This is very similar to the "car quits on the road" diagnostic technique. The
first step is to pull off the road. Step 2 is to open the hood and stare at the
engine. Look everywhere. Look at it very carefully. Is it still there? If the
answer is yes, step 3 is to call AAA.
:)
>>
>> You migh
The 1-A is one of my five all-time best radios. Small, simple, a game-changer,
got the job done. It's a delight to use.
Drake didn't leave the Ham radio market because of AM, or focus on AM, or lack
of focus on AM. They probably left because in the end they couldn't price
compete with relative
t; For us old-timers here, if R.L. Drake focused on AM when they designed and
> released the Drake 1A (targeted for the SSB mode), they would have gone the
> way of Compaq, Commodore, Digital Equipment and others.
>
> Jim
> W6AIM
>
>
>
>
>
> -Origi
gt;
>
>
> -Original Message-
> From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Grant
> Youngman
> Sent: Monday, March 23, 2015 12:46 PM
> To: Elecraft Reflector
> Subject: [Elecraft] K3 AM Performance
>
> Turns out (as usual) I'm late t
Turns out (as usual) I'm late to the party .. on AM transmit performance? which
is pretty dismal compared to quite a few competitive SDR and POTS (plain old)
radios and what COULD be done, especially given a 13 KHz transmit filter.
http://www.w1vd.com/ElecraftK3.html
Plus it would be good to h
e same as on the
> high frequency side.
> Even though the 13kHz filter theoretically has zero offset, you may find a
> better balance for the bass response by experimenting a bit with the offset
> value for that filter.
>
> 73,
> Don W3FPR
>
>> On 3/22/2015 4:50 P
That could be. But the DSP bandwidth (10 kHz or 5 kHz in sync mode) is sitting
in the middle of a 13 kHz filter. There's a lot of room for slop before the
filter edges should come into play ...
Grant NQ5T
Sent from my iPhone
> On Mar 22, 2015, at 3:35 PM, Guy Olinger K2AV wrote:
>
> The app
One of the things I’ve observed in sync AM receive, is the difference in AF
response between LSB and USB (selected by the shift control).
The LSB side has significantly better bass response than the USB side.
Likewise, USB has more highs and very little low end. It’s much like the
response th
I’m running the latest version of K3 Utility for the Mac. I was able to change
the AM transmit filter from 6 Khz to 13 Khz using the utility.
However, the utility would NOT allow me to set it back to 6 KHz. It would not
recognize the 6 KHz radio button selected. I had to use the Config menu
don’t or make anyone’s head
explode. But it sure would be a good thing if Elecraft could see a way clear
to improve the transmit fidelity in AM.
Grant NQ5T
> On Mar 19, 2015, at 9:24 PM, GRANT YOUNGMAN wrote:
>
> If the FM filter is assigned to AM transmit, is there any impro
If the FM filter is assigned to AM transmit, is there any improvement in
transmit audio bandwidth beyond 3 KHz,or does it remain DSP limited to this
relatively restricted range?
Grant NQ5T
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Has anyone used the K3’s TX INH line to implement a Ten-Tec style keying loop
for QSK? If so, were there any issues?
Grant NQ5T
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I’m a luddite. I have two Windows machines (mostly turned OFF), a MacBook, two
MacBook Pros, and a Mac Pro.
None of them are in the radio room, although I do take a MacBook Pro in there
once in a while for digital stuff. Too many RADIOS. No room for permanent
computer thingies.
Grant NQ5T
This has really gotten so far beyond anything rational.
Should I upgrade? Shouldn’t I upgrade? Will it matter to me since I only
operate on empty bands? What is Elecraft’s business model? What is the gross
margin on the new boards? What is air?
Good grief guys. Upgrade. Don’t upgrade.
Huh?
Sent from my iPhone
> On Feb 26, 2015, at 1:38 PM, Dick Dickinson wrote:
>
> Sure, merely understanding the words is fine when dealing with brief
> exchanges of call signs and signal reports. And pumped up, penetrating
> audio can help pump up your adrenalin if one finds excitement in spo
This raises an interesting point. In other venues (casual discussion, fests,
on air discussions, etc), I’ve heard several times about the reputation of
“bad receive audio” on the K3… and suspect since most of the kibitzers don’t
actually own a K3, that it comes from early published sources — o
I find it a bit humorous that the subject invariably arising for a $200 (or
$1000 or $10,000+) item ends up being about chump change on shipping costs.
We’ll drop a bundle on something and then spend hours quibbling about a few
bucks on shipping.
I’m not a terribly sophisticated user of my K3
If you use Sync AM mode, the K3 is single (selectable) sideband on AM. The
bandwidth you see displayed is NOT the DSB bandwidth, it is the bandwidth of
the ONE sideband that is being received. So if you open the bandwidth display
to say 4 kHz, in sync mode, you are receiving one sideband, with
At one time I had a very early March key, before he started putting serial
numbers on them and refined the design somewhat. Even at that, it was very
nice key. I’ve been selling off my key collection the last few years. I’ve
had Jones, G4ZPY (VHS), N2DAN, other Begalis, and a variety of other
>
>
> And then there would have to
> be a KAT1500 to go with it.
Have we completely lost the ability to do anything if a mouse click or
one-button push won’t do it for us???
:-)
Grant NQ5T
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>
> A straight key ... any quality straight key. Don't move to
> paddles or a bug until you learn proper timing/spacing.
>
I have to agree. Straight key first, without question. VIbroplex, J-38, yada
yada, just about anything that is a decent key. Many to choose from. Learn
the code and
> but I still don't like appreciate it: Big hog of bandwidth, IMO. And it's so
> easily recognizable on my P3 or PX3.
Of course, ESSB is not appropriate to contest environments or crowded bands in
general. (Although contesting in the aggregate is a far worse band hog than 1
or 2 ESSB QSOs).
On Sep 5, 2014, at 8:43 PM, Luis V. Romero wrote:
>
> This is sort of like those beautifully machined knob sets... $250 for a VFO
> knob that probably cost less than $20 to make!
>
> But then, yes, Im guilty of accessorizing as well... I had my callsign
> engraved on my K3's display window a
>
> Design without considering how a product will be used rarely produces a
> useful product. From where I sit, Wayne and Eric have been quite good at
> studying the needs of their customer base, engaging the BS filter between
> their ears, and incorporating as many features as possible
Cert
In a lot of ways it’s a no-win situation.
Data guys want mo’ data stuff and changes to existing features. Moon bounce
weak signal guys want something else. Something doesn’t work right for one
mode used by a few. CW guys will want something else. A few don’t like the
size of the cabinet. A
I think the point is to have VOX inactive until PTT is keyed. In this mode,
PTT wouldn’t key the radio, it would simply activate VOX. If PTT was not
keyed, the radio would not respond to audio and key the transmitter, even with
VOX turned on.
Another way to do this of course, would be a switc
It is possible to adjust the CENTER frequency. I’m unaware of any way to
change the notch bandwidth.
Grant NQ5T
On Aug 1, 2014, at 12:29 AM, Guy Olinger K2AV wrote:
> Page 25 in "K3 Owner's man D10.pdf"
>
> Available in the download section of the Elecraft web page.
>
>
> On Fri, Aug 1, 2
The Icom’s manual notch is inside the AGC loop, but not the auto notch.
The early (Version 1) Orion firmware had the auto notch inside the AGC loop,
and it was one of the many great features of that radio. In AM mode, you could
punch in audo-notch and it would remove the carrier to let just th
I suspect that’s a reasonably poor assumption based only on the fact that it
isn’t in the hype thread.
But even it it turns out to be good, the P3 is worth every nickel …
Grant NQ5T
On Jun 20, 2014, at 8:15 PM, Gary Gregory wrote:
> Steve,
>
> The only negative is the lack of Tx monitoring
That’s like claiming those 4 packs of Camel non-filters and 2 5ths of Jack a
day haven’t caused any problems … yet … ;-)
On Jun 4, 2014, at 9:48 AM, Phil Hystad wrote:
> I don't use any antivirus software and haven't in over 10 years. Never had a
> virus or a malware problem of any sort duri
Enough of these pointless operating systems. You should be running figFORTH on
PHIMON like I do on my 1976 Digital Group Z-80 (32MB, dual PHI-decks) :) :)
Grant NQ5T
On May 28, 2014, at 2:05 PM, wb4...@knology.net wrote:
> I still have a working IMSAI 8800 with three SA-800 drives and an H1
Is coffee, in this context, considered a "condiment"?
Sent from my iPhone
>>
>> - empirically investigate the effect of condiments on option modules
>>
>>
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The AL-1200 needs at least 100 watts input to reach a full 1500 watts out.
It’s an excellent, virtually indestructable amp, but a 100 watt output exciter
is marginal for it.
Grant NQ5T
On May 8, 2014, at 4:12 PM, Phil Wheeler wrote:
> Assuming the list below is the K3 barefoot into a dummy
Check the SWR into the amp. I have a couple of bands where the input tuning
circuits have drifted a bit on my AL-1200. I need to get in there and retune
my amp, but the simple solution in the meantime is to use the auto tuner in the
K3 to take care of it.
Grant NQ5T
On May 8, 2014, at 5:
You can find some ESSB around 7230 daytimes, and 14.178 give or take. I
haven’t heard the 20M guys for a while, but I haven't been there listening
either.
Some of the guys on 40 do exhibit the false carrier artifact that Joe referred
to. But the band isn’t crowded during the day (or hasn’t be
?
The infantile fascination with SSB restricted to 300-3000 (or less) Hz is
nothing more than another childish, restricted bandwidth temper tantrum from
those who don’t know better or don’t care.
This never ending bandwidth argument is pointless. There’s a time and place
for both.
I’d worr
I’m an organist. Years ago I played an instrument with a substantial
separation from the pipes to the console in a very reverberant space — so much
so that you had to just “play the notes” and hope for the best. If you tried
to listen to the delayed sounds of the pipes and play at the same tim
On Apr 19, 2014, at 8:10 PM, lane zeitler via Elecraft
wrote:
> When I use the ssb monitor is sounds like I am at the back of a cavestill
> going via the settings. I may try the KX3 book by KE7X to see if that helps.
>
> Lane
>
>
Did you mean K3?
The standard monitor setting has notic
Many, if not most, headsets found in the typical hamshack have significant
audio leakage around the ear cups, and if they’re open back it’s even worse.
If you’re wearing headphones with the speaker turned off, you can get still get
audio feedback while MON is turned on, and of course, it gets w
Some headsets also have enough audio leakage to cause problems.
It's generally better to use monitor to check things, and then turn it off.
Grant NQ5T
Sent from my iPhone
> On Apr 19, 2014, at 3:06 PM, Vic Rosenthal K2VCO wrote:
>
> Make sure that you are using headphones ONLY (the speaker
Part of the problem, I think, is that people have simply forgotten how to
monitor their own signal, or never bothered to learn how. It doesn’t matter if
you’re using the latest DSP wizbang SSB radio or a Central Electronics 10A to
transmit. Listening to yourself on an IF level “audio” monitor,
Nice!!
Grant NQ5T
On Apr 4, 2014, at 4:59 PM, Dauer, Edward wrote:
>
>
> PX3 photo can be found here:
> http://www.elecraft.com/manual/PX3%20Data%20Sheet%20rev%20B1a.pdf
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I have to admit, I find most of this discussion a bit odd.
Why, is the K3 less “fun” today than it was two years ago? Why do you expect
Elecraft to deliver more radio than you purchased? If I buy an SL245 (that’s a
car, not a radio!), I don’t then 3 years later grouse about the fact that it
The Ten-tec Orion has a really good implementation of binaural CW. With
headphones on, you can literally “see” the position of a particular CW signal
from left to right. I always found it amazingly effective and useful. I no
longer own the Orions or Orion II, but I do miss that feature.
I’d
The Sherwood list ranking isn’t about how well radios “hear” in general. Under
the right conditions, most of the radios on the last (and a whole lot of radios
that aren’t) can hear everything our most beloved radio (whatever that is)
hears. The list is ranked in order of decreasing narrow spac
I kind of hope that Eric comes in and kills this thread.
I have NEVER had the power poles “fall out” of the back of my K3. That said, I
don’t pick up my radio and try to throw it across the room, I don’t have my
cables arranged where I can easily get them tangled in my feet and pull them
loose
Is there a problem with the tuner? Have you contacted LDG?
Grant NQ5T
Sent from my iPhone
> On Oct 6, 2013, at 4:01 PM, "Julie Royster" wrote:
>
> Smart folks, we have been using our KX3 fine with an LDG auto-tuner. Today,
> mysteriously, it fails to tune only the 20-meter band. We checked
What about it?
Sent from my iPhone
> On Oct 6, 2013, at 2:28 PM, mikerodgerske5...@yahoo.com wrote:
>
> Yes, but what about IMD?
>
> 73
> Mike R
>
> Georgia Mules and Country boys are fading fast away
>- The Osborne Brothers
>
>> On Oct 6, 2013, at 12:38 PM, Wayne Burdick wrote:
>>
Your radio is clearly broken and probably beyond repair. I'm so sorry. Send it
to me. I can't pay you much for it, but I'll struggle to use it as is
:)
>
>> I have experimented with meter setting this morning after reading something
>> about it on the list.
>> If I tap the keyer/mic button it
> One salient point is that my K3's S-meter does NOT show linear/accurate
> readings above about S9 +25.
Honest to goodness, people. Get a grip ... :/
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Hel
Voice recognition is just so "yesterday".
Think of the radio as simple set of extended senses and peripheral extensions
controlled by the autonomic nervous system ...
Grant NQ5T
Sent from my iPhone
On Aug 19, 2013, at 4:15 PM, Don Putnick wrote:
> I'm sure Ron AC7AC's ideas were somewhat to
Typically, that turns out to be an OS and/or dongle driver issue. Unplug and
replug your connectors and make sure they are secure. Try rebooting whatever
computer you're using, and make sure the virtual port shows up in your devices.
It's also worth making sure you have the latest driver vers
Maybe I'm just deaf to the hiss everyone complains about, but I have to say my
impression of K3 receive audio is considerably different. I do have the
modified board, etc. And I haven't used the internal speaker since the first
day I finished the radio.
I do use a pair of RCA 40-5035 speakers
It could certainly be some anomaly with the radio, but here (Dallas TX) both 20
and 17 have been VERY (and unusually) quiet in general for the last few days.
More normally noisy today. Receiver independent ….
Grant NQ5T
On Jul 9, 2013, at 10:24 AM, Matt Zilmer wrote:
> You didn't say which
What mode are you in? Go to SSB and try it again.
Grant NQ5T
>
> Somewhere in the recent past, I have lost ability to TAP "Shift" or
> "Width" to get to be able to contorl Filter's Hi-Cut/ Low-Cut .
>
>
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Elecraft mailing list
Ho
Looks like a great app. I do wish software developers would at least consider
using a cross-platform dev environment and at least contemplate the fact that
Windows is not the only commonly used operating system environment that appears
in the ham shack. Thankfully, Elecraft sees the light :)
It's kind of buried on the web page. $145.00
Grant/NQ5T
On Jun 14, 2013, at 2:06 PM, Josh Fiden wrote:
> I couldn't find the price?
>
> Thanks & 73,
> Josh W6XU
>
> On 6/14/2013 11:55 AM, Gary W. Hvizdak wrote:
>> 700 Hz is just about ideal for S&P contesting, and there's still plenty of
>>
I remember when I ordered my SB-102. I was stationed at Sub Base Pearl Harbor.
There was no tracking in those days --- but I could see packages in the base
Post Office ready for delivery through a window. Every day --- I'd stop by and
look ... hoping I'd see that big Heathkit box.
Wish I stil
I wouldn't assume the call sign has anything to do with the scam. I got hit by
a WTB I had posted -- got an offer of one. Almost had the deal closed when I
found out the seller wanted a postal money order sent to his "nurse" at another
address because of "health issues".
Got a valid phone numb
Yes.
There is no direct way to mute the K3. The workaround is to place the K3
transmitter in TEST. Use contacts on the T/R relay to close the PTT line,
which will mute the K3 receiver. It will actually be in transmit, but won't
since it's in TEST.
Of course, you also need to provide antenn
> dinosaurs. A Disk Operating system for a medical company based on use of a
> parallel port to did a single bit to transfer data? AEEEIII)
>
> - Original Message - From: "Grant Youngman"
> To: "elecraft@mailman.qth.net List"
> Sent: Tuesday, M
if we're going back that far, is anyone out there still running CP/M or Phimon,
or using switches to toggle in machine code one byte at a time? Or worrying
about the behavior of thunks in Algol and side effects of call by name, or
perhaps whether all of the filaments in the tubes in the 64-bit
As described in the release note for this update, perhaps the difference in the
two hmcu files is that one is for the "b" revision of the display controller ...
Grant/NQ5T
On May 5, 2013, at 10:20 AM, Nate Bargmann wrote:
> Checking on the available K3 firmware this morning, I saw that a Beta
Is there a straightforward way to mute the receiver in the K3 from an external
"mute" line?
I want to use the K3 receivers with some vintage transmitters, and am looking
for the best way to accomplish RX muting. Not that an R-390 with a Sherwood
sync detector isn't a good receiver, but summ
I wish it were possible to leave the bandwidth wars somewhere else. :(
You don't want to run ESSB or AM, then don't. On an uncrowded band there's no
foul in running AM or ESSB, or any other legal mode.
The incessant lectures on bandwidth aren't necessary or fruitful.
Grant/NQ5T
Sent from my
>>
>
> While Apple has a good reputation for reliable hardware, their
> software policies make that long term reliability useless. Apple
> simply updates the operating system so often - and requires that
> all users purchase each incremental update.
Partly true, but with a major caveat. Point
I don't understand something. Every time on this list someone asks about a bit
of fidelity in their audio, the naysayers jump in with all the usual tired
counter arguments, usually punctuated by the infamous WWCD (what would Collins
do).
Why not just give it a bit of a break for a change. Huh
On Apr 23, 2012, at 2:31 PM, David Christ wrote:
> Once in place no Association is willing to
> change them for fear of reducing values. Since they are so prevalent
> in new developments and have been for many years it has the effect of
> red lining for hams.
My experience with these things,
Seems to me you would need either (1) a monitor device with two inputs and
built in PIP capability, another video processor in the P3 to also take your PC
video and provide PIP on the P3 output, or software and something other than a
SVGA video output form the P3 to let your PC do the PIP on it'
>
> A = 440 and while I can select this, it's low a tone to be pleasing
> on CW. A pure note on the scale would be such a pleasure to hear,
> much more psychoacousticly pleasing.
But an instrument tuned to A440 is just one of many possible tunings. There's
nothing inherently "pu
The GAP Hear-it is quite effective on SSB, but not on CW. I don't use their
speaker, but do have the Hear-it module.
Th narrower the bandpass, the less effective DSP noise reduction becomes. For
CW at narrow bandwidths, you might be better off using the audio passband
filter (APF) in the K3.
Actually, it's certainly worth trying. Not a Vik II or 500, but for goodness
sake, try it out. Look also for local weekend morning round tables on 75 if you
can get any kind of an antenna there. The power of the K3/10 isn't all that
different from many mobile rigs in the 50s/60s, and all the be
What I find most bothersome about these rants, is that somehow certain of the
owner class seems to think that Elecraft OWES them a solution or an
explanation. As though "mush" is enough of a description for a DSP wizard to
have an epiphany and write a few lines of code and fix the problem, whic
SEMI
Sent from my iPhone
On Nov 29, 2011, at 10:39 AM, "Paul VanOveren" wrote:
> Is there a way to shut off QSK in CW mode? I only find SEMI or FULL
>
> NF8J
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/l
Depends on what USB/serial interface you have, I guess.
You should be able to find drivers on the manufacturer's website. Sometimes
the drivers that ship with these things can be be pretty out of date. And yes,
you do need to install the associated driver.
Grant/NQ5T
On Nov 9, 2011, at 7:3
When the radio is warm, mine sits around 49.380.071. About 49.380.015 cold.
Did you do a manual calibration and compare it to the GPS-stabilized value? Or
just check cal against WWV. It's probably fine.
Grant/NQ5T
On Oct 29, 2011, at 4:38 PM, Mark Goecke wrote:
> I just completed the insta
What you see in the display when not tuning is the time-averaged noise (or
signal), depending on how you have the averaging parameter set. When you're
tuning rapidly the P3 can't average, so the level appears to rise. It's rising
toward the actual peak noise level.
Grant/NQ5T
Sent from my
It seems to work here like it always has. Safari downloads the file and it
opens in Preview. There is no plugin required to open a PDF. And you don't
need Acrobat.
What's you default application for .PDF files?
Sent from my iPhone
On Oct 25, 2011, at 11:09 AM, Richard Thorpe wrote:
> Since
FTDI is chipset used by a variety of vendors. KeySpan, Fluke, and others sell
Rs232 adapters based on the chipset. So perhaps your adapter IDs itself as a
Fluke (brand) adapter.
Grant/NQ5T
> .
>
> Does anyone know if Fluke has taken over FTDI, or is this an update
> that should not be e
If you've run the TX gain calibration, and that worked properly, it sounds more
like you have an actual load problem. Which would cause high current.
Is the high current warning happening both with a known good 50 ohm load
connected to the K3 and with the antenna?
Sent from my iPhone
On Sep
> Ron,
> , it is not to be unexpected that eventually another company will try to cash
> in on the perceived market to generate revenue for their business.
>
> Will Heathkit be able to produce kits to compare with Elecraft's quality and
> performance?...not likely,
This is kind of silly. He
It's probably a little bit disingenuous to bash the late 50's Heathkit products
too hard. Generally, the stuff was a good value, worked (some better than
others of course), and was certainly no worse than most other comparable
products of the time. I had a friend who got a set of St. James Gre
> I see these receivers and think back
> to that time when I wanted one, but I resist the temptation, the new
> solid state gear has much better specs and reviews,
Old gear is about ... well ... old gear, and love for it. It has nothing to do
with specs. Restoration is literally an act of lo
The KPA-500 is AC input. It does not run on 13.8vdc.
A 25A peak supply is fine for what you've listed.
Grant/Nq5t
Sent from my iPhone
On Aug 5, 2011, at 4:18 PM, "Jack Regan" wrote:
> The specifications according to the manuals are:
>
>
>
> K3 20.0 A (recommende
REF LVL -- manual p12
Sent from my iPhone
On Aug 5, 2011, at 2:52 PM, "Phil LaMarche" wrote:
> Hooked up and working. Down loaded latest revision. Trying to understand
> how to bring the horizontal signal line up on the face. It's below the line
> and all I see are the spikes. Please!
>
>
That should actually about 25% carrier.
125-150 watts carrier - 500-600w PEP AM. Shouldn't be any problem for the
KPA-500. Presuming one doesn't make an hour long old buzzard transmission.
Sent from my iPhone
On Jul 30, 2011, at 2:24 PM, Don Wilhelm wrote:
> Phil,
>
> AM with its 50% p
While a good bright light (however that is come by) is important, I don't find
the magnifiers on these swing arm lamps terribly useful for fine work. The
problem is that viewing angle can be critical and putting the glass in the
sweet spot is fidgety.
A head worn magnifier is far better in my
Why does it seem odd that these would show up on eBay of all places in such
large available quantity?
3rd party? OEM part?
Grant/NQ5T
Sent from my iPhone
On Jul 12, 2011, at 10:00 PM, Pete Barth wrote:
> Hello friends,
>
> I was just looking around eBay for some Elecraft stuff,
> and I
But circumstances are rarely "identical".
In any case, if you don't want a KPA500 don't buy one. If you do, then do.
What about that is worth all of argument about it? I had to cancel my order
for one because I needed the funds for another purpose. Once I sell some other
unused stuff I plan
Not a bad idea -- the notion would be to allow "fine tuning" of the marker
position (and actual receive frequency) after a press. It should also still be
possible for a press/hold to get you back to the original frequency.
Grant/NQ5T
Sent from my iPhone
On Jun 20, 2011, at 2:31 PM, "Bob Full
I give :-/
Why use a D-104 if that's the only point? A $3 electret from " the shack" will
do just as well.
Hopefully, someone will step in and kill this thread.
To the original poster - the simple solution is to use an Astatic stand with a
preamp or something similar. Or as Don suggested,
Sent from my iPhone
Begin forwarded message:
> From: Grant Youngman
> Date: June 4, 2011 5:29:16 PM CDT
> To: Ron D'Eau Claire
> Subject: Re: [Elecraft] D 104
>
> Gain isn't the issue. It's the termination Z. A low Z termination will
> destroy the
If there's enough gain, probably work fine. As large an R as possible. The
termination Z affects the low freq response of the element. I realize some
here aren't keen on that, but it makes a difference :-)
Sent from my iPhone
On Jun 4, 2011, at 3:37 PM, Don Wilhelm wrote:
> Grant,
>
> Then
Sent from my iPhone
Begin forwarded message:
> From: Grant Youngman
> Date: June 4, 2011 3:12:03 PM CDT
> To: "j...@audiosystemsgroup.com"
> Subject: Re: [Elecraft] D 104
>
> 10-15k is not high enough for good performance from a D-104 element. It will
> so
That would be a COMPLETE AND TOTAL waste of time. The K3 mic input Z is 600
ohms nominal per spec.
The D-104 element needs 500k minimum and better no less than 5M. Last I heard
the input stage of a K3 was not a 12AU7/12AX7.
That's why Z transformation (preamp, xformer) IS required for this el
Or a simple matching transformer -- Hi-Z to Low-Z. But in either case, you
can't run a naked D-104 into the K3 mic input. The element needs to see a very
high impedance.
Grant/NQ5T
Sent from my iPhone
On Jun 4, 2011, at 1:45 PM, "Lou Kolb" wrote:
> You'd also be well advised, if its an una
How about wiggling your ears?
Problem with a head nod is that if you fall asleep (or "nod off") you might key
up. Maybe you could shake your head quickly -- but in a rapid conversation
someone's bound to think you're having seizure and call 911. Or if you
actually have seizure, you might key
On Jun 1, 2011, at 4:07 PM, Forums wrote:
> ... any current production laptop that has stereo inputs except the Apple
> MacBook series and it doesn’t run windows natively,
Actually Macs do run Windoze natively-- with Bootcamp. And quite well.
Grant/NQ5T
__
K2, K3??? WTF.
Sent from my iPhone
.
>
> Please consider a KX3 Heavy Duty version, with a lithium battery and higher
> power output (25W) in a bigger box.
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An attenuator does that.
Sent from my iPhone
On May 28, 2011, at 8:41 PM, Bill Swindell - K1LED
wrote:
> I think it's weird. I still think the way is should work is to actually
> reduce the rf-gain. I think the purpose of the rf-gain would be to limit the
> input to the rf input of the receiv
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