I remember the first time I used a tuned stub to block out an FM broadcast station, on a programmable Police type scanner ! Without full understanding of the methodology, I built one anyway, and it was magical ! Funny, when you tell people about these, you always get this look of skepticism ! It's as if they think you're a Wizard ! Funny stuff ! 👍😉
Yes, by definition, but it is not parallel 50 ohm loads. If you are looking at critical length cables and what not, they would not apply to this setup. Keep in mind what a network analyzer would see looking down the pipe. The goal is to stay as close to 50 Ohms resistive as you can.
@@dc95811 trying to become more familiar w using coax to match antennas according to Smith Chart - can you recommend a good book or videos that explains using coax for this purpose
@@PatAutrey I wish I could, but it is sparse. I haven't done such things before, but I have seen ham posts of HF antennas using those to tune. You really need a Network Analyzer to show true impedance. But I know there are old school alternatives. w2aew has a channel on here and he goes deep into those worlds, check him out.
wow your telco knowledge is amazing Sir
I remember the first time I used a tuned stub to block out an FM broadcast station, on a programmable Police type scanner !
Without full understanding of the methodology, I built one anyway, and it was magical !
Funny, when you tell people about these, you always get this look of skepticism !
It's as if they think you're a Wizard !
Funny stuff !
👍😉
Very interesting and informative video presentation.
Thank you!
73 from the Heart of BIDENomics
The PRNJ (“People’s Republic of New Jersey”)
This was super cool. 👌
You need two stubs, with opened ones as well, for superb notch with up to ~80db
a lot of "uhhhs" with some useful information
This is a much better way of doing this. And please watch muted. This is for info not entertainment. th-cam.com/video/adxZhU7-qWM/w-d-xo.html
Quick question anytime that you're using a T connector is that considered a parallel connection
Yes, by definition, but it is not parallel 50 ohm loads. If you are looking at critical length cables and what not, they would not apply to this setup. Keep in mind what a network analyzer would see looking down the pipe. The goal is to stay as close to 50 Ohms resistive as you can.
@@dc95811 trying to become more familiar w using coax to match antennas according to Smith Chart - can you recommend a good book or videos that explains using coax for this purpose
@@PatAutrey I wish I could, but it is sparse. I haven't done such things before, but I have seen ham posts of HF antennas using those to tune. You really need a Network Analyzer to show true impedance. But I know there are old school alternatives. w2aew has a channel on here and he goes deep into those worlds, check him out.
Thanks again I will definitely take a look at it