Lyle,
Thanks for the explanation. As with most hams, I like the sound of my own voice
(!) and listening to a delayed version of my own voice on phones during a long
contest, I find quite wearing. Would it be possible to menu-select the monitor
output prior to any of the processing you mention?
Well Jim
If elecraft are so rich then after chalking out over 3k sterling for
my full loaded .ish k3 then do you think they could perhaps post
me a nice Red cap and k3 button!
Their are now 3 of us in my club, Newbury RC, who have k3's and none
of us have ever seen a gorgous k3 cap let
Guy, K2AV wrote:
I was going to say, all of that being complained about, can be set any
way you want. Try the SHIFT control on the front panel. Set the
crossover *anywhere you want it*. The SHIFT setting is remembered by
mode.
Being able to hear down there was specifically requested
DOUGLAS ZWIEBEL wrote:
Lyle said:
...Most people do not notice...
Maybe most people simply don't complain?
Oh come on. This *is* the Elecraft reflector! :)
-
Julian, G4ILO. K2 #392 K3 #222.
* G4ILO's Shack - http://www.g4ilo.com
* KComm - http://www.g4ilo.com/kcomm.html
* KTune
Hi Ken
I would prefer a free K3,airplane tickets for the Dayton Hamvention and a K3
Coffee mug.
Anyone one of these I would expect from Elecraft, bless their souls they so
kind.
As the saying goes, keep on dreaming!
A better alternative would be joining any London Merchant Bank, I hear
You forgot the 5 Star Hotel Resort Accommodation John!!
Snip
Hi Ken
I would prefer a free K3,airplane tickets for the Dayton Hamvention and a K3
Coffee mug.
Anyone one of these I would expect from Elecraft, bless their souls they so
kind.
As the saying goes, keep on dreaming!
A better
Me too. Those unused Yaesu hats are reflected in Yaesu prices. :-)
73 to all
Geoff
G3UCK
- Original Message -
From: Jim McDonald j...@n7us.net
I'd prefer they focus on making the radios that meet our needs and
continue
to deliver outstanding support than spend money on hats. All
Thanks for the input Guy,
Actually, the lengths are just a result of me trying to get this antenna
optimized for 40m with my Yaesu 840 and the MFJ unbalanced tuner. This is my
first HF antenna, and I never intended for it to be a true multibander. And
yes - it never performed well on 20m at all.
Hi Daniel!
I too have a KX1/AT1, and in fact, noticed this issue on the KX1 before I
was even done building the K2. I just hooked the KX1 back up, and I'm
getting nearly the same results.
40m 8.1:1
30m 1.3:1
20m infinity:1
It's been a while since I've used it outside, but I used to hook it up
Let me add some quantified data on monitoring delay.
In the telephone industry, the signal from the transmitter back to the
earpiece is is called sidetone. In the conventional analog telephone
network, sidetone is generated locally in the telephone instrument, but
can also come from
Very interesting Jack.
I might get round to injecting an audio tone into the mic input
and measure the delay to it appearing at the TX monitor.
73
Stewart G3RXQ
On Sat, 16 Jan 2010 07:12:07 -0500, Jack Smith wrote:
Let me add some quantified data on monitoring delay.
In the telephone
Thanks. There's now coffee all over my monitor and keyboard. What a mess...
James K2QI
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of elelist984
Sent: Friday, January 15, 2010 10:18 PM
Cc: elecraft@mailman.qth.net
Hi,
Similarly, try injecting an RF signal into the antenna jack and see
how long it takes to show at the AF, or vanish when the signal is
removed. You will find it interesting. Ultra contesters should
stick to analogue if they want nano second responsiveness to keep
their rate up.
Dave,
It is of great interest that your KX1 tuner could handle the tuning if
you connected it directly to the balun. Fact is that the KXAT1 range is
quite limited due to only having 3 inductors and 3 capacitors to switch
in and out trying to find a match - the KAT2 has 8 of each and has quite
The Kenwood HS-5 headphones are designed for radio communications and
sound very good with the K3.
They are mono but it is easy to convert them to stereo.
The cord has 3 wires: ground, left speaker, right speaker.
Left and right speakers are wired together in the mono plug AND in the
earpiece
Hi Daniel and all,
I have all four Elecraft rigs, including internal ATU's. The ATU in the KX1
is the least effective of all of them. While my K2 and K3 ATU's can tune my
R7, which is optomized for around 7130 khz on 40 meters, to nearly flat
on each end of the band (the R7 has fairly sharp
FS: One K3 button - $500 firm or trade for KRX3.
73,
Tom N2CU
K3 #3582
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This
hi all,
DOUGLAS ZWIEBEL schrieb am 15 Jan 2010 um 19:29:
Lyle said:
...Most people do not notice...
Maybe most people simply don't complain? I have lots of friends with
K3s (I mean LOTS) and I am not aware of even one who does NOT notice
the delay. Of course, all my friends are
Well this might seem too long to discuss but I still can't hear with my 60
years old ears any delay when I am using the monitor,here is recording I did
this morning using the Yamaha CM500 monitoring myself with the K3 monitor,the
audio from the rear line out conector going to the lap top line
Dave,
Have you tried putting a dummy load in line and seeing if the tuner will
tune 1:1 with it?
This might tell you if the problem is in the tuner. You could also place the
load further along the coax and see if the problem disappears.
My KAT2 can tune almost anything it seems, but it is
Dave and all,
Are you aware that you can use both tuners in tandem? You can set the
manual tuner quickly for a close match and then let the internal tuner
refine the match.
For instance, you have an antenna that is difficult to match, but you
already have a list of setting for a close match
Hi Hector,
This is not about a delay in the monitoring signal itself.
It is about a delay between the audio coming out of your first modulator
(the mouth :-) and the radio's monitor out. Due to calculations/AD-DA in dsp
there will always be a certain delay (latency), which imho is quite small in
anything more than 50 ms is cause for concern and values exceeding 100
ms are a red flag. (A related topic is overall delay, which causes
uncertainty over when one speaker stops and other begins. This is a real
problem in tandem satellite links..
Typical 80 ms of latency over the Internet is
I'm the OP and I'm never mistaken :-)
This is actually humorous in a strange sort of way. Someone makes a
well-intentioned suggestion for a change that will improve the performance of
the radio and the Elecraft can do no wrong and I'm perfectly happy with mine
contingent leaps to conclusions
Hi all,
There will be always people they care about the delay and people they
don't care about it.
A year ago I talked about this topic in this list.
I use the monitor for 2 thinks:
1st) to adjust audio. For this it is great to have it after all signal
processing and delay isn't critical.
2nd)
Of course two tuners doubles the tuner losses. Tuner losses amount to
10 to 15% per tuner, sometimes higher. If you're not folding back power
after the first tuner does its match and it's under about 1.8, don't
bother. There is nothing real to be gained.
If you need both tuners, the real
There is one benefit to a low match at the tranceiver. Most builtin power
meters are only accurate at 1:1. If you're trying to ensure you are qrp
and your transmitter measures output power to maintain that level you need
to ensure the match is correct.
jim ab3cv
Brian,
While all that is true, the operating convenience that is afforded by
using that method can be more significant than the added loss - it all
depends...
An L network usually is a low loss tuner. All the Elecraft tuners are
of the L network type, as are many other 'auto-tuners'
The old
I can say without reservation that my (and others') K3 is a *much* better
radio now than it was a year ago when I first put it into operation and some
of that is due to my complaints.
To which I add that we are always looking for ways to improve the K3 and
other products to better meet the
For those of you presently using or those considering installing a G5RV
antenna, take a look at the ZS6BKW antenna. It is a modified G5RV with
slightly different dimensions which result in better SWR bandwidth
characteristics than the G5RV. It even performs well on 6 Meters. You can
check it out
Was Conway's question ever adequately explored/answered? As a current K2/100
( K1) owner and prospective buyer of a K3, I'd love to hear the opinions of
those who already own both rigs. The Ten-Tec Orion II is also on the table
with regard to my anticipated 2010 present to myself. (My off-duty
~
N2CQ QRP CALENDAR
JANUARY 16 to FEBRUARY 14 2010
~
80 METER FOXHUNT (CW) *** QRP Contest ***
Each Tuesday Thru Mar 16, 2010
9 PM to 10:29 PM Eastern Time USA
Info:
There are many kinds and configurations of tuners, each one having
differing weak spots. There is not a single one outside of military
prices which does not have impedance ranges that are inappropriate for
the particular tuner design. Some tuners use CONTINUOUSLY variable
inductors AND
On Sat, 16 Jan 2010 10:02:49 -0500, Paul Christensen wrote:
When using a manual key or paddle, it necessitates the use of a local
sidetone injected into the headphone audio.
The same thing happens when a live talker (or singer) tries to use a mic
on the field in a stadium (or sing the anthem)
Dave - If an antenna suddenly changes its behavior, the cause is usually a
broken connection somewhere, or a problem with the feedline, either shorted or
open. So check these all first. It is easy for there to be a break in the
ladder line, particularly if it uses a solid conductor that is hard
A typo..
Eric WA6HHQ
_..._
Brett Howard br...@livecomputers.com wrote:
Whats the difference between a KFL3B-FM filter and a KFL3A-FM filter?
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Hi all,
As usual, I will be running the UK Elecraft net at 09:00 on 3658 +/- QRM. I
hope to see you there :)
73 Ian
--
Ian J Maude, G0VGS
SysOp GB7MBC HB9DRV-9 DX Clusters
Member RSGB, GQRP 9838, FISTS 14077 | K3 #455
http://www.amateurradiotraining.org
I receive the reflector in digest mode. Today I received Issue 30 and 32.
What happened to Issue 31? Is it lost in the ether or did my server somehow
overlook it?
Terry, W0FM
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Hi everybody,
I recently started building a K2 and I've just finished the assembly of the
control board. My resistance checks are all within specs except two of them
are
just a little bit off. My readings at pins 29 and 30 of U6 are a little bit
higher than those listed in the table. (I'm
I have been chasing this noise in my urban neighborhood for several years now.
It usually visits during the daylight hours and stays for several hours. It has
a rhythm and is across all frequencies and bands. I have pulled the big switch
in my house and the noise is still with me (listening
Paul,
Yes, those are OK. They are the DOT and DASH lines to the
microprocessor and have nothing else but U6 on the Control Board to
bring the resistance down.
In general, a 10% deviation from the values listed in the manual are
close enough.
73,
Don W3FPR
Paul Huff wrote:
Hi everybody,
Here is a web site that might be of help to you in identifying this. It
is the RF noise identification web site.
http://www.arrl.org/tis/info/HTML/rfi-noise/appliances.html
To me it sounds a lot like the treadmill noise clip.
Hope this is of help.
73, John KD8K
Bill Hammond wrote:
I have
Bill,
Sounds like a treadmill as my next door neighbor has one and cause problems,
mostly on the 30m band. He also has a Kenmore HE-3 washing machine which is
an RFI generator. My 30m 4sq is about 200 feet from his house and cause an
S9 hash noise on 10.103, 10.118, etc...PITA ! ! !
73 es gl
Hi gang,
It looks like neither Mark nor I will be able to make the net tomorrow.
Therefore, it is a good time for one of you with a capable station to come
forward and volunteer as a net control station. It isn't
difficult. The pace is easy and the group is cooperative. Remember that it is
I use sync detect for listening to broadcast AM. However, when I turn on
the sync feature, I find that I must shift frequency up 10 hz.
Anyone else noticed this?
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The delayed sidetone issues are well known in broadcast news
circles. They first appeared with satellite circuits where
the 250 msec delay gave even the most accomplished speaker
a stutter. The problem became even more acute when field
cueing migrated from analog to digital cell phones and
Hi James,
Thanks so much for the extremely informative reply! I will dig deep into a
lot of your suggestions later tonight. I think I may have overcomplicated
the issue, so let me see if I can give it a shakedown.
First off, lets forget everything besides 40m. That's really the band I am
It sounds like you have a broken/shorted wire somewhere. For testing, could
You run coax all the way to the antenna and see how that does? If you
Antenna is insulated wire, don't overlook the possibility of a break in the
Antenna itself. With 67 feet of wire, you should get a fairly decent
Several have asked if I can do Elecraft caps and T-shirts
There is a hat attachment for my sewing machine that
will allow me to embroider caps, but it's cost would make
it difficult for me to make a profit.
Unless I limited orders to one or two colors, obtaining
and stocking the hats would
Dave,
No, you are not an idiot, nor drunk, but you may be confused by the
impedance transformation effects of a feedline.
I suggest you take a look at the ARRL Handbook or Antenna Book chapter
on Transmission Lines, especially the sections dealing with transmission
line matching sections if
If you are really interested in 40M only, why on earth don't you simplify your
life and get rid of the tuners, the ladderline and the BL2. Run coax from the
antenna spigot on the radio to the antenna. Coil up a few turns of it at the
feed point if you insist on a balun (I don't necessarily),
Bill,
I'm afraid it's not unique to your neighborhood. I've heard the same noise at
my station in NC. It doesn't match the treadmill example referred to (at least
at my QTH) because the roughly 3 KHz 'beat frequency' doesn't vary. When it's
there it is audible from about the 17m ham band
I used one that a friend brought along for us on ZS1RBN several years ago
and it still required a matching unit. I couldn't say how it performed
compared to the 5RV, but the figures look good on paper. As with most wire
antennas on dxpeditions, you rarely get the things at optimal height;
I'd be happy with either a white cap and black embroidery or vice versa.
Those are the colors on the Elecraft home page.
73, Mike NF4L
Ken Kopp wrote:
Several have asked if I can do Elecraft caps and T-shirts
There is a hat attachment for my sewing machine that
will allow me to
The bandwidth and offset will need to be set for what they actually
are. And at the crossover, even what you measured you are down to the
steep part of the curve. Another 200 Hz and you will be way down.
I'd need to check out that presumably on transmit with Elecraft.
That word has gotten me in
Good Evening,
This week has been almost constant rain. It varies from heavy to light but
rarely ceases. This is what a 'normal' winter is like here in Western Oregon.
When those fleeting sights of the sun flash by we all look up and wonder at the
orange ball in the sky. We see it so
I'd need to check out that presumably on transmit with Elecraft.
That word has gotten me in a lot of trouble over my lifetime.
The Tx and Rx bandwidth and opposite sideband rejection are not the
same. Rx adjustments do not affect the Tx.
73,
Lyle KK7P
I know for sure Elecraft team always hears and read us,so,right now they are
thinking what to do to surprise us at Orlando hamfest with some goodies,I
expect to see hats and T shirts that has the Elecraft logo embroided or
something like that.
In any case I will be early on saturday at the
Hello Gary!
I use sync detect for listening to broadcast AM. However, when I turn on
the sync feature, I find that I must shift frequency up 10 hz.
Anyone else noticed this?
Tap CWT if AM-S is not automatically slewing to correctly tune in the AM
station.
Not being sighted, I know the
One thing that I get out of the delay is that it keeps it from causing
feedback into my mike, so I can leave it up enough that in contests so
I can listen to the canned speech from the computer. I can hear my own
voice better because it's off the bone conduction audio (mentioned by
someone else).
I'm trying to understand the bias requirements for the CM-500
specifically and electret/condenser (which is it) mikes in general.
Yamaha's adaptor uses 3V (2 AAA batteries) in series with a 2.2K
resistor and a 1 microfarad DC blocking capacitor. I would rather
not depend on batteries. My
Thanks Martin,
My Kenwwod HS-5 are now stereo. They are a very good sounding earphone. Well
suited for ham radio.
Thank you,
N6XVT KARL
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Is it possible to select pre vs. post audio for the MON?
I'll take a look, but no promises or New Year's resolutions :-)
73,
Lyle KK7P
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I have done this in the past to deal with ladder line length on multi
band use.
cut the following lengths of ladder line.
1 foot
2 foot
4 foot
8 foot
Solder alligator clips on all ends
By using these in combinations, you now have the ability to increase
your line length from 1-15 feet.
Test SWR
On Sat, 2010-01-16 at 03:47 +, rfenab...@gmail.com wrote:
Why not Elecraft Patches suitable for the fans to sew onto Hats, Jackets,
Shirts, Pinafores...etc...(:-))
Patches? We don't need no steenkin' patches
Alan N1AL :=)
73s
Gary
VK4FD
Sent via BlackBerry® from Telstra
Snip
Why not Elecraft Patches suitable for the fans to sew onto Hats, Jackets,
Shirts, Pinafores...etc...(:-))
Patches? We don't need no steenkin' patches
Alan N1AL :=)
End Snip
My feelings are crushed..(:-))
Gary
VK4FD
Sent via BlackBerry® from Telstra
Brett,
Those numbers are similar to what I measured on my K3. It varies by
band, but before modification I was getting in the neighborhood of -6 dB
with preamp on and -17 dB with preamp off. After modification I
measured +4.5 dB with preamp on and -6.5 dB with preamp off (at 10 MHz).
A 0603
Hi Gary,
It's a take-off from a famous line in an old film:
http://en.wikipedia.org/wiki/Stinking_badges
Sorry, I've got to remember that this is an international list and
American cultural references may not always be understood. :=)
Alan
On Sun, 2010-01-17 at 06:40 +,
I presently have a K2 with 15 to 17 watts out. When I need QRO it runs my
AL-811H amp up to a few hundred watts so I have never needed the 100 watt
finals.
I am thinking that I will be able to do the same thing with the K3 as long as
it has about the same output.
For those with the 10 watt
Into a good [50+j0] load, max is 12W.
Just buy the PA. It's a steal.
matt W6NIA
K3 #24
On Sat, 16 Jan 2010 23:27:25 -0800, you wrote:
I presently have a K2 with 15 to 17 watts out. When I need QRO it runs my
AL-811H amp up to a few hundred watts so I have never needed the 100 watt
70 matches
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