The KAT500 remembers its settings for each band/port combination. You can connect several antennas to a given port through external switches, but if two of those antennas are ever used on the same band, there is a danger that the KAT500's settings that work with one of the antennas will be wrong for the other antenna that you use on the same band/port combination, requiring the KAT500 to retune every time you switch between those antennas. To avoid this situation, you should try to make sure to the extent possible that on any band where you use more than one antenna, those antennas are connected to different ports on the KAT500.
Since you have three different antennas that are used on 20 and 15, you should try to ensure that those three antennas are connected to separate ports on the KAT500. That means that the LPDA, the vertical and the dipole should all be on separate ports. In your case, once you have done that the only antennas you have left are single-band antennas that you do not use on any band that is shared with any other antenna, so you can put them on whichever port you want. If you are likely to be switching back and forth between two antennas because their bands are often open at the same time, it might be best to separate those antennas to minimize the number of times you need to operate a manual antenna switch. That suggests putting the 160m inverted L on the same port as the LPDA, to minimize the amount of switching back and forth between 160 and 80/75 (where you use the other two antennas). The 6m antenna can go anywhere; wherever you are least often likely to have to switch back and forth, e.g. on the same port as the dipole. 73, Rich VE3KI WS1L wrote: When I build the KAT500, what is the best use of the 3 ports available to maximize it's tuning algorithm? In other words, how can I maximize the likelihood that a band change or QSY will result in a rapid tune due to prior memorization, versus a somewhat longer full tune? ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]

