[Elecraft] K2 questions about antennas ...

Michael D. Heit KD7YLA [email protected]
Sun Nov 9 14:11:00 2003


Thank you Wayne. I have a head full of knowledge, and reasonably good 
building and soldering skills ... but I have to admit that antenna 
design and theory has me some what baffled ... I ordered the ARRL hand 
book and the antenna hand book in order to really learn this trade, ham 
radio that is. I am particularly interested in PSK31 and the K2 is the 
perfect unit for this. I bought a Dell Latitude XP [circa 1985 ~ 1988] 
for $5.00 at the Spokane Hamfest in September for the use of 
experimenting with computer to radio communication. I took it apart last 
night and rebuilt the power supply circuitry in it, had to external wire 
the power connections with a honking toroid in line to keep noise out. 
Now I will have to build a null modem cable so I can connect it to my pc 
and download a OS into it. I'm bidding on a newer one on Ebay right now 
that has built in CD, etc and has a 500+ MHz chip set in it. I'll run to 
Spokane today and buy a roll of #26 and #28 copper wire and some BNC 
connectors, both male and female. Everything I have in stock is either 
PL/SO-259 and or "N" type connectors. All the 100 to 500 watt amps I 
have been building for the last 8 years have used very few if any BNC 
type connectors!
 Also will have to get some PVC pipe that I can thread together to make 
some long poles to mount my antenna up high.
Here's a question for you. Using the K2, and assuming I run a wire 
antenna around the perimeter of my yard [dimensions of appx. 140' X 75 
'] and used a 50Ohm coax to center feed this set up ... would this work 
ok across the bands on the K2?  I have some RG8U here I use in my FM 
transmitters (87.5 ~108.00 MHz) will this work on the K2 circuitry with 
out too much lossy ??
 Thanks, I appreciate your help and the help of this list.
73, Mike KD7YLA

Wayne Burdick wrote:

>  
>
>>"Michael D. Heit KD7YLA" wrote:
>>
>>Wayne,
>>Did you use wire that was bare or is it the coated kind??
>>    
>>
>
>I used enamel-coated wire, either #26 or #28. But any thin (nearly invisible)
>wire would work.
>
>Wayne
>
>
>  
>

-- 
73, de Michael Heit KD7YLA
"Real Hams do it at a high frequency"



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