IMHO you can try with a bolometer, wich is a milliwatt-meter, an some good
attenuators capable of handle the power levels that you are going to use...
An HP432A is a good instrument that you often find on ebay for less than
200,00 USD (thermistor head included).
If You are going to do some serious
I waited a while to ask these questions, as I thought they might be in
the FAQ.
What sort of antenna configurations will the T1 work with? Will it work
with short whip antennas, such as you would use pedestrian mobile? How
versatile is it compared to the KAT2, which seems to be able to match
On Wed, 2 Mar 2005 [EMAIL PROTECTED] wrote:
Ladies and Gentlemen:
Another K2 is on the Air. This one SN# 4728,
Congratulationsyou might want to add it to ther Elecraft Online Owners
Database at http://www.zerobeat.net/qrp/k2data.html
73,Thom-k3hrn
www.zerobeat.net Home of QRP Web Ring,
On Wed, 2 Mar 2005, Jim Sheldon wrote:
Yeah, but that looks tacky hi hi. The K2 is more elegant than that. Buy
yourself one of those finger dimples. It looks good on the knob, and once
you get used to it, makes speed-tuning a snap.
Use of the rubber band helps promote the Mojo back to
Hi Julian:
What sort of antenna configurations will the T1 work with? Will it work
with short whip antennas, such as you would use pedestrian mobile? How
versatile is it compared to the KAT2, which seems to be able to match just
about anything!
I'm Field Testing the T1 as I write this
Hello List:
K2 SN: 4761, my fourteenth K2 to build, has passed Part II testing and working
great like all K2's. Now on to complete the last Part and install all the
accessories that have already been built. Johnny, KD4ORO, the owner, will be
operating it by the middle of next week for sure.
I have a light blue broccoli-band on my K2 and I like
the dash of color it adds. Decorative, functional and healthy too.
73/ Bob - W5BIG
- Original Message -
From: Thom R. Lacosta [EMAIL PROTECTED]
To: Jim Sheldon [EMAIL PROTECTED]
Cc: 'Elecraft Reflector' elecraft@mailman.qth.net
Sent:
Just a reminder that ECN will be this evening (Thursday).
30m: 7E/6C/5M/4P (z) on 10115
40m: 8E/7C/6M/5P (0100z) on 7045
Some info about checking in to the net can be found here:
http://briefcase.yahoo.com/aa0ni
I'd also be curious if there would be any interest in attempting another 30m
So far I haven't found anything wrong as such on #3764:
The LPF components appear fine (value and condition), and check out ok with
an MFJ analyser for SWR on receive.
T1 and T2 and associated components appear ok. One thing; C83 is 1000pF,
not 1200pF as per circuit. However I tried
Fraser,
This is a very very long shot and probably daft! I see that the current
drawn on 160m tracks that drawn on 80m until the RF output passes 80w.going
up.From this I think that it is safe to say that the bad KPA100 is working
as it should to that power output level. Above that it is either
I also have brocoli band, but when I push the PA and the rig gets a little
warm, the aroma makes me hungry!
tom, wb2qdg
k2 1103
-- Original message --
From: Bob - W5BIG [EMAIL PROTECTED]
I have a light blue broccoli-band on my K2 and I like
the dash of color
Just to add that K2's 4604 and 4605 are now active.Yet
to work other Elecrafts on the air!
G4YCS
Ian
York
___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub
Elecraft # 4775 is in the process of being built. First HF radio for me,
looking forward to the fun.
73's
Dan KD7ZFV
___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
You must be a subscriber to post to the list.
Subscriber Info (Addr.
A question on Toroid's.
I am about to start mounting toroid's on the RF board. The question is:
Do I mount them flush to the board or raise them up, if raised up, all of them
or only certain ones?
73's
Dan KD7ZFV
___
Elecraft mailing list
Post to:
On Mar 3, 2005, at 1:37 AM, Julian, G4ILO wrote:
What sort of antenna configurations will the T1 work with? Will it
work with short whip antennas, such as you would use pedestrian
mobile? How versatile is it compared to the KAT2?
Hi Julian,
I'll add your question (and the answer) to the
Fraser Robertson wrote:
One thing; C83 is
1000pF, not 1200pF as per circuit. However I tried padding that with a
220pF SM and it made no difference. Looks like 1000pF was supplied with
the kit.
Hi Fraser,
The change from 1200 to 1000 was made after the field test. It improves
On Wed, 2 Mar 2005 20:45:11 -0500, Bill Coleman wrote:
On Mar 1, 2005, at 5:07 PM, [EMAIL PROTECTED] wrote:
I use my K2 on CW and SSB. I was wondering how K2 Hams would feel about
different grades of SSB adapters.
I've voiced this several times, but I'll reiterate.
I think the KSB2 is a
Thanks Geoff, the TR bias HV is 139V on RX. On TX at 70W out it's about
118V on 160m and 80m. With power flat out it's 113V on 80m and 109V on
160m. So I think that's ok.
The voltage on U7B pin 5 and 6 is identical on 160m and 80m at full power at
675mV, so I think the PA bias current is
Any suggestions for antennas to use for a KX1 from a vehicle? Any
experiences folks have would be helpful...72, Ci
Ci Jones
WU7R
FISTS 10789
NAQCC 306
___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
You must be a subscriber to post to
On Mar 3, 2005, at 9:59 AM, [EMAIL PROTECTED] wrote:
Any suggestions for antennas to use for a KX1 from a vehicle? Any
experiences folks have would be helpful...72, Ci
Hi Ci,
Operating at 4 watts with a short antenna is a challenge (and loads
o' fun, pun intended). You'll want to use the
Ci,
For me, the KX1 is about fun and spontaneity. I don't have a Texas
Bugcatcher on my car, but I want to be ready to operate when I have 20
minutes or so. Here are two setups I use:
1. I keep a few continuously-loaded stick antennas (both small sized
Lakeview Hamstick and bigger sized
I use any well made mono bander. I keep extras in the trunk as I don't mind
changing them when changing bands. This eliminates the need for tuner, and
costs much less overall. (20 dollars each for two or three bands).
Make sure (goes without saying) you have a good ground to the chassis as the
Hey all you VE's,
I realize this is off topic, but I need some information.I am going to
drive to Ontario next week on business and I have my mobile rig in the
car. I didn't intend to operate it, but can I bring it along and bring it
back in? I hate to take it out; it's such a hassle
Yes, you can take it along.
You should, however, take it in to US Customs at the border crossing and
have it registered on a Customs Form 4457. That will show that you had
it when they looked at it! And, when you return to the US and the
Customs person at the re-entry point asks what are you
On Thu, 2005-03-03 at 13:30 -0500, Charles Greene wrote:
Hey all you VE's,
I realize this is off topic, but I need some information.I am going to
drive to Ontario next week on business and I have my mobile rig in the
car. I didn't intend to operate it, but can I bring it along and
Actually.. you will have an issue. K2 is an official registered
brand used on cattle from a particular ranch here in AB. It is
registered with US customs at all border crossings. If the radio is less
than 32 months old you might get it back in, but theres really no
guarantee.
VE6IV
Brian
I would like to know more about using a switching mixer for the BM.
If the circuitry does not get too complex or introduce problems it would
be worth trying. Please let me have more information.
73
Stewart G3RXQ
Imagine that you apply audio to a transformer that has a center tapped
I have been back and forth several times and merely told the fellow at
border I had a ham radio. I always had my license handy but have never been
asked about anything else.
How come your not going to operate, if I may?
73
---
Chuck AA8VS
Linux is only free if your time is worthless.
Thanks to all who responded to my question on toroid's, all have helped.
73's
Dan KD7ZFV
___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
Tim O'Rourke wrote:
I have never seen an article abt a cell phone cataching on fire but I
guess it probably happens.
You can add explosions to the hazards associated with cell phones.
Federal safety officials say they've received 83 reports of cell phones
exploding or catching fire in the
Hello to the group
Just a few minutes ago I finished alignment and test part I for my brand
new K2 with S/N 4726. Everything went right first time with no trouble
at all. When assembling the tilt stand to the bottom cover while I was
doing pressure to set the second oval foot the screw slipped
Hello Elecrafters,
Just a quick note of succes. Finally getting around to completing my
K2 and a high efficiency linear power supply took a bit longer than
anticipated, even though I haven't put that many hours into the
project. The only real trouble encountered during building and
Hi
Touch up paint is available from elecraft see spares
Mick m1mgd K1 #01532K2 #?? still in transit
___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
You must be a subscriber to post to the list.
Subscriber Info (Addr.
-Original Message-
Reading the mail here about the mods to the SSB Module...I remember that
someone was playing around with some shielding to cut down on blow-by or
something like that. What ever happened to that? I think it was a person
in England who was experimenting with shielding on
-Original Message-
The first step is to be sure that C70 and C71 in the VCO area have the
shortest possible leads. Then the last step in that segment is to remove
C70. This seems strange. Is this the same VCO C70 that we just snugged
down in the first step?
-
The application note
That should not be a problem. Trademarks are product category specific.
A 'K2' trademark for cattle will not be in the same category as the 'K2'
tm for Radio Equipment. :-)
73, Eric WA6HHQ
Kirby Nesbitt wrote:
Actually.. you will have an issue. K2 is an official registered
brand used
If anybody wants more info on DBM'S and MMIC's(better than any op-amp)
Try www.minicircuits.com
___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub
Fraser,
If you have a 'scope handy, try cranking the power up to 100 watts on 160
and 80 and observing the CW envelope - if you see what looks like weak
modulation on the top and bottom of the envelope pattern, you have a low
frequency oscillation. If you do have that oscillation, the 'cure' has
TNX FER THE INPUT ON THE MODS I WOULD LIKE TO DO ON THE SSB ADAPTER.
It seems that many want more audio punch, better Vox, and variable audio
frequency response on TX.
Indeed the SSB adapter is a bargain for $89. However I wonder if some
would pay
$150 or $200 to have the SSB Tx of a
A few days ago somebody was asking who it might be who's been experimenting
with shielding on the KSB2 board. I was that guy I suspect, because nobody
else I've observed on this net seems to be as annoyed as I about the bad
skirts, high ripple, bad ultimate selectivity, etc. when the K2
Merlin, W3ICT wrote:
...nobody else I've observed on this net seems to be as annoyed as I about
the bad
skirts, high ripple, bad ultimate selectivity, etc. when the K2 is used
with the
KSB2. ...On sideband, tight skirts (the electronic kind, gentlemen!) are
terribly
important, maybe more so
~~
N2CQ QRP CONTEST CALENDAR
March 2005
~~
40 METER FOXHUNT - Each Friday, 0200z to 0359z
(Thurs 9 PM to 11 PM EST) (Ends Mar 18, 0359z)
Info:
Several have emailed me requesting the answer to my previous question on how
the toroid's should be mounted, so here goes.
With the exception of T2 on the RF board, which should be 1/16 of an inch off
the board, the rest should be flushed mounted as tight as possible.
73's
Dan KD7ZFV
Thanks
I started the net on 10114 after hearing some weak signals on 10115.
There were 5 check-ins on 30m. It seems like I must have a tunnel to Michigan
tonight because 4 of the 5 were from there.
NA8M John MI [579] K2/100
AB8KJ Chuck MI [589] K2/100 #2596
WA3TUU Rick MI [559] very weak at
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
Finally, everything is fully working
One more time... if you are not in a good mood to build leave it
there as is but when you feel OK... GO GO GO !!!
Thanks to Don for his advice...
73
===
Jean-François Ménard / VA2VYZ
Elecraft K2 #4130 / KX1 #999
You can use the Hustler spider attachment and put up to three coils on the
same antenna - I've seen it done with as many as five bands covered.
General rule is the higher you can get the coil the better. The down side
is the higher the coil also put the weight up high and you may need to guy
Lou will you take $50 and what method of payment do you prefer PayPal ,
Money Order, etc.?
Lou Roux wrote:
Buyer backed out so I still have for sale the above.
Given to me as a gift but since I'm 99.9% CW I don't have a need for
them. These items are new, the mic has had only a few words
We designed the KDSP2 to improve ultimate SSB filter ultimate rejection
in the K2.
The KDSP2, with its brick wall SSB filter settings, when cascaded after
the KSB2 filter, totally eliminates any residual leakage from strong
signals outside the passband. It also tightens the net filter shape
OK Eric... I just picked up my radio used, and I haven't checked the
alignment yet... this was just an impression I had. I'll put it on the
bench and make some measurements before commenting further.
Larry N8LP
Eric Swartz - WA6HHQ, Elecraft wrote:
We designed the KDSP2 to improve ultimate
Took a walk throrugh Radio shack today and they had a digital soldering
station for about 69$ in stock
also has a ESD set with mat and hand strap for 25$ (I bought this one)
May be worth a look if you need the stuff now.
George NE2I
___
Elecraft
Only a test.No virus found in this outgoing message.
Checked by AVG Anti-Virus.
Version: 7.0.300 / Virus Database: 266.5.2 - Release Date: 2/28/2005
___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
You must be a subscriber to post to the list.
To the OM that wanted to test his elecraft net connectionur 599 hi hi
___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
Just purchased the T1 tuner and computer interface. I see that some software
will let you mix rigs.
I would use my 125W Pegasus for TX, and the K2 for its excellent RX.
Anybody else found a good rig to use with the K2
___
Elecraft mailing
Hello,
I finally finished the page for the EPA QRP Club Polar Bear Moonlight
Madness Event in Feb. 2005.
Click on the links for pictures from that night.
Enjoy the reading and look for us in March around the full moon.
72
Ron de N3EPA
EPA QRP Club El Presidente'
[EMAIL PROTECTED]
Guys,
Thanks to all who replied to my post on the Rubber
Knob. Let me do some looking and I will report my
results.
Thanks in advance,
Dave...
=
Dave...
__
Celebrate Yahoo!'s 10th Birthday!
Yahoo! Netrospective: 100 Moments of
It's what I used for K2 #3421 almost two years ago. Both are ESD safe - just
have to use an extra wire with banana plugs betwen the matt and the soldering
iron to get everything at the same potential. I have had no trouble at all with
any of the ESD sensitive devices in my rig (although, I did
You may have just sold me on a KDSP2 down the road Eric. I just ran some
tests on my new used K2 (#568), and to cut to the chase... I measured
ultimate rejection out 5 kHz as 80dB with the KSB2 OP1 filter in, better
than you indicated. But with FL2, which is set for 1.8 kHz, I measured
Hi there,
I want my RIT to be +/-600Hz like in the K2. C7 has to be changed, to be
smaller, says the manual. But how much smaller? Any idea or do I have to
try?
Thanks
Gerhard Schwanz
DH3FAW
mailto:[EMAIL PROTECTED]
http://www.gs-personal.de
Hi Larry,
OP1 is the KSB2's SSB fixed b/w filter, which has been optimized for
minimum ripple at one SSB b/w. In SSB it is always used for transmit,
but it or any of the CW filter bandwidths can be used for receive. Looks
like you are using one of the CW settings at 1800 Hz..
Any of the
Oops! - I missed one point in your email. Yes, the above board mounting
of the KSB2 reduces ultimate rejection due to its longer ground return
paths. But as you noted, with 80 dB of ultimate rejection, following it
with the KDSP2 kills any residual blow by.
A number of the $3K and above DSP
After having fingers burnt while designing very 'srtrong' receivers, may I
add comment.
IF filters with very tight skirts do allow the recovery of very good SSB
audio or CW. To do this the filter must NOT have sharp corners at the top of
its 'response', the corners should be a little rounded.
Eric wrote:
The SSB OP1 filter can be used with different
BFO settings in each of the four SSB filter memory settings, creating
low and high cut settings.
I installed the mod kit to widen my OPT1 filter and I'm really pleased with
it. Listening to AM stations, the K2 sounds as good as most any
Hi to everyone,
K2 s/n 4787 was received yesterday (3/2/5) at about
1:20pm via UPS. At about 15 hours into the experience
I have the control board and front panel complete and
just starting the RF board. Several comments.
How did they squeeze all that into one box!
On the control board I
You look at the TS-870, 746pro, and many other DSP rigs all make the same
stupid design flaw.
Dual conversion DSP! No multiple pole xtal filter.
No computer algorythm can emulate a multipe pole IF filter. These are your
$2000-$3000 rigs
The TS-850 had dual xtal IFs. However there was
Jim, AB0UK, wrote:
I'm inventorying each board as it is begun. ... At this point capacitors
for the RF board are a wild blur. I'm sure I have not correctly identified
at least a third of them. Many numbers on the caps are simply not in the
parts list. If anyone has a good way to ID them I
Jim Harris wrote:
On the front panel board while trying to add SSB
components after the fact I managed to slightly burn
the edge of a push button. Wish the instructions had
mentioned to put the low SSB components in before the
higher and vulnerable parts were added.
Having just been through
Haw Haw!! And I thought I was then only one who did things like that!
I once looked for a part for two days. It was sitting on my workbench,
more or less in plain sight, the whole time.
- Jim, KL7CC
Ron D'Eau Claire wrote
snip Today I lost entire whole circuit board assembly for my
68 matches
Mail list logo
