Well, the selfish answer is that you should write code, which would
benefit all of us ;-) But considering the season, I think we should all
give you the gift of time to relax and build a K1.
73,
Larry N8LP
Simon Brown (HB9DRV) wrote:
The replies are flooding in (mainly private mail), so f
100Mb ethernet has more than enough BW and low latency... uncompressed
PCM at voice quality is easily done... existing ethernet interfaces
exist with built-in processors, lots of memory, multiple serial data
ports and a web server, all in a package that looks like an ethernet PCB
connector.
You can do this with an embedded serial device server using any radio
with a serial port... but of course you are limited to the supported
commands/data on that port. If you have access to QST, see my article in
the October edition... or go to the "Remote Control of Networked Station
Equipmen
Good point, Jim. The main reason I got a K2 wasn't for the thrill of
building, it was for the serviceability. I don't see the Sienna being
easy to repair or modify.
Of course, the price would take it out of contention anyway ;-)
Larry N8LP
James T. "Jim" Rogers, W4ATK wrote:
At $
Hi Jim. I downloaded the program and played with it. I also looked at
the source code (and made one change, as I use ports higher than 4 for
my rigs). What are you looking for as far as contributions? In
particular, I was thinking of changing the tuning buttons, and the color
and layout of the
If you are using it just for cw keying, the K2 has a built-in keyer that
works similarly, and it can be controlled from a number of programs like
TRX-Manager.
Larry N8LP
Hank Kohl K8DD wrote:
Robert C. Abell wrote:
Hi Andy,
Where does one buy the micro Ham CW Keyer? Is it a kit? I'm i
Look at the CTR-Remote link in the software section of the Elecraft
website. If your iPAQ runs Pocket PC software, it looks like what you
need. And it looks pretty spiffy too.
Larry N8LP
[EMAIL PROTECTED] wrote:
Hi everybody! Does any one know of a rig control program that will run on
m
Based on some of the questions I have been getting off-list, I have made
some changes to the webpage for my new kit, including return loss graphs
for the dummy loads. See www.telepostinc.com and click on the LP-200
link for the updated page.
73,
Larry N8LP
JEAN-FRANCOIS MENARD wrote:
Ver
I have developed a new project kit that should be of interest to
Elecrafters. It is an inexpensive, accurate digital dummy
load/wattmeter. It is patterned after the concept of the mini modules in
that it is board based with no cabinet, although it does come with an
aluminum base plate to avoi
Wow, that's really impressive Milt. Good show!
Larry N8LP
Milt, N5IA wrote:
K7EAR, the Eastern Arizona Amateur Radio Society, Inc. (EAARS), is
proud to announce that the results of the ARRL 2005 Field Day as
posted on the ARRL members only web page shows the following:
K7EAR, as a solar
To show how much things have changed, I was in the rifle club in high
school in the 60's, and it was in a suburban school... not the country !!!
Larry N8LP
Margaret Leber wrote:
Fred Jensen wrote:
2. "Razor blades" and "campus" don't sound like they belong in the
same sentence. Any su
A good scope is a handy thing to have, but you don't need one to build a
K2. Look for a used Tektronix scope if you get one. 100mHz or more, dual
trace, delayed sweep. A 465 /475 series is small and portable... or a
7000 series mainframe with plugins gives you more flexibility, is easier
to m
I posted this to TowerTalk yesterday. I received my copy yesterday in
the mail and I was very impressed with the quality... it's just like
having the original book, even though it is printed from a scanned pdf.
The pdf is also available for free at LuLu and elsewhere.
Larry N8LP
John D'Au
Well stated, Mitch. As one of the other contributors and pre-orderers, I
can state unequivocally that these guys poured hundreds of hours into
the details of this product, with very professional results.
Larry N8LP
Mitch Easton wrote:
Elegance. Excellence. Usefulness.
These three qualitie
Firefox is a good, secure, free browser.
Larry N8LP
Thom R LaCosta wrote:
On Wed, 31 Aug 2005, Stan Rife wrote:
Just went there Tom, and the give away is over.
Sorry...after I posted it I realized they were using GMT+1and I
was thinking GMTsorry for the mistake.
Thom
___
If you plan on future options, I would look at the un-modules from Gary,
KI4GGX.
http://home.cfl.rr.com/garyhvizdak/KI4GGX/unpcbs.htm
They plug in in place of the future modules, and make it easy to plugin
the new modules as you build them instead of having to unsolder and
remove parts from
I guess I should have read it more completely. Yes, I guess it's just
another case of deregulation, and I suppose we don't need the government
telling us to like cw ;-)
BTW, I too have that pretty blue piece of wallpaper on my wall, although
I did need it way back when ;-)
73,
Larry N8LP
Saw this posted on TowerTalk... from the following link...
http://www.fcc.gov/Daily_Releases/Daily_Digest/2005/ddtoday.html
AMENDMENT OF PART 97 OF THE COMMISSION'S RULES TO IMPLEMENT WRC-03
REGULATIONS APPLICABLE TO REQUIREMENTS FOR OPERATOR LICENSES IN THE
AMATEUR RADIO SERVICE. Revised the
Even though I have used SMT parts in my personal projects Craig, I agree
with most of what you have said, and avoid them in projects aimed at kit
builders. I will take exception, however, with your last statement. We
are well past the point where every variety of IC is available in both
SMT a
I assume you are using the DL-1 as the load for all three tests, in
which case I would have to go with the DL-1 plus DMM. The impedance
error should be less than 5%, and the voltage measurement error less
than that.
Larry N8LP
John Pfeifer wrote:
Just finished building KX-1 #1207 with 30m
Frank, you might want to look at Gary, KI4GGX's "unpcb"s. They are dummy
boards that replace all the optional boards and include the parts that
would normally go on the main board. The idea being that you don't have
to rework the main board to uninstall parts when adding an option in the
futu
A perfect example of the kind of semi kits I was referring to in my
earlier post. Also check out www.amqrp.org, www.tapr.org and N2PKs
projects at http://users.adelphia.net/~n2pk/.
Many of these offer full or partial kits, but you can wind up with some
very useful test gear that beats the pant
If you want to start gathering test equipment Matt, you should start
watching eBay and other used equipment sources to get an idea what's out
there and what it goes for. I'm a big believer in buying used gear of
10-20 year old vintage from Hewlett Packard and Tektronix in particular.
I have an
Try skype (www.skype.com) or NetMeeting. These are not nearly as good as
a direct connection, but they work OK for SSB and a number of people are
using them.
Larry N8LP
[EMAIL PROTECTED] wrote:
Hi Elecrafters,
I recently posted a tongue-in-cheek note about using the K2 by remote
compute
Jay, the Tek 492 will do the job IF you have an accurate way of
calibrating it and IF you know exactly the attenuation at all
frequencies of interest of the attenuator you will be using. I'm not
familiar with the '492... I have a 7L13, and on the 2dB scale the
divisions are .4dB.. which are p
I've been following your progress Gary, and am signed up for a set. I
think it's something all Elecrafters should look at... especially at the
price.
Larry N8LP
Gary Hvizdak wrote:
After a brief email exchange with N0SS it became apparent that most
on the Reflector are unaware of what Ke
Give him a jungle. Greg is a good guy and I'm sure would welcome the
query. He is the guy who spearheaded the N2PK VNA kits and wrote the
control software for it.
Larry N8LP
Tom Bosscher wrote:
Any body on the forum ever look at this software S-meter? :
http://www.seed-solutions.com/gr
Check back in Jan 2004 QEX. There was a construction article on a nifty
little calibrator that you can build cheaply that would work perfectly.
It was written by K3NHI. It used a CMOS clock, battery and a few other
parts, and only requires a DVM to calibrate.
Larry N8LP
Howard W. Ashcraft wr
Hi Dan, didn't know you were an Elecrafter ;-) I think Q signals are OK
on phone. If the uninitiated don't know what they mean, they'll either
learn it or remain in the dark. Let's challenge them to learn the
codes... it won't hurt them, and maybe eventually they will become
curious about cw (o
It's possible that those indications are accurate and related, but not
necessarily so. Most wattmeters show total forward (including reflected)
power, so if the reflected power goes up as the incident power goes
down, the total remains the same. If your external wattmeter shows
actual delivered
Thanks for the feedback Dave. In its current config it would be
ill-suited for portable use. I am thinking about maybe adding an option
so that the external coupler can be eliminated for those who would
prefer an internal one with a rating of around 200W. It would require
making the rear pane
It has been brought to my attention off-list that the name e-meter is
used widely in the Scientology community, so for safety I think I will
henceforth refer to my project as the E-100. Doh! I will make the
changes on my website and on the front panel of the Elecraft style case
when it is fi
Yes, it can be controlled by computer and I supply Windows freeware to
do so. The SWR alarm beeps now, and I could add the other features. I
think I like cw better than voice, and I like the idea of a variable
pitch tone for tuning. Variable tone and cw output would be very easy to
add even to
Thanks for the input Eric.
You may be right on a couple of counts. I am only a QRPer in the field,
and tend to be more more a "100-watter" at home. Since I had 90dB of
dynamic range to play with, I decided to use it all, thus the 2500W top
end (I also picked 2500W because it represents 2dB of
I want to thank all Elecrafters who stopped by the SteppIR booth to see
my prototype E-meter wide dynamic range digital wattmeter kit. Thanks
especially to Eric who offered words of encouragement... a real gentleman.
I was surprised I didn't see more QRPers though, since the E-meter is an
ou
I totally agree with your last statement. I sell a couple of small kits,
and also offer them assembled. Even though the hardest one takes less
than 8 hours to build, a third of all orders are for assembled.
Larry N8LP
Bill Coleman wrote:
As to the title of this thread -- I don't think tha
I will be demo'ing my E-Meter digital wide dynamic range power/SWR meter
at the SteppIR booth at Dayton this year. The E-Meter will be of
interest to Elecrafters bcause it provides accurate power readings from
10mw to 2500W, and accurate SWR readings from 50mw to 2500W. The demo
will include
Try the DDS daughtercard then, it may be more available because it is newer.
Larry N8LP
Bruce Bowman wrote:
re: IQ-VFO... unfortunately amqrp.org announced they are sold out of the
kits and won't be getting more.
Bruce NM5B
You might want to look at the IQ-VFO or DDS daughtercard from
You might want to look at the IQ-VFO or DDS daughtercard from AmQRP,
http://www.amqrp.org/.
Larry N8LP
Chris Page wrote:
Has anyone built an external VFO for the K2, please?
I took the plunge last Sunday and sold my UK main station
transceiver, a Ten-Tec Omni VI, and have replaced it wit
My perspective is probably in a minority here, but here goes.
I didn't buy a K2 because I like building kits. I do a lot of building
and experimenting, and I want to use my time and skills to create new
things, not assemble kits. I bought my used K2 on ebay because I can
work on it. I have do
For a number of reasons, not legal since I was unaware of any
limitations, I have always used ISDN for my remote base operations.
Total privacy and security (you have to not only know the phone numbers,
but the passwords as well).
Much better sound quality (good enough fr PSK).
Redundancy.
I should point out that TRX is very well supported by the author, and he
allows OLE linking of third party software and hardware. I have some
freeware apps on my website that support TRX for use with rotators,
SteppIRs, remote relays, etc.
Larry N8LP
www.telepostinc.com/n8lp.html
[EMAIL P
Another good choice is Hamscope. It's still free I think, and it links
to TRX-Manager thru OLE, so you can use one common rig controller and log.
Another well integrated package is the DXLab suite. It is free, and
extremely well supported, but not in the league of TRX for remote control.
As
The best commercial product for remote control IMHO is TRX-Manager,
especially for Kenwood TS480/2000 and K2. You might want to try the free
30 day trial. But if remote control is not important, there are several
good freebies to try, including HRD.
Larry N8LP
[EMAIL PROTECTED] wrote:
Now
All that is undoubtedly true... but if you still want to try it, I would
think you would get better results with a convection kind of toaster oven.
Larry N8LP
Henry Gardiner wrote:
SMT soldering was designed to obtain high volume and high quality
solder joints with great uniformity so tha
I would put a balun or choke at the feedpoint of the HexBeam for
starters... sounds like
rf on the shield might be causing problems.
Larry N8LP
Stuart Rohre wrote:
I looked at the HEX BEAM web site to see if anything special about the feed.
Sounds like it is a simple 50 ohm coax connecti
n our
toaster oven, but solder isn't one of them. Yet...are you serious or is
"toaster oven" a slang word for some expensive SMD assembly equipment?
Eric
KE6US
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Larry Phipps
I have no problem with
Looks good Bob. Are you planning a two-port version where the DDS output
and bridge/coupler input are brought out to BNCs for doing transmission
measurements like measuring filters, etc.?
Larry N8LP
Bob - W5BIG wrote:
During the past two years I've been developing a vector impedance mete
Don't knock tubes. My first kit was a Harmon Kardon stereo amplifier
with lots of tubes and no PC baord. It was great fun. I also built
Dynakits and Heathkits with tubes. There's nothing like the smell and
glow of vacuum tubes to warm your heart.
Now I build lots of gear with SMD parts, and
You guys bring up memories. I think I was a bit behind you. My first
experience at school was with an IBM 360 at the Univ. of Mich., running
a proprietary language known as MAD (Michigan Algorith Decoder), plus
the usual COBOL/SNOBOL/Fortran, etc. I remember punch cards and batch
output (wha
Good post, Rob. I second what you said. You will find the N2PK a
valuable piece of gear. Software-wise, look at Greg Ordy's Cialog
software which also works with the AEA CIA-HF. As such, it limits the
resolution of some functions to that which is supported by CIA... the
VNA libraries are avai
LP
Stan Rife wrote:
Is this a spot??
Stan Rife
W5EWA
Houston, TX
K2 S/N 4216
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Larry Phipps
Sent: Friday, April 15, 2005 6:08 PM
Cc: elecraft@mailman.qth.net
Subject: [Elecraft] More K2 Mojo.
Just worked a special events station in Maine... W1T... commemorating
the sinking of the Titanic. He is on 14256. I had just finished a change
on my HB minibeam and was tuning around A/B'ing signals with my sloper,
and came across him. There was a huge pileup, and for kicks I called
him. Nabb
Mike, I wouldn't put much stock in any wattmeter, including Bird, at 10%
of full scale.
Larry N8LP
Mike Monger wrote:
Hi Fellow Elecrafters,
How accurate have you found the internal power meter/wattmeter to be on the K2???
I ask this because there is a large difference between what I
In addition to my professional bench gear, I have an MFJ, Autek and AEA
CIA Analyst. I use all but the Autek and AEA regularly and find they
each have a purpose. When I want a to do a quick check of resistance,
reactance, SWR or return loss on the bench I grab the AEA... especially
if I want
The problem with it is that the resolution for the FFT function is quite
limited, just 4096 "bands" so you need to use a narrow bandwidth to get
good resolution... and the dynamic range is only 50 dB.
I would rather have a Tek TDS-1000/2000 series sampling scope and a used
spectrum analyzer.
ssage-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Larry Phipps
Sent: Wednesday, April 13, 2005 9:07 AM
Cc: Elecraft List
Subject: Re: [Elecraft] Potential Elecraft Kit
This looks like a nice little analyzer. I have used the AD8302 and it
does a decent job within its 60 dB
it's awesome.
Larry N8LP
Stewart Baker wrote:
On Wed, 13 Apr 2005 12:06:59 -0400, Larry Phipps wrote:
Note that it
is a one port device, however, so it can't measure DUT input vs. output
parameters such as gain and phase and other parameters between input and
output.
port device, however, so it can't measure DUT input vs. output
parameters such as gain and phase and other parameters between input and
output.
Larry N8LP
Stewart Baker wrote:
On Wed, 13 Apr 2005 09:28:56 -0400, Larry Phipps wrote:
They may get another one going, but it was a lot of
They definitely multiply Chris. I think you could probably break any
pileup ;-)
Larry N8LP
Chris wrote:
I'm wondering about this K2 mojo that I keep reading about.
Went into the shack last night about 23:30 UTC, turned on the K2,
selected 20m, tuning rate to 1kHz and had a quick tune up a
r Network Analyzer.
http://groups.yahoo.com/group/N2PK-VNA/
So far, I think it is a better design and is cheaper.
Bob
N4HY
Larry Phipps wrote:
TAPR has a nice VNA project going, www.tapr.org... it was featured in
a July/August QEX. They are also going to offer it assembled I think
thru Te
TAPR has a nice VNA project going, www.tapr.org... it was featured in a
July/August QEX. They are also going to offer it assembled I think thru
Ten-Tec. It does a lot more than an antenna analyzer to boot, but
requires a computer so is not portable. It does all the complex
impedance measurement
There are a couple sources for boards for the W7ZOI spectrum analyzer
project that ran in QST some years back. Also, for about $500-700 on
eBay you can get a used HP or Tek SA that will blow the doors off an
inexpensive kit version. If you do a lot of RF design work, it's a must.
The two most u
For convenience, Mini-Circuits has a nice printable conversion table at
http://www.mini-circuits.com/dg03-110.pdf
Larry N8LP
Tom Hammond wrote:
At 12:01 PM 3/30/05, you wrote:
How would one calculate the amplifier gain (in dB) required to go
from one
power level to another? For exampl
That's $4000 in 1978 dollars... probably less than a K2 in today's
dollars. I wish I still had my TR7... in retrospect, it was probably my
favorite rig ever, and that includes a lot of rigs from Collins, ICOM,
Kenwood, TenTec, etc. It was also one of the few I've had (besides the
K2) that you c
Make sure the keying circuit is for positive voltage. Some of the keying
circuits I've seen for K2 are designed for negative voltage keying...
the SB-200 is positive I believe.
Larry N8LP
Stan Rife wrote:
Dwight,
I am going to use my SB-200 with the Elecraft. I have purchased an
it
I have been real happy with the Gali series from Mini-Circuits... they
are strong, quiet and super easy to use. I have used them in several
critical applications with great success... much beter than the oder MAR
series. They cost a couple bucks each, and are in a SOT-23 case.
Larry N8LP
[E
I agree, and eventually RF/IF DSP will be commonplace... but you will
need a magnifying glass to see the chips, since all the good new stuff
is micro-miniature ;-)
Larry
Geoffrey Mackenzie-Kennedy wrote:
Great will be the day when a DSP unit running at
VHF, with a high IP3in etc, and low n
I don't know, but he sang "Ain't Got No Home".
Larry N8LP
ron wrote:
Hey! Clarence "Frogman" Henry! Isn't that the guy that sang the 60's song,
"But I do"??
Ron wb1hga
[EMAIL PROTECTED] writes:
I was
stopped in my tracks momentarily when I was told I sounded like Roger
Daltry! Is this
You fared better than I did Tim. I had a '76 Europa Twin Cam, the black
JPS job with gold pinstripes. Eventually sold it for lack of garage
space... my wife was happy, my son hated me ;-) I loved scaring people
by taking corners at speeds they thought were impossible.
Still married after 28 ye
That looks perfect Benny, no matter where you mount it.
Larry N8LP
Benny Aumala wrote:
In stead of modifying the well-designed interior of K2,
the clipper can be external. Look at www.qsl.net/df4zs
where a small print is inside the microphone itself.
Having access to + voltage, mic can have
This is one for Eric to weigh in on, but with proper in/out routing
between transmit and receive, I wonder if it wouldn be possible to come
up with an algorithm to make the KDSP2 work as an rf clipper/filter in
transmit with baseband audio output? Of course, the settling time
between T/R might
Yes, that's the one I had and was referring to... it worked great. I
knew it was Com-something ;-) Sounds like there are already a couple of
knockoffs out there.
Larry N8LP
David J Windisch wrote:
Hi, all concerned:
I have an old Comdel in-mic-line r-f clipper, which uses fewer than
100
I remember I had one of the first of those external rf clipper
processors about 20 years ago... it was called Com-something. They used
an "if" of about 50 kHz, with LC filters... it worked amazingly well and
was sought after by DXers and contesters.
Larry N8LP
[EMAIL PROTECTED] wrote:
You
without signal degradation.
This is how I run my K2 and I hear no difference with strong off
frequency signal blow-by between it and the other $3K+ rigs we have in
the lab. :-)
73, Eric WA6HHQ
Larry Phipps wrote:
Sounds like the age old debate in the hifi world about the "sweet"
so
rigs we have in
the lab. :-)
73, Eric WA6HHQ
Larry Phipps wrote:
Sounds like the age old debate in the hifi world about the "sweet"
sound of tube amplifiers vs. the "hard" sound of clearly superior
modern solid state amps.
Preferences aside about slopes and shape facto
Sounds like the age old debate in the hifi world about the "sweet" sound
of tube amplifiers vs. the "hard" sound of clearly superior modern solid
state amps.
Preferences aside about slopes and shape factors... I'd like to have
MUCH better ultimate rejection... and a true rf clipper would be a
Due to the huge number of projects I'm in the middle of, I decided I
don't have time to build a kit, so I bought a used K2, serial # 568. It
already has some updates, and it will cost me about $100 to add the
remaining updates and mods I think are important. That's amazing.
The first thing I
There is acompany out of Germany that has made such a device for
years... it's very well built, but very expensive.
Larry N8LP
Ben Hofmann KB1AHR wrote:
John W2XS, I have been wondering about a balanced L
network auto tuner for some time now. No one is
making one that I know of at this tim
N1MM logger has a nice SO2R implementation for 2 radios. It supports
7800, Orion and K2 via Kenwood protocol. It's also free if you want to
try it.
Larry N8LP
Neal Campbell and Sarah Ferrell wrote:
Its an obvious direction that 2 K2s (KK4?) would be a great,
desktop-friendly SO2R setup. Any
As I think more about it Geoff, I would need a pair of mixers in order
to get the tuning right-side up again. A first conversion to, say 45
MHz... and a second back to 28 MHz. Injection would be from a xtal osc
for the first conversion and a VCO running in the 46-73 MHz range. High
side injec
Thanks for the comments Geoff. As I think it through more, I will have
to weigh the compromises, but I think a workable design can be done. I
will work up a test board using my HP sig gen for injection, a
Mini-Circuits DBM and some Coilcraft 7-pole filters I have on hand for
the mixer and prese
It was correctly pointed out to me off-list that my example of a 7 MHz
"IF" would tax the input filters in order to get the best image
rejection. I used that example since it was the first band that starts
at "000".
The filtering requirement could be relaxed considerably by using a 28
MHz "IF
I would love to see an actual K-RCV with low distortion synchronous AM
detector.
In the meantime, here's a concept I have been toying with building. The
R-388, like most Collins gear, uses front-end converters to shift a
whole band segment so that the rest of the receiver becomes a tuneable
Yes, this does seem logical... I have a kit of precision resistors
that's at least 15 years old that is marked in that way... so it's not
new. I know there have been recent attempts to standardize on a new
system for parts... put forth by CCIR or IEEE or someone.
I guess I can deal with chan
I agree with all that, although I remember referring to GHz as gc (as in
2.1 gee-cee for 2.1 GHz).
My profs only knew Hertz as a radio pioneer... not a term... and my
textbooks as well (still have them).
Larry N8LP
Fred Jensen wrote:
Not to rain on anyone's parade, but I think I remember
Guilty on the age charge! I also remember uufd... and what's this
newfangled Hz thing? Hi Hi.
Larry N8LP
Ron D'Eau Claire wrote:
Larry, N8LP wrote:
Oops... it was pointed out to me off-list that the required cap is 4.7
"nf"... not the 4.7 "pf" I misread it as. I would expect 4.7 nf more
c
Oops... it was pointed out to me off-list that the required cap is 4.7
"nf"... not the 4.7 "pf" I misread it as. I would expect 4.7 nf more
commonly to be written as .0047 uf, but maybe it's an international thing.
If this is indeed the case, then a gimmick will obviously not work, as
they a
You could make a temporary gimmick cap by soldering a short length of
small gauge insulated wire to each pad, and then twisting the wires
together a few turns.
Larry N8LP
Peter Zenker wrote:
Jess,
You may use any small 4.7 nF cap instead of the SMD if you solder it with
short legs.
I wou
I second ExpressPCB. I have done several projects with them, including
two that I am marketing... the end results are very professional and the
cost is competitive.
Larry N8LP
Dan Barker wrote:
Old link. sri om.
try: http://www.expresspcb.com
-Original Message-
Try http://www.exp
I got some conductive foam for shipping of parts from these guys...
http://www.staticspecialists.com/esdbags.htm#Foam%20and%20Bubble
They have a couple choices in the $13-14 range for a sheet 2' x 3' x 1/4"
Not free, but at least it's a source.
Larry N8LP
Carl, n5wn wrote:
A good material
LTSpice is a freeware Spice program from Linear Technology that is quite
good and easy to use... and the price is right.
Larry N8LP
Howard W. Ashcraft wrote:
I am looking for software (preferably Linux, open source) to model electronic
circuitry. My primary interest is educational. I wan
And a humble THANK YOU from us civilians who benefited greatly from your
service.
Larry N8LP
W2BJ wrote:
Happy Veterans Day to all vets on the list!
73/72,
Barry, W3BJ
LTC, US Army (Ret.)
___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
It's nice to see some fellow ex-broadcast types on here. I worked in TV
broadcast and later owned a post-production house. I think I've used or
owned just about every AMPEX product ever made dating back to the model
350 audio tape deck, every VTR from the VR-1000 forward except the AVR-3
and VP
Check out my E-Meter at www.telepostinc.com/n8lp.html
I am getting very close to offering a kit version of it. A comprehensive
article will also be published in QEX in the near future if want to
homebrew your own. They accepted my manuscript a few weeks ago, but
haven't given me the publicatio
Yes Jack, you're right... obviously some kind of encoding is required. I
guess you could invent you own, maybe using fsk, but tcp/ip is there and
it works. I think he may be saying he wants to avoid an internet
connection. I had excellent results using ISDN... high quality audio,
low latency, t
John, the only way to do what you want and have the control software at
home is to use a serial device server. There is info on this on my
website as Richard mentioned.
Serial device servers can either be hardware devices or software run on
a remote computer. I use the hardware approach. I got
I haven't built a loop like this, but here is some general info about
ferrite vs. powdered iron...
If the toroid will be used only as a transformer and not as a coil,
then you can use either ferrite or powdered iron. For low-band only work
you could use FT-50-43 or -61. For all bands, I would
Try my LP-Rotor freeware program at www.telepostinc.com/n8lp.html
It works with Hy-Gain DCU-1, and Rotorcard and Rotor-EZ from Idiom Press. It
works standalone, and it also can accept DDE commands from TRX-Manager. There
is a help file on the website that you can read through before downloading
Interestingly, my TS850S does this too... it's a well known bug in the TS850.
The Kenwood problem is in the ALC circuitry, new rigs don't do this... it
develops over time.
I'm not familiar with the K2 circuit, but it sounds like it could be a
decoupling problem.
Larry N8LP
- Original Me
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