When I set my station up for single-tower SO2R, I was concerned about what would happen when I split my tribander stack, and when I operated on 40 and 15. I had bandpass filters but figured that at some time I would make an expensive mistake, so I cobbled up a receiver protector. Details and a schematic are at <http://pvrc.org/~n4zr/Articles/Simple%20Protection%20for%20the%20Fledgling%20SO2R%20Station.pdf>. Should cost you only a few bucks.
73, Pete N4ZR The World Contest Station Database, updated daily at www.conteststations.com The Reverse Beacon Network at http://reversebeacon.net, blog at reversebeacon.blogspot.com, spots at telnet.reversebeacon.net, port 7000 On 3/2/2011 8:38 PM, w0ih wrote: > My next door neighbor is a ham and recently upgraded to a Icom 7700, 200 > watt. > > The antennas for my K3 are pretty close to his. I have a set of dipoles > (160, 75, 60 that share a common feedline) that are about 30 feet off one > leg from the neighbor's HyTower (75 thru 10 full size vertical). I have a > TH11DX up at 50 feet (boom is loaded for 40 meters also, separate feedline) > and he has a TH5DX at very close to the same level, directly east of my > tower, about 100 feet away. > > I have a Heathkit SB 220 amp (2 kw input?). Neighbor runs barefoot for now. > > So, my question is, do I need to be concerned about damage to either rig? > I'm assuming that we can't operate the same bands at the same time. Our > operating schedules seem to be very different for now. But I'm wondering if > there could be input damage from one operating on any band, even if the rig > is off. > > I was wondering if the K3 input is grounded through a relay when turned off, > and similarly on the 7700. > > Any thoughts? > > Mike > > -- > View this message in context: > http://elecraft.365791.n2.nabble.com/Receiver-Damage-from-another-Close-Station-tp6083308p6083308.html > Sent from the Elecraft mailing list archive at Nabble.com. > ______________________________________________________________ > 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 > > ______________________________________________________________ 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
