the ugly duckling "beater"
searched around and checked out links provided and made a 2m 70cm egg beater set up complete with a freq splitter.
as my other 2 monstrousity's materials where not exactly as described, and had to go with what was laying around, spending as little as possible. for this project i think i spent right around 10 bucks.
actual numbers are unknown as i dont have any test eqipment, but can hit all the local repeaters upto 12 miles on 2m.
just had the pass of so50, and i could just barely hear qso's even with a low elv. pass.
I would jump in and agree on the ugly duckling part but I have hopes to build a similar setup soon and can't promise it will look any better.
I actually need to build 3 so maybe by the time I get to the third they it will look better. I need one for each house and one that will be slightly different so it can be broken down and thrown in the truck to be used when stationary and hopefully quick and easy to throw together.
i'll find out in a couple days how it really does, matter of catching a nice high elevation pass.
i used several places for references, which are:
nice write up here
a youtube vidio
and a write up on making a 2m/70cm yagi, that includes the band splitter that i put together
good luck with the build, and hope it doesnt look as bad as mine,, but if it turns out to work i will build another. this one is like a proto type, ya thats it a proto so its allowed to look ugly
That is the same design I was looking at and had saved the files for a few months ago. I have been toying with a few different ideas for materials, mainly the main loops. One that sounds good in my head is the copper tubing used to supply in door ice and water dispensers and ice makers.
I think that is a bit limited, only good for ostrich eggs---
TOM K8ERV Montrose Colo
I don't know, there's two different sizes.
Originally Posted by K8ERV
had a nice pass of so-50 tonight, max elev. of 58degrees. could only hear some1 for a second or two, then static,,,,, hmm. dont know whats up with it. since i barely heard a low pass the other day, i was hoping it would open up with the higher pass. gonna recheck everything tomorow
Your are looking for Omni-directional Satellite Antenna fun? Check this out! If that appeals to you then holler and I'll give you more links. There are QFH antennas out there that look like they belong in art galleries and then there are the "ugly" versions as well. Antennas.us that advertises here at QRZ sells a 440 version for $7x.xx and they claim to have a 2 meter version available anyday. Then again winding copper tubing around forms looks like fun. Do I wish I had a $500 antenna analyzer.
Thanks for the links. I am considering building one of the "Cheap Yagis" to compare to my Arrow. I was just searching around the QTH for boom material.
Those electrolytics in the duplexer cant possibly be the right values for the job can they?
"Ham Radio does not abide by the 'Right Tool for the Job' rule. Quite the contrary.
It often gets the job done with things you wouldnt normally recognize as tools."
I went digging around and found this diplexer built by a German engineer, FELIX MEYER HB9ABX, at this very interesting site. They look somewhat similar in design. Mr. Meyer says the capacitor size is based on the power. He uses two 4-40 pF for 2 meter and WA5VJB uses 1-10 pF. Meyer uses three 3-15pF and WA5VJB uses two 4.7pF.
Originally Posted by ac0gr
Ordinarily Mr. Meyer charges $10 a copy for his plans.