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/hamradio/ - Electronics

For the discussion of electronics, tinkering, radio, amateur radio, and related electromagnetic phenomena and communications.

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 No.463

Sup hamfags

I'm trying to plan a QRP (sub-1W) magloop project. It has to be somewhat kinda sorta portable, so copper tubing is a definite no-no, and LMR-400 is just too expensive. At these power levels, though, I still really need the efficiency of a longer, thicker, stiffer, blacker conductor for the main loop.

I did some researching n shit, and I found a place nearby that sells pretty cheap 00AWG wire, which is about 1cm diameter. Does anyone know how stiff and heavy this is? 'Cause I haven't used it before.

Also: I don't wanna bother with mounting a capacitor at the top and a coupling loop at the bottom, so does anyone know if this guy's approach to coupling and capacitor placement would introduce any appreciable loss? http://k1fm.us/2015/07/k1fm-mini-magnetic-loop-2-0/

Sorry for the long post, I'm a poorfag with too little money to experiment with things myself.

 No.464

>>463

What band is this intended for?


 No.466

>>464

40 through 15, ideally, but all I really need is 30 and 20.


 No.468

>>463

Only the outer diameter matters, as in, more surface area = better. People have used aluminium and copper tape on PVC pipe to make magloops.




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