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Hi Bruce VK4GU Thanks very much for your help .much appreciated .I have a ham friend that is good with down loads .Will try it this week .Will let you know how I go .Thanks again .73 Cheers VK4WBX

Just wanted to update people on the status of this. We had a delay at the fab house, boards are in product and we hope to have them soon! I have had a death of a very close friend and will be out of

yeah, it was the same with me. i tried making all kinds of baluns, finally, i made an 'L' tuner for the efhw. it works very well. - f

Well, for me, I have already spent enough hours of my life looking at different websites, to find all the pieces parts for a project (the least enjoyable part of the process). Sometimes, I will spend

Yep make one! Super easy and saves you a bunch. Just rebuilt mine today (it was really ugly before) and they works great. Mine is a 40-10m version so it includes the 100pf cap. Brad KG5SPR

In case you decide to build an end-fed, here's a link to a very popular design that's simple to construct and reportedly works great: Link: http://www.earchi.org/92011endfedfiles/Endfed6_40.pdf eHam

Right on, and thanks, Ashhar, you invented a wonderful thing in the bitx-40! It will be a simple 66 foot dipole at home!

I don't know why many choose to buy, rather than build their own wire antennas... Here's how to make one>??http://www.earchi.org/92011endfedfiles/Endfed6_40.pdf

I've updated the page with corrections suggested by Jerry. Having watched the projects for years (time flies) it is fun to look back through the changes. feel free to update/correct it.

Why would you buy it? Just get 66 feet of any wire from home depot and wind your own transformer. - f

I think is equivalent to 0.001 watt into 50 ohms. Dan. W3BU

Jim Nice work with the new instrument.? I don't think too many of us are concerned with the frequency accuracy, relative measurements of spurious are wonderful data. Sure start with cw, but if you

Hi Jim, Good for the sampler -- wanted to make sure I was reading the pictures correctly as the print is a bit small (and doing my math correctly). Yes, I understand you are checking for harmonics.

I picked up 2 of them last time they were on sale for $2.95 each [email protected]> wrote:

I did not want to comment first, as I was not sure that i was interpreting the results correctly.? Based on Ashhar's comments, I was correct in that the what was a 40 meter problem is now a 20 meter

Bench is shut down for the night. I planned on re-running the tests tomorrow. Jim

I'll let someone else do those. I only operate CW myself and don't even have a microphone made up for any of my uBITX rigs.

Twenty looks terrible. You may have to increase the attenuation a bit and crank down the bandwidth to 10khz or 30khz to show up the crud hiding in the grass. Can you do a second pass on twenty? Keep

Nice job. It looks like all the bands except 20m are pretty good. I assume this was straight cw. I don't see any spurs. It would be interesting to see the same sweeps with an audio tone feeding the

Yes it has an external 50 ohm RF sampler with a variable attenuator. I'm measuring the harmonics relative to the RF carrier, not output power here. Checking spectral purity.