Hi Guy, Thanks for the suggestion.
Will try 10 mts with the PRE next time I go to the station. Unfortunately I didn´t tried it during the contest. On low bands sometimes I don´t need to use the PRE with my beverages, very good RX there.! 73, Jorge CX6VM/CW5W -----Mensaje original----- De: [email protected] [mailto:[email protected]] En nombre de Guy Olinger K2AV Enviado el: Martes, 14 de Diciembre de 2010 01:34 p.m. Para: Jorge Diez - CX6VM CC: [email protected]; John_N1JM; [email protected] Asunto: Re: [Elecraft] K3 in ARRL10 Hi Jorge, If you are listening to weak signals on 10m with a K3, the PRE should be on. It's really required unless your local 10m ambient noise is terrible. The FT1000MP built in this change in sensitivity, so it always had additional sensitivity automatically turned on for 10 meters. This could be turned off in the menu. In the K3, the operator makes these choices, it's not automatic. In general, the PRE should always be on for 10m. By contrast on 160m, the ATT should be on and the PRE off, unless you are listening to a beverage or other low level RX antenna. But these settings are left entirely to the operator. Those who have a high-end external preamp for ten meters (particularly remote pre-amps) will want the K3 internal preamp off. That is one of the number of reasons why it is left to the operator to determine the proper setting of PRE/ATT to match the ambient noise at the ANT jack. Once the proper setting for your circumstance is determined, the K3 will remember it so you don't have to adjust it constantly. 73, Guy. On Tue, Dec 14, 2010 at 5:53 AM, Jorge Diez - CX6VM <[email protected]> wrote: > Hello, > > Sorry for the delay, but I was in a 6 hours drive trip yesterday. > > After reading the emails, I stopped at AC7AC email. I am very sure that I > have band noise. I heard a noticeable SHHHHHHHHHHHHH that I didn´t heard in > the TS850. I can do some records later this week when I go back to the > station. > > My setup is a ArraySolution sixpack, so I switch the 10 mts position to the > K3 and TS850. The radios are connected to different models of amps and swr > meters, but I don´t know if this will affect. > > I didn´t use the PRE. > > 73, > Jorge > CX6VM/CW5W > > > > -----Mensaje original----- > De: [email protected] > [mailto:[email protected]] En nombre de [email protected] > Enviado el: Lunes, 13 de Diciembre de 2010 04:03 p.m. > Para: John_N1JM > CC: [email protected] > Asunto: Re: [Elecraft] K3 in ARRL10 > > I operated the 10m contest this weekend with my K3 and I did have the > preamp on. In that condition, I heard a lot more than apparently could > hear me. > > If this could be quantified some way, perhaps we could get away from just > comparing opinions? > > de W5OV > >> >> Even though I do get a rise in band noise going from dummy load to >> antenna, I >> still hear weak signals on my 480 that I don't hear on the K3 on 10 meters >> SSB. Not sure about cw (what's cw?) :-). Assuming my K3 is set up >> properly, >> I would hate to crank up the IF gain just for 10 meters. >> -- >> View this message in context: >> http://elecraft.365791.n2.nabble.com/K3-in-ARRL10-tp5830988p5831388.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 > > ______________________________________________________________ > 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
