[EMAIL PROTECTED] wrote:
When I took my general in 1961 at the LA Federal Building, I had to
draw a schematic of a Colpitt's Osc.
They weren't specific if it had to be solid state or Vacuum tube, so
I drew the solid state version I thought I knew best.
WOW, solid-state in 1962? Now that's
To hell with a PhD, how about 17yrs using Perl with 38 yrs in IT (and about
15 of those with Fortran)!
Sure I'll help - mail me directly with your questions.
Actually, that goes for anyone who wants such help.
On 7/7/07 07:25, [EMAIL PROTECTED]
[EMAIL PROTECTED] sent:
Message: 21
Date: Fri,
If your serious (I'm not familiar with FCC exams) - why?
What good does filling your head with bits of info that you don't need to
remember do - and what does it prove?
Like my Collage electronics exams back in the 70's - why do I need to
remember all these complex formulas (hfE calc etc) ? I'll
Hi David
I do not see any problem, at least for R6, 7 and 8.
You have an M 10 db attenuator and mesuring R6 or R8 you have 100 ohmswith
168 ohms in parallel. So the result should be 62.68 ohms on you DMM!
R7 is 68 ohms with 200 ohms in parallel so you should have 50.74 ohms!
So as the series of
In a message dated 7/7/07 12:10:10 AM Eastern Daylight Time, [EMAIL PROTECTED]
writes:
I remind people that before the FCC became involved,
there was no test.
No, that's not true.
Mandatory testing for radio licenses in the USA began in 1912.
The FCC began about 1934. In between, radio
After using my K2 for its first Field Day, I now see a reason to install
the KBT2 built-in battery. But, I particularly liked using solar power
-- a 10-watt panel running through Don Brown's solar charge controller
to a gel-cell battery in parallel with the radio while operating. Worked
really
Need to do some signal tracing on my K2. The xmit is not working correctly. I
need either the completed RF probe or the 1N34A diode shown in the manual for
troubleshooting. My local radio shack does not carry the diode. Buying online
would be very costly for one diode.
I built this around the
Anyone have a KDSP2 that they have decided they don't need and would
like to sell? If so please send details to include price shipped to zip
45324.
Thanks
Tim
Nz8J
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Hi
The resistor and diode in the KBT2 limit the charge current to the internal
battery but really do not prevent overcharging. If the input voltage to the
K2 id about .2-.3 volts greater than the float charge value of the battery
(13.8V) then all is well but if the voltage is higher you may
Test send.
[EMAIL PROTECTED] wrote:
Need to do some signal tracing on my K2. The xmit is not working correctly. I
need either the completed RF probe or the 1N34A diode shown in the manual for
troubleshooting. My local radio shack does not carry the diode. Buying online
would be very costly
Thanks to David, Don and Gary for making me feel better this morning
about my resistors.
I have been testing each prior to installation but when came to that
group, got lazy and decided to only check them AFTER
installation...which then made me wish I hadn't gotten lazy!!! Great
object
On Jun 27, 2007, at 6:59 AM, Bill Tippett wrote:
In rigs like
the K3, ultimate selectivity is determined by the DSP
filters which will have excellent shape factors. In
DSP rigs, the most critical area of a roofing filter
for it's intended purpose of IMD performance is down
to about 30 dB on
Peter,
Yes, the solar controller must connect directly to the battery.
Take a look at the Using a SmartCharger with the K2 Internal Battery
article on my website http://w3fpr.qrpradio.com to see how I made a
direct connection to the battery (I highly recommend that the connection
be fused
At 01:12 PM 7/7/07, Bill Coleman wrote:
On Jun 27, 2007, at 6:59 AM, Bill Tippett wrote:
In rigs like
the K3, ultimate selectivity is determined by the DSP
filters which will have excellent shape factors. In
DSP rigs, the most critical area of a roofing filter
for it's intended purpose of
While Don Brown has offered an alternative to increase the voltage of
the controller, I would not recommend doing it that way - what you end
up with is a solar controller that is specifically modified to use with
the K2 only.
I would want the solar controller to work with any 12 volt Lead
I have a RF probe. However I am not sure it is working. It did not seem
to work at the first test point I tried. Is there someplace in the K2 on
the receive side I could test it? My problem appears to be in the send
side. This obviously would eliminate some problems if it worked.
Gary WA4SZI
Gary,
Elecraft offers the RFPROBE kit for $10. That may be better than making
a special order to Mouser or other supplier - BUT, a ham who does any
building at all should be able to order a list of parts from the 'wish
list' and place a sizable order, making the shipping a small percentage
Gary,
Turn your manual to the Troubleshooting Appendix - look at page 10 near
the end and you will find the PLL and VCO circuits will provide you with
some checks for your RF Probe.
73,
Don W3FPR
Gary Montalbine wrote:
I have a RF probe. However I am not sure it is working. It did not seem
I have a different perspective on the code requirement...
I was really into Heath Kits when I was in h.s. (~1977). I _so_ wanted to
get my Novice license; however, I didn't have an Elmer. I would look at the
Heath catalog dreaming that some day I would. I tried learning the code by
myself (as
Don and Don are more qualifued than I am to answer this, and they
already have, but I wanted to point out another option. With the KBT2,
the 10W panel may be too big, and you can use a 5W solar panel and the
KBT2 without a charge controller *if* the K2 is on and the current draw
is about the
In a message dated 7/6/07 8:44:45 PM Eastern Daylight Time, [EMAIL PROTECTED]
writes:
I took my tests in 1980 under a
steely-eyed FCC examiner, and they were multiple-choice back then.
I took mine in 1968 and 1970, and the written exams were all multiple choice
then, too. Novice to Extra.
-Original Message-
From: Dave Van Wallaghen [mailto:[EMAIL PROTECTED]
Sent: Saturday, July 07, 2007 11:21 AM
To: 'Peter Wollan'
Subject: RE: [Elecraft] K2 - KBT2 and solar power?
Another suggestion in regards to providing the fused connection to the KBT2,
as recommended by Don Wilhelm,
Thanks all for the response. My RF probe works at TP1 and the PLL and
VCO circuits. U8 was where I had no voltage and was unsure of the probe.
Need to check further.
Gary, WA4SZI
Don Wilhelm wrote:
Gary,
Turn your manual to the Troubleshooting Appendix - look at page 10 near
the end and
If you would like to work a K3, K7S cqing on 14.060Sounds like a
K2, only a little better,HI.
John
k7up
K2's 2012, 2223
K1 637
Things are more like they are now then they've ever been before.
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Gary,
I must be misreading something or you had a typo. RF Board U8 is a
voltage regulator - you will not find any RF there.
73,
Don W3FPR
Gary Montalbine wrote:
Thanks all for the response. My RF probe works at TP1 and the PLL and
VCO circuits. U8 was where I had no voltage and was unsure
I was thinking (dangerous activity and very difficult at my age) about
the K3 Panadaptor/Band Scope.
I realize the Panadaptor is downstream (2008?) and these questions may
have already been broached and are in the archives but ...
1) I wonder if it would be possible to mount the Panadaptor as a
Thanks for all the responses. I guess I could run a battery charging
cable out one of the unused holes -- not perfect, but certainly usable.
(I'm not willing to drill another hole). It seems to make the
diode-resistor arrangement in the KBT2 irrelevant, though, particularly
since my normal power
Does anyone know if you can use the K1 backlight kit (K1BKLTKIT) to backlight
the Wilderness Radio KC2 display?
dt
.
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David,
I'm pretty sure I didn't use a transflective LCD in the Wilderness KC2
design. You could check by trying to shine a light through it. If you
can't see the light, it's strictly reflective and won't work with
backlight.
You could attempt to edge-light it with an LED aimed at the left
Doug Smith wrote:
The first time I took the 2nd Telegraph my steely eyed examiner was a
very nice woman (Seattle office). I showed up to take the exam with an
electronic keyer and she laughed at me and said I could set that aside
and use their hand key if I wanted to take the exam.
I've
Basic problem was engage mind before typing. High DC voltage at U8 and
no RF voltage at pin 4 of U10. Low RF voltage at pin 6 of U9. Wanted to
make sure my RF probe was good before continuing. It has been many years
since I have messed with electronic circuits.I may be back at the Novice
Hi,
I got on this list a few weeks ago and asked about K2s. I have a used one
coming with a lot of options, but 100 watts NOT being one of them. It is CW
only, which is fine, as I am about 95% CW these days. It is an older one.
The SN is in the 22xx region, but has all the updates.
I
My KX1 just arrived in the mail. I am getting ready to put it on the air in
just a few minutes.
Many thanks to Don W3FPR for not only offering to trade for my FT-817, but
also for doing such a loovely job building the KX1!!
72
Chris NV9Z
Hagerstown IN
Yes, I remember Mr. Cigar out of NYC very well.
In late 1966 (or Jan 1967?) I approached the NYC Federal Bldg with my
mom (I was 14). There was a female guard/receptionist just inside the
entrance. She looked at me, my mom, and said, Here for your FCC
test? and told us the floor - which I
As one of those asking what I'm certain are very basic questions
which seem obvious to those with eon's of experience, I would like to
present an alternate point of view to consider.
While the grizzled experts who can absently tap code on the bartop
without realizing it may want to look
My K1-4, s/n 02258, built for 40,30,2015 worked for 9 mos, until today.
Now there is no output, no signal received on 20 meters. The K1 functions
fine in every respect on 40,30,15 bands. I noticed last few days that the
audio on 20 was sometimes weaker than usual. 20 meters is open here,
Gary does not work weekends, and you can likely have it isolated by then.
If you have no output from U10-4, then how about the input at pin 1?
That should be the BFO signal fed to the transmit mixer. (you do have
the KSB2 plugged in correctly do you not?). The only other signal that
must be
Don Wilhelm wrote:
Gary does not work weekends, and you can likely have it isolated by then.
If you have no output from U10-4, then how about the input at pin 1?
That should be the BFO signal fed to the transmit mixer. (you do have
the KSB2 plugged in correctly do you not?).
Pin 1 also
On the 23rd 24th of June 2007 Eric declared an END OF THREAD for this.
http://mailman.qth.net/pipermail/elecraft/
toby
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I had to get a new 2nd Telegraph a few years back and the FCC
gave me 20 WPM credit -- not for having had a prior 2nd Telegraph
but for having had an Amateur Extra since before 1980-something!
But the FCC accepting a ham 20 wpm test result, even one from the 1950s, as
qualifying one for the
Toby Deinhardt wrote:
On the 23rd 24th of June 2007 Eric declared an END OF THREAD for this.
http://mailman.qth.net/pipermail/elecraft/
toby
Yep, for some reason Bill responded to this almost 2 weeks after my message. I
avoided further comment, knowing I would get blamed for it.
All this reminiscing reminds me of an
excellent book I recently finished, Bill Dave by
Michael Malone. It's the story of Bill Hewlett and
Dave Packard, founders of Hewlett-Packard. It's
so well written I nearly read all 400 pages in
one sitting and because I was privileged to work
I took my Novice exam in late 1952 and General in early '53 in NYC. The
descriptions of the venue are certainly accurate! The exams I remember did
either require drawing circuits or fixing pre-drawn ones. Fortunately the
code was never a problem for me and I was even congratulated, although
Gary,
You should have signal at U10 pin 1 but you don't - you had a signal at
the BFO output if I recall correctly, so something is broken between
those two points.
Since you jumpered the KSB2 headers correctly, leave things that way for
now.
Set the K2 to TUNE and recheck to be certain
W2AGN wrote:
Toby Deinhardt wrote:
On the 23rd 24th of June 2007 Eric declared an END OF THREAD for this.
http://mailman.qth.net/pipermail/elecraft/
snip
Yep, for some reason Bill responded to this almost 2 weeks after my message. I
avoided further comment, knowing I would get blamed for
The KFL1-4 isn't putting out any 22mHz signal when switched to 20m Band. All
the other bands are oscillating properly. I believe X2 has failed, just like
several other folks have experienced. Evidently this is a weak link for the
K-1. I believe my rig is still under warranty, ( less than
Don Wilhelm wrote:
Gary,
You should have signal at U10 pin 1 but you don't - you had a signal at
the BFO output if I recall correctly, so something is broken between
those two points.
Since you jumpered the KSB2 headers correctly, leave things that way for
now.
Set the K2 to TUNE and
Good Evening,
I think summer has officially arrived in Oregon. No rain for almost a
week and the temperatures are reaching the 90s in the early afternoon.
After dusk the temperature drops into the 50s. On the 4th of July I hiked
up the mountain to an open area with a panoramic view.
Gary,
Possibly Q24 could need replaced, but it is too quick to judge.
Certainly V ALC is not up to the normal DC level - BTW, that listed
voltage is nominal for a setting of 5 watts out with the K2 actually
delivering 5 watts. Since you have no power out, the voltage on V ALC
should be quite
Ken Kopp wrote:
And they wouldn't accept my 20 WPM Radiotelegraph ticket
for my 20 WPM extra! But by then it was a snap.
They did accept mine in Los Angeles in 1956 ... well sort of. I was
sort of rattled going for my Extra and got to the FCC several hours
before the exam. The examiner
Just reading the archives and saw the KR2Q and N2EY reports. Congrats
to the K2's of Doug and Jim!!
My K2/100 #850 has joined some prestigious company!
Although it was not QRP, we - AC8W and I - used my K2/100 (and an amp)
at HK1/K8DD Multi-Single
1st place MS So. America
1st place MS outside
Regarding the stock TCXO and the optional KTCXO3-1 ...
Is the stock TCXO'S 5-PPM rating before or after software correction? How
many times more accurate is the optional KTCXO3-1 compared to the stock
TCXO?
--- - - - ---
Regarding the accessory connector ...
Please elaborate as to the
On Sat, 7 Jul 2007 08:07:00 EDT, [EMAIL PROTECTED] wrote:
The Examiner pointed to a chair at the Morse Code table for me.
He then unlocked one of the file cabinets and brought out the
code test machine, 'phones, and straight key, and set them up on
the table.
The code machine was a small unit
Anyone remember the token typewriter the FCC always had on hand for code
copy? I looked at that relic Remington and was thankful I could write faster
than I could type. : -)
Al WA6VNN
** See what's free at http://www.aol.com.
On Sat, 7 Jul 2007 14:40:22 -0400, DOUGLAS ZWIEBEL wrote:
Yes, I remember Mr. Cigar out of NYC very well.
Charlie Finkleman, a fixture of the FCC office. Although as
teenagers we regarded him as The God, he was a great guy and
one of the last code-qualified examiners. He had a very
Does anyone know a source where I can obtain one of those BNC to twin lug
adapters for the KX1? I am thinking of puuting up a G5RV fed with 300 ohm
ladder line.
Thanks and very 73/72!
Chris NV9Z
Hagerstown IN
www.eciqrp.org
** See what's free at
Hello,
It can be obtained from Hong Kong at US$5 including postage for ordinary air
mail.
73
Johnny VR2XMC
- Original Message -
From: [EMAIL PROTECTED]
To: elecraft@mailman.qth.net
Sent: Sunday, July 08, 2007 11:06 AM
Subject: [Elecraft] BNC To Twin Lug Adapter
Does anyone know
Can you feed 300 ohm ladder line right into a KX1? Will it tune it? I guess
I should try it... I always add a balun.
Craig
NZ0R
KX1 #1499
K1 #1966
K2/100 #4941
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED]
Sent: Saturday, July 07,
What is the typical build time of the KPA100 option?
73,
Steve N6VL
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My Elmers call sign was 2CGI. His name was actually
Elmer Carter. I still have his QSL and on it as a
receiver it says 1 MO low loss, Ant. 4-wire fan.
Under Transmitter there's a place for watts and Volts
on Plate. Note on the bottom reads Always Glad to
QSR No Messages Die Hr., We Always QSL,
On the Shipping Status page it states /At your option we will ship your
K3 with the standard 5 PPM TCXO and then ship you the TCXO3-1 when it is
ready - no additional shipping charge. /Should I have been contacted to
ask what my option will be? Also, is there a cut off date for ordering
(and
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