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https://www.wellbrook.uk.com/loopantennas/

Oh, and also fixed ground vias between top and bottom planes.

Updated the project on easyeda.com. 1. Fixed Q3, Q4 outline to match the actual package. 2. Changed the input capacitors to 100pF 3. Updated the comments Thanks to Martin and Steve for their

OH......I forgot. I do have one 1-meter diameter tuned loop made of 1/2-inch copper tubing. I use it for RX and TX at times during lightning season, if I'm motivated to get on the air during those

QUOTE: " The other day there was a discussion about what I thought was like a copper pipe with a multi conductor cable on the inside where each conductor was connected in series with the next

Fred, Maybe you save your money and time and stick with you mag loop. Everett N4CY Sent from the all new AOL app for iOS

Good afternoon Everett So what you are suggesting is just substituting the copper pipe with PEX. That brings you back to a single loop with multi turns in the pipe. What I am suggesting is to

Fred, ?If you don't need the copper pipe and want to try your multi wire idea out, Lowe's and Home Depot both have PEX plastic pipe which will bend into a circle. It is polyethylene so it will not

Good afternoon All, The other day there was a discussion about what I thought was like a copper pipe with a multi conductor cable on the inside where each conductor was connected in series with the

When I worked for the Post Office Telephones in the 1960s we had a valve amplifier with a bridge rectifier connected to its input to detect intermittent faults on our amplifiers. When used with

Hi Steve Many thanks for your kind answer. Very helpful. I'll try to search for SMD FB with similar inductance and mix. 73 Andrea IN3IWZ. Il lun 20 mar 2023, 17:58 Steve Ratzlaff

The ferrite bead I use for stopping oscillation is an old fashioned bead with a hole in the center, Amidon makes it and calls it "FB-61-101". It uses -61 material same as the -61 toroid. It has an OD

If you enjoy experimenting with RF circuits then treat yourself to a TinySA Ultra and also maybe a LiteVNA 64. These are definitely not toys and you will not regret it :-) Having used professional

For Europe / Germany "TME" is a reliable and speedy distributor (around 1 Euro per piece). 164 in stock right now. Thanks Steve for all the work you have done with the comparisons! Nils

Hello All As I'm going to buy the necessary parts to construct this LNA with SMD components (my firts time :-) ), I would like to ask if you have any hints or link about the ferrite beads to put

Thanks for the tip Steve, I didn't know about the TinySA and after reading this I'm considering buying one. Since we're on the topic of test gear, has anyone a suggestion for a sweep generator?? I'm

Also the BFW16A seems to be a very good substitute for the 2N5109... 73? Alberto? I2PHD https://datasheetspdf.com/pdf-file/726426/ComsetSemiconductors/BFW16A/1

Hi Tom, That's my understanding, but I'm happy to be challenged. I tend to adjust mine using a small test loop as a signal source. This is a picture of me optimising a loop amplifier for use with a

Thank you Martin. I didn't consider the amplifiers input inductance. Now my math works out quite well. For the LZ1AQ when using the 2 (effectively in series) 0.3uH FM filter inductors and 2

Hi all, I’m a follower of the Martin’s website too. my focus is the wellgood loop. I have built one with very good results. Now I have to reduce the loop diameter from 1m to 80cm. The question is: