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Try this thread. /g/loopantennas/message/16088 Regards, Martin

Martin has an extensive website..try on there.. Type in call sign you should find it.

Hi Tom, sorry to correct you, aircraft use a lot of split ring lock washers, and I mean a lot! I have over four decades of avionics experience behind me. There are many places on modern

Also most of the important bolts and screws are wire tied on aircraft.

Hi ... Some months ago I think a saw a msg where Martin G8JNJ described an of RLC network that creates sort of "pre-emphasis" across the HF spectrum (e.g. 3dB attenuation @ 30MHz and lets say 30dB

I loathe "delete if not allowed" posts. Ask the moderator if you aren't sure. In this case, I think this is a worthy post that has good reason to be here. And since you haven't already posted before,

Let me know if this is too far off topic and I will delete it. Exterior loop antennas are exposed to the wind, the wind causes vibration, vibration can cause nuts and bolts to loosen. Many of us have

You have reported a couple of messages from the group as spam. Groups.io removes members for this. Nothing to do with me, but I'm not against it, as this can seriously affect the group. In addition,

From the main page: Group Email Addresses * Post: [email protected] * Subscribe: [email protected] * Unsubscribe: [email protected] * Group Owner:

For some reason, I am not getting E-mails from this Group anymore. Can someone put me on the Distribution List again. Much appreciative !!!!! Garey Wittich. ? Santa Monica, Calif

Special group: https://sharedapexloop.groups.io/g/main

Anyone using a SAL antenna or know of a SAL Group. 73, Bill, WA2DVUCape May, NJ

Yes, similar. But there is no output transformer in my preamp. The NE592 OUT- is connected to my preamp output directly with? a 220nF capacitor.

Is your circuit similar to this one? /g/loopantennas/files/MLA30LF.pdf Tom

Now I found some time to measure my 1 turn SRL with NE592 preamp: I could get a relatively flat S11 response from 100 kHz to 31 MHz with deep resonance at 37 MHz. I even tried S21 with a small

Amazon has MG Chemicals 419D Acrylic Conformal Coating, Clear Finish, 12 oz. Aerosol for $30. Might be cheaper elsewhere. * * Just spray on from different directions. Clean the board with toothbrush

Jinze, Let's put our semantics on side... The bottom line is you wish a practical means of? discrimination from unwanted EMI. You may use a tuned loop antenna at each frequency of interest? in

Raphael， The whole tossing process is more important. In fact, I have try to made most of the loop amplifiers that can be found on the Internet. Their performances are different, but in fact, when

All,Science or technical applications start with appropriate measurements and decision making Process. Look at different way, you can use a 12 inch nail connecting it with a wire to your receiver

I guess you designed this amplifier with recommended LCR equalization circuit in front of it. It is possible two capacitors in series 120 pF each together with the inductance of your transformer