A mic, what's that? LOL
When I have operated phone, I either use my old Shure 444, or, for a
headset/boom mic, a Koss SB-45 (comfortable and $50). I receive great
audio reports from either of them.
Ken WA8JXM
On Mon, Jan 31, 2022 at 10:12 PM Wilson Lamb via Elecraft <
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I use a 35 year old mic from my TS-450 Kenwood.
It has a better feel than the Elecraft mic and I think it sounds better.
Wilson
W4BOH
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In 1975 I bought a HP25 for around $125. Though it wasn't labeled 'C' it was a
HP25C. After that I could never really use an algebraic calculator.
A few years back I really wanted a new HP RPN calculator. I "built" a WP 34S.
You take a HP-20b or HP-30b reflash the firmware and put an
Not sure I see the difference. AVC [now called AGC aka audio
compression], at it's simplest rectifies the audio from the detector and
uses it as variable bias on one or more of the IF stages such that the
IF gain is inversely proportional to the audio level. The original goal
was to provide
BNC cables do have issues all of their own. First a manual connector seems
difficult for some to terminate properly (especially the shield).
Connectors have 2 sizes of center pins (50 & 75 ohm). Using a large
connector and then a smaller conductor will cause an intermittent at the
female center.
“The modulator” means “the modulator code in the DSP” of course. If the
compression is done by RF limiting, I expect that is also done in the DSP.
The ALC you are describing is transmitter gain ALC. That is different from
audio gain ALC.
wunder
K6WRU
Walter Underwood
CM87wj
"If so, the ALC would be before the modulator and compression after it."
I remember modulators but there isn't one in my TS-590. I doubt there is one
in any modern rig. In the TS-590 architecture compression is done in DSP
(Digital Signal Processing) and ALC is applied way down path at a TX
I had a similar problem when I first got my P3. The symptom(s) centered
around the noise drifting upward. Hand on top would send it back down
to the baseline. One of the Elecraft techs [who I know well] sent me a
new jumper on the condition that I cut the old one into 5 cm pieces so
it
My friend K7PX in Colorado has a very lightly used 100w K3 he is interested in
selling to buy some woodworking tools. He has over $3000 invested in the radio and is
a non-smoker. Built-in computer interface, so it is ready for digital modes. No
reasonable offer refused. Please contact K7PX
ALC is supposed to be linear, non-distorting. Change the level without changing
the waveform.
Compression is non-linear and changes (distorts) the waveform.
I’ve read that the K3 uses RF limiting at the first IF for compression. If so,
the ALC would be before the modulator and compression
Oh my, Bill. You're dating yourself...as am I.
I worked for HP in the early 70's when they were the calculator king. Part
of the HP folklore is how HP got into the calculator business which is
fascinating. I remember seeing a T-shirt with three symbols on it: Enter
> =. It took me a while to
It sure does.
> -Original Message-
> From: elecraft-boun...@mailman.qth.net On Behalf Of Fred Jensen
> Sent: Sunday, January 30, 2022 4:10 PM
> To: Elecraft Reflector
> Subject: [Elecraft] What happened to ALC?
>
> I can remember, shortly after SSB appeared on the ham bands that "ALC"
I agree. From one old sound engineer to another... I see this as audio
compression.
Bob, WG9L
On 1/30/2022 6:17 PM, ws6x@gmail.com wrote:
-Original Message-
From: elecraft-boun...@mailman.qth.net On Behalf Of Fred Jensen
Sent: Sunday, January 30, 2022 4:10 PM
To: Elecraft
Trevor,
Try another coax jumper between the K3 and P3. I have heard of this
problem being caused by poor connection of the shield braid (or
low-quality braid) in the jumper.
73,
Victor, 4X6GP
Rehovot, Israel
CWops #5
Formerly K2VCO
https://www.qsl.net/k2vco/
On 31/01/2022 10:09, MØTDZ
I am sure I have seen some threads on this before so please accept apologies If
i am going over something twice.
Having moved to an area with a much lower noise level I note loads of sprogs /
spurious signals following me around on the P3 panadapter. Is there a common
cause of these (im
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