It could be the crystal but that's really rare. The first thing I'd check is
the battery. If it's low the oscillator will stop working and it might be
marginal so the lowest-activity crystal stops first - in your case perhaps
the 40 meter crystal.
Ron AC7AC
-Original Message-
From:
Yes, you are fine, Shane. Note that step says, Your DMM may indicate the
value is so high it is out of the range of the instrument and as it does
when in ohms mode and the probes are not touching anything.
So it's reading what your Fluke reads when the leads are not touching
anything. All is
Sois anyone monitoring the peak temperature on their KPA500? I'm kind
of doing that, and it seems like mine gets up to the mid 50's C before it
more or less stabilizes. It's kind of neat how the fan speeds up as needed,
although I really can't hear it that well. Compared to other amps
Two LEDs inside my P3 are blinking, alternating, and my P3 shows no signals.
Ideas?
--Andrew, NV1B
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post:
I have one question at this point--when I switch my K3 to 30 meters the amp
recognizes that fact, and displays that band. However, there is no
indication that the amp works on 30 meters, and there is not an optional
band switch for 30 meters--probably, at a minimum, because that band is
limited
Andrew Moore-3 wrote:
Two LEDs inside my P3 are blinking, alternating, and my P3 shows no
signals.
Ideas?
That's normal...don't worry about it.
73, Bill
--
View this message in context:
http://elecraft.365791.n2.nabble.com/P3-alternating-blinking-red-LEDs-tp6606251p6606488.html
Sent
I used the discount code JULYBOOKS11 last evening and it worked for a 20%
discount on the K3 book.
Thanks Fred.
Mike
--
View this message in context:
http://elecraft.365791.n2.nabble.com/KE7X-Book-Discount-tp6606579p6606579.html
Sent from the Elecraft mailing list archive at Nabble.com.
I was more concerned about the lack of signals showing up, but come to think
of it, maybe due to panic I didn't think to adjust the reference level.
I'll check this when I get back home today.
On Thu, Jul 21, 2011 at 8:10 AM, Bill W4ZV btipp...@alum.mit.edu wrote:
Andrew Moore-3 wrote:
Due to serious illness I am looking at simplifying and downsizing my radio
equipment and returning to QRP using my old K2. Unfortunately the K2 seems
to lack a facility that I used on the K3 namely a KEY OUT jack that could be
used to key an external amplifier on transmit (or in my case the MFJ
I can send you an amp kit free of charge but let me check my junk box first .
Sent from my iPhone 4
Julian, G4ILO julian.g4...@gmail.com 於 2011年7月21日 下午9:23 寫道：
Due to serious illness I am looking at simplifying and downsizing my radio
equipment and returning to QRP using my old K2.
Julian -
Yes, there is. Check the K2 notes pages on the Elecraft web site, or
build your own, which is what I did.All that is required, if I
remember correctly, is a resistor (anything between 1000 and 2200 Ohms,
1/4 watt) and a NPN transistor capable of handling the required
Received #203 on Wednesday at 1 PM, kit complete at 6:30 PM. All went
smoothly with only a few flat head screws missing from inventory. Send note
to Elecraft on those items and proceeded to setup amplifier in shack. Jumped
on 160m with my regular group on 1905 and got several excellent reports
Looking for one or two 200 or 250 Hz filters for the K3 (matched on the five
pole would be nice, but not super fussy)...
I have a KBPF3 General Coverage RX Bandpass Module and KFL3A-6K (6 kHz AM
/ ESSB, 8-pole (req'd for AM) **) available for trade or sale. Maybe a
KFL3B-FM (13 kHz FM
Hi All!
I never did this when I built my K1-4, and I regret it, so I am really
documenting the build of my K2. I completed the 160 meter module yesterday,
and I hope to have the noise blanker done today. I am building the options
first, and then the K2. That way, they will be done and ready
Jim
Instead of using 8T to drive the keying circuit, you should use the fall
of 8R - 8R falls before 8T is asserted and stays down longer than 8T is
active. It will follow the menu setting for t-r (8R HOLD) and the delay
setting.
Using 8T could cause hot switching at the amplifier in some
I'd like to get a P3 but have been seeing emails over the past months about
forthcoming enhancements to it. Would it benefit me to wait for these to be
released? Or will the enhancements be add-ons regardless of P3 version?
Thanks 73,
Mike ab3ap
Hi all
My KPA-500 sn 0212 got delivered on Monday afternoon by UPS, started Tuesday
morning on assembly all went well except some flat head screws were missing but
a quick email and Gary had the small screws enroute.
The Aux cable is a must have and the K3 and KPA500 talking to one another!!!
Hello,
in the release notes there is the S-Meter Light program mentioned. I just
installed it and didn`t find a support for K3`s. Will this be released later
?
73
Michael
--
View this message in context:
http://elecraft.365791.n2.nabble.com/MCU-4-39-DSP-2-73-tp6604057p6607284.html
Sent from the
On Wed, Jul 20, 2011 at 7:08 PM, Igor Kosvin k.i...@comcast.net wrote:
...aging drift - better than 1e-11 per month. Useful life of LPRO - usually
15 years.
Make your math how much it drifts over life
===
An interesting question. If the drift is always in the same direction, you
My error! Phil Salas is right of course. I was looking across the top row
of band selection buttons, and 30 meters is skipped, but it is on the 2nd
row. All the WARC bands, plus 6 meters are on the 2nd row. I've now set my
30 meter position to max at 200 watts. Pretty slick!
Dave W7AQK
The drift rate of 1e-11 per month or so is regarded after one month of
conituous operation. The first month after turn-on is different. It usually
takes few days, sometimes couple weeks to reach the final drift rate. After
that it is pretty much constant slope. Every time you turn off the
Hi Everyone!
I have two questions that I would like to pose to the group about grounding and
soldering PC boards:
1. I know about ESD precautions, and I do take them. I have a wrist strap,
and my soldering iron is ESD safe. I am working on my K2 in the basement. I
have pained concrete
On Thu, Jul 21, 2011 at 11:12 AM, David Dietrich kc9ehq2...@yahoo.comwrote:
...You go to solder your components onto the board, and the component or
board doesn't want to take the solder immediately?...
=
David, there is a wealth of info on this and other building topics included
in
I'm sure the reference level setting is why you don't see any signals as you
have already surmised. As someone else mentioned I think the red blinking LED
is normal. At least my PIII has a red blinking LED or two inside which I was a
bit surprised to discover. I ate concluded it was probably
Had the amp a month. Only used it on 6m as I'm chasing DXCC on that
band. I drive it with apx 34W from the K3. Display says 500w. Modest
5 el yagi on a 12' boom here. 7 new ones since I got the amp. Wrkd three
JAs one afternoon. Not bad from NW Tennessee. I love the amp. Guess it
will
K7WIA's experience with his 6m receiver got me to try this with my
K3. I have an ARR P50VDG preamp installed and see typically S4
flickering up to S5 for noise connected either 6m yagi. Reducing
RFGain immediately increases s-meter reading with the ARR preamp so I
switched it off. Noise is
Add-ons I believe.
73,
Bill
K9YEQ
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Mike Markowski
Sent: Thursday, July 21, 2011 10:26 AM
To: Elecraft Group
Subject: [Elecraft] Advantage to waiting on P3?
I'd like to get a
Just picked up a padded soft-side case at Walmart: made by Norelco, it is
designed for one of their electric razor outfits.
Made from nice quality heavy duty Nylon weave construction, complete side zips
open with a few small mesh compartments inside that I will remove.
Size is approx 6W x 8L x
Ed,
I suspect he was not using a K3 because he said the S-meter did reduce
when the RF Gain was reduced.
You could turn off the K3 preamp and turn on the attenuator and see if
that drops the ambient noise level. With your external preamp, I
suspect you can reduce the K3 gain substantially.
I believe that all this does is prove what I have said many times for over two
years---every K3 is different with respect to its RFG/AGC characteristics.
The RF Gain calibration is an attempt to fix this variability.
--- On Thu, 7/21/11, Edward R. Cole kl...@acsalaska.net wrote:
From: Edward
I want to thank all of you for the outpouring of comments and suggestions
regarding the K2. I did not realize all the options available and you all
have provided me with good information to evaluate making my selection.
As mentioned to some, my goal is to get down to one main radio (besides
There is an ELECRAFT Application Note Front Panel Microphone Circuit
Modification.
You have it on your K3?
73s - Twan - PA0KV
|I have a situation with the CMP and ACL graphs indicating and a scratchy
|noise that happens many times when I press the PTT button pn my MH2 mic.
|If I tap it or
Yes I am using the K3
I was using the preamp that is in the K3,I also have the ARR P50VD
preamp on the back of the K3 but using it just raises the background noise
to S7.
Remember I live in the city. I can turn off the preamp that is in the K3,
disconnect the antenna listen to the hiss of the
Ed,
When one reduces the RF Gain on the K3, the S-meter indication increases.
So how are you accomplishing this S-meter dip?
I do not doubt your results, but perhaps your description of the S-meter
deflection has been misunderstood.
73,
Don W3FPR
On 7/21/2011 4:00 PM, K7WIA wrote:
Yes I am
The LEDs are there as a troubleshooting aid. If D200 is blinking the
CPU is alive and if D301 is blinking then the CPU is able to
communicates with the video graphics controller.
Alan N1AL
On Thu, 2011-07-21 at 07:10 -0400, Andrew Moore wrote:
Two LEDs inside my P3 are blinking, alternating,
Ok we did the RF calibration per the K3 utility program using the XG3 for the
signal source and I see no change with the way the S meter responds, being
I use the K3 for 6 meters only I set the S meter calibration for that band
using the XG3 this is how my S meter is set up in the Confg. menu.
Don, when the RF gain is fully cw ( max ) I have 3 bars on the S Meter,
when I slowly reduce the RF gain control I watch the S Meter and when I get
it just past the 9 o'clock position the S Meter will reduce to only 1 bar
showing. you can hear the background noise drop as you do this, then I
oops this should be reduce to the 3 o'clock posistion,,,sorry
Ed K7WIA
--
View this message in context:
http://elecraft.365791.n2.nabble.com/RF-gain-sweet-spot-tp6604787p6608569.html
Sent from the Elecraft mailing list archive at Nabble.com.
Don, when the RF gain is fully cw ( max ) I have 3 bars
on the S Meter,
when I slowly reduce the RF gain control I watch the S Meter
and when I get
it just past the 9 o'clock position the S Meter will reduce
to only 1 bar
showing.
???
As I gradually reduce the RF gain on my K3,
See...The Mojo indicators!
Gary
On 22 July 2011 06:38, Alan Bloom n...@sonic.net wrote:
The LEDs are there as a troubleshooting aid. If D200 is blinking the
CPU is alive and if D301 is blinking then the CPU is able to
communicates with the video graphics controller.
Alan N1AL
On
Ed,
Something is strange. It may be your ambient noise level, so try it
with the K3 connected to a dummy load (or just no antenna).
Normally, as the RF gain is reduced, the S-meter indication will
increase. Apparently your K3 is doing something different.
At a 9 o'clock position, my K3
I don't know but I like it this way, as my noise floor changes through the
day I do have to readjust the sweet spot, but it is just a very small turn
of the RF knob
I checked this with the noise blanker on and off and I see the same effect,
it's just with the blanker off I can only reduce
Well when i disconect the antenna I have no bars on the S meter, a 2 inch
piece of wire at the ant port gave me 1 bar on the S meter and I can still
dip the meter,,
THIS ALL HAPPENS AT THE 3 O'CLOCK POSITIONNOT AT 9'CLOCK MY ERROR
Ed K7WIA
--
View this message in context:
OK I just did a test using the XG3 set at the 1uv 50uv level and I can dip
the S meter. it dips the signal level of the XG3 shown on the S meter...
Ed K7WIA
--
View this message in context:
http://elecraft.365791.n2.nabble.com/RF-gain-sweet-spot-tp6604787p6608708.html
Sent from the Elecraft
I think the RF pot has a weak spot near the CW end. I don't know how it's made,
but if the resistance is decreasing as it goes toward CW then it is minimum at
three o'clock and increases slightly to full CW. Just my 2 cents.
Kurt, W7QHD
Date: Thu, 21 Jul 2011 15:17:19 -0700
From:
I seem to recall that somebody demonstrate a similar artifact in the RF
gain control to Elecraft at Dayton. Anybody recall just what that demo was?
73 de Brian/K3KO
On 7/21/2011 21:37, Don Wilhelm wrote:
Ed,
Something is strange. It may be your ambient noise level, so try it
with the K3
The RF pot in the K3 is a encoder, not a carbon pot found in old tube radios
used as a volume control.
Ed K7WIA
--
View this message in context:
http://elecraft.365791.n2.nabble.com/RF-gain-sweet-spot-tp6604787p6608745.html
Sent from the Elecraft mailing list archive at Nabble.com.
Ed,
Ok, I have just confirmed your experience (but I cannot explain it). If
I tune to a band where the noise level is S-3 and I reduce the RF Gain a
bit (to the 2:30 or 3 o'clock position), the S-meter reading will
reduce, but if I reduce the RF Gain more CCW, the S-meter reading will
OH! Well, my non tube type K2 has a carbon pot.
Date: Thu, 21 Jul 2011 15:34:01 -0700
From: emoss98...@msn.com
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] RF gain sweet spot
The RF pot in the K3 is a encoder, not a carbon pot found in old tube radios
used as a volume control.
I don't know if this is a software glitch or not. but if it's in the
software I would sure like to keep this feature as it has given me a edge on
weak sig, just being able to have a set point for the gain just right for
the band conditions. I would have to compare another K3 that did not do
FWIW: K3 #642 does it too. I never mess with the RF gain so I never
noticed it before. Full gain on mine is at 5 o'clock. S-meter drops
until 4 o'clock, then starts climbing. What I do NOT notice is an
improved S/N on a very weak signal from my service monitor at the
S-meter minimum.
Don. LEAVE IT ALONE I LIKE IT THIS WAY
Ed K7WIA
--
View this message in context:
http://elecraft.365791.n2.nabble.com/RF-gain-sweet-spot-tp6604787p6608796.html
Sent from the Elecraft mailing list archive at Nabble.com.
__
Elecraft
* On 2011 21 Jul 17:48 -0500, K7WIA wrote:
I don't know if this is a software glitch or not. but if it's in the
software I would sure like to keep this feature as it has given me a edge on
weak sig, just being able to have a set point for the gain just right for
the band conditions. I would
Not necessarily with a k3 but any rig. I and others have had issues with a 706
on 15 or 17 and I don't remember which.
I had a weird swr issue and maybe self oscillation on 15. Blew my lpa board
again.( it's my understanding that there is no swr protection for that board
yet because of so few
Mike,
The first response is what happens if you transmit into a dummy load.
If the problem disappears when connected to a dummy load, you either
have a parasitic oscillation or you have problem with your antenna system.
Since this situation occurs with multiple transceivers, I highly suspect
Alan...
I have the K2/100 as my exclusive radio. It has served all my needs
admirably. Other radios are no doubt better, but only marginally. The
100w amp can be swapped out for QRP when that mode is desired. I operate
virtually 100% cw and in this mode, it's a very serviceable radio. And,
as
...I and others have had issues with a 706 on 15 or 17 and I don't remember
which.
I had a weird swr issue and maybe self oscillation on 15...
There was an instability problem with the IC-706MKIIG on 15 and 17 meters.
Icom published a service bulletin on this (Bulletin 928). It has to do with
Dear Gang:
I posted this message a while back, then had some health issues pop up that
distracted me. My apologies to those who orginally responded.
I just got the shipping notice from Elecraft that my KPA500K will ship in a few
days. The SB-226 has been sold and now the AL-1200 MUST GO NOW.
No one has said this but I'm sure they will be user installable, is typical of
most Elecraft enhancements to their products.
73,
Tom
Amateur Radio Operator N5GE
ARRL Lifetime Member
QCWA Lifetime Member
On Thu, 21 Jul 2011 11:25:47 -0400, Mike Markowski mike.ab...@gmail.com wrote:
I'd like to
I think the main selling point of Elecraft product is that older version can be
field upgrade to the latest version. This can also be adversely interpreted in
a naughty way as something 'work-in-progress' in the market :) - well, all
depends how you view it.
If you need a P3 now, just go for
Thanks all. That was my crash course in resistance checking. The smoke
test went fine and the lights were fun to look at.
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help:
I do agree that the K3 is very versatile with high and low cuts. I guess
it’s just ones preference. I can stand 2.2KHz BW or even 2KHz but anything
less then that to me is too narrow. It’s probably because of my interest
in HF music and the fact that my brothers and me owned and operated a
No, the RF Gain control is one-half of a dual potentiometer, see the
K3 Front Panel schematic,
page 5 of 7 Front Panel - Miscellaneous.
Bob NW8L
The RF pot in the K3 is a encoder, not a carbon pot found in old tube radios
used as a volume control.
Ed K7WIA
63 matches
Mail list logo
