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Thanks for the comments. I'll have to spend some more time with the Nanovna in TDR. Is there a manual to read?

So is the circuit I published on another thread, with an inductor, a capacitor and two resistors resonant at all frequencies? The reactance is zero at all frequencies. IF these parameters are SAME

I cut my teeth using coax and still do for my radio astronomy interests. However, I use a 450 foot long doublet on 630 through 6 meters with a home brew L-Network matching network. The feedline is

I have been following this discussion. If the tuner is attached directly at the antenna I refer to it as an antenna tuner. If the tuner is connected to the transmission line feeding the antenna I

Dave states: That is preferred when building an antenna for a fixed frequency with a specific radiation pattern. If building a 4 element yagi for 14.1 mhz, that is exactly what I would do. And a 50kw

I at one time installed satellite receivers. I have a a lot left over. larry

Even more fun, you can tune a multiband fun dipole because you can see all the resonances. Once you've tuned one with a VNA, tuning one with something like a MFJ gets easier.

I have 2 Version 1 NanoVNAs and one Version 2 NanoVNA, and have had no problems with any of them. As far as being hard to use, I'm with Bob K6DDX. Have someone show you how to use it, you will pick

I have bought good short RG316 cables with BNC and SMB connectors from Kiki at http://www.rfsupplier.com. They have good prices and cables were well made. I would recommend RG316 instead of RG58 or

Thank you! That is good to know. Forgive me, but as old school and 73 years 'wise', I much prefer a hard copy. Dave - W?LEV -- *Dave - W?LEV* *Just Let Darwin Work*

Dave: I may be mistaken, but I believe Jasik, Balanis and Krause are all available (in various additions) from internet sources. Ed McCann AG6CX

My NanoVNA came with something more like 0.1" coax (RG-174 type or something). Multitude of suppliers from companies you've never heard of. If you want more consistency, maybe try L-com

MPD Digital has an online custom cable assembly builder. They make cable assemblies for NASA so it's good enough for me. https://usacoax.com/custom.html Dave-KB1PVH Sent from my Galaxy S9

I bought these: https://s.click.aliexpress.com/e/_dUxfrOB https://s.click.aliexpress.com/e/_dURWBgb I cut the second one to verify that it is a real PTFE coax and it checks out. Get a bit longer

Tonnes of options on amazon. You can also try Universal radio, The Main Trading company, Gigaparts, pacParts. You can buy 50 feet of RG58 on amazon for like $20. It usually has pl259 connecters so you

"Cheap" RF cables breed nothing but problems. One might get away with "cheap" RG-58 cables at HF, but NOT above 30 mhz!!!!! Don't tempt problems!!!!!! Dave - W?LEV -- *Dave - W?LEV* *Just Let

I have had good luck with Chinese suppliers on ebay. Bob

Section 13.3 of the Maxwell tertise states (NOT Clerk Maxwell of the famous '4-equations' which tied EM theory together in the late 19th Century!!): " The antenna tuner really does tune the

Can anyone tell me a source for inexpensive source for RG-58 50 ohm coax cable and/or for preassembled RG-58 with an SMA male termination on one or both ends, basically like that shipped with the

Yep! "The antenna tuner really does tune the antenna to resonance, in spite of opinions to the contrary of those who are unaware of the principles of conjugate matching. The tuner obtains a match,