One does wonder about the bands between 10m and 2m.
I just found a newer document, with a corrected version of
Recommendation R.1.
http://www.iaru-r1.org/VHF_Handbook_V5_11.pdf
IARU Region VHF Managers Handbook
Version 5.11, 07. 08. 2006
Page 156
Brian Lloyd [EMAIL PROTECTED]
wrote on Thursday, May 17, 2007 at 4:37 AM
And I have never found a receiver that had a calibrated S-meter.
Oh that's the reason for You are S9, what's your call , name and my report
again please?
Perhaps it's time for S meters to be calibrated in input dbm?
Brian Lloyd [EMAIL PROTECTED]
wrote on Thursday, May 17, 2007 at 4:37 AM
And I have never found a receiver that had a calibrated S-meter.
TS-480SAT it not at all bad - in fact it's my favourite HF radio for many
reasons (a K3 is on order). My IC-7800 had an accurate S-Meter as well
Tom Hammond N0SS wrote:
Ian:
Put a voltmeter on the T-R line from the 811 and confirm that you will
key a POSITIVE DC VOLTAGE (less than 200VDC) to ground. Then put an
ammeter across the T-R line (which should KEY the 811 T-R relay) and
measure the CURRENT required to key the 811 T-R RELAY.
There is never ever any moment during a contest, with the exception of
the first/last half hour on high band openings/closing, where the rx
signals drop below S9.
If not, you're antenna situation really sucks big-time. Go visit a
contest station sometime and find out.
The signal report
Arghwhat a nit-picker's delight.
The reason why you get You're S9 but please repeat everything is
that you can be S9 and be covered by QRM/QRN.
Check out what the ARRL says about RST (page 2 of the document).
NOTHING about volts. It's all subjective.
In a message dated 5/16/07 10:17:09 PM Eastern Daylight Time, [EMAIL PROTECTED]
writes:
I have G5RV's original article introducing the antenna.
He specifically states that it is a 20M antenna, and yet it's
now somehow become a do-all-bands wonder ... an almost
cult thing.
In all the G5RV
How about bringing back the 6U5 Tuning eye.
- Original Message -
From: Geoffrey Mackenzie-Kennedy [EMAIL PROTECTED]
To: DOUGLAS ZWIEBEL [EMAIL PROTECTED]
Cc: Elecraft Discussion List elecraft@mailman.qth.net
Sent: Thursday, May 17, 2007 6:32 AM
Subject: Re: [Elecraft] S meters in the
I've heard the 6dB per S unit figure in conversations for years, but
I've never seen it written in any authoritative source. However, I note
that Collins receivers from the 50s and 60s, having S meters marked in
both dB and S units, seem to indicate that 3 S units = 10 dB, equivalent
to a
It would be easier just to dump the 6db per S unit
scale and do what the professionals do, that is use
the DbUV scale. You could then have readings in
precise 3db steps. Most new military receivers are now
calibrated in DbuV.
However with the advent of new generation of Software
Defined
There was an article in the paper about CFL lamps ( those twisty energy
saving bulbs ) and they are supposedly dangerous. Drop one and it's, open
the window and shut the doors on the room, call the EPA!
http://www.epa.gov/mercury/spills/
I have the things all over the house and didn't even
What many do is put up as much wire as possible, then
take the feedline down to a remote balanced tuner in a dog house,
then run coax or hardline to the shack.
That is the best setup for high power AM multi band work
I suspect.
Running AM, you have to derate everything like baluns and traps
to
Hi all,
I just finished building K2 #6100, and will start my KSB2 tonight. I
am a no-code General, and work primarily SSB QRO, although I look
forward to QRP'ing with my K2. In most cases, for any portable work I
might do, I will most likely carry at least two enclosures: the K2
and some
Now there's a thought :-)
73,
Geoff
GM4ESD
Phillip Buckholdt [EMAIL PROTECTED] wrote
How about bringing back the 6U5 Tuning eye.
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Well... The REAL standard, the one that EVERYBODY agrees on, is
that S9 = 50 uV. How many dB an S-unit is depends on where you
start from to get there.
Everyone except the receiver (and transceiver) manufacturers. If you
run a curve of S-meter reading vs input voltage using a calibrated
Hi Greg,
If you search the list archives, you'll find all kinds of info for this.
I put my KPA100 and KAT100 in an EC2 last fall and find it to be a really
slick setup. Lyle, KK7P has a nice webpage full of pics and details for
doing the split: http://www.kk7p.com/k2kpa100.html
To answer your
Boy does that bring back memories! My first SW receiver, extracted from an old
upright radio/phono console in 1957, had one of those, and I'll never forget
tuning in WWV for the very first time and watching the dark center narrow down
to a slender wedge. And you could see the orange filament
I agree that 5 dB per S-unit makes good engineering sense. Sorry to the
standards group, but 6 db per s-unit just doesn't add up. Having the
S-meter at S-1.5 with the antenna disconnected? Can we say useless?
With modern rigs, it would be a fairly simple matter for the
manufacturer to use the
Its perfectly understandable to have a bubble of postings when a manufacturer
releases a new
radio. What is NOT needed, is a mailing list for each new radio! There's not
a TenTec OmniV,
TenTecOmniVI, TenTec Argosy, TenTec Corsair, TenTec Corsair II. series of
mailing
lists... it would
On Thu, 17 May 2007, Phillip Buckholdt wrote:
How about bringing back the 6U5 Tuning eye.
Ah...great memoriesas a kid, when we spent time at the shore, the owner of
the house had one of those beautiful console floor model radiosI was a
tinkerer, and used the tuning eye to determine
I have recently come into possession of a full KX1 (S/N 1601)
(including the paddle, 30m/80m board, and ATU). I did the inventory
yesterday and everything checked out.
[Well, there was one issue... L9 (100uH RF choke) was a min. rather
than a micro (so it is slightly *larger* than it should
On Thu, 17 May 2007 [EMAIL PROTECTED] wrote:
There was an article in the paper about CFL lamps ( those twisty energy
saving bulbs ) and they are supposedly dangerous. Drop one and it's, open the
window and shut the doors on the room, call the EPA!
http://www.epa.gov/mercury/spills/
I have
Hi Bob,
I've never seen it written in any authoritative source.
For example:
IARU Region 1 VHF Managers Handbook
Version 5.11, 07. 08. 2006
http://www.iaru-r1.org/VHF_Handbook_V5_11.pdf
Page 156
IARU Region 1 HF Managers Handbook
Version 6.0, January 2007
another new rig, with some interesting features. I've
not seen MSR price on it... Like the USB port usable
with thumb drives tho'
http://www.ab4oj.com/icom/ic7700/9499_7700BROCHURE_507low.pdf
73,
Julius
n2wn
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Post to:
-Original Message-
From: [EMAIL PROTECTED]
I agree that 5 dB per S-unit makes good engineering sense. Sorry to
the
standards group, but 6 db per s-unit just doesn't add up.
Sure it does. 6 dB is four times the power. Half an S unit is doubling
the power.
5 dB per S-unit means
I've had a couple of off-list replies as well, providing good defense
for the 6 dB per s-unit standard. Yes 6 dB is 4x the power but a linear
amp is usually 10x the power which is 10 dB or 2 s-units. Also S9+10 dB
would be a nice even 2 S-units over S9 or the equivalent of S11. If it
were 6
On May 17, 2007, at 8:24 AM, Darwin, Keith wrote:
producing a linear meter. There is a lot of room for meters to be
better without having to be lab quality. (Eric, hope it's not too
late
for the K3).
The beauty of a radio where all the display functions (including the
S-meter) are
On Thu, 17 May 2007 12:47:53 +0100
David Pratt [EMAIL PROTECTED] wrote:
I have searched the FAQ but don't seem to be able to
find the answer to this...
Does the K3 have its own internal monitor speaker?
Yes, but does it support Dolby Digital, 6.1/7.1 surround sound support
or is that
A quick question for an experienced (or anyway, confident!) builder: I am
winding the first toroid,RFC14, for my K2 and seem be be inadvertently
stripping a bit of the red enamel off the wire when I sew it through the
toroid. I don't remember having this happen with the KX1. It appears that
Hi Greg,
Congratulations on building K2 S/N 6100.
I built the EC2/KPA100/KAT100. The rig operates the same as if the KPA100
was installed in the K2.
It is a great feature to be able to quickly disconnect the K2 from the
EC2/KPA100/KAT100 to take just the K2 to the field for outside QRP
Jim Brown wrote:
Everyone except the receiver (and transceiver) manufacturers. If you
run a curve of S-meter reading vs input voltage using a calibrated
generator, you will find that it's close to 6dB/S-unit around S9, but
close to 3 dB/S-unit when you get below S6 or S7. And I'm not talking
I just looked at them recently and noticed that some come with mercury and
some don't. It seems the more expensive lights do not have mercury in them.
It just seems like anything that is healthy for you always costs more.
Gary, N7HTS
On Thu, 17 May 2007 10:06:44 -0400
Brett gazdzinski
The list seems to have a new feel with the
introduction of the K3. In the past it has been
dominated by the QRP, kit builder, backpacking, tree
hugging crowd. Elecraft is in the process of bringing
contesters into the fold and that means onto the list.
Did you know they burn trees to power their
I had the same problem winding the small cores on the SSB board. I was
careful but still saw some of the enamel come off the wire and decided to
leave it as is.
This should not be a problem unless two adjacent turns are scraped and
touch to cause a shorted turn. Also be careful of the small
As someone who is about to launch into this portion of his K2
build...would it be advisable to coat the scraped bare areas with a
clear fingernail polish to try and re-insulate that area?
David King KE7EKA
Robert Johansen wrote:
I had the same problem winding the small cores on the SSB
LOL, I guess you have a point!
The list has been dominated by CW fans probably more than anything.
What is more scary than adding contesters is adding SSB contesters.
SSB-QRO-SUV-contesters plus CW-QRP-kitbuilding-treehuggers in the same
room. This ought to be fun :-)
- Keith
- Original Message -
From: Don Rasmussen [EMAIL PROTECTED]
kit builder, backpacking, tree hugging crowd.
I do *not* hug tress, I just talk to them..
Simon 'All my friends have bark' HB9DRV
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Elecraft mailing list
Post to:
Now Don, what did you mother teach you about picking fights? What does your
religion teach you about judging others? I think that most of us here are
probably still the QRP, kit builder, backpacking tree hugging crowd.
Gary, N7HTS
On Thu, 17 May 2007 09:10:48 -0700 (PDT)
Don Rasmussen
I belong to the QRP, kit builder, tree hugging, QRO, contesting crowd.
Some times you just gotta be AC/DC... ;-)
vy 73 de toby
--
DD5FZ, 4N6FZ (ex dj7mgq, dg5mgq, dd5fz)
K2 #885, K2/100 #3248
K3/100 #??? ( #200)
DOK C12, BCC, DL-QRP-AG
___
Elecraft
Ken Kopp wrote:
We Yanks have always resisted the world order when it comes to
measurements . Lessee, the last I knew it was just us and Libya
holding out ...
Quite the contrary, Ken. We Yanks are going metric all right ... inch
by inch.
73,
Fred K6DGW
- Northern California Contest
An S-meter by itself is pretty useless for comparative measurements, but
it's easy to calibrate!
A simple check with a step attenuator (e.g. Elecraft AT1) in the receive
antenna line will show one how may dB/S-unit the meter indicates. With an
Elecraft XG1 (or equivalent) signal generator it's
A friend's coax-fed G5RV worked ok with his 990 (built-in matching unit).
No external tuner needed. It worked all bands 160 to 10m: on 160 I made
him a simple switch to short the coax and tune/match against ground. His
needs were modest - no dx, just local chit chat. It was sensitive to coax
Simon Brown (HB9DRV) wrote:
I do *not* hug tress, I just talk to them..
The real question is, Do they talk back?
Fred I hope the voices stop soon K6DGW
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On May 17, 2007, at 9:27 AM, Robert Johansen wrote:
This should not be a problem unless two adjacent turns are scraped and
touch to cause a shorted turn.
Has anyone epoxied their toroids after they were wound? Seems to me
it would prevent windings from shifting and it would reinsulate any
- Original Message -
From: Fred Jensen [EMAIL PROTECTED]
I do *not* hug tress, I just talk to them..
The real question is, Do they talk back?
They send me QSL cards...
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You must
I like mine in the EC2.
See photos 2 and 22 at:
http://www.pituch.net/p/Steve's%20Page/Radio/equipment%20frames/frames.html
or just go to www.pituch.net
72,
Steve, W2MY
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You must be a
But do they *bark* back?
just kidding, I just had to post this silly/lame joke
love HRD, Simon. Thanks for all the effort you put into it!
73 de Glenn ON4WIX
K2/100 s/n 5361
K3/100 on order
- Original Message -
From: Simon Brown (HB9DRV) [EMAIL PROTECTED]
To: [EMAIL PROTECTED];
I am in the process of installing the KPA100 Upgrade Rev A, Oct 21, 2006.
Page 10, resistance measurements, Q1 base measures 19.6 ohms and Q2 base
measures 11.1 ohms. The instructions call for a reading of 11-16 ohms.
First, I would expect the two to be much closer. Second, does the 19.6 ohm
Jim, the original G5RV is a 1-1/2 wave 20 meter *only* antenna that offered
a good match for the coaxial line by using an open-wire matching section. As
you know, such matching sections are frequency-dependent, like any fixed
tuned matching network. The G5RV allowed the use of the newly-available
Icom has announced a new transciver, the IC-7700, likely priced in between the
IC-756 ProIII and the IC-7800. See http://www.ab4oj.com/icom/ic7700/main.html
The K3 appears to be both a better performer and a better value.
Lou, W0FK
___
Elecraft
Greg Derda, wrote:
I just finished building K2 #6100 …two obvious configuration for my K2 are:
1. K2/100 with separate KAT/100
2. K2 with EC2/KPA100/KAT100 (and KIO2 in the K2)
Question is: What are the obvious benefits or quirks between the above
setups? Specifically, I am
Thanks to all for all of the great replies so far!!
One more quick question
Is there anything to consider if I were contemplating the purchase of
an already built EC2/KPA100/KAT100 w/ cables? I am thinking that all I
would need to do is install a KIO2 in my K2(?).
Greg
ki4mmm
Since you included my posted link, I assume you mean me - you will note that
my callsign is in my email address.
But for those having trouble reading my email address, its M0XDF.
Have I missed something here? Is there some list rule that says I should
sign my mails with my callsign, separate from
Yes. Or build the cable referenced in Elecraft's Application Notes as noted
by Bob.
Have fun - I think you'll really like it.
Dave W8FGU
-Original Message-
From: [EMAIL PROTECTED] [mailto:elecraft-
[EMAIL PROTECTED] On Behalf Of Greg Derda
Sent: Thursday, May 17, 2007 2:57 PM
To:
I'll go along with that - how about delimiting the 'K3' with [], as per the
subject line. That way it will be even clearer.
Er, David, did you get that or did it drop into your K3 folder?
:-)
73, M0XDF
On 17/5/07 09:05, [EMAIL PROTECTED]
[EMAIL PROTECTED] sent:
Message: 20
Date: Wed, 16 May
I'm about to get a KX1 also and found some interesting
links on the build...
http://www.kc5wa.us/kx1/1727.html
http://www.kc5wa.us/kx1/kx1.html
-C
--- John Shadle [EMAIL PROTECTED] wrote:
I have recently come into possession of a full KX1
(S/N 1601)
(including the paddle, 30m/80m board,
Along the same lines - does remoting the KPA100 do anything to reduce the
10m birdie at 28.018?
Thanks!
--Mike WQ5C
At 01:56 PM 5/17/2007, Greg Derda wrote:
Thanks to all for all of the great replies so far!!
One more quick question
Is there anything to consider if I were contemplating
In a recent message, David Ferrington [EMAIL PROTECTED] wrote ...
Have I missed something here? Is there some list rule that says I should
sign my mails with my callsign, separate from my email address and plainly
at the bottom of every post?
What you have missed, David, is 1) keeping quotes
Agreed Chrs, I hope the K3 includes an auto character spacing keying option.
I've always used external keyers with my K2 for that reason.
One other thing, re band data output. I hope the K3 puts out 4 bit band
data, i.e. compatable with most contest loggng programs, FT1000mp etc.
73 Fraser
Hello,
I do have a K2 and KPA 100 (build-in).
For some reason I do get HiCurr messages on a few band (which I didn't get
before)
I did a test with a dummy (50 Ohm up to 1 Ghz) and a Bird 43 power meter
The result is:
28.500 12,3V / 2,66A 100W+
24.900 12,3V / 2,44A 100W+
Eric,
That insulation scraped off can lead to shorted turns (a bad thing) - t
happens mostly with the ferrite cores which tend to have sharp edgesm
the powdered iron cores usually do not have sharp edges.
To prevent the scraping - do not *PULL* the wire through the core - push
it through.
John,
Build the base KX1 and ATU first and test it, then add the KXB3080. The
KX1 will not work if you leave out the parts that are to be changed for
the KXB3080.
Look at the Elecraft website Builder's Resource page to see how to mount
that inductor - the micro ones are no longer
Evert,
Take a look at KPA100 resistors R19 and R20. If they have blue-gray
bodies, they are likely to be inductive (which causes the problem you
mentioned).
The new non-inductive resistors have reddish-brown bodies andcan be
obtained by a note to [EMAIL PROTECTED]
Now off to more
Kieth,
If -73 dBm is equal to S-9, then at 6 dB per S unit, S-0 would be -140
dBm - sounds about right to me for a modern receiver.
73,
Don W3FPR
Darwin, Keith wrote:
I agree that 5 dB per S-unit makes good engineering sense. Sorry to the
standards group, but 6 db per s-unit just doesn't
In a message dated 5/17/07 11:47:30 AM Eastern Daylight Time,
[EMAIL PROTECTED] writes:
The 5RV will only provide the correct match transformation at a specific
height and in a straight line. If the ends droop the impedances are
wrong and the match between the balanced line and the coax
[EMAIL PROTECTED] wrote:
Mark [EMAIL PROTECTED] wrote:
There is never ever any moment during a contest, with the exception of
the first/last half hour on high band openings/closing, where the rx
signals drop below S9.
If not, you're antenna situation really sucks big-time. Go visit a
contest
Toby Deinhardt wrote:
I belong to the QRP, kit builder, tree hugging, QRO, contesting crowd.
That would also be me. Whatever floats your boat is fine with me, lots
of things in ham radio float mine :-)
73,
Fred K6DGW
- Northern California Contest Club
- CU in the 2007 CQP Oct 6-7
-
Fraser, look at FAQs, Interfacing, Accessory Connector. Pin Outs are :
Band Data OutPin
0 13
1 3
2 9
3 14
Cmn 5
I will pre-wire a connector up for that to drive my Topten
i have a little used and in mint condition yaesu ft-840 with inrad 500cycle
filter,mic,manual and original box that i would like to swap or trade for a
basic K2 unbuilt or partially built. If interested,please contact me. thanks,
john kf7om
___
The list has been dominated by CW fans probably more
than anything.
What is more scary than adding contesters is adding
SSB contesters.
SSB-QRO-SUV-contesters plus
CW-QRP-kitbuilding-treehuggers in the same room. This
ought to be fun :-)
OK, now you've slighted the digital contesters, the my
I like it, great stuff Thom!
David Wilburn
[EMAIL PROTECTED]
K4DGW
K2 #5982
Thom LaCosta wrote:
On Wed, 16 May 2007, Bill W5WVO wrote:
This is a solution (and discipline) that I've seen officially
instituted on other high-volume mailing lists. If everybody adopts the
discipline, it works
The closest thing I could find to the size of the new
K3 is the Icom 735. This was a compact transceiver
that I used for 7 years in the 80's. It was easy to
toss in the mobile, and worked real well at home. Now
K3 comes along with (hopefully) Orion class
performance in this compact package. Well
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