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Hi, I have made an indoor active broadband loop for HFusing the LAMB-1B amp board from Casarain. Having now got back into amateur radio I want to know if there is anything I can build on the lead to

Yes indeed, it's gone. Please take this: http://web.archive.org/web/20240416151211/https://www.reeve.com/Documents/Articles%20Papers/Reeve_AntennaSystemGroundingRequirements.pdf regards Fred

Hi Fred Link is dead... 73 John

We have to distinguish between functional ground/earth, which is needed for the proper functioning of a device and the mandatory protection earth and equipotential bonding. The latter dos not care

Yep! Computers are major RFI generators! Dave - W?LEV [email protected]> wrote: -- *Dave -

Dave, I eliminated a good part of EMI from my computer by grounding all of my equipment to a central point on the computer. Additionally, using the original mini whip it is recommended to ground the

Why would one need an extra "ground" for an SDR?? Dave - W?LEV [email protected]> wrote: -- *Dave - W?LEV*

Chris, you mention that an external ground should not be used with a receiver can you expand on that? ?Why not? Tom

Before considering changes, the objectives that you want to achieve should be clearly defined. For example a) improved sensitivity/noise figure b) improved gain / gain flatness c) improved frequency

An excellent addition, Everett. 73

There has been interest in my improved LZ1AQ with a relay added. The new design has an added relay on the board that, when off, (NO POWER) the relay contacts short both loop legs to ground. ?If there

Hi Henry Chavdar talks about antenna factor alot on his website..How to improve with different loop antenna designs.. Simon g0zen

The other issue that many loop? experts dont want to accept is that for a the typical 1 metre? to 2 metre loop size? the antenna factors cant be improved to the point where it drops the inherent

Hi Fred & Dhiru, Thank you for your kind praises. I am standing on the shoulders of giants, namely PA0FRI & Martin G8JNJ whose loop aerial impedance measurement allowed me to create the dummy

This example is more about the cost optimization, which is another side of the real life engineering. It applies to hobby projects as well. A hobby design becomes popular only when it balances the

Simulations do have their place, and they allow us to quickly try new things, without letting out the magic smoke. However, so many graduates these days are trained using simulation tools, without

I worked for a company that had among other products a simulator. The architect was somewhat of a curmudgeon but really knew his stuff. He really drove home the idea that you need good measurements to

<biastee@...> wrote: Awesome work Leong and thanks for sharing! Cheers, Dhiru

Hi Leong With regard to: Fig. 16: Transistor models from different manufacturers exhibit huge differences in gain simulation! At present there are mainly PZT2222A from Nexperia/NXP and from Onsemi

Well done Leong. For more convenience. Are the images available in a higher resolution, e.g. by klicking on it? regards, Fred