N4CU - Bob - FL - K2 - ?? SN reportedly 358
Is this correct Bob?
Kevin.
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Good Evening Folks,
Tonight twenty meters was plagued with QRN and forty was hammered by
QRM. RTTY was making it difficult to copy some of the S3 and lower
stations. But my friends in the center helped a great deal. Tom and Dave
shared NCS duties while working into the SE, West, and South
One drawback I think is that they don't provide an ALC output, and the
gain varies quite a bit from 10-160m... so you will have to watch your
drive levels, especially on SSB.
Larry N8LP
Ken Bessler wrote:
From: John Harper <[EMAIL PROTECTED]>
Reply-To: John Harper <[EMAIL PROTECTED]>
To:
From: John Harper <[EMAIL PROTECTED]>
Reply-To: John Harper <[EMAIL PROTECTED]>
To: Elecraft
Subject: [Elecraft] 10-160 amps for QRPers
Date: Sun, 05 Feb 2006 16:57:10 -0500
For those who are in the market for something to boost a QRP rig's output
cheaply up to 300-400 watts,
http://www6.ma
Alexandra Carter wrote:
Is is possible to add a de-bounce circuit to the hand key? 73 de Alex NS6Y
The easiest way to do it is with old technology. I debounced my bug by
having it key a Radio Shack 12v reed relay. There is a 10 uf capacitor
accross the relay coil, or otherwise it is fast en
Alex,
It certainly is, but most circuits using a single pole single throw switch
(normal key contacts) suffer from the same difficulties as the K2 key input
circuits - one must make some assumption about the duration of the bounce
and decide if it is a valid key closure or not. To do it in a fool
Is is possible to add a de-bounce circuit to the hand key? 73 de Alex
NS6Y
On Feb 5, 2006, at 5:41 AM, Don Wilhelm wrote:
David,
I would rather speculate that it is a uP timing situation coupled with
contact bounce at the key and the forward voltage drop of the diodes.
If
one of the diodes
Congratulations to our two newest award winners!
Karl Anderson, N7NLU earned Worked All States certificate #44.
Paul Genow, K8PG earned Ragchewer Award #35.
My mail box is open; and my printer's all warmed up just waiting to hand
out awards to the Elecraft community. C'mon guys!
73 de Larry
Bob,
Did you follow all the instructions in the KAT2 manual for setting C55,
including the initial settings for the fwd and refl pots? Are you using a
good 50 ohm non-reactive dummy load?
If the answer to those questions is YES, then you can try presetting C55 by
monitoring the voltage at the to
John Harper wrote:
For those who are in the market for something to boost a QRP rig's
output cheaply up to 300-400 watts,
http://www6.mailordercentral.com/hyelectronics/products.asp?dept=112
True, they are CBish but the DXpedition to Somalia (6O0N) used them. The
same company also makes more
For those who are in the market for something to boost a QRP rig's output
cheaply up to 300-400 watts,
http://www6.mailordercentral.com/hyelectronics/products.asp?dept=112
True, they are CBish but the DXpedition to Somalia (6O0N) used them. The
same company also makes more models, including th
Steve,
Re; your post to the reflector of Feb. 04.
I too am having difficulty getting my KAT2 tuner to work properly in
being unable to adjust C55 to move the reading from HI in CALn.
If you figure out what is wrong please advise me what you find.
I'm baffled, I built a KAT2 a year ago and had no
On Sun, 5 Feb 2006, Bekir Kemal Ataman wrote:
I think the main problem would be commercial. Although 400 watts would
make a noticeable difference, most hams who are in the market for an
amplifier want at least 800w.
Anything above 400W is illegal in this part of the world.
What a refreshing
Thanks for the idea Ted. I thought about using PVC. I'll look into int
some more.
Todd
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Thank you for your suggestion, Sverre, I am planning doing that. I have
12 1N5821 diodes here and with try and match a pair on them tomorrow.
73
David G4DMP
In a recent message, Sverre Holm <[EMAIL PROTECTED]> writes
If you have many diodes available, then as a last resort you could try to
Hi
I want to buy a assembled K2/100 with the following:
K2, KPA100, KSB2,K160RX, KNB2, KDSP2.
Please reply direct, off list.
Franco I6QFZ
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Hi Don,
Thanks for your reply.. i have tested the difference between PD1+2 and
VOL1+2, there is no difference in the signals.
I have put them back on PD1 and 2 to get a clean audio output, the PC will
provide DSP features, and the last I want is a disturbed signal in my PC.
I have also found tha
hi Lenny,
w2bvh schrieb am 5 Feb 2006 um 10:30:
> If you're looking to get rid of it, I could use it with my K2 sn 1520).
>
> 73,
> Lenny W2BVH
thank you for the offer, but it is already sold to a ham living in Austria.
He was the first one who replied and its even the easiest way to ship it.
Just finished building the BL2 and I'm wondering what other Elecrafters have
used for an enclosure? I would appreciate any ideas or photos of what others
have come up with.
Thanks, WA7U
Todd
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> -Original Message-
> Thank you, Don, for your technical description as to what
> might be happening.
>
> I have polished my straight key silver contacts and replaced
> the diodes with 1N5821 Schottky diodes, but am still getting
> the problem occasionally.
>
David
If you have many d
>I think the main problem would be commercial. Although 400 watts would
>make a noticeable difference, most hams who are in the market for an
>amplifier want at least 800w.
Anything above 400W is illegal in this part of the world.
73!
BKA (TA2RX)
--
Bekir Kemal A
David,
You could leave the physical connections as they are now and simply change
the menu to INP Hand. If your current diodes are Shottky type, there will
be no further benefit to changing them - I only mentioned the 1N5711 as one
example type.
It has been noted that the diodes work well when u
Hi
I thought I had a similarly problem with my recent build K2 (5324) but it
was me, if your using the Tune Button to key the transmitter you will find
this happens just as you have written, the tune button bypasses the power
control circuits and the power level will jump all over the place , the
Thank you, Don, for your technical description as to what might be
happening.
I have polished my straight key silver contacts and replaced the diodes
with 1N5821 Schottky diodes, but am still getting the problem
occasionally.
It does look as though I shall have to fit a separate jack to the
Dean,
First I must ask - have you done anything between the keyup and the next
keydown?
For instance, if you change bands, the K2 must reset its power sensing
circuits to determine the new value of ALC that must be applied to maintain
the requested power output. This is normal.
OTOH, if you are
hello all,
sorry if this message appears twice, my first try was sent with an alias of my
email address and probably was rejected.
I am a new K2 Builder (# 5203) - working on the RF Board in his spare time.
I have ordered the K2/100 plus SSB, DSP, serial IO. Now I have read that
the serial IO i
Sjoerd,
If your fixed audio output is connected to the VOL1 and VOL2 signal lines
(as in my suggested connection points), then the KDSP2 is upstream of the
fixed audio output, and there should be no change in the loading of the
product detector due to the fixed audio output. OTOH, if your fixed a
David,
I would rather speculate that it is a uP timing situation coupled with
contact bounce at the key and the forward voltage drop of the diodes. If
one of the diodes is a bit slower than the other, the voltage seen at the uP
pins may actually look like one pin has gone to a low state before th
Mindful that I am neglecting my hand keying, my sending being spoilt by
the ease of using an iambic paddle, I have connected a straight key
across the paddle keying line using a pair of 1N4148 diodes as shown in
the K2 Manual. This works reasonably well, but occasionally when
pressing the str
I recently came up with a unique way to tame bugs with dots too fast.
I milled a 7/16" steel rod in a way that allows it to clear
the damper with one small weight attached to the end.The
entire assembly moves from the front to the back of the dot arm.
The bug I was trying to tame sent
Hello all,
I am using a W3FPR-like fixed audio out for my K2 for abt. 3 months now,
worked very well until now.
After installing my new KDSP2 the audio to the PC seems affected.
In the original setup the high frequency rolloff was abt. 2 dB from 400Hz to
2.6 KHz.
Now it is abt 6 dB over the same
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