> Ralph K1ZZI wrote: > > > > I just received my K3 last week (#2169) so I'm just getting > used to it. > > My FT-1000MP MKV had a 3 position anttenuation selector 6, > 12 and 18 dB. > > Many times I had the 18 dB pad cranked in on 160m. I know > it's only > > one S unit difference from the K3 but sometimes it's just what you > > need to pull it out. Wish I had more than one ATT choice. > >
Bill W4ZV replied: > > One of the things you'll notice with the K3 is that you > seldom (i.e. never for me) need to bother with the attenuator > to reduce IMD or BDR problems. > That's one of the benefits of exceptional dynamic range. The > K3 has about > 10-15 dB more IMD dynamic range ([EMAIL PROTECTED] for MP/Inrad 5k > roofing filter vs 102/[EMAIL PROTECTED] for K3/500or400) than an Inrad > MP which will more than cover the 8 dB difference (18-10) in > attenuators. > > I nearly wore out the ATT switch in VY2ZM's FT-1000D last > year in the CQ 160 CW. I'm looking forward to Jeff getting > his new K3 soon...or I'll take my own K3 if I return. :-) I'll see Bill's comment and raise it! I also seldom, as in "never", use the K3 ATT and have even used the PRE-amp on 40 meters for weak signals with a very low band-noise background. I'd never consider using a pre-amp on the low bands with any other radio. I just recalled the one application of the K3 ATTenuator I have used. When strong local contesters saturate my S-meter (zero-beat), I've used ATT to see whether they were 60+ or 70+ dB over S9! Of course, with the K3, when these guys are at least 5 kHz away I don't even know they're on the band, without a bandscope. Ed - W0YK _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
