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Anyone know where to get these, preferably in bulk? Thanks in advance.

Is the standard coax for antennas 50 ohm? When to use 75? Does it depend upon equipment? Thanks in advance.

What effect would this arrangement have on a ground plane antenna? Is is making the signal more directional? Accounting for loss? Any thoughts or suggestions for mounting such an antenna on a sloped surface? Or is it fine? Thanks in advance to all the experts here that have helped me with so much.

This seems silly to me; "It should be noted that a high potential is present across the gap, and even at QRP levels can be dangerous. Certainly with higher powers, this situation can be LETHAL. I would personally not recommend the use of such a loop in the shack because in my opinion even...

Hey folks, anyone know where to get some cheap trimmer capacitors online for AM (mediumwave) tuning? Something small and in the 10-265pf range there or abouts? I found one place but they want $3.95 a piece for tiny ones. Was curious if someone would know where else to look (other than taking...

Went to Lowe's with a buddy of mine. My buddy knows pretty much nothing about antennas, despite the fact that he makes wifi biquads and is a powerseller on ebay because of it. He knows how to make them, but doesn't understand really how they work, nor does he make any other antennas. In any...

Here's a link to a product (and company as a byproduct) FM transmitter-HLLY Electronics Hard to find information about the company. I know they have an ebay store and their feedback is so-so (98% or so, usually for slow shipping). Found only one review and someone in the US said the 20 watt...

My original thread on this subject was here. But I've decided to start a new thread as my original post was in regard to specific equipment, wondering if it could be used, and turned into suggestions and advice on something entirely different. Now that some of the hardware is in place, I wanted...

I know that my longwire antenna should not be touching any metal. But is it ok to solder ends of copper wire together? I've got 4 strands of 100' 18AWG insulated copper wire. I want to solder them together (that means 3 spots soldered). Is this ok or will it mess with the antenna?

Still waiting on my Grundig 750, but had the chance to do a bit more reading and some experimentation before it gets here. A friend of mine can barely get the clock in Fort Collins at 5000khz. Barely. He gets nothing else. That's just with a DX-440 with the built in antenna that he got off a...

Hey folks! First post. I'm so glad to find an active forum because I'm going to get into amateur shortwave listening. Let me preface my question with the following; I know pretty much nothing about radio technology, pretty much nothing about equipment, and pretty much nothing about shortwave...