Tim N9PUZ has an excellent point. Manufacturers of any long-lived electronic
equipment have a neverending battle with component obsolescence. Say an FPGA
goes end-of-life and there is no pin-compatible part. This is a problem that I
have had professional experience with -- and which AFAIK has
Has anyone else seen the kind of gain jumping on 160 shown here?
https://www.youtube.com/watch?v=LjfksHwLz9w
The exciter is a K3, and I generated the drive signal by putting it into TUNE
mode. The KPA1500 is feeding directly into a dummy load, so the antenna, etc.
is not the cause.
I believe I
If you dig into the QST reviews, you'll find out that the LP100 did not quite
meet its spec of 5% accuracy on all bands at all power levels and modes. But
then, neither did the LP500 nor the W2.
The old Array Solutions Powermaster II came closer than any of those three. it
was within 5%
Chuck, I'm glad you're happy with it. But the fact that KV5J is selling a
separate box to update the W2 kind of argues for my point that the W2 needs a
design refresh. Read the reviews on eHam and you'll see what I mean.
https://www.eham.net/reviews/view-product?id=14820
For reference, here's
Bob, I own a Bird 43 and a few slugs. Problems for station use: It's not
autoranging, doesn't directly measure SWR, and it's a bit cumbersome to leave
on a shelf top. I tried yesterday and I didn't have a good place for it where
it wouldn't be in the way of something.
73, -Steve WX2S
I bought a W2 today, because my Meterbuilder MB-1 wattmeter's directional
coupler died and the product seems to be an orphan. But I wonder if Elecraft
has any plans to bring out an updated wattmeter. The W2's design is ten years
old, and the LED bargraph displays are getting a bit long in the
Problem found. It was an intermittent fault on a bidirectional coupler for a
wattmeter. It finally failed hard. When I took the coupler out of circuit, the
amp behaved itself.
73, -Steve WX2S
On Tuesday, January 11, 2022, 11:33:44 AM EST, Steve Masticola
wrote:
Hi, all,
My KPA1500
Hi, all,
My KPA1500 is throwing a lot of reflected power faults at power levels above
500 watts. The symptom is that the output power (as indicated by the power
LEDs) zooms up and then the amp faults. An external MB-1 power meter indicates
2000 watts or more peak output when this happens.
I
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