开云体育

Hi All Sorry if this is not the right place to ask. Feel free to point me to a more suitable place for my questions. I have an antenna connected to a 13.56MHz RF signal and would like to add a ferrite

They are all true. :-) Zack W9SZ <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=icon> Virus-free. www.avast.com

As I wrote in my original post, bookfinder.com is currently the best resource for locating used books. I have found that the information about the condition of used books offered by booksellers

This book by Les Moxon, G6XN, is a great one for those of us without a strong college mathematics education. It's available used, from Amazon and other booksellers. I'm very glad to have a copy. --

Hi Dave Thanks for the procedure;Exactly what I want to do. It's generally clear but as a 'new driver' of the VNA in my Santa sack, I have a couple of comments / requests 1 SAVER- what is this, where

Hello, I found the last V2 firmware releases are stored on: https://nanorfe.com/downloads/ It looks the 20201122 release fixes the issue with markes move that sometime freezes the device. Regards,

I promised this, so here it is. See the attachment for a procedure to measure the CM attenuation through CMCs and other 4-terminal devices (as in s-parameters). Comments and improvements are welcome

We are talking about power transfer here. "Taking power away from the transmitter" IMHO, is a misnomer that leads to confusion. The Maximum power transfer theorem states that the AC voltage source

2nd ed is available on scribd in various formats and is sufficiently new for most amateur purposes. Kraus is my "go-to" book in general when I need a good explanation, and some theory. My general take

Kraus. If John Kraus thought that a treatment of antennas was alright...then it was alright! I.S.B.N is ?? 0-87259-206-5 ?? , ? ? Library of Congress ?? 55-8966?? . this is the "big, old"

Surprisingly enough, MFJ has an excellent resource. I picked up a copy at HRO a couple of years ago, well before the COVID thing. It's a bit terse in treatments, but its pretty good: *ANTENNAS AND

The transmatch is only a lowly matching network. I use parallel conductor transmission line. It really doesn't care about voltage and/or current. It consists mostly of parallel conductors 40 feet

There are many textbooks out there. Some are: Any revision of John Kraus’ “Antennas” text (classic and probably the best choice when starting out) Any revision of Balanis’ “Antenna Theory”

Other than the ARRL Antenna Book, are there good resources to investigate to learn more about these topics?

Transmission lines and Basic Antenna theory are sadly the most misunderstood and maybe the most important technical component of the hobby. Thanks for your contribution Barry.

I've been hearing "where are the answers to these 20 true/false questions? And many of the slides on my PPT or PDF end with a QUESTION. ALL 20 of the TRUE/FALSE question are TRUE - or true enough.

Roby, Brad, you could try the procedure in /g/nanovna-users/files/Nano%20VNA%20Saver/nanoVNA-H4%20software%20support%20under%20Ubuntu.pdf. It was written (and tested) on Ubuntu 18.04,

This might be a dumb question, but where are the answers listed?

Dave, I think the power loss comes from the transmatch making higher voltages on the transmission line and this increases line loss. Terry Terry Bullett W?ASP tbullett@... Life is Complex. It

So....you found the reset button.? Now grab a pile of coils, caps and resistors and play to see how the various combinations are displayed. Lots of good info in the forum messages. On Sun., 31 Jan.