Gary, I would suggest a well shielded dummy load connected with a very short piece of coax. Second best would be the shorted coax plug.
Yes, CW mode. Make certain what you are listening to tunes faster than a normal signal - if it tunes at the normal rate, it is not a birdie, but a real signal close to your receiver, and there is nothing you can do in the K3 to eliminate it - short of putting the K3 in an entirely sealed shielding box. With no antenna connected, even the short wires inside the K3 or just the open connector center conductor can pick up a response from a local signal. 73, Don W3FPR On 8/20/2011 2:30 PM, Gary K9GS wrote: > So...what is the best way to check for birdies...no antenna, dummy load, > shorted coax plug? > > And i assume you want the bandwidth wide and probably in CW mode?? > > On 8/20/2011 1:22 PM, Don Wilhelm wrote: >> Gill, >> >> May I suggest you open the top of the K3 and give each one of the TMP >> cables a slight turn in their sockets while applying a bit of pressure >> toward the socket. Grasp the "ears" on the TMP connector, do not try to >> twist it holding only the cable. >> >> Look in the assembly manual and make certain the TMP cables are >> positioned as shown in the photos. >> >> No guarantee it will fix this spur, but it is a good starting point. >> >> The Birdie Removal Tool can be used if that does not correct it for you. >> >> 73, >> Don W3FPR >> >> On 8/20/2011 1:06 PM, Gill W4RYW wrote: >>> While looking for a source of some steady carrier interference on the 20M >>> and >>> 15M bands, I noticed that one of them at 21.017.9 Khz moved (on the P3 >>> screen) in proportion to the tuning of the K3. Obviously a birdie as I >>> checked with no antenna. The birdie had side lobes - i.e. there were weak >>> carriers either side at 12Khz offsets. Tuning around, I found what appears >>> to be the fundamental at 20445.11 kHz. The freq's are with rig on CW normal >>> - the freq's listed change with mode. Turning P3 off makes no difference. >>> >>> I would like to get rid of these or minimize the levels - any ideas? >>> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> 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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
