Bill W5WVO wrote:
Silly thread -- :-) -- but it is important to keep one's facts
straight. The Cycle per Second was named the Hertz in compliance
with a long tradition in the scientific community of naming
scientific units of measure after the folks who did seminal work
in those areas of
frequency) takes his rightful
place in this pantheon proudly.
Bill W5WVO
- Original Message -
From: Tom [EMAIL PROTECTED]
To: Elecraft Reflector elecraft@mailman.qth.net
Cc: Elecraft Reflector elecraft@mailman.qth.net
Sent: Sunday, December 07, 2008 9:24 PM
Subject: Re: [Elecraft] Units
Wait just a minute. Those old units should be kc and Mc to be correct.
The proper units multiplier designations and their abbreviations are:
kilo = k = 1000
Mega = M = 1,000,000
milli = m = .001
That is why the capitalization/non-capitalization of M/m is so important.
73,
Don W3FPR
Tom wrote:
On Mon, 08 Dec 2008 07:58:53 -0500, you wrote:
Wait just a minute. Those old units should be kc and Mc to be correct.
The proper units multiplier designations and their abbreviations are:
kilo = k = 1000
Mega = M = 1,000,000
milli = m = .001
That is why the capitalization/non-capitalization of
- Original Message -
From: Tom [EMAIL PROTECTED]
To: Elecraft Reflector elecraft@mailman.qth.net
Sent: Monday, December 08, 2008 7:49 AM
Subject: Re: [Elecraft] Units
On Mon, 08 Dec 2008 07:58:53 -0500, you wrote:
Wait just a minute. Those old units should be kc and Mc
using M that way. It sure didn't make any sense to me.
Dave W7AQK
- Original Message -
From: Tom [EMAIL PROTECTED]
To: Elecraft Reflector elecraft@mailman.qth.net
Sent: Monday, December 08, 2008 7:49 AM
Subject: Re: [Elecraft] Units
On Mon, 08 Dec 2008 07:58:53 -0500, you wrote
Subject: Re: [Elecraft] Units
Wait just a minute. Those old units should be kc and Mc to be correct.
The proper units multiplier designations and their abbreviations are:
kilo = k = 1000
Mega = M = 1,000,000
milli = m = .001
That is why the capitalization/non-capitalization of M/m is so important
M is the Roman numeral for 1000.
Just a thought.David (M6SPV) From: [EMAIL PROTECTED] To: [EMAIL PROTECTED];
elecraft@mailman.qth.net Subject: Re: [Elecraft] Units Date: Mon, 8 Dec 2008
09:03:07 -0700 CC: [snip]
But I still have no idea how they ever got started using M that way. It
sure
G'day,
| The big M vs. small m is something I'm very aware of usually, but
I'm
| not sure what a big K indicates vs. a small k. I've always just
| considered either to mean kilo.
Most prefixes which make a unit bigger are written in capital letters (M,
G, T etc) and when they make a unit
Dave Yarnes wrote:
But I still have no idea how they ever got
started using M that way. It sure didn't make any sense to me.
M = 1000 in Roman numerals. Perhaps that's it?
-
Julian, G4ILO. K2 #392 K3 #222.
http://www.g4ilo.com/ G4ILO's Shack http://www.ham-directory.com/ Ham
To: Elecraft Reflector
Subject: Re: [Elecraft] Units
Bill W5WVO wrote:
Silly thread -- :-) -- but it is important to keep one's facts
straight. The Cycle per Second was named the Hertz in compliance with
a long tradition in the scientific community of naming scientific
units of measure after
, December 08, 2008 9:32 AM
Subject: Re: [Elecraft] Units
G'day,
| The big M vs. small m is something I'm very aware of
usually, but
I'm
| not sure what a big K indicates vs. a small k. I've
always just
| considered either to mean kilo.
Most prefixes which make a unit bigger are written
On 12/8/2008 9:49 AM, Barry Garratt wrote:
Actually a radian is an angular measurement whereas a Hertz (hertz) is a
frequency measurement.
1 radian = 57.2958 degrees
1 hertz = 1 cycle per second
But, but, but. 1 cycle = 360 degrees = 2*pi radians, so
frequency can be expressed
!)
Bill W5WVO
- Original Message -
From: Julian, G4ILO [EMAIL PROTECTED]
To: elecraft@mailman.qth.net
Sent: Monday, December 08, 2008 10:40 AM
Subject: Re: [K3] [Elecraft] Units
Dave Yarnes wrote:
But I still have no idea how they ever got
started using M that way. It sure
I think the term used for the SI is coherent, ie 1 x 1 = 1, none of your
dynes, cubits, foot-pounds etc. A pity our cousins from across the water
are not all on board the SI express.
David
G3UNA
On 12/8/2008 9:49 AM, Barry Garratt wrote:
Actually a radian is an angular measurement
On 12/8/2008 10:50 AM, Bill W5WVO wrote:
Why is micro (10^-6) abbreviated by the Greek letter mu ?
Obviously m was taken already by milli, so mu, the Greek
equivalent letter of the Roman m, was chosen. :-)
But, but, but. back when I became a ham (1952) in high
school and went on to
starting to get away from the term condensers) were specified
in mmf (milli micro farads) instead of pico farads as done
today.
Phil:
You sure it wasn't micro-micro-Farad, denoted as either mmf or uuF?
Paul, W9AC
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Oh, I don't know - My favorite unit has always been Furlongs per
Fortnight. I once converted the speed of light into those units and
used it in a humorous problem in our club newsletter. Couple of guys
actually got the right answer!
- Jim, KL7CC
David Cutter wrote:
I think the term
I think the term used for the SI is coherent, ie 1 x 1 = 1, none of your
dynes, cubits, foot-pounds etc. A pity our cousins from across the water
are not all on board the SI express.
David
G3UNA
On 12/8/2008 9:49 AM, Barry Garratt wrote:
Actually a radian is an angular
For goodness sake - give it a rest everybody with this inane drivel.
This is supposed to be the Elecraft reflector.. Mr Moderator -
PLEASE!!!
Tom
GM4FDM
David Cutter wrote:
I think the term used for the SI is coherent, ie 1 x 1 = 1, none of
your dynes, cubits, foot-pounds etc.
Thanks for the units info.
Has been a good refresher.
I was using KHz, now I know to use kHz.
73, Ty
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On 12/8/2008 11:40 AM, [EMAIL PROTECTED] wrote:
What's even sillier is having defined inverse Ohms as Mhos. I
don't believe there ever was a Mr. Mho. [Mho Nomis Groeg??]
Surely a Stanford physicist can recognize that Mho is Ohm
spelled backwards!
Radio is sure fun!
I should hope
On Dec 8, 2008, at 11:09 AM, David Cutter wrote:
A pity our cousins from across the water are not all on board the SI
express.
David
Yes, it is. And we still refer to our archaic system as the English
system.
We actually had a push to go metric in the mid 1800's but only got as
far as
But I do what I can. I named my sailboat STORMJOULE. The dingy was ERG.
And a Kilometer is the amount of effort need to raise one kilo up one
meter... hi hi
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I thought a kilometer was a device used to measure cocaine.
- Jim, KL7CC
Toby Deinhardt wrote:
And a Kilometer is the amount of effort need to raise one kilo up one
meter... hi hi
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Must be a slow news day..
Let's end this thread -now-. Its way past the point of topic email
overload and some of theposts are getting silly ;-)
73, Eric WA6HHQ
Elecraft List Moderator
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David Cutter wrote:
A pity our cousins from across the water are
not all on board the SI express.
David, we colonists are going metric ... inch by inch.
73,
Fred K6DGW
- Northern California Contest Club
- CU in the 2009 Cal QSO Party 3-4 Oct 2009
- www.cqp.org
Silly thread -- :-) -- but it is important to keep one's facts
straight. The Cycle per Second was named the Hertz in compliance
with a long tradition in the scientific community of naming
scientific units of measure after the folks who did seminal work
in those areas of science. Mssrs
G'day,
| My 180' wire was resonant at about 2.2 mHz, where the SWR was around
1.4:1. Since signals
Spectacularly slow velocity of propagation there.
Here we are, custodians of a technical hobby, one that we have to achieve
qualification in for licensing and we can't get our units right. MHz,
Wait just a minute here Mike!!
What happened to MC and KC?
If your on 20 meters and move to avoid the QRM did you go up 2 Kay
Cee's or 2
Kilo Hertz's . With split what is it? Up 20 XXX ?
73,
Bob
K2TK EX KN2TKR K2TKR
Mike Harris wrote:
G'day,
| My 180' wire was resonant at
On Sun, 07 Dec 2008 14:32:28 -0500, you wrote:
Wait just a minute here Mike!!
What happened to MC and KC?
If your on 20 meters and move to avoid the QRM did you go up 2 Kay
Cee's or 2
Kilo Hertz's . With split what is it? Up 20 XXX ?
73,
Bob
K2TK EX KN2TKR K2TKR
In my opinion
uuF was used to spec cap values in tube equipment.
The introduction of semiconductors forced a conversion
to use the 'pico' prefix.
Same with hertz. Tube gear measured frequency in
cycles per second. The transistor changed all of
that.
Today, the use of surface mount parts has caused the
need
Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Steve Jackson
Sent: Friday, December 17, 2004 07:22
To: elecraft@mailman.qth.net
Subject: [Elecraft] units of measurement, explained
uuF was used to spec cap values in tube equipment.
The introduction of semiconductors
At 08:08 AM 12/17/2004, Brian Wruble wrote...
How in the world did a change to solid state affect a naming convention? 1
Hz = 1 cps, regardless of the circuit devices. 1 uuf (micro micro farad)
= 1 pf, regardless of the devices used in the circuit. I am baffled by this
notion. Can you provide
: Brian Wruble [mailto:[EMAIL PROTECTED]
Sent: Friday, December 17, 2004 09:02
To: 'Steve Jackson'
Subject: RE: [Elecraft] units of measurement, explained
Very good. You got me! Also very funny. I am happy to be your straight
man. 73, Brian
-Original Message-
From: Steve Jackson
] units of measurement, explained
Very good. You got me! Also very funny. I am happy to be your straight
man. 73, Brian
-Original Message-
From: Steve Jackson [mailto:[EMAIL PROTECTED]
Sent: Friday, December 17, 2004 08:59
To: Brian Wruble
Subject: RE: [Elecraft] units of measurement
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