Yoo Hoo .. Anybody done any concept brainstorming on the new Class E amp from SGC? I am quite fascinated with the prospects of using the new SGC Mini-Lini in new applications for HF .. like, mounting
Yes all sorts of problems disappear, but you won't save any money. On the contrary, you will spend a lot more money on amplifiers. A lot more than you will save on coax, etc. I thought a lot about sc
Mutual coupling doesn't make it exactly a non-starter, but substantially more difficult to design and operate than something with passive feed networks. How hard depends a LOT on how close the antenn
One application where it would work - and even save money - is on "airline DXpeditions" where weight can be the deciding factor between going QRO or QRP. Although it looks like a classic pre-Dayton a
In arrays, you don't want equal power to each antenna. You want equal current, or 1:2:1 current, or whatever. Typically the rear element in an array has an impedance near zero and often negative. You
Looking towards the future (and the SGC is only a step in that direction), one envisions that the input side is digital. I've been seeing proposals for "polar modulation" in wireless applications (es
OK .. that's interesting .. If you would Rick, please `splain more on the separate amps causing probs w/mutual coupling ... I have ran a contest station w/separate amps to antennas, and... well, it w
I assume you're talking about multiple antennas/amps on the same band/frequency? As long as the phase relationships among the antennas remain fixed, the mutual impedances would remain fixed, and you'
"most") out of tricky that you want to that run counter overall RF direction over RF power Before I got involved deeply with a complex system I'd like to see IMD tests on a single brick. There's a g
Some people just like to have the state of the art. Solar panels come to mind. My experience has been that a lot of "innovative" technology comes with a long list of "features", but the one that is
the long run, has because it we may have problems, nobody will know panels "innovative" one that People sometimes thing because something passes TA is fit to be used. Some amplifiers and many radios
At least in the "early adopter" phase. But only by getting some out there and playing with them do people find out what features are useful and which aren't. You don't see manual spark advance and mi
It also bothers me that the single-band amplifier plugins are grounded to the case by nothing more than one banana plug (or two if you include the +Vdd rail). This is not a good start for EMC testing
I don't know that I'd really want to impose controls on manufacturers, at least to the degree customary in the commercial world (either for amplifiers, antennas, etc.). Ham radio is fundamentally an
getting some out there useful and which controls on cars days. Actually you do. Spark advance controls and mixture control programming systems sell for a premium, but only to high performance buffs
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