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I shipped a Palomar a couple a months ago. Something like $100 or so, Postal money order? You payed. Thanks. I'm thinking you have a back room with a buncha radio stuffs like me- a small version of which. Perhaps you don't remember.

Can't say for sure, but, I believe the exciter winding is the source of the noise component on the output. Somehow, noise is being injected upon the output of the generator. Perhaps, filtering on the exciter feed with an electrolytic cap, will lower the noise on the output of the generator. See...

So I went to Amazon in search of ferrite cores and got lost in the weeds pertaining to materials, and filter performance. Not to mention the reviews are getting to be totally worthless as there are numerous conflicting opinions, by people that don't know what the're talking about. Often times...

Gas generator running half of the house Cabin, and charging a small battery bank for radio guitar and Crate solid state guitar amp, and off grid power use. Is this too simple? No. Did I mention pumping water out of the creek to fill a cistern about once a month? Wife and five children moved...

Thought and a question. It occurred to me, THD is based on load. So, maybe that is why some low demand users experience little to no problem with their generator-electronics. In my application, presently, I only need about 1500 watts, with an occasional refrigerator surge, so the THD could be...

At some point I'm going to put an old BK 5 Mhz scope on the output, under load to get an idea as to the power quality. However, I recall, back in the early 80's, I wanted to look at some signals on the main board of a laser scanner. When I touched a component with the scope probe, it blew the...

The above answer was to the question: So will adding an EMI filter reduce the harmonic distortion? Well, I just went and did some research on THD and the Firman THD level. It's been a while so in researching THD, I see why now, the answer to the question is, No. I'm believing the distortion to...

Thanks. So will adding an EMI filter improve the harmonic distortion rating?

Couldn't find a specific forum for this question. For my application, it doesn't apply to HAM Radio operations, but I figured, Y'all know something about RF noise, so here goes. What are the opinions regarding the quality of power the portable generators make; I have a Firman 3500- How much RF...

As mentioned in the initial post: "perhaps simply running the coax, properly loaded," Perhaps I didn't specify it sufficiently, and at this point, I'm sold on the principle that it's not practical to, "field telephone" handhelds. But if I did try it, I would incorporate an Impedance network to...

I'm on my way to Amazon now, I'll have to check that brand out. Thanks.

Thanks, It was a question and I appreciate the answer as I didn't have enough info to answer it myself. Again, thanks for the informative answer. silverfox.

Tech question: Have you ever heard of connecting say, four Baofeng radios, in different locations in the field; 100 meter coax runs each, to a central junction box, for the purpose of setting up an Old School secure field set. If nothing else, perhaps simply running the coax, properly loaded, to...

What you're describing sounds like, Phase Array Radar. The pulse is steered, did I just describe cattle? The transmitted pulse is caused to leave the antenna at a varied angel by phase shifting the array. That is why modern nave ships no longer have the rotating antenna.

I believe I've figured out how a magnetron is modulated in microwave transmissions. The output is pulse width modulated by turning the cavity voltage on and off. You should also be able to modulate the output power by dropping the high voltage. Is that right?

Hmmm. Since I'm not going to try to fix it- I don't believe it needs anything more than a recap to be sure. I did notice the PVC membrane on a capacitor between the antenna input and output seemed to be split, but no arcing observable; And I'm not about to repurpose the Peavey power transformer...

As I mentioned, I'm not going to plug it in. After all, regarding RF, I'm not more than a Canned Ham: What would your fair offer be, not to include shipping? So sell the tubes. BBI on youtube has the tubes if that's what it needs. He found a bunch while looking for the rest of a repair job shipment.

Hi, New member here. I ended up on this forum as a result of pulling a Palomar, seems to be a 300 series, off the shelf out back. I picked it up at an old tractor show, Pottsville Oregon. It did occur to me after the fact it was missing the power transformer. I've got a transformer out of a 150...