Two approaches to dealing with transmission lines that have been of great
help to me at various locations in substantially reducing or usually
eliminating RFI when using power at HF or VHF are:
Coax - Bury as much of the run as possible, as deeply as possible,
although even a few inches down is
Hi Group,
I'm just at the Test and Alignment Part II Stage on my Second K2.
Up until now, all smooth sailing.
On doing the PLL Ref Oscillator Test however, I come up with 12.100.48
kHz for the high frequency and 12.091.64 for the low, giving me a range
of 8.84 kHz..which, according to the
Hi All,
Here is the results for the 2004 Fall NJQRP Homebrewer Sprint.
Look for the next Homebrewer Sprint on USA Sunday evening
on March 28,2005 UTC. Additional info is planned on the
NJQRP website and/or future Homebrewer CD.
I hope all enjoyed the sprint!
72 de Ken [EMAIL PROTECTED]
[CC'ing to Service(Gary) per Ron's suggestion]
Ron D'Eau Claire wrote:
About the yellow vs. orange color coding, I don't know if Elecraft even
stocks a 3.7 uH inductor in that size. If they do, I guess it's possible
there was a switch.
At last, I have compared L7 with L10 as you suggested
Tim,
Those are 'vias' and they conduct the circuit path(s) from one side of the
board to the other. Quite common on double sided boards.
73,
Don W3FPR
- Original Message -
Hi folks -
Between the torroids and the relays on the right side of the RF board are
unsed holes right at
Well, it sure was fun to exercise the K2/100 on top band over the
weekend. It was a challenge to get my homemade Italian antenna tuner
(it looks like a plate of spaghetti) to deal with the inductive
reactance of my newly shortened antenna (142 flat top, center fed with
open-wire line), but,
Hello everybody!
Bottom line is, KX1 #978 passed Alignment/TP III yesterday afternoon!
8-) As usual, some random thoughts on the last step:
-toroids are easy, if you only consider inductors: transformers are
altogether another beast! 8-)
-another tricky point is wiring the battery
David
I had the same experience but with just 10W and an ~ 1/30th wavelength
vertical with no radials I can understand a few repeats being required !
What was fun was the 20 QSO's / 14 states and 1 Canadian province in about
an hour total operating time during the contest.
Obviously a lot of
I'll second the K-RCV if I can use it with the little transmitters
that I like to build so much. AMEN.
de RC kc5wa
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I'd buy an Elecraft general coverage RX in a snap!
73 de Mike, W2VD
Hello Elecrafters!
This seems to be a repeating theme for me.
How about Wayne and Eric design a full coverage (.5-30 Mhz) receiver based
upon the designs of the K2 and KX1. I know I'd want one (at least one).
What's
Yep,
Count me in!
Tony W7GO
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Help:
Fellow Elecrafters,
Count me in if a receiver kit were to become a reality
Jack KA1QG
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Anybody else having difficulty with this firmware upgrade?
the utility installed correctly
With the DL switch set I can query the KRC2
and get the following response
;KR00;KR73;KRV;KRV KRC2 V1.0;
when I try to upload the firmware I get an error after which time I have
to power cycle the krc2
Let me build you a K2. I have built 80 K2's and all of the other Elecraft
kits. My prices are
reasonable and you will receive a brand new K2, built and ready to play.
Email me at [EMAIL PROTECTED]
73
Alan
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Hello!
I use a lot RX ANTenna with my K2. Has anyone made or thought about RX ANT
indicator to show when separate receiving antenna is being used? A led shining
when RX ANT is ON?
73 de Jukka, OH4MFA
K2 #4293
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Expire 31-Dec-2006. $10 mailed to your QTH (CONUS only).
Amazing, the stuff you find when you clean out desk drawers... ;-)
--
73, Rod N0RC
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Dave
Worked 31 stations in 15 states and VE5 with my FT-817 and special 160m
antenna. I feed the center conductor of my coax feedline from basement to attic
tuned with my ATU. Guess I need to install the 160m option in my K2. I did
notice that the FT-817 roofing filter will not eliminate
8.84 kHz os OK.
73, Eric WA6HHQ
Glenn McNeil wrote:
Hi Group,
I'm just at the Test and Alignment Part II Stage on my Second K2.
Up until now, all smooth sailing.
On doing the PLL Ref Oscillator Test however, I come up with 12.100.48
kHz for the high frequency and 12.091.64 for the
8.84 kHz is OK.
73, Eric WA6HHQ
Glenn McNeil wrote:
Hi Group,
I'm just at the Test and Alignment Part II Stage on my Second K2.
Up until now, all smooth sailing.
On doing the PLL Ref Oscillator Test however, I come up with 12.100.48
kHz for the high frequency and 12.091.64 for the
Hello David,
Don't forget that contest software always give you 599 even when your real RST
is only 239.
When you are looking for real RST it is better to test your antenna when there
is no contest running.
Best whishes,
Jan - on4aeb
- Original Message -
From: David A. Belsley
Hi Brendan,
A couple of questions:
1. Were you using the new V1.2 download hex files from the web page? If
not, and you were using earlier ones sent out by Jack, they will have
too many records and can cause this error.
(If the earlier hex files, with too many records, were sent by a dumb
Eric Swartz - WA6HHQ, Elecraft said:
Hi Brendan,
A couple of questions:
1. Were you using the new V1.2 download hex files from the web page? If
not, and you were using earlier ones sent out by Jack, they will have
too many records and can cause this error.
I am using the Hex file from
Hi folks -
I just completed the RF board and am doing the resistance checks on page 71.
For Q7 base it requires 2.5 - 3.0 k. My DVM onky meausres .4 ohms - no where
near 2300 - 3000 ohms. I assume this means I have a short. There is no short
between the soldered pads on Q7 and I rechecked
I have two KRC2s, and had similar problem with both. Could not get
either to report fw rev, and when trying to download I would get a no
response error. The fw that was in both of them was 1.1D5 .
I used HyperTerm to download, and everything worked fine. On one of the
units I had to put it
Tim,
Yes, the resistance should be between 2500 3000 ohms. As you say a short
on Q7 itself should be obvious, so if nothing looks bad, then after having a
look at the schematic a good place to look may be around T4. There is a
ground connection to winding 3-4, so a short around here to winding
Try taking off the heat sink, i.e. unmount the transistor, and then measure
the resistance again. This will determine if the mounting has introduced
the short. DO NOT USE THE STAR WASHERS. One of the options indicates this
but it is not in the manual yet. I had the same problem and found a VERY
I would snap one up too!
And just to throw oil on this fire; what do you all think of an Elecraft
hand-held 6m, 220, 2m kit?
What do you say Erik, Wayne?:-)
Sylvain
VE2SQX
- Original Message -
From: Lonnie Juli [EMAIL PROTECTED]
To: elecraft@mailman.qth.net
Sent: Sunday,
You are right.it is a repeating theme.it comes up every few months. I
brought it up myself once. So far as I remember( I could have missed some) ,
never any comments/response one way or the other from Wayne and Eric My hope
is they are listening and working on it and will eventually
Don Lerche was right and I thank him so much! Although I could not SEE
the short I disconnected the T4 windings one by one until the Q7 base
resistance shot up to 2.6k. Then I resoldered one by one - measuring Q7
after each new solder joint. Finally I redid all of the page 71
measurements and
I just cannot figure out why ICOM has fallen into a world where they
have no shame. All of that hype concerning the 756ProIII and it
is not really an improvement over the ORIGINAL 756Pro. The 5 Khz numbers
are just plain awful.
http://www.elecraft.com/K2_perf.htm
Bob
N4HY
I'll third a K-RCV for the same reason - 72 Bruce.
72/73 - Bruce ve5rc/ve5qrp - I believe in the KIS principle.
** Enter QRP-Canada's RUN with RAC contest -
details at http://www.qrp-canada.com **
- my ignorance is my bliss my inspiration. :-) -
Even though I have a Collins R-388 that I use on AM, I would also purchase a
receiver immediately.
Phil K2 KX-1
Philip LaMarche
LaMarche Enterprises, Inc.
www.instantgourmetspices.com
727-944-3226
(800) 395-7795 pin 02
Cell 727-510-5038
FAX- 727-937-8834
N.A.S.F.T # 30210
W9DVM
--
Hofolks -
:-) Number #4667 (sans SSB and any other modules yet) is on the air and
appears to operate fb. Still blows me away to hear that first signal
pulled out the air into this little box of parts I just glued together!
I love it!
As usual Gary Surrency was a model of patience. I was
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
Hello,
Just worked YU7GMN on 7002.7 MHZ @ 01:30 UTC with 5 watts.
72 and Thanks,
Ron Polityka
WB3AAL
www.wb3aal.com
www.n3epa.org/
K1 - SN 01011
K2 - SN 01392
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Built or unbilt. Please reply offline.
Tnx,
Lou - W6UR
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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.
Hi Slater,
I use the original Rigblaster interface with my K2 and Heil Pro-Set Plus. I
chose the Elecraft K2 wiring standard. Since I change between dynamic and
electret condenser microphones (MH-2 and Pro-Set) I install my resistors now
in the mic plug shell, not in the radio, and +5V is
From: Chris Page [EMAIL PROTECTED]
Date: Sat, 29 Jan 2005 23:04:44 -
I have just built the KDSP2 and everything seems to work properly,
including the clock and changing the filter frfequencies.
However, the red LED remains on. I have checked U1, D3 and that the
DSPx module is
I have downloaded the FCC's Amateur Radio Database. It came down as 1 ZIP'd
file and expanded into 9 dat files. I would like to put it on a CD and use
ACCESS to search it but I need some info about the files and how they are
structured. I used FTP and searched around on the FCC's drive but I
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