Hi
I'm thinking about buying a scope. I've seen many people recommend
getting an old analog scope, but they're big! I borrowed a compact 100
MHz digital scope from work, and it was nice. 50 MHz scopes are a lot
cheaper, though.
Will I regret getting a 50 MHz scope instead of a 100 MHz one?
David Ferrington, M0XDF wrote:
Ah - ok, so we order, you send KXV3a and an envelope and we return
KXV3 - at your cost (which was the info I was looking for :-)
Thank you, a considerate Elecraft, as always.
73 de M0XDF, K3 #174
He didn't say they would pay for the postage, only the
Hello friends,
after some local discussions with Jan, OK2TT, and others intersted in
using K144XV as a driver for higher bands transverters there are
some questions:
1) what about supported frequency range? We are using mostly 146 to
148MHz as I/F frq from transverter(-s) so we hope it will
I am looking for software similar to DigiPan which for PSK31 provides panoramic
display of frequency spectrum and identifies each station with its callsign and
call info. I want one FOR MORSE. I am totally deaf and want to work in
contest and I think this is the answer for me. I tried
Agreed Terry. The KDVR3 is very good. Transmission of a recording of your
own voice sounds just like it's live and txing a recording of another
station is just like the original reception. Playing a recording of a
received transmission on speaker/phones is indistinguishable from live rx.
But
John Chance-Read wrote:
I am looking for software similar to DigiPan which for PSK31 provides
panoramic display of frequency spectrum and identifies each station with
its callsign and call info. I want one FOR MORSE. I am totally deaf and
want to work in contest and I think this is the
But one thing I would like to see is MON automatically switched on at a
predetermined level when txing a recording. This has been mentioned a few
times on the reflector and may already be on the firmware list. Perhaps Lyle
can confirm?
I confirm it has been mentioned and is somewhere on
Jon,
For use on the HF bands, go for a 'scope rated at 100 MHz or higher, and
be certain to use probes that are also rated for 100 MHz or more.
The frequency rating of a 'scope is the point where the vertical
response is down 3 dB, so you will not be able to do valid voltage
measurements at
...Would it be possible,
instead of returning the KXV3, to modify it to provide the IF access for the
internal transverter?
It is impractical. The KXV3 consists of two PCBs, and the main PCB has
been altered to include a number of new parts to support the new
features required for internal
Ran across this and know there had been some questions for a small amp. This
one is spec'ed for 160 through 6 to 20 watts. Looks like it will be a kit
from TAPR in the future:
http://openhpsdr.org/wiki/index.php?title=PENNYWHISTLE
73,
Julius
-
Julius Fazekas
N2WN
Tennessee Contest Group
ModuleS ... Sweet !
Ok- I'm in line for the K432XV too!
Wonder if 'somebody' is already looking at satellite operating
features...
Then VLF, then 70Mhz ...
I wonder how many modules will fit?
(amazing what you can see in a single 's' )
Niel
WA7SSA
Sent from my iPhone
On May 21, 2009, at
Then VLF, then 70Mhz ...
70MHz? How much of the world has a 4 meter (metre?) allocation?
Wonder if 'somebody' is already looking at satellite operating
features...
W2CVZ was asking about satellite ops when the K3 was first announced
and the answers ended up in the faqs. Looks like we're
Anybody else tested this?
I can't get speaker protection to work.
Or does it only work with higher AF levels?
73'
Paul
PD0PSB
MCU 3.14 / DSP 2.16 May 9, 2009
* SPEAKER PROTECTION: If you’re set up for stereo speakers
(CONFIG:SPKRS = 2), but insert a mono speaker plug, the right
speaker
How do you know what the frequency rating of a scope is?
What is the rating of my Techtronics 475?
We used them at work for required adjustments to tolerances of 2/10
nanoseconds.
Thanks es 73, de Jim KG0KP
- Original Message -
From: Don Wilhelm w3...@embarqmail.com
To: Jon Kåre Hellan
Don covered it nicely. Unless you know you'll never use the scope for
anything but routine linearity checking and other simple measurements in the
HF range, get as much bandwidth as the budget allows in both the
oscilloscope itself and the probes.
The point is that if you put a 50 MHz square
Jim,
You have to know the 'scope specs. The Tek 475 scope is a 200 MHz
'scope, the 465 is 150 MHz.
The frequency rating of the probes will also provide an upper limit.
The resolution on the time axis is quite a different consideration than
the frequency rating for the amplitude (and rise
Hi Paul,
Just plugging in a mono plug by itself is not detectable in firmware.
The protection kicks in as a result of a brief spike in AF amp current
drain. To observe this you need a mono plug, SPKRS=2, and moderate to
high volume setting with a strong signal in the passband. This will
On Thu, 2009-05-21 at 10:20 +0200, Jon Kåre Hellan wrote:
Hi
I'm thinking about buying a scope. I've seen many people recommend
getting an old analog scope, but they're big! I borrowed a compact 100
MHz digital scope from work, and it was nice. 50 MHz scopes are a lot
cheaper, though.
Clear Wayne, tnx.
I consider this a don't try this at home ;-)
Smart solution btw!
73'
Paul
PD0PSB
wayne burdick wrote:
Hi Paul,
Just plugging in a mono plug by itself is not detectable in firmware.
The protection kicks in as a result of a brief spike in AF amp current
drain. To
On May 21, 2009, at 2:55 AM, Alexandr Kobranov wrote:
Hello friends,
after some local discussions with Jan, OK2TT, and others intersted in
using K144XV as a driver for higher bands transverters there are
some questions:
1) what about supported frequency range? We are using mostly 146 to
On Thu, 2009-05-21 at 08:13 -0700, Ron D'Eau Claire wrote:
I agree with Don, I like analog scopes. Any time a signal is taken to bits
(literally!) and then reassembled there are display artifacts and some
accuracy of the waveform is lost but, you're quite right, analog scopes are
*big* and
I would stay away from early hp digitals, they are nothing but
trouble, just take my word on this one, you are better off with a 2430
(might have dyslexic on the number)
The new digital lunchboxes are nice too, and if you know what you are
doing you have no problems, I attribute the 'old timers'
I'm a very old fashioned guy; HF radios and computers don't combine, I just
can't stand any selfmade-QRM.
That's also one of my reasons for choosing the K3. The internal data/cw
decoder works very well!
It would be nice not only to decode without needing a computer but also to
TX without having
I understand what you are saying, but an PDA IS a computer! Perhaps
not what you may think of as a PC or Mac, but they are computers.
As is the K3! Ok, the K3 is not a general purpose computer - you can't
do spreadsheets on it (yet!), but it has firmware and processors etc -
it's a computer.
On Thu, 2009-05-21 at 11:31 -0500, Matt Palmer wrote:
... Since I grew up with a
infiinium, i've never had a problem seeing and removing aliasing
errors and others, but you have to have a decent sense for what to
expect to see, and know which way to turn what knobs to make it look
right.
I think higher audio levels may be needed to test the speaker protection
function.
I inadvertently tested speaker protection. I was using the XG2 to do some K3
audio tests. I had the XG2 off and I turned the RF gain to full, AGC off and
audio up to where I could hear Band noise. Turning the audio
That`s the second hint Lyle has dropped. I'm not going to hold my
breath, since I don't look good with a blue face, but
73, doug
From: Niel Skousen nskou...@talisman-intl.com
Date: Thu, 21 May 2009 07:12:46 -0700
ModuleS ... Sweet !
Ok- I'm in line for the K432XV too!
I know david :-)
I have some experience controlling radios by a battery-fed palmtop and
generated QRM is near zero. There are also some older palmtops running on
AAA batteries and they keep working several weeks without a refill. Added up
this makes field-using a Palm for datamodes pretty ideal!
Many thanks Lyle :-) I'll look forward to its implementation.
73
Geoff
G3UCK
- Original Message -
From: Lyle Johnson k...@wavecable.com
To: elecraft@mailman.qth.net
Sent: Thursday, May 21, 2009 2:01 PM
Subject: Re: [Elecraft] [K3] KDVR3 few questions
But one thing I would like to
What is the rating of my Techtronics 475?
We used them at work for required adjustments to tolerances
of 2/10 nanoseconds.
Thanks es 73, de Jim KG0KP
For any common model you can easily find info on the web if you aren't sure.
Bandwidth for scopes is like horsepower for a performance
Jim:
Just GOOGLE for 'tektronix 475' and then select one or more of the
links.
I quick search shows that the Tek 475 is a 200 MHz o'scope.
73,
Tom N0SS
At 10:06 05/21/2009, you wrote:
How do you know what the frequency rating of a scope is?
What is the rating of my Techtronics 475?
We used
Thanks everybody on the Tek 475 info. I use Google for a lot of things -
why don't I think of it in a case such as this ??? Old age gets the blame
again.
Thanks es 73, de Jim KG0KP
- Original Message -
From: Tom Hammond n...@embarqmail.com
To: Jim Miller KG0KP
Is there a significant difference between the 465 and the 475?
K4GM- George
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Depends on your definition significant.
I had both in a shop and both preformed well for almost all applications. At
DC, audio or video they were virtually identical. At high speed data in the
10 to 150 mbs range the 475 was preferred. RF over 50 MHz the 475 was
better.
The 475 has slightly
Looks like Jim got the info he needed. Lets end this thread for now.
73, Eric WA6HHQ
Elecraft Moderator, and Dayton surviver.
Jim Miller KG0KP wrote:
Thanks everybody on the Tek 475 info. I use Google for a lot of things -
why don't I think of it in a case such as this ??? Old age gets
I am buying additional HC-49/U fundamental frequency crystals for my XG1 and
XG2 for 160 and 10M.
Two questions - Will I need to add a series cap with the crystals as the XG2
does for 40 and 20M? If so, how do I figure out the value?
Tnx
N2TK, Tony
Glad to see this new feature.
Any chance there will be 70 cm and 23 cm in the future ?
Thanks,
Frank PA2ABC
wayne burdick wrote:
See you at Dayton :)
73,
Wayne
N6KR
http://www.elecraft.com/manual/W2%20Data%20Sheet%20rev%204sm.pdf
Hi all,
I'm playing around with writing a control interface for the K3 in
Ruby, and am currently working on the low-level interface
classes.
Mostly it's all going well, but I do have a few questions about
the Text To Terminal functionality. I'd like to be able to use
the interface classes to
I could do surface mount, I would think some aspects of it is easier, but
its hard to see the values on some through hole parts in the k2, and
figuring out what parts go where in something like a K2 kit would NOT be fun
I think
I almost needed a microscope for some K2 parts as it is...
I dont think SMT is that bad, then again I am young, when I brought
this up to a ham I met at FDIM he told me he is blind in one eye and
has more than 3db on me in age, so there are no excuses, its like mike
fright but with building, just try them sometime. I find smt is easier
to work with than
On Thu, 2009-05-21 at 22:39 -0400, Matt Palmer wrote:
I dont think SMT is that bad, then again I am young, when I brought
this up to a ham I met at FDIM he told me he is blind in one eye and
has more than 3db on me in age, so there are no excuses, its like mike
fright but with building, just
I recommended a while back that there be a mode where the RX text comes
back as the TX text command in 16-byte packets (which I think is the max
for the KY send command.
KYCQ CQ DE WA5ZNU;
You might take a peek at the Python library I did; also, I have plans to
update it to use the fldigi
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