the grounding clips.
73,
Don W3FPR
- Original Message -
I've received two very helpful hints to help me determine which is the old
KPA100 shield and which came with the Shield Upgrade Kit:
The new shield should have holes in it to accept the three added
grounding clips.
and
Hold the two
hands, and the it is an insurmountable task to have all the
information up to date. All I can say for certain is that Elecraft does
have a record of the 2 K2s that I own - and I keep them posted when I order
an upgrade so they know which serial number it should be tracked on.
73,
Don W3FPR
find a low resistance, look for solder bridges at
each of the capacitors and at the toroid leads.
Hope yo find it without much frustration.
73,
Don W3FPR
- Original Message -
I am posting this again.
I have a problem with HI CUR On the K160RX
It comes on for a second and then shows
.
It does sound like you have a bad connection somewhere.
73,
Don W3FPR
- Original Message -
I guess I just need to build an external preamp, though I'm not sure why
my output without it is as low as it is.
___
Elecraft mailing list
Post
the settings on 160 and 80
meters so you have about the same output power in both bands -- BTW, you
should be able to easily achieve at least 10 watts output, most K2s I build
or work on will produce 12 to 14 watts on both 160 and 80 meters.
73,
Don W3FPR
- Original Message -
This may
Dan,
The 't' is on the BFO display corresponding to FL1 - and its only meaning is
that this is the BFO (carrier) frequency that will be used for transmit.
73,
Don W3FPR
- Original Message -
Well, you made me think, but it turns out, you are right. The CAL FIL
display says t
- if
the length is somewhere in between, it will still act as an impedance
transformer, but you will have to do a bit more involved calculation to
determine the impedance presented to the KXAT1 output.
73,
Don W3FPR
- Original Message -
Alan's Balun from WB6ZQZ will help low impedance
.html.
This is just a reminder that this mod exists, I haven't tried it because I
have had trouble using VOX on any transceiver I have used and have long ago
become accustomed to using only PTT.
73,
Don W3FPR
Life is what happens when you are making other plans
few folks who have the
non-K2 Heil products by offering alternatives that may work for them (short
of purchasing a new mic).
73,
Don W3FPR
- Original Message -
I just ordered the SSB option along with the Heil headset mic. I am now
seeing posts about problems with the Heil mics
).
This also means that my statement about your mic being able to be used on
another K2 is also incorrect. -- but everything does work FB if you remove
the configuration jumper.
73,
Don W3FPR
- Original Message -
Thanks for sharing this simple, ingenious approach. I did
(it might even be OK with no lockwasher (only the spacer) between
the boards).
BTW, yes my KAT2 was one of those with the problem, so I remember it well -
I shaved some of the material off the BNC jacks to make things fit, and
later the 2 lockwasher solution was created.
73,
Don W3FPR
of the blocking capacitor
on the RF board.
73,
Don W3FPR
- Original Message -
It's the old P6/J7 question again. I found some references in the
archives
but they just say Wow, be careful or I once was lost but now I'm
saved.
without actually telling how it goes.
So can someone help me
with the oscillator).
73,
Don W3FPR
- Original Message -
Dug out my 100 mhz scope, yes I should have got it out sooner! The 29 mhz
crystal is dead. So I checked the relays, they check good in b4 setting.
Changed the 15 m crystal to the 17 m crystal (26.05 mhz) it is also flat
lined. All have the app
, but there are no toroids mounted on
your kit yet.
73,
Don W3FPR
- Original Message -
I picked up this partially built K2 from a friend who decided it wasn't his
cup of tea. First thing I tried to do was follow along the manual and do
the resistance checks on the completed control panel and front
on the outside.
Finally, check soldering, then recheck soldering, and when that is complete,
double check the soldering!!!
73 and Happy Thanksgiving,
Don W3FPR
- Original Message -
I am now doing my transmitter alighment, page 75, and have a have run into
a problem with it.
On 40 meters when
be a learning experience in
itself - a side benefit is that it gives you an opportunity to double check
the component value and can avoid troubles later on.
73 and Happy Thanksgiving everyone,
Don W3FPR
- Original Message -
Make yourself copies of the schematic diagrams. If possible
because it
automatically compensates for slight variations in the reference frequency
required - a few folks have reported that the reference must be set a few
cycles away from 4 MHz for the most accurate results.
73,
Don W3FPR
- Original Message -
Thanks for this explanation
connectors on our microphones like the audio folks do (particularly
those mics used in the home station - handhelds for field or mobile use are
a different situation)
73,
Don W3FPR
- Original Message -
I built a K2 about a year ago and wired it for use
with the MH2 hand microphone
as much of
the extra stuff as is reasonable - the person you are responding to knows
what he asked).
73,
Don W3FPR
- Original Message -
Netiquette also says you shouldn't top post - which is posting your
reply above the quoted text. It can get confusing when there are replies
nessted
Stewart,
You may want to monitor the state of '8R', '8T', and 'MUTE' signals in the
K2 during such occurrances. That may give you a bit of information about
where to begin looking for the source of the problem.
73,
Don W3FPR
- Original Message -
From: Stewart Baker [EMAIL
real radios glow in the dark, you should really
like the glow from the K2 LCD display! G.
73,
Don W3FPR
- Original Message -
name is mike prevatt. call ku4yp. looking to build a k2 in the not too
distant future so thought i'd subscribe to the reflector. hope everyone
had a happy
line).
73
Don W3FPR
- Original Message -
Just received my MD2 and see it is necessary to modify my K@ to use it.
It's that rather silly from a marketing stand point? I would have thought
plug and play.
___
Elecraft mailing list
Post
or even a string of diodes to bring the
voltage to something less than the max specified for the device in question.
73,
Don W3FPR
- Original Message -
From: Dan Barker [EMAIL PROTECTED]
To: Elecraft elecraft@mailman.qth.net
Sent: Tuesday, November 30, 2004 8:29 AM
Subject: RE: [Elecraft
are unpredictable.
73,
Don W3FPR
- Original Message -
my K2/4477 shows the same strange sffect. I found out: AGC goes up, blocking
the IF-Amp; S-Meter shows full deflection, can
be checked at the AGC-Amp U2A pin1. Touching that IC with your fingertip
acts like a reset. Changing the IC did
Chas,
The KPA100 specs state that the PA Keying Output will sink up to 1 Amp and
handle up to 200 volts. This is only for positive voltage sources (it will
not function with negative voltages), and it behaves similar to a contact
closure to ground.
73,
Don W3FPR
- Original Message
that the FL1 BFO is the
one used for transmitting and that should be set to best match your voice
during transmit by listening on a separate receiver.
You can find some information on how to set up the filters on my website
www.qsl.net/w3fpr - look at the article on K2 Dial Calibration and you
,
Don W3FPR
- Original Message -
I have made up the control board for my K2 and all looks good. The
resistance checks were all within specs except the U5 OUT to gnd which was
about 3600 ohms. Checking further I find the 8R and 8T voltages seem OK but
some 5 volt areas
of 'orderliness' to help prevent construction errors.
73,
Don W3FPR
- Original Message -
May I offer a word of advice. Don't get into a Zen like state as you put
the caps in etc. Read and check EVERY step. Don't think to yourself
Ok..I'm running .047 caps right now
SSB? Or is my analysis
incorrect here?
73,
Don W3FPR
- Original Message -
I participated in the 160 Meter CW contest this weekend with my K2/100 and
noticed something I had never noticed before. I think that I might have a
misadjustment in the filters and I am not sure where.
I
on at the receiving end, but your K2 is likely to be correct (as
long as YOU don't have RIT or XIT turned on yourself).
73,
Don W3FPR
- Original Message -
From: W3FPR - Don Wilhelm [EMAIL PROTECTED]
To: Lee Buller [EMAIL PROTECTED]; Elecraft Reflector
elecraft@mailman.qth.net
Sent: Monday
will use the side where the pitch increases with
increasing frequency - that way my brain knows which way I am tuning without
looking at the frequency readout. This K2 provides more flexibility than I
thought before!!!
73,
Don W3FPR
- Original Message -
Now if only the sidetone
) that would still
provide a wide filter for FL1 (but 2 BFOs), and 400 Hz for all the rest,
giving the normal centered filter plus 5 shifted passband positions. Let
your imagination run wild and try it out.
73,
Don W3FPR
- Original Message -
W3FPR - Don Wilhelm wrote:
Also, I seldom
gets a bit ragged in
the passband at widths much over 1.0 kHz.
73,
Don W3FPR
- Original Message -
Last week I installed the ssb kit and now my audio out is low. I am
switching back and forth between my Yaesu MP for a reference.
Using Spectorgram with the K2 in CW mode
, and even we can become confused at times with the changes.
73,
Don W3FPR
- Original Message -
Hi all, I'm retracing the steps of a partially built K2 I got for free. My
origional schmatics are dated 10/6/02. I noticed on the latest schmatics
dated 1/27/04 there are some differences
to pin
17 of the MCU (Control Board U6) would do the job for you - drive the base
of the transistor with 3 to 5 volts to turn it on when you want the K2
muted. A 2N or similar should work just fine.
73,
Don W3FPR
___
Elecraft mailing list
Web,
Take a look at the K2 dial calibration article on my website
www.qsl.net/w3fpr for detail information about setting the calibration.
73,
Don W3FPR
- Original Message -
One problem remains, and that is the dial readout
is .06 MHz high. In other words, I had to dial up
provides some 'limiting' protection
for the ears while allowing one to dig for really weak signals - this is
applicable at any bandwidth, but more so for wider ones.
73,
Don W3FPR
- Original Message -
To this day I still prefer a wide filter, even with moderate QRM. With my K2
on CW, I
suggest you re-solder the LCD pins from the top side of the board,
making certain that the solder flows on the pin as well as the PC board.
To repeat -- first check soldering, then re-check soldering, and when you
have finished, check the soldering!!! (that fixes most problems).
73,
Don W3FPR
about it
yet.
73,
Don W3FPR
- Original Message -
Ok, I found a couple of messages in the files about
RFC11, but nothing decisive.
The manual says to mount it horizontally on the bottom
of the board, but the holes are almost on opposite
sides of the toroid. This would mean routing
'.
Did your power supply voltage sag somehow? Do you still have a nice low
resistance at the power connector? Look for things of that nature before
digging too deep into the K2 itself.
Perhaps it will be more clear after a bit of rest. Good luck!
73,
Don W3FPR
- Original Message
Jim,
Try CirCAD - they offer a free demo download --
http://www.holophase.com/dleval.htm.
73,
Don W3FPR
- Original Message -
I need to produce a couple of quality schematics. Anyone know of a
freebie CAD program to do this.
Jim, W4ATK
the rightmost LED to be on.
73,
Don W3FPR
- Original Message -
I'm not sure whether this is a problem or not but after performing the
S-meter alignment on p. 47 of the K2 assembly manaual, the tenth bargraph
LED stays lit. It is lit whenever I turn on the rig. The AGC threshold is
3.80
the perception of the receiving station rather than some absolute standard.
73,
Don W3FPR
- Original Message -
I've only seriously used two other HF rigs besides the K2, that is a
Kenwood TS-530S and a Kenwood TS-930S. So, when I make comparisons, its
between the K2 and the Kenwoods. When I have
common cause of problems.
73,
Don W3FPR
- Original Message -
Spent all of yesterday trying to figure out the problem with the low range
value during the PLL reference oscillator range test. I removed the
thermistor board as was suggested and checked the components for value
Earl,
You may want to touch up the soldering on T1-5 and T1-4 first. Either T1
has a broken primary wire or a bad solder connection. The 300 ohms
resistance reading is proper with an open primary - R22 is in parallel with
the T1 primary winding.
73,
Don W3FPR
- Original Message
is a solder connection. Even if it
has been working before, still suspect the soldering. Go over all
connections related to the components in the lower left quadrant of the
schematic page 2 of 2.
73,
Don W3FPR
- Original Message -
I have an unusual problem may some one can help
that a capacitor might have.
73,
Don W3FPR
- Original Message -
I just purchased the K1-4, serial #01951. Checking the capacitors for the
filter board I have a problem identifying C9 marked with 1.
I do have a small bright blue capacitor with .10 inch lead spacing with 1A
marked on one side
refinement check -- you should
notice no change in audio level when switching the AGC on/off when there is
no signal at the K2 input.
For now, it is probably OK to ignore the 0.02 volt difference. That small
an error may even be attributed to your DMM.
73,
Don W3FPR
- Original Message
).
I don't believe I have forgotten anything, but if I did, I'm certain someone
will correct me G
73,
Don W3FPR
- Original Message -
A friend of mine would like to buy this K2 as described below:
K2s, s/n 3155, which has the following options:
installed: KNB2, KAF2, KSB2 K160M. I
Hi,
I want to say Merry Christmas to all my friends here on the reflector who do
observe Christmas. For all those who do not, I wish you a very Happy
Holiday season.
73,
Don W3FPR
Life is what happens when you are making other plans
Reggie,
Check the power cord and the Anderson Power Pole connector at the KPA100 end
carefully. If the K2 is shutting down, it is quite likely that there is a
bad connection somewhere in the power supply cord and components.
73,
Don W3FPR
- Original Message -
From: k6xr [EMAIL
when I have tuned correctly to zero WWV - the displayed peak will be either
at 500 or 600 Hz depending on which minute it is (can you tell I don't have
the gift of perfect pitch? G).
Take a look at the K2 dial calibration article on my website
www.qsl.net/w3fpr for more detailed information
with the parts listing in hand and be certain all
the components you have placed are correct.
Good luck with it - work (and troubleshoot) in an orderly manner and you
will locate the source of the problem. Sorry, but I can't pinpoint it from
the information you provided thus far.
73,
Don W3FPR
soldering'!!! I speak from experience.
73,
Don W3FPR
- Original Message -
Well, knowing Greg and the quality of his workmanship, I'd doubt that
bad soldering is the problem. Also, his rf test bench is probably on the
same level of, say, Ron's.
Searching the web didn't show us much info
the switches wrong, so you could have a bad
front panel. I had a bad one once, it was punched just a wee bit crooked
(only about 2 mm off from a corner to corner measurement), and it was very
difficult to see visually - and I even had a good one to compare with.
73,
Don W3FPR
- Original
will be 1055
ohms if you prefer that value).
73,
Don W3FPR
- Original Message -
My new MD2 microphone should arrive tomorrow, and I am trying to decide
what
to do about the resistor between pin 6 and pin 1. I have a hand microphone
with a Heil HC-4 and a N0MF pre-amp in it that I want
W3FPR
- Original Message -
just read the manual for the KAT100. It states to
remove C44 on K2 control board before using KAT100.
OK. How does this affect the use of the K2 without the
KAT100, with KAT2?
You see, I want to switch covers from qrp to qro
, it is easy to miscount (the
two free ends constitute a turn too).
I should also ask, just how much can you trust your inductance meter? If it
does not measure the inductance at the operating frequency, that alone may
be the answer to the mystery.
73,
Don W3FPR
- Original Message
no problem since the
duty cycles with these modes is 50% or less. Continuous key-down should be
avoided except for short periods.
73,
Don W3FPR
- Original Message -
From: Jean-François Ménard [EMAIL PROTECTED]
To: Elecraft - Maling List elecraft@mailman.qth.net
Sent: Thursday
Chuck,
I believe you will find the information in the K2 Dial Calibration article
on my website useful - www.qsl.net/w3fpr. That article contains information
both on setting the 4 MHz reference and setting the filters/BFOs. There are
links ot other resources within the article.
73,
Don
See comments below:
- Original Message -
From: VR2BrettGraham [EMAIL PROTECTED]
To: elecraft@mailman.qth.net
Sent: Saturday, January 01, 2005 9:37 AM
Subject: Re: [Elecraft] Question about KNB2 Noise Blanker
(GainreductioninNB2 posit...
W3FPR replied to KH6AT that gated noise
the perfomance that you want - I
usually find that somewhere in the range of 3.6 volts to 3.8 volts is the
optimum setting.
73,
Don W3FPR
- Original Message -
*Hi folks -
In anticipation of beginning my next K2 I have been reviewing the archives
for the many, many posts on audio - so
is working, your problem is limited to
having the frequency correct, and that is associated with relays K13, K14
and K15 plus the capacitors that are connected to these relay points.
73,
Don W3FPR
- Original Message -
I ran into a little snag here and if anyone could help, I'd appreciate
] should start a new inductor on its
way to you. I believe Elecraft is still providing this replacement on an
'as needed' basis, free of charge.
73,
Don W3FPR
- Original Message -
On page 60 of the K2 manual the PLL Reference Oscillator Range Test
asks for the Ref. High Freq. and Ref
in the
labeling).
If the voltage on pin 3 of RP6 is much lower than 8 volts, the 8 volt
regulator (U4) may be the problem. However, the last person I helped who
had a reading similar to yours did not have the probe on pin 5 of U6. Pin 5
is the topmost pin and toward the side panel.
73,
Don W3FPR
as when the values were written, the resulting frequency may be a bit
different.
Now, I must admit that the differences are slight - but for those who would
struggle to get things 'right on', you should realize that these factors
will influence your results.
73,
Don W3FPR
- Original
full steam ahead very soon.
73,
Don W3FPR
- Original Message -
Remember what Mark Twain said, The news of my death has been greatly
exaggerated.
It wasn't Don, but his Mother who passed away. It is for Don to grieve the
loss. He has been a valued and welcome voice on the reflector. Let
at
the soldering in the PA area - it only takes a sliver of solder splash to
create a short.
73,
Don W3FPR
- Original Message -
In running the final Resistance Checks on p. 71 of the K2 manual, I only
get 1.7 ohms at the Q7 collector. The manual says I should get 500 ohms.
When I study
large capacitors are quite pricy.
73,
Don W3FPR
- Original Message -
Since this list is a font of everything electronic, can y'all help me with
this?
I've got a HP DC power supply (6443B) that's worked great for a long time.
I DON'T have a service manual for it (of course). Recently
an antenna to the receiveng antenna jack.
73,
Don W3FPR
- Original Message -
I set my k2 up two days ago after a long time idle and hooked up an 80
dipole
I was tuning around on 80 meters and it sounded dead but when I switched
the
antenna to my Kenwood ts450 the band came to life. so
you to experiment with it until you have
the settings you desire - If you are not so adventuresome and just 'want it
to work', do what the manual tells you to do - that will result in a
perfectly adequate S-meter response.
73,
Don W3FPR
- Original Message -
I have a couple
in an
external enclosure without the DC connection to the K2 RF board).
73,
Don W3FPR
- Original Message -
From: Joe Ford [EMAIL PROTECTED]
To: elecraft@mailman.qth.net
Sent: Friday, January 14, 2005 9:57 PM
Subject: [Elecraft] Operating in cold weather
Hello Elecrafters, I have
W3FPR
- Original Message -
I seem to recall that somebody somewhere reported adding a safety measure
to the IO connector and the matching cable. It involved plugging one hole
in the K2's IO socket and cutting a pin fom the corresponding connector on
the cable, I think.
The idea
. It is a
matter of preference, they both do a great job.
73,
Don W3FPR
- Original Message -
Has anybody used this analyzer for set-up?
http://people.freenet.de/dl4yhf/spectra1.html
___
Elecraft mailing list
Post to: Elecraft
of the switch because of this
situation.
73,
Don W3FPR
- Original Message -
Since I installed the latest software on KSB2 I realize frequently low
batt message at the diplay of my K2.
Anyone got the same problem or have an idea?
Ser.Nr. 1020,
Greetings out of the snowy cold
: the slight clicks on SN 4514 --
Noticable clicks when tuning is commonly a result of running CAL PLL without
the bottom cover installed.
Run CAL PLL again. Be certain the bottom cover is properly installed before
running and the 'clicks' should be reduced to almost non-existant.
73,
Don W3FPR
that
is only for a test, not a cure). 2 parallel crystals are used to 'de-Q' the
crystals and provide a greater BFO range than one alone would provide.
73,
Don W3FPR
- Original Message -
Some ask for more info.
With the probe in TP2 and CALL on FCTR the reading jumps fast around 4.620
mc
will get aroung to building one someday, but for now
the 2 wire jumpers do the job.
73,
Don W3FPR
- Original Message -
Has anyone designed and made an Un-module for the KDSP2 or KAF2? KE1L's
site does not list one.
http://w5big.home.comcast.net/K2_Un-modules.htm
I need to do some
my website www.qsl.net/w3fpr article on K2 dial calibration - you will find
more information than you may have wanted to know about it.
73,
Don W3FPR
- Original Message -
1) Still appears to be a problem with the AGC/S-meter calibration because
the S-meter is continuously pegged
as well as K4B.
73,
Don W3FPR
- Original Message -
Now I have been chasing the BFO range. The high end of the BFO range is
4918.2 which is quite a bit high from what the manual gives as an
expectation (4916-4917). The low end of the range is 4914.8 which isn't even
close to the expected
not changed mine
because I envision the time when I use my K2 portable, have a problem, and
there is no other voltmeter available - yes, unlikely, but still a
possibility.
73,
Don W3FPR
- Original Message -
I wonder if anyone HAS NOT accidentally bumped this switch. Anyone have a
solution
,
Don W3FPR
- Original Message -
While setting up a dipole antenna tonight a question come up while
discussing the tuning with myself: Which is the most effective antenna -
understanding it will be matched with a antenna tuner, either the internal
autotuner or an external manual tuner
Bill,
The part numbers and Yaesu phone number is on my website www.qsl.net/w3fpr -
look at the article dealing with an FT900 knob on the K2. The price for the
knob was valid at the time I wrote it - but may have changed.
Just one other thought - If you only want the rubber tire, the FT900
also use it
for the K2 alignment, but that is much more than is needed for aligning the
K2 filters.
73,
Don W3FPR
- Original Message -
I was wondering if anyone on the reflector had tried building the
Calibrated Noise Source described starting on Page 25.27 of the 2005 ARRL
Handbook
/mailarchive/html/elecraft-list/2003-06/msg01036.html
(the part labeled 'c)' is that part you are interested.
73,
Don W3FPR
- Original Message -
Has anyone had any luck using the vox to key the K-2
on PSK? I find that it takes a very high audio output
from my sound card and vox does
be suspicious of a zapped input (pin
6) on U3.
73,
Don W3FPR
- Original Message -
Jim -
Your thoughts helped in narrowing the question. The A=B switch does
function - so I pulled the rig apart and looked all around the rate switch
for any possible solder joint problem but saw none
Sorry, That would be an output from U3 pin 6.
73,
Don W3FPR
- Original Message -
From: W3FPR - Don Wilhelm [EMAIL PROTECTED]
To: Tim Logan [EMAIL PROTECTED]
Cc: Elecraft@mailman.qth.net
Sent: Tuesday, January 18, 2005 11:04 PM
Subject: Re: [Elecraft] K2 problem at page 43 of Rev. F
, the
base K2 RF probe type detector is usually more accurate than an external
wattmeter.
73,
Don W3FPR
- Original Message -
I am almost done assembling #3108. During the 40 meter Transmitter
Alignment (page 72) the radio is drawing 2.2 amps for 10w power. The manual
says much higher than 2
a high noise level at your QTH, the noise alone may be
activating the AGC and cause the conditions you describe.
73,
Don W3FPR
- Original Message -
I have a K2 with almost all of the add-ons (everything but DSP - and the
100 watt amplifier has just been added) and all elecraft mods
need additional information about setting the filters and BFOs, check
my website www.qsl.net/w3fpr - look at Step 3 of the article dealing with K2
Dial Calibration.
73,
Don W3FPR
- Original Message -
I thought that my recently finished K2 had come through test and it's
forst
connections carefully.
The current and voltage shown when you tap DISPLAY seems to be normal, but
you still could have a power supply connection that is adequate for low
currents and has a significant voltage drop when the current increases.
73,
Don W3FPR
- Original Message -
After
Bart,
I you could turn the PORT to OFF if you wanted to assure the inadvertent
communications with the computer could not take place. There is no power
savings that I am aware of.
I never turn mine off, and have not had any problems.
73,
Don W3FPR
- Original Message
and then remove one at a
time and put the proper mounting screws in with their lockwashers. It takes
more time to tell about it than to do it.
73,
Don W3FPR
- Original Message -
I'm currently building my K2, and have come to the tilt bail installation
part. I must be missing something, because
because there was some problem with it - my scepticism is
showing.
73,
Don W3FPR
- Original Message -
I'm running a K2 ser. 1020 with an old ksb2 rev.2. this combination runs
very well so far.
At Christmas I got a second ksb2 from eBay, unbuild and a new rev. D. I
bought this, because
why you
scraped the wire on the smooth crystal body (or on the R-Pak either), but I
don't doubt your findings.
73,
Don W3FPR
- Original Message -
Subject: [Elecraft] RFC1 and RFC2 on KSB2
Maybe it's just me, but I found RFC1 and RFC2 on the KSB2 to be very tight
fits. They are both
after completing that (if
your results are not that good, my first question is 'Did you do CAL PLL and
also run CAL FIL to write new BFO values?, and were you certain of WWV
zero-beat?'
73,
Don W3FPR
- Original Message -
I've never understood the obsession with exact frequency
familiar with the
variety, but for the most current production capacitors, the marking rules
indicated above will hold true.
73,
Don W3FPR
- Original Message -
From: John R. Lonigro [EMAIL PROTECTED]
Cc: Elec-Reflector elecraft@mailman.qth.net
Sent: Sunday, January 23, 2005 7:29 AM
Slater,
Press the VOX button enought times that 'PTT' is shown on the display. The
VOX cycles through several hold times.
73,
Don W3FPR
- Original Message -
From: Slater Tubman [EMAIL PROTECTED]
To: 'Elecraft' elecraft@mailman.qth.net
Sent: Sunday, January 23, 2005 11:02 AM
Subject
.) Of course the more
sophistocated way of handling such problems is with optoisolators, but they
are not usually free, and they require a voltage source - transformers
require no voltage.
73,
Don W3FPR
- Original Message -
Problem found. I added a fixed audio out port to the K2
.
73,
Don W3FPR
- Original Message -
Fred and others,
I've lost track of who originated what mod to eliminate that QSK click
that started for me when I installed the DSP option into the K2. What
provided a good enough solution for me was the 100K resistor in series
with pin 17
101 - 200 of 652 matches
Mail list logo
