led
> from a wide array of triggers, not just band selection.
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Darrell Bellerive
Amateur Radio Stations VA7TO and VE7CLA
Grand Forks, British Columbia, Canada
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You must be a subscriber to p
on a multiband antenna. The KRC2 is a nifty device to control
relays to do just that.
Yes, multiband antennas can be a challenge, but then again, any antenna is
still better than no antenna.
73,
Darrell VA7TO K2 #5093
--
Darrell Bellerive
Amateur Radio Stations VA7T
away 50%, 75% or even more of the transmitter's power in losses
> and be completely unable to detect it by evaluating how easy or hard it is
> to make on-air contacts.
Shhh... Don't tell those QRO stations that they are really running QRP. :-)
--
Darrell Bellerive
Amateur Radio
n you really have other problems that need to be
dealt with.
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Amateur Radio Stations VA7TO and VE7CLA
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tunes to a 1:1 SWR and contacts can
be made, so it must be working well. The reality could be quite different.
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Amateur Radio Stations VA7TO and VE7CLA
Grand Forks, British Columbia, Canada
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the rig in a vulnerable spot (while not wearing a wrist strap), then
> the resulting surge discharging that person's charge to ground through the
> rig's vulnerable circuitry would most certainly fry something!
--
Darrell Bellerive
Amateur Radio Stations
[mailto:[EMAIL PROTECTED] On Behalf Of Darrell Bellerive
> Sent: 24 November 2007 17:12
> To: elecraft@mailman.qth.net
> Subject: Re: WARNING! WARNING! WARNING! (was [Elecraft] ESD recommendation)
>
> What about touching the circuit board pads with my Weller soldering sta
700Hz filter
> > setting shows no obvious ripple anyway. It does however certainly not
> > look right on the waterfall on psk31!
--
Darrell Bellerive
Amateur Radio Stations VA7TO and VE7CLA
Grand Forks, British Columbia, Canada
___
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them if I can't get some from
Mouser.
73,
Darrell VA7TO K2#5093
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Amateur Radio Stations VA7TO and VE7CLA
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You must be a sub
h signals.
>
> To lower the LP cutoff, I soldered 0.1uF SMD caps across
> C25 and C26 on the control board. To my ears K2 now sounds better.
>
> 73, Matti
>
> ps. I use 2.4 kHz X-Tal filter
--
Darrell Bellerive
Amateur Radio Stati
Unfortunately this is becoming more and more of a common practice. Bells
and whistles are demanded by the marketing folks, low manufacturing
costs are demanded by the accountants, and a copy of what the most
successful competitors product is demanded by the executive. Engineering
and quality suffer
B modifications
have not been done.
Asking $700 US funds plus shipping or best offer. I prefer payment via
PayPal.
Please note that the radio will be shipping from Canada.
To keep reflector traffic down, please respond directly.
Darrell Bellerive
VE7CLA
Sold.
On Wed, 2004-07-14 at 17:28, Darrell Bellerive wrote:
> For Sale:
> Elecraft K2 Serial #1973 with:
>K2 Firmware ver 1.06F/1.02,
>KSB2 ver 1.04 SSB Module,
>K160RX 160 Metre $ RX Ant Module,
>KNB2 ver 1.02 Noise Blanker Module,
>KBT2 Battery,
>
Terry,
You should go from the speaker jack on the K2 to a line in jack on the
sound card. The headphone jack audio source rolls-off some of the highs
and will make it a little harder to set the filters up.
The speaker out is mono, so I would just use one channel. Some systems
will treat the the
features I don't need like SO2R and a
price tag that is too high for me. I hope that Elecraft is considering a
basic KPA400/KAT400 combination.
Could the fan in the KPA100 be eliminated with a different heat sink?
--
Darrell Bellerive
Amateur Radio Stations VA7TO and VE7CLA
Grand Forks, Br
the turn of a knob! I could get rid of my Titan II and be perfectly
> content.
>
> - Tom K2TA
>
> - Original Message -
> From: "Bob Nielsen" <[EMAIL PROTECTED]>
> > Unfortunately (IMHO) the 15 dB maximum gain limitation was retained
> > in the new
pm, Darrell Bellerive wrote:
> Yes, yes, yes
>
> From what I understand, the KPA800 has two 400 watt power modules combined
> to produce 800 watts. So, a KPA400 with just one of the power modules, a
> built-in lower power antenna tuner, no combiner, a smaller power supply,
&g
drift, etc.
If the KPA100 is mounted in a separate EC2 cabinet, would the need for a fan
be eliminated? What about if the KPA100 shares an EC2 with a KAT100? Or could
a larger heat sink be substituted?
--
Darrell Bellerive
Amateur Radio Stations VA7TO and VE7CLA
Grand Forks, British Columbia,
eurs are simply unaware of the losses that occur in a multiband
antenna system.
However, any antenna is still better than no antenna.
--
Darrell Bellerive
Amateur Radio Stations VA7TO and VE7CLA
Grand Forks, British Columbia, Canada
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ltipin connector. One could then build their
own front panel with the knobs, switches, meters that they desire, and
connect them to the large multipin connector on this alternate K2 front
panel.
>
>
> Is the K2 worthy of such elaboration?
Even with it's few problems, it is hard t
is 150 watts. A convenient ground lug is located on the balun output side.
How can a balun be switchable from 1:1 or 4:1? Surely the characteristic
impedance of the windings will be missmatched at one of the settings.
--
Darrell Bellerive
Amateur Radio Stations VA7TO and VE7CLA
Grand Forks, Brit
Post to: Elecraft@mailman.qth.net
> You must be a subscriber to post to the list.
> Subscriber Info (Addr. Change, sub, unsub etc.):
> http://mailman.qth.net/mailman/listinfo/elecraft
>
> Help: http://mailman.qth.net/subscribers.htm
> Elecraft web page:
crease the gain beyond 15 dB?
Will the power output be restricted on 30 meters?
Darrell VA7TO K2#5093
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Amateur Radio Stations VA7TO and VE7CLA
Grand Forks, British Columbia, Canada
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ace, has taken a lot of time and
> effort. The good news is that we are healthy, profitable and in good
> shape to continue to grow and supply you with great new products!
--
Darrell Bellerive
Amateur Radio Stations VA7TO and VE7CLA
Grand Fo
, 2007 11:55 am, Brian Broggie wrote:
> It is *Finally* here; the KRC2 Configuration Band Mapping program.
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Darrell Bellerive
Amateur Radio Stations VA7TO and VE7CLA
Grand Forks, British Columbia, Canada
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> soon)
>
> 73,
> Don W3FPR
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Grand Forks, British Columbia, Canada
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ed.
Installing Dave's mod will be my next K2 adventure.
Darrell VA7TO K2 #5093
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You mus
On March 4, 2007 12:25 pm, Darrell Bellerive wrote:
> I suspect that U2 is playing a role in the
> different minimum gain voltages seen here as compared to the directly
> applied voltage on the MC1350 via R4.
Just figured out why the voltages were so different. I was measuring at pin
impedance at the
input to the 2nd crystal filter and affect the filter shape?
Darrell VA7TO K2#5093
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On March 5, 2007 08:07 am, Darrell Bellerive wrote:
> Regardless of where I set the AGC threshold voltage via R1, the K2 always
> has more gain with the AGC off than with the AGC on. The lower the AGC
> threshold voltage the less the difference between AGC off and on.
I removed C181 c
is modification please post your results.
73,
Darrell VA7TO K2#5093
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Amateur Radio Stations VA7TO and VE7CLA
Grand Forks, British Columbia, Canada
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mods is just so much fun.
Darrell
On March 7, 2007 11:48 am, wayne burdick wrote:
> Darrell Bellerive wrote:
> > For those of you following the saga of my AGC obsession, here's the
> > latest.
> >
> > I installed Dave's mod
>
> Darrel,
>
> Thank
he right modifications in it to sound well.
>
> Maybe this will be helpful information for others.
>
> 73, Fred KT5X
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Darrell Bellerive
Amateur Radio Stations VA7TO and VE7CLA
Grand Forks, British Columbia, Canada
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any longer.
I'm glad the MOD is working out for you.
Regards
Dave
- Original Message -
From: "Darrell Bellerive" <[EMAIL PROTECTED]>
To: "Dave White" <[EMAIL PROTECTED]>
Sent: Wednesday, March 07, 2007 12:33 PM
Subject: AGC Mod S-Meter
> Dave,
&g
lytic capacitors or does it have a role to play with the audio?
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Darrell Bellerive
Amateur Radio Stations VA7TO and VE7CLA
Grand Forks, British Columbia, Canada
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You must be a subscriber to po
e the intensity of the sidetone and it's harmonics. With testing one can
optimize their K2 to their specific liking, but it comes at a price. I
sacrificed the ability to change the sidetone pitch for a better sounding
sidetone and less T/R thump.
Sure is fun tinkering with the K2 though!
-
AGC line would have to be disconnected.
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Amateur Radio Stations VA7TO and VE7CLA
Grand Forks, British Columbia, Canada
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On March 11, 2007 04:16 pm, Sandy W5TVW wrote:
> Circuitrywise, an "AGC/AVC free" S-meter is an oxymoron! Can't have one
> without the other.
Why not?
--
Darrell Bellerive
Amateur Radio Stations VA7TO and VE7CLA
Grand Forks, Bri
Is there something wrong with the reflector archive at
http://www.ac6rm.net/mailarchive/html/elecraft-list/
No matter what I search for it seems to only go back to March 14. A search
of K2 produces on 43 results.
Is there an alternate archive?
Darrell
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Amateur Radio
s Mepis, and Ubuntu.
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Amateur Radio Stations VA7TO and VE7CLA
Grand Forks, British Columbia, Canada
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ng clunks."
On March 24, 2007 03:25 am, Dave-Boat Guy wrote:
> A bare-bones K2 is a fine radio, although there are
> still a couple of unresolved issues, like the tuning
> clunks you hear on crowded bands, due to the
> synthesizer. I'm still puzzled why it hasn't been
&g
l carrier levels of the BC stations above 7100
> kHz can approach -10dbm / -5dbm with an antenna looking East, and there
> are many of them. It is not uncommon for my K2's LO system to lock onto
> one of these carriers, and only let go after the receiver has been
> retuned about 1 k
rigs are good for mobile or portable operation, but for home use a
nice big front panel is such a pleasure to use. Menus are simply a way to
reduce the size, number of controls, and cost of a rig.
--
Darrell Bellerive
Amateur Radio Stations VA7TO and VE7CLA
Grand For
ne else's paddle.
With a bug, I can see where one would need to use the force that the thumb
can more easily deliver to get that pendulum swinging, but that kind of
force is not needed for keyer paddles. I suspect that is why the dits where
on the thumb side of the bug for right hand user
quiet enough
is one with the motor and blades removed and destroyed.
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Amateur Radio Stations VA7TO and VE7CLA
Grand Forks, British Columbia, Canada
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rned the code
with a 1000 Hz tone or perhaps too many years of 1004 Hz test tones at the
telco. Too bad the K2 will only go up to 800 Hz. Perhaps Eric and Wayne, you
might consider adding this to the wish list of feature enhancements?
--
Darrell Bellerive
Amateur Radio Stations VA7TO and
tested, since some charge
> controller generate significant noise.
>
> Any input on such a product would be appreciated. If there were
> significant interest, we'd try to have it ready early next year.
>
> 73,
> Wayne
> N6KR
>
--
Darrell Bellerive
Amateu
Are the relays in the KAT100 the latching type or do they draw current as long
as they are in the operated state?
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Amateur Radio Stations VA7TO and VE7CLA
Grand Forks, British Columbia, Canada
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Could someone please point me to the KRC2 Configuration Utility information on
the Elecraft website? I been looking for a while but just can't find it.
--
Darrell Bellerive
Amateur Radio Stations VA7TO and VE7CLA
Grand Forks, British Columbia, C
o, do the low pass filters in the KPA100 affect the sensitivity of the
general coverage receive ranges?
73,
Darrell VA7TO K2 # 5093
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Darrell Bellerive
Amateur Radio Stations VA7TO and VE7CLA
Grand Forks, British Columbia, Canada
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No replies to this yet. Does no one have any info or should I just expect to
see 5.0 to 5.5 MHz as the specs list?
On January 16, 2006 10:52 am, Darrell Bellerive wrote:
> Does the addition of the K60XV increase or improve the general coverage
> receive capabilities of the K2?
>
> Wh
other than 60m is not valid.
> Somebody else may be able to comment better on that. I just proved that
> to myself by scanning the 10m band quickly and found that the radio does
> Rx over a 2 MHz range on 10m, so I guess the range does vary from band
> to band.
--
Darrell Bellerive
what is wrong.
> Is there an info-sheet available, what has to be seen with a
> dual-scope-oszilloscope at which point and at what siganl level?
>
> 73
> Karsten
> DK4AS
> _______
--
Darrell Bellerive
Amateur Radio Stations VA7TO
ching KAT400, BL4,...
Darrell VA7TO K2 #5093
On February 1, 2006 08:48 am, wayne burdick wrote:
> The K2 by itself cannot legally drive an amplifier to full power; the
> rule states that at least 50 watts of drive must be required.
--
Darrell Bellerive
Amateur Radio Stations VA7TO and V
Yes, but with all those features and SO2R, and the capability of 1 or 2 KW,
the price will be high. I'd love to see a 400 watt or so integrated amp for
the basic K2 with no frills. A KPA400 option rather than a KPA100. A separate
box would be okay, like some have done with the KPA100 in an EC2 c
devices and it would be okay for Elecraft to build an
amplifier for export only. I have since been educated. Therefore a KPA400
option looks like the most practical option.
73,
Darrell VA7TO K2 #5093O
on February 4, 2006 08:33 am, Darrell Bellerive wrote:
> How about a version for all of
Let's see:
K2 + KPA400 vs. K2 + KPA100 + 800 watt amplifier.
What would be the $/watt?
You're right 800 watts is a very nice power level, but there have been a few
transceivers that have featured 200 to 400 watts output like the Yaesu
FTdx-400 or some versions of the FT-1000. Niche market to b
# 5093
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Amateur Radio Stations VA7TO and VE7CLA
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ell me that the MC43 is to be preferred.
> Also, it has a more flexible curly cable. The only thing against the
> MC43 is that it does not have an Elecraft label on the back, but I can
> live with that.
>
> 73 de David G4DMP
--
Darrell Bellerive
Amateur Radio Stations VA7TO a
the K2 to exactly 10,000.000 kHz and at the
next step up of the vfo be at 10,000.010 kHz. Seems a lot like an ARRL
frequency measuring contest. :-)
What tricks have others on the list found to tune WWV to within 1 Hz or less
without expensive professionally calibrated test equipment?
73,
0 MHz, or at 54.0
MHz. 10 Hz, 100 Hz, no way. 10 Khz more likely.
Darrell
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You must be a s
eters with full break-in silent diode T/R? Could this be adapted to the
XV-50?
Sure would be nice to have full break-in silent diode T/R in the XV-50.
--
Darrell Bellerive
Amateur Radio Stations VA7TO and VE7CLA
Grand Forks, British Columbia, Canada
_
tupid mistake)
Elecraft K2B (Had to correct above mistake)
Darrell
VA7TO
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kHz steps) finds a weak
carrier at 5.070 that goes on and off with the power on the K2.
Before I email Elecraft support, what else should I check?
Darrell
VA7TO
--
Darrell Bellerive
Amateur Radio Stations VA7TO and VE7CLA
Grand Forks, British Columbia, Canada
; >
> > You might try 10 pF at C8 or 680 pF at C7
>
> I installed a 10pf cap at C8 and it worked. I'm sure someone else did the
> same thing with success.
>
> Good luck.
>
> 73, Ken K3IU
>
> -Original Message-
> From: [EMAIL PROTECTED]
>
ince a change of less than 1 dB is not noticeable to the human ear
then perhaps this might be a good point for the AGC threshold? Comments?
Is what I am seeing normal behavior in a K2? Everything seems to work just
fine.
Darrell VA7TO K2#5093
--
Darrell Bellerive
Amateur Radio Stations VA7
will find
many used HEXKEYs, Begalis, or other high end paddles for sale. I would also
be hesitant about buying such an expensive key on eBay for fear of getting
one that has been abused.
I'd like to hear your opinions and thoughts on my paddle selection,
Darrell
--
Darrell Bellerive
Am
t; those with robust habits will be better accommodated. But the HEX is
> perfectly capable of being used by a very, very light touch. So I
> guess I find their statement misleading.
--
Darrell Bellerive
Amateur Radio Stations VA7TO and VE7CLA
Grand Forks, British Columbia, Canada
reply from someone who will
actually build the generator and use it. I mail it anywhere in the world via
regular surface mail.
Darrell
K2 #5093
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Darrell Bellerive
Amateur Radio Stations VA7TO and VE7CLA
Grand Forks, British Columbia, Canada
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wrote:
> I'll follow this thread with interest, as I too am considering a scope
> purchase.
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Darrell Bellerive
Amateur Radio Stations VA7TO and VE7CLA
Grand Forks, British Columbia, Canada
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design (like elecraft), so maybe someone can
> improve them :-)
>
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You must be a su
tuner, so the
measurements don't have to be exact. The coax will compensate for a slight
offset.
Thanks in advance!
Darrell VA7TO K2#5093
--
Darrell Bellerive
Amateur Radio Stations VA7TO and VE7CLA
Grand Forks, British Columbia, C
Would anyone know the manufacturer and model number of the relays used in the
KAT100-1?
I would like to find the maximum contact voltage rating and contact spacing.
Darrell VA7TO K2#5093
--
Darrell Bellerive
Amateur Radio Stations VA7TO and VE7CLA
Grand Forks, British Columbia, Canada
spacing of about 0.25 mm.
Wow that seems very small. Have I figured this wrong?
Darrell
On July 6, 2006 03:09 pm, [EMAIL PROTECTED] wrote:
> KLT1C12DC12 made by Hasco
>
> Michael
> N2ZDB
> _______
--
Darrell Bellerive
Amateur Radio Stations V
next. Looks like you went for the mirror
> effect - was it worth the effort?
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Amateur Radio Stations VA7TO and VE7CLA
Grand Forks, British Columbia, Canada
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Resending this as I have not received any replies yet. Could anyone possibly
help me out?
Thanks!
Darrell
-- Forwarded Message --
Subject: KAT100-1 Measurements?
Date: July 6, 2006 03:52 pm
From: Darrell Bellerive <[EMAIL PROTECTED]>
To: elecraft@mailman.qth.net
Thanks very much to all who have replied!!!
Here is the average of the measurements for the archive:
On July 23, 2006 03:48 pm, Darrell Bellerive wrote:
>
> Would someone be so kind as to take some measurements of the KAT100-1
> Antenna Tuner:
>
> The horizontal distance betwee
than narrow. The same crystals
> are used both in the main (stock) filter and the KSB2. All you'd need
> to do is use smaller varactor diodes, preferably a matched set. You
> might be able to get a 1200-2400 Hz passband range with acceptably low
> ripple.
--
Darrell Bellerive
Amat
On August 11, 2006 06:04 pm, Ron D'Eau Claire wrote:
>And the ATU suppresses harmonics and other spurs even more.
> Ron AC7AC
Does the Elecraft KAT100 Tuner's L network work as a high pass, low pass, or
band pass filter?
Darrell VA7TO
--
Darrell Bellerive
Amateur Radio St
--
Darrell Bellerive
Amateur Radio Stations VA7TO and VE7CLA
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http
much again. Help! My brain hurts. :-)
Darrell VA7TO K2#5093
On August 15, 2006 03:05 pm, Mike S wrote:
> At 03:03 PM 8/15/2006, Darrell Bellerive wrote...
>
> >As an alternative is there a direct replacement logarithmic pot that could
> > be substituted for the linear pot sup
er if there is a harsh note built into some
> of the modern synth rigs. SSB sounds OK.
>
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Amateur Radio Stations VA7TO and VE7CLA
Grand Forks, British Columbia, Canada
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> hear it. After all, this isn't some cheaply made Asian rig.
>
> Clearly I've gone past the realm of "reasonable" into the realm of
> "splitting hairs"
>
--
Darrell Bellerive
Amateur Radio Stations VA7TO and VE7CLA
Grand Forks, British Columbia, Canada
_
the power supply output voltage times 100?
Darrell VA7TO K2#5093
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Darrell VA7TO [EMAIL PROTECTED]
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:56 am, Solosko, Robert B (Bob) wrote:
> Question for everyone: If there would be a small hardware front panel
> extension with say 16 or 20 pushbuttons and LEDs (either associated with
> the buttons or for independent functions), what functions would you most
> want?
>
--
Da
at this might be the cause of the "High Current" reading
blips.
Darrell VA7TO K2#5093
On September 5, 2006 05:16 pm, Stephen W. Kercel wrote:
> A very short instant after switching the VFO mode from split to
> normal, I got a "High Current" reading. It only lasted for
Mini-Module Kit.
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Amateur Radio Stations VA7TO and VE7CLA
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undamental keying waveform for the code to sound sufficiently crisp."
What is meant by "the fundamental keying waveform"?
How do we take "the need to hear one or more harmonics of the fundamental
keying waveform" into account when setting up the IF and audio filters?
73,
Da
s offset so that the carrier beatnote is
at either the high or low end of the bandpass, yet still within the flat part
of the bandwidth, what will be the effect on the way we hear the CW? Will we
hear a harder note for the same bandwidth?
Darrell VA7TO K2#5093
On September 19, 2006 03:07 p
And what about the effects of compression?
Wouldn't the AGC tend to reduce the dynamic range between the noise floor and
the CW elements? Would an audio expander help to make the CW stand out from
the noise better and therefore easier to hear?
73,
Darrell VA7TO K2 #5093
--
Da
/K2_Noise_Blanker_Electric_fence.txt
Darrell VA7TO K2#5093
On September 25, 2006 11:52 am, Arie Kleingeld PA3A wrote:
> I tried to test the noisblanker (have an electric fence nearby). It does
> not seem to blank noise.
--
Darrell Bellerive
Amateur Radio Stations VA7TO and VE7CLA
Grand Forks, British Columbia,
e amount of hours you and Eric put in.
Thanks very much for all the hard work and wonderful products.
73,
Darrell VA7TO K2#5093
--
Darrell Bellerive
Amateur Radio Stations VA7TO and VE7CLA
Grand Forks, British Columbia, Canada
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.
Please email me your comments. Thanks!
--
Darrell Bellerive
Amateur Radio Stations VA7TO and VE7CLA
Grand Forks, British Columbia, Canada
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wrong.
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Darrell Bellerive
Amateur Radio Stations: VA7TO, VE7CLA
Grand Forks, British Columbia, Canada
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ice and jobs.
Thank you very much Eric and Wayne. While you may never make the Forbes top
500 list, I would consider Elecraft to be one of a handful of truly great
companies. Elecraft is a winner in my books!
Darrell
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Darrell Bellerive
Amateur Radio Stations: VA7TO, VE7CLA
Grand F
l.net/ve3mcf/elecraft_reflect/KNB2_Mods.txt
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Darrell Bellerive
Amateur Radio Stations: VA7TO, VE7CLA
Grand Forks, British Columbia, Canada
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to
> > fully drive it.
> >
> > Tom N0SS
> >
> > At 02:58 PM 5/22/05, [EMAIL PROTECTED] wrote:
> >> Was it a K2?.or a 100 watt K2/100?
> >>
> >> Rich K2CPE
> >> K2 #1102
> >>
> >> >It was dr
t impact the battery much. I would
also like them switched on and off with the K2 front panel power switch. Is
there a convenient place in a K2 to pull off the switched 12 volts and feed
it to a rear panel connector?
TIA and 73,
Darrell
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Darrell Bellerive
Amateur Radio Stations: VA7TO, VE7C
> is irrelevant. Most impulse noise on the air in my area slips right
> through. Compared to the FT1000 and FT736R it is a poor third. Time to
> redesign it. Make it plug compatible and you'll sell many. My order for
> KNB2-2 stands. Joe K4AA
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Darrell Bellerive
Amateur Radi
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