an FT-857, a DX-100B/R390 combo, and miscellaneous VHF/UHF rigs. Only one of these HF rigs may be operated at one time, through a manual switch. The '950 & '857 communicate their band data to the master antenna routing system.
And Station 4. This is a TS-930 and a 500W solid-state amplifier.
Station 5 is crammed onto the far right-hand edge of the bench, next to station 1. It isn't shown since its antenna connection is generally used by one of the SO2R stations.
Oh, and there are a few antennas as well... Here you see the hard-line runs entering the shack through the plate-aluminum ground windows. The ground windows (plural, because the building would be structurally unsound if one large window was constructed) are bonded together inside the shack and are connected to the outdoor ground system. Regardless of how ugly it looks, it works OK... honest.
