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There is a huge difference in performance in audio DSP and RF DSP. Using a DSP speaker may eliminate most of the noise but it can never compensate for poor signal to noise ratio like RF DSP can. With audio DSP the signal must be over the noise a certain amount to be recoverable. With RF DSP the...

I bought a 10dB attenuator several years ago from Florida RF Labs on Ebay. I installed it on the input of a Larcan television amplifier module that was retuned for use on 6m. The idea was to make it idiot proof due to the amplifiers gain and expen$e. I can hit the amp with 100 watts and only 10...

Basically, you are being screwed because of the incompetence of the CBP.

How do they know it was forced labour simply because it was made in China? If being made in China is reason to claim it was made using forced labour, that should disqualify ALL goods made in China. Sounds like someone in Washington is trying to stop imports.......one way or another.

Personally I would not take a Steppir if it was given to me. The thoughts of having FULL SIZED elements for 20m or even 40m when operating on 10m or 15m just speaks of crazy. If the elements somehow physically got shorter then sure, but having that tape element running inside fibreglass...

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OK but again, you would have an extremely hard time knowing if that was indeed the mode of propagation. Ever hear of the Brenden Awards ? A group of amateurs, one of who I know, set up a 100 element wire rope suspended yagi on 2m from the east coast of Newfoundland in an attempt to cross the...

A few things to think about. First, the average height of the ionosphere extends to below the normal height of the Starlink sats thus HF cannot penetrate it to reach them. Secondly, If you happened to hit a region where the ionosphere was high enough to allow HF to hit a Starlink bird, how would...

We have a nesting pair here at the house in Nova Scotia every year. This year we noticed two females and one male so perhaps there are now two nesting pairs here.

My favourite meters are the Fluke 376 digital for pretty much all work I do. I really like the fact that it reads DC current with the clamp. Most just read AC current. For analog, especially when working with high voltage, I use my ole Triplett 630-PLK. It is an old rugged bakelite cased analog...

Being of different brands has nothing to do with it. An Icom radio can key a Kenwood amp. A Kenwood radio can key a Yaesu amp. A foot switch is required when the radio does not have a send port such as when using an 11m radio with a ham amp. Some older tube type amps require either a slight mod...

I'll second the IC-735. I had one years ago and sold it when I bought an FT-857. Biggest radio mistake I ever made. That triple conversion front-end was absolutely bulletproof and the filter skirts were very tight. It was simple to operate and sounded good on the air. I wish I still had it.

How is the eagle population there, anyway? I keep seeing a lot of sites with eagle cams and lots of talk about hatchlings. Up here if we don't see an eagle at least once a day something is off. There are at least a pair of them we see soaring high and they often land in the trees in the backyard...

A full cycle is about 11 years.It is a bit lopsided however. Generally it takes a bit longer to go from a peak to a low than it does to go from a low to a peak.

I found my old one a couple of months ago, stashed in one of my MANY boxes of "stuff". Unfortunately, the bulb had all rotted and cracked.

Those are great for things like connectors. I bought one several years ago at the hardware store. It was advertised as being for doing stained-glass work. It has enough thermal mass to work quite well on coax connectors.

Every one of them is different. Some have metal shields around the tubes for extra shielding, and some do not. Some have the leads RF bypassed to prevent radiating, and some do not. Some use good engineering practices when constructed and some do not. Basically, you roll the dice and see what...

I think I know one that can't just let things go.

One side of that gas tube should just sit on the centre connector inside the housing, and the other side is grounded when the cap screws back on.

Just replace the arrestor inside. They were made to be easily replaced after a strike.