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Hi Bill, are you familiar with this QEX article? After I read it, I found a ton of information about using mixers as phase detectors:

There are five used copies at Abe's Book going for $75 to $120 https://www.abebooks.com

It is available on the internet archive: https://archive.org/details/singlesidebandsy0000unse

Ge Bill and the Group This tuner concept sounds very interesting. You guys have my attention. Keep up the good design work Bill. 72 Johnny AC0BQ -- 72 JOHNNY AC0BQ .. 4sqrp Group

By the way… this is my second book. One of my (so called) friends stole my original copy! Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ Owner - Operator Big

Its “Single Sideband Systems and Circuits”. You are gonna think I’m nuts, but I keep it in my safe because its so valuable to me. Look at the names that wrote the sections. Guys like Bruene,

What is the title of Sabins book that you referenced. Dick K9IVB

Here was out dialogue… Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ Owner - Operator Big Signal Ranch – K9ZC Staunton, Illinois Owner – Operator Villa Grand

So essentially, you are solving for the inverse transform to the antenna to appear to be a purely resistive 50 ohm load. Brilliant! That is what you would do on paper! IF you ever see a copy of

Yes exactly. Remember you also need the sign of the magnitude argument because it’s squared… but that’s easy because you can just add a small amount of capacitance/ test it and see which way the

Far faster and no clickety-clack of relays on the way… Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ Owner - Operator Big Signal Ranch – K9ZC Staunton, Illinois

Bill, The switching function could be managed by an add-on function to a common S11 (mag + phase) complex impedance analyzer. What’s missing from portable S11 analyzers is a built-in “TLW”

Hi Bill, That would be an excellent project to build given the assumed faster tuning speed and your estimated low cost. It would prove very popular I am sure. Glenn vk3pe

Rather interesting….. K3BO Sent from Mail for Windows Sent: Wednesday, November 8, 2023 7:48 PM To: [email protected] Subject: Re: [AmateurRadioBuilders] Tuner interests Bill, I'll be

I talked to Goody, K3NG about this to add to his little mini tuner. He was interested. The Harris RF-601 military works this very same way… but it’s all done analog (all op-amp stuff). Dr. William

Bill, I'll be looking forward to see the design... Mike N2MS

Most of the commercial antenna tuners for hams (MFJ, Elecraft, LDG, etc.) are built with fixed components (fixed caps and coils) in a series L parallel C (either side of the L to ground). and an SWR

Well I bet you guys have more experience than we do, but Alachua County ARES(R) has been using a 270-foot off center fed dipole on multiple bands for several years with up to 600 watts. We also use

I could not have put this better but was afraid to say it because sooooo many people have these silly antennas. Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ Owner

The following files and folders have been uploaded to the Files area of the [email protected] group. * /K9HZ I2C 64 dB Digital RF Attenuator Module/Using a PE4312 to replace a PE4302.pdf