As I see 2022 CQ WPX RTTY, is approaching this weekend (please save the groans,
as I have bit my tongue regarding the slide-rule/RPN trip down memory lane).
Are there any recommended Contest packages for RTTY specifically for
Mac/Elecraft radio’s ? Please feel free to PM me direct if you would
I use the REV a lot on my single-rcvr K3 with no panadapter: it's how I
find the working station in a split when trying to get through to the DX
(see vid below).
I don't have a K4 yet. Maybe there is no use for a REV on a dual-watch
or dual-rcvr rig. I do hope its usual function is retained.
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%
Good Evening,
There was less noise than last week and some form of QSB on each of
you. A fast flutter with a slower rate added on. Less noise is always
helpful. The sun has obviously moved since the solstice. Forty meters
changed over the course of the second net. One moment people
There were slide rules that included linear as well as logarithmic scales,
so you could do addition and subtraction.
An example is the Pickett "Basic Math Rule" (one sided, white plastic;
instruction manual copyright 1965).
It included linear X and Y scales.
It cost under $2 when new.
No No ... maintain it was a joke to stir up the kids!
73,
Fred ["Skip"] K6DGW
Sparks NV DM09dn
Washoe County
Byron Servies wrote on 2/6/2022 3:16 PM:
Man, you are all going to laugh me off the platform for that dumb "add" comment.
Let me have it. I deserve it.
On Sun, Feb 6, 2022 at 3:11 PM
Having taught in a number of ham crams, I am aware that there are many
individual ways of learning. For me, knowing the theory is basic. I know such
factoids as E=IR, P=EI, 1 meter is 40 inches (useful for the length of a 2M
antenna). Others just memorize the answers. I also have to memorize
Actually you are correct, you are adding. However, you are adding
logarithms.
73 and have fun,
Kevin. KD5ONS
On 2/6/22 15:16, Byron Servies wrote:
Man, you are all going to laugh me off the platform for that dumb "add" comment.
Let me have it. I deserve it.
On Sun, Feb 6, 2022
Man, you are all going to laugh me off the platform for that dumb "add" comment.
Let me have it. I deserve it.
On Sun, Feb 6, 2022 at 3:11 PM Byron Servies wrote:
>
> When the Oughtred Society first published their slide rule reference
> in 2005 I remember you could get it in a bundle with a
When the Oughtred Society first published their slide rule reference
in 2005 I remember you could get it in a bundle with a copy of the
journal and a Nestler Polymath Duplex 6". Around the same time I
purchased a K 4181-3 Log Log Duplex Decitrig.
Unfortunately my alma mater stopped having "slide
Unless you are QRP (5 W) or QRO (1.5Kw) what difference a 10% or more
calibration error makes?.
Our hobby equipment are not laboratory grade instruments.
Just curious.
73, Lou KE1F
On 2/6/2022 17:09, Bob McGraw wrote:
'Twas said "a man with one watch always knows the time. A man with 3
The short ones [mine was a K] went behind the protector in my shirt
pocket that housed 3 mech pencils ... #2, #4, and #4H ... plus a
cartridge fountain pen. I was never fond of the Al Picket rules, they
seem to constantly produce incredibly fine Al dust on my hands, clothes,
and notebooks.
I don’t think the point was the technical discussion.
It was more likely that, as written:
> Did we forget about how to use Ohms Law? Seems so. Or perhaps we never
> knew to start with.
The reasonable interpretation is that the writer implied that some sub-set of
the ham population “never
If it's like the REV button on the K3, it is not usable as a tap-hold
button. That is because what it does is switch the VFOs WHILE YOU HOLD
IT DOWN and then switches them back when you let go. This enables you to
jump back and forth between the DX station and the ones calling him in a
split
On 2/6/2022 11:18 AM, Ronnie Hull wrote:
One in every crowd… why do we have to throw rocks at each other
Why must technical discussions be viewed as adversarial? Bob is NOT
"throwing rocks," he is sharing what he's learned over his life as a
technical professional. As a young ham, I
On 2/6/2022 11:14 AM, Bob McGraw wrote:
The instrument also costs in the neighborhood of $500+.
Have you priced a Bird 43 recently? A new one without an element will
set you back about $450, used about $275. Expect to pay $100 - $200 for
a new slug, and depending on frequency and power
One in every crowd… why do we have to throw rocks at each other
Sent from my iPhone
> On Feb 6, 2022, at 1:15 PM, Bob McGraw wrote:
>
> Power measurements can be accomplished in other ways. One is to use an RF
> Amp meter and a known value load. Broadcast stations have done it this way
>
Power measurements can be accomplished in other ways. One is to use an
RF Amp meter and a known value load. Broadcast stations have done it
this way for years. Hence, 4.4 amps into 50 ohms is 1000 watts.
Another way is to use the voltage across a value of R and calculate
power. Thus
On 2/6/2022 10:59 AM, N2TK via Elecraft wrote:
3-5% is fine in my book.
As an engineer who has worked in manufacturing, I consider that a fine
performance spec. Note that it is 3% typical, 5% worst case, of the
READING, whereas for Bird, it's 5% of full scale, and the LP100A probes
are
Hi Mark,N8LP sent me a note concerning the calibration of the LP100 at high
frequencies. I use the LP-100 as a reference. I just packed up the LP100,
cables and head to ship to Larry tomorrow. I have had it for a long time. Who
knows? I may have done something dumb with it. 3-5% is fine in my
The only way to really know for sure is to have a NIST traceable calibrated
wattmeter and have it calibrated on a regular basis. Hams are generally too
cheap to do that. The LP100 does come calibrated, so that would be my go to
reference, but I'll bet Hams will hardly ever get the calibration
Gentlemen,
One of the things that I appreciate about Elecraft is how it’s panel buttons
are used to full effect with several secondary uses. While looking at the KX3
and K3 on my desk I note all buttons were used for additional functions however
on the K4 there is a single button with a
I had the same, in 1961. In fact, I had it in a "Quick Draw" holster on my
belt.
73
Lyn, W0LEN
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of SAMUEL L ROWE via
Elecraft
Sent: Sunday, February 06, 2022 10:55 AM
To: Bill
Fred, Byron, All,
Fun OT thread! I am looking at my K Cooke Radio (Modified Polyphase Duplex
Decitrig) and it's manuals... bought at the K store in NYC in 1972 while I
was at USCG ET "A" School at Governors Island, NY. It still works!
Next to it is my old Bowmar "Brain" calculator that I
'Twas said "a man with one watch always knows the time. A man with 3 or
4 watches is never quite sure of the time.".
I just recently went through power calibrations on my K3S and my
KPA500. All now agree with the power meter reference I used. Also, this
was done using a known 50.5 ohm dummy
I used a 6" Pickett log-log at NC State in the early 60's.
Easier to carry than my full size Post.
Sam KG9NG
From: elecraft-boun...@mailman.qth.net on
behalf of Bill Frantz
Sent: Sunday, February 6, 2022 9:50 AM
To: Elecraft
Subject: Re: [Elecraft] RPN Calc
OK, you forced me to open my desk drawer all the way and find out what I had.
After climbing over a bunch of mix 31 toroids, a set of Rapidograph pens, two
mechanical drawing sets, ballpoint pens etc., I got to the last slide rule in
the very back of the drawer.
I ended up finding my old 6
Dick,Thanks for the tip. My KPA1500 is in the basement on a shelf right under
my feet in the shack. I use Remote By Elecraft in the shack to monitor the
amp.Took your tip and used the KPA1500 Utility > Operate to get to WMTR Adjust.
This made it very easy to make changes and see the results
You can reload the FW
You need the:
KRC2 Download Utility (which should be available on the Elecraft Website
Rich
On 2/6/2022 8:34 AM, Gordon LaPoint wrote:
My KRC2 has a flashing LED at power on, the book says this means it
needs a firmware load. Can this be done by me or does it need a
I collect slide rules. I've been an Oughtred Society member for years.
Just an example, I have the 20" K Log Log Duplex Decitrig in mahogany
mentioned in Heinlein's "Have Spacesuit, Will Travel". It's my favorite.
73,
Gwen, NG3P
On Sat, Feb 5, 2022, 5:50 PM Byron Servies wrote:
> On Mon,
My KRC2 has a flashing LED at power on, the book says this means it
needs a firmware load. Can this be done by me or does it need a new
microcontroller chip?
Thanks,
Gordon - N1MGO
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