Phil I have the internal 2m module in my K3 and just went through the same issues. I used a single yagi an M2 2m5WL I liked the truss system much better than the 17B2's that always fail at the truss points the M2's figured that out. It's on a 34' boom but light weight and small wind load.
I used a mast mounted preamp with low loss coax and only fittings till the amp. I use 2 Mirage amps the first a QRP/ HT amp 5-10w in to step the power up to about 50w then into my Mirage B-5030-G 50w in 300w out with a true 50w input and 14.8v with a 70 amp supply the output is 358w into my Bird wattmeter. I have a small fan's running on top of the heat sink's on both amps and they show no sign of over hearing during digital modes or any heavy duty cycles. I also have a B-5016-G a 165w Mirage amp all of these are the Black face models and have never had a problem with any of them.......almost forgot all of the amps were purchased used online over the last 5-6 years. -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Phil Hystad Sent: Monday, January 21, 2013 11:08 AM To: [email protected] Cc: [email protected] Subject: Re: [Elecraft] 2-meter solid-state linear amplifiers with K3 2-meter option Yes, although I did not indicate this earlier, getting a high-gain antenna is first on my research and shopping list. I know more about what I want there and where to find it. It is the amplifier part of the problem that I was asking here. Also, just in case someone wants to raise the issue, I am already planning on LMR600 low-loss coax (but likely not super low loss hardline coax). 73, phil, K7PEH On Jan 21, 2013, at 8:59 AM, Jim Brown <[email protected]> wrote: > On 1/21/2013 8:13 AM, Peter Torry wrote: >> May I suggest that before buying an amp that you review the system that you intend to use as money spent on a good antenna and low loss feeder are a better investment than an amp. > > Excellent suggestion, Peter.The difference between 5 watts and 160 watts is 15 dB. It's not too difficult to achieve 10 dB or more of gain with a 2M Yagi of manageable size, to gain another 10dB by getting it high in the air, and to lose 10 dB in a long run of small coax and junk connectors. > > 73, Jim K9YC > ______________________________________________________________ > 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
