Towertalk
[Top] [All Lists]

Re: [TowerTalk] New 9 circle PCB with CMCs

To: towertalk@contesting.com
Subject: Re: [TowerTalk] New 9 circle PCB with CMCs
From: Peter <pc2a@pi4cc.nl>
Date: Wed, 2 Feb 2022 21:46:22 +0100
List-post: <mailto:towertalk@contesting.com>
Hi group

If Steve will give permission, I can  order a batch for the new pcb and send them from here WW.

The main PCB will send with 10 RX-amps PCB's
You may select the original by W1FV , the VE6WZ version, or our version with smd components (SMD soldering with a electric cooking plate. - YouTube <https://www.youtube.com/watch?v=gmqgBwO3120&t=5s>)

Peter
PC2A

Op 1-2-2022 om 17:19 schreef VE6WZ_Steve:
Today I uploaded a YouTube video describing my new 9 circle combiner board PCB 
design that has small Murata SMD CMCs on each RG-6 feedline.

I include PCB file links to download in both KiCad format or a zipped Gerber 
folder if you want to build your own.  A BOM and an image of the schematic is 
included as well.
This is the 9-circle array that was designed by John W1FV.

I review why we need these CMCs, I talk about these small Murata chokes and some VNA 
tests I did and how these same units can be used as Magic-T’s.
The new design also has a pin-out for the vcc and relay control lines, has the 
option for gas discharge tubes on the vcc and control lines, and the board has 
a slightly larger footprint than my previous designs so its its easier to 
access the F-connecters for field installation.

The evaluation is still on-going at VE6WZ, but the board tested very well in 
the shop with the VNA, and I used it this weekend for the CQWW 160m test and it 
performed well.

I know there are many that don’t like to watch a video, and I may build a PDF 
document, but in my prior life, all I did was make technical/ scientific documents and 
I’d rather not do that anymore.
It’s much easier to say things quickly in a video.  If a picture is worth a 
1,000 words, then a video is worth a million.

https://youtu.be/lVW1CmrzP7c  <https://youtu.be/lVW1CmrzP7c>

73, de steve ve6wz
_______________________________________________



_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________



_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
<Prev in Thread] Current Thread [Next in Thread>