How is any of this commercial (using amateur radio to beat commercial wireless e-mail providers out of their fees) activity applicable to the K3 or Elecraft. Elecraft are *amateur* equipment not designed, type accepted or marketed for commercial/marine use.
Take that garbage outside the amateur bands to someplace it belongs. 73, ... Joe, W4TV On 3/23/2011 11:31 AM, Matt Zilmer wrote: > Ah, but the K3 does a stellar job with WL2K, even with 100W set up as > power out. Sometimes a single transmission takes 6 or 7 seconds, and > there are lots of repeats (a typical HF email session is 2-3 minutes). > My understanding is that WL2K and Pactor modes are very similar in > terms of hard-driving the PA. > > I actually think one could run the K3 in the high duty cycle range > like this, for long periods. In MARS, we habitually run MT63 at > 80-100W with no ill effects. This is a very high duty cycle mode, and > a typical transmission lasts 4 to 5 minutes (if the broadcast is > wordy). No problems with that either, at least in my case. > > And the K3 protects itself anyway. When I first started sending HF > traffic as a MARS member, I remember monitoring the PA TEMP closely to > see how much of a rise would occur. There was a bit of a blip, but > the fans always came on and maintained the PA at< 48C. Actually, > this is quite cool. > > I think Johnny's comment about salt air and corrosion is spot on . > There was another gentleman that had his 8 MHz IF trap cooked by a > nearby marine band transmission. There are clearly reasons not to > operate the K3 as a marine band radio, legal and technical, however > there are a number of maritime ops using the K3 in the ham bands, and > I've met some of them. They keep the radio covered when not in use > (or in a cabinet), and generally care for it like they should. Maybe > this is a more apt use case - ham ops versus marine radio? > > matt W6NIA > > On Wed, 23 Mar 2011 22:12:10 +0800 (HKT), you wrote: > >> Hello Gentleman, >> >> Perhaps, this may not be relevant. Nowadays, HF email using PACTOR III is >> very >> popular in marine time. Most marine radio can stand for heavy duty cycle >> PACTOR >> transmission. However, ham gears are not designed for such a full duty >> cycle. >> >> So let the marine gears do the marine job. When I use K3 for PACTOR III, I >> need >> to low the power to say 30W. >> cheers, >> >> >> Johnny VR2XMC >> >> >> >> >> ________________________________ >> ???? Eugene Balinski<euge...@nni.com> >> ???? George A. Thornton<gthorn...@thorntonmostullaw.com>; >> Elecraft@mailman.qth.net >> ????? 2011/3/23 (?) 8:54:10 PM >> ??? Re: [Elecraft] marine frequencies and k3 >> >> George, >> >> The ** best ** solution would be for her to get her ham >> license. In that manner, she would be able to work the >> 14300 Maritime Mobile Service Net as well as a number of >> other maritime nets throughout the world. It will also >> give her access to other hams throughout the world. This >> could save her life. There are a number of weekend >> license courses that could help her along the way. >> >> I am sure that he HF radio and antenna coupler on her >> boat will cover the complete 3 - 22 MHz band and may go to >> 30 MHz. It may have to be keyboard/reset enabled. That >> would give her easy operation. >> >> Also, please DO NOT suggest that she use a ham rig for >> her primary marine HF radio. Most ham rigs are not set up >> for the rigors of marine operation and with the salt air >> and moisture, corrode very easliy. Marine HF radio have >> the commericial frequencies with correct T/R split already >> in NV memories. This is especially important for distress >> frequencies. These are normally a 1 button push. >> >> No it is not legal for you to communicate with her via >> HF on the marine band with out getting a commercial station >> license for you, and having a commercially certified radio >> at your station. >> >> 73 >> K1NR >> >> >> >> >> >> On Tue, 22 Mar 2011 22:07:39 -0700 >> "George A. Thornton"<gthorn...@thorntonmostullaw.com> >> wrote: >>> I know someone who is about to embark on an around the >>> world sailboat >>> cruise. She is not currently licensed on HAM frequencies >>> but is going >>> to have a marine operator license. She is about to >>> acquire a marine SSB >>> radio. Most of those radios are also capable of >>> operation on HAM >>> frequencies. >>> >>> >>> >>> I was trying to figure out if it was possible to legally >>> communicate >>> with her using my K3 from home. >>> >>> >>> >>> Can the K3 be modified to permit transmission on marine >>> bands? >>> >>> >>> >>> I want to emphasize that I am not looking for an >>> opportunity to use the >>> radio for any illegal purpose. I am only interested in >>> operating on >>> marine frequencies for which I would have a valid >>> license. >>> >>> >>> >>> Beyond this, it seems there is a potential marketing >>> opportunity for >>> Elecraft in the marine community. Ocean sailors use SSB >>> and many of >>> them also end up getting a HAM license so they can also >>> use HAM >>> frequencies on voyages. The Elecraft K2 and K3 are in >>> some ways ideal >>> for marine use because they are small and have relatively >>> low power >>> consumption. >>> >>> >>> >>> The stresses on a marine radio are huge and most of them >>> have been made >>> water and shock resistant. Also, marine radios require >>> extreme >>> simplicity of operation because they occasionally have to >>> be used by an >>> inexperienced operator during an emergency. >>> >>> >>> >>> Maybe none of this makes practical sense. >>> >>> >>> >>> Someone educate me, that is what this forum is about. >>> >>> >>> >>> de George AE7G >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >> ______________________________________________________________ >>> 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 >> >> --------------------------------------------------------------------- >> Web mail provided by NuNet, Inc. The Premier National provider. >> http://www.nni.com/ >> ______________________________________________________________ >> 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 > ______________________________________________________________ > 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