Hi all, Elecraft has announced their new super transceiver, the K3. It sounds like being a real super duper for HF enthusiasts and something that may give some distance to JA Black boxes . price permitting. The K3 is no more a kit for the hungry homebrewers maybe an open box for screws drivers hi It is possible that many colleagues will put out for sale their K2 transceivers, maybe at interesting prices, to purchase the new K3 RTX. These K2 are already assembled and for those soldering iron drivers there is not much work to be done to call themselves homebrewers. The K2 is a nice equipment but I believe there is still space for improvements. Following a comment I wrote in one message Re: [Elecraft] here is how to "get a feel" for a roofing ... regarding possible mods to the K2, I received several requests asking for information. This gave me the idea to publish my ideas. Due tpo the fact that this newsgroup has, at my knowledge, no possibility to load files, I have uploaded the documentation in the EMRFD newsgroup "Files", certainly one of the most suitable for homebrewers and fiddlers.
http://groups.yahoo.com/group/emrfd/ See for file: I7SWX possible changes to K2 and K1 RTX. It is possible you need to be a member. The documentation reports suggested changes: 1)Front-end mixer replacement and roofing filter addition. These mods have been implemented and tested by I0CG in his K2. 2)Demodulator replacement. This is a more complex change versus the front-end one. It is suggested and not implemented so volunteers are welcomed to implement it and apply eventual project adjustments. In addition, but without any written instruction, a proposal for K1 changes is added. I may update this part at a later date (the italian version of document is ready). Like for the K2, the two changes are: 1) Front end replacement, similar to the K2 mod, and 2) Demodulator replacement. Due to the fact that in both stages the NE602 is used, these replacements require additional stages. Improvement should be substantial. Changes are still theoretical as none have been applied to a K1 here there is more bread and butter for the homebrewers. Comments and feedbacks are welcomed. 73 Gian I7SWX __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com _______________________________________________ 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
