I am not engaging.

I will answer any questions from any quarter. But this has turned into a troll farm simply to assert control over a narrative. I think the real story is very clear for any thoughtful person. Not gonna play.

WA8TOD

Bummer that is was not as claimed.

Its not like doing it right is hard or costs much.

Some examples here:

https://m0ukd.com/homebrew/baluns-and-ununs/91-magnetic-longwire-balun-unun/

You first.? Do it right this time.

Your methodology is faulty and the results are corrupt.

I've already made that exact error before, you want to stick by it its?
not something to be proud of.

Allison

Cheers all thanks for the quick response!?

Hello Daniel
I have pulled the blue and green wires from the plug and soldered the 4k7 resistor to the raduino board, and it still does the same thing.
It does this when I don't have 12v to radio - with the usb plugged into a PC and when I give it 12v.
This is very strange!

--
Kind Regards
Rodger - ZL1RAH

Hi Dan,

I googled to see what other values are quoted for the pull-up. The input impedance is claimed to be 100 megohms. The pull-ups, when activated, are 20k ohms to 50k ohms according to the Arduino site. I pulled my approximately 30k value from a ATmega328P?chip data sheet.

You could try adding your own 20k pull-up. That would be easier than replacing the Nano. It is possible the processor chip on the nano is not in spec. I'm wondering if the cheap Nano board makers have found a source of reject?ATmega328P chips to keep costs down? Very unlikely, but wondering.?

The pins should reset to the correct configuration via the firmware every time the power is re-applied.?

Interestingly, I'm noticing a number of people saying their encoders are not working, that also relies in the internal pull-ups. I started to go through the encoder not working threads to see if they were all solved by replacing the encoder or if other solutions were used. But, this is what is making me wonder if there are Nano boards with processor chips with out of spec pull-ups.

Tom, wb6b

Yep I wasn't independently thinking, but when Allison mentioned putting a resistor across the terminals like when used as a dummy load, I knew what she was talking about. With a 470 ohm resistor my SWR meter went almost to the infinity mark. I kinda picked at the goop and feel like I would really damage it if I tried to peel it off, but it sorta looks like just 4 turns equally spaced around. I am asking for a refund on this 9:1 and will focus on making my own from now on. I can control my own build quality, just hope I don't get under spec toroids when I do this. Imagine troubleshooting that.?

Show your data and methodology.?

I have and disproved your methods, logic and resulting data.

Allison

I just installed an LM380 amplifier instead. Why an old '380? Because they are rated for 22 volts and I had a bunch. Found one with less than 5ma. quiescent current. Very quiet and just the right gain. Opened R71 to shut off the old amplifier. It is quite loud and proud. Now for a CW filter! 72, Don

Allison

i am not going to engage further in these semantic battles. I have produced data, discussion, and transparent methodologies. You have produced words. Your agenda does not seem to be in pursuit of actual guidance to the readers.?

Do do some work and produce some data. Until then, have a nice day.?

WA8TOD

开云体育

Well done Kees and thanks. I agree the moment has come to call "Time". Having the gerbers available will enable others to have boards produced if required, including future group buys.

73

Bill, VK7MX

Make sure all the wires actaully connect at both ends.? specifically the black brown and yellow.

There are a few other things it could be but one step at a time.? The fact ther eis some change suggests?
a missing wire and it can be at the connector end as well.

Allison

On Tue, Jul 31, 2018 at 02:46 PM, Warren Allgyer wrote:

The cables were normalized out of the equation by connecting them to each other before normalizing the circuit to "0". We had this conversation before

The rf path you normalised is the inner conductor and the inner shield.? Doesn't stop
or measure current flowing on the outer side of the shield.? ?Explain to me how the
RF on the outside of the shield is not a parasitic element in the transformer test system?

Again follow the current flow.? Its on the outside, as you are using the shield.? That outside shield has a finite inductance.


Allison

Your did not understand or you'd stop and fix your error.? Using? 2 meters of wire and calling that
common at RF is about as faulty as one can get.??

Repeating myself.?

The RF circuit for the antenna is from the wire to the coax as a counterpoise (NOT GROUND OR EVEN CLOSE).

You are not testing the antenna you are testing the matching system and including a few meters of wire the
shield of the coax.? Which believe it or not is trying to be an antenna even though it is small and terribly
mismatched.? ?If you can't accept that then, explain it?? ??

The rf circuit does not go to ground it goes though 2M of the coax shield to the other side of the circuit
and including your spectrum analyzer in the loop doesn't fix the error.??I has an effect and impacts the
magnitude of the result.

HINT: the biggest argument in End Fed antennas is the non-existence of shield currents. Why because
Kirchhoff's rules a proven set of theory say so.? We can only discuss their effect and magnitude.??


Allison

Warren doing it wrong and calling it good.....

"Oh stop.... please!"? To borrow your own line.

It is not the case for testing the transformer.? ? Your trying to make a case that is invalid.

Allison

Oh stop.... please!

I tested the transformers in an environment in which they would be used. The cables were normalized out of the equation by connecting them to each other before normalizing the circuit to "0". We had this conversation before. In this stream.

WA8TOD

Allison

I understand your point. 1) I was testing a known configuration of the transformer which joins the primary and secondary together on the low side. I could test the transformers with the low sides separated but that is not the configuration that is being sold. 2) There is no inductive connection on either side. The four grounds are common and the connections to and from the S/A are properly terminated transmission lines.

Please feel free to do your own test on any configuration you wish and share your results.

WA8TOD

I am using a LM386 with the V4 ubitx, works really well.

Philip G7JUR