Brett Howard wrote:
Because some of us despise being forced to run Windows to use the
product. Some of us would also like the tools to continue working
It's quite likely that the cheapest way for Elecraft to implement such a
product would result in its running Windows, albeit XP embedded, on
When you set the ALC on CW, this also sets the ALC for your peak SSB power.
And you're right - you should adjust the ALC so it just comes on with the
drive necessary to get your desired output.
That being said, I don't use ALC. My ALS-600 needs about 65 watts to drive
it to full output.
Ya know, even with the LPPAN SDR display up, my eyes are always on CWSkimmer
anyway instead of the scope display. So if the EPan is stand alone, that's fine
with me.
Now if the K3 could just tell CWSkimmer what the IF shift is when changing
roofing filters, and CWSkimmer would enhance their
Just wanted to update anyone on here who might have been curious. I believe I
found the intermittant. In the process of doing the tranmitter signal
tracing I found that the problem appeared to be between the pre-driver
output and the driver input. With the RF probe I was seeing 6v (!) on the
case
From those measurements, you definitely had a problem between Q5 and
Q6. Congratulations on finding it.
The much higher than expected RF Voltages seems to mystify some builders
- that is *not* a problem nor should it be cause for any alarm, but is
normal behavior for the K2 power control
Now if the K3 could just tell CWSkimmer what the IF shift is
when changing roofing filters,
That information is already available in the CAT interface.
Documentation is included in the K3 Programmers Reference
available on the Elecraft web site. Look up the FI get
command for the IF
Rather than mess with adjusting the drive and/or connecting
up ALC, I place a relay-switched 2dB attenuator in-line with
the amplifier. The attenuator automatically goes in-line
when I turn on the amplifier so I can just leave my K3 set
for 100 watts all the time. The attenuator is
I purchased an AM radio kit for my five year old grandson. It was a piece of
#...@#$%! Did not even work when I completed it. Does anyone know of a simple
radio kit (like the old Heath crystal radio kit) that is of decent quality? He
was so disappointed, I was also. He loves to listen
Alan, look at the Ten Tec kits - they have a few receivers and their kits
are top notch. They're regens so you know they're simple!
Good luck
73,Tom W0EA
On Fri, Jul 24, 2009 at 10:45 AM, Alan Price w1...@arrl.net wrote:
I purchased an AM radio kit for my five year old grandson. It was a
Alan,
While your looking, check out this totally cool site
http://www.schmarder.com/radios/crystal/01.htm
Duane
N1BBR
--
bw...@fastmail.net
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Help:
One of the Ten Tec receiver kits is a dual conversion superhet with digital
readout and memories covering 100 kHz to 30 MHz for just under $200 - about
twice the price of their 1253 regen at $90:
http://radio.tentec.com/kits/receivers/1254
with a YouTube video about it produced by Ten Tec at:
You might look at the Softrock 40 small board. Great capability. It does
have some SMT surface mount chips on it. I am sure you can get some help
with them if you need to like I did for the first time. Small, cheap (was
$10 in the beginning). It is a receiver or a single band or another
...one would be better advised to build an attenuator into the
amplifier...
I did consider incorporating the attenuator inside the ALS-600 (not an issue
on 6-meters as the ALS-600 is 160-10 meters only). But there is
surprisingly little room inside the amp for the attenuator where it is
And I decided that a 2dB degradation of MDS wasn't a big deal
for me.
It may not be a big deal if you don't consider 6 meters. However,
given the crying and gnashing of teeth here on the list about six
meter MDS prior to the PR6, there are obviously those for whom
every dB is golden at
I can relate to that. A few weeks ago I had a complicated spinal
procedure performed. Recovery is a slow process and the outcome will
not be clear for a few more weeks. Last weekend the proper solution to
my post-operative doldrums solidified in my head and I quickly ordered a
K3 kit along
K3 kit along with a KAT3 and KPA3...seems a good project for your
circumstances, Doug.
...wishing you good fortune with your recovery!
Best regards,
Dick - KA5KKT
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I am about to order filters for the K3 and need some final advice. I have
the capability for diversity reception on 160 and 80 and am wondering what
is the best filter pair to use for CW. Price really doesn't enter into the
equation as a pair of matched 5-poles filters are about the same
Hey guys, another update on my tuner troubles. We pulled out the TL072 we'd
put in place of U4 and checked the voltages through the RF bridge and
found everything to be good so the problems I've been having have been in
U4. For those who I may have not told, it turns out the first device I put
I should receive my new K1-2 with KAT1 tomorrow or Monday. I ordered
40M and 30M for starters. I will add others shortly. My question is
regarding modification for other bands. I've seen replacement parts
lists for 12 and 10 M. Is there any reason the KFL1-4 is limited to
40/30/20 and 17 or
Hello Group,
Rechargable Li-ion 3.7v cells are now very cheap ($4 for a 1,500maH cell) and
easily available in Hong Kong. I am thinking to use them to replace the Lead
Acid cell of the KBT2. This will make the K2 less heavy and give more battery
power for longer operation time. K2 will
The 4 band board can be only used on 40/30/20 and 17 OR 15 meters. That's
the way it's designed and your only option is whether the topmost band will
be 17 or 15 meters.
two band boards can be built for anything from 160 thru 15 meters. 160 is
not a standard Elecraft stock band, but all the
Hi Dave,
to get the SDR and the K3 to match, click on the WWV button and use this to
set the if frequency Global offset. That will put you right on the mark..Its
in the Softrock if stage tab...
Don...w2xb
N1IX-2 wrote:
I finally have things working more or less.
What I see on the SDR
Gary,
The 4 band board cannot be modified much. The lower two bands must
share the same low pass filter, so you are limited to 40 and 30. A low
pass filter that would pass a 17 meter signal would be too close to the
second harmonic of 30 meters to effectively reduce that 2nd harmonic.
The
Hi Alan,
Please consider MFJ's 8100K regenerative receiver kit. It provides reasonable
shortwave performance, and its regeneration control can be adjusted for ssb
and cw reception. The radio's open layout makes it a good kit for beginners,
and the $80 price includes a nice case. The kit
~
N2CQ QRP CONTEST CALENDAR
July 25 to Aug 26, 2009
~
MQFD Monthly Sprint (CW/PH/Digital) *** QRP Contest ***
Jul 25, 1800z to 2200z
Rules: http://w2agn.net/mqfdsprint.html
I used my sig generator and use the k3 auto spot to zero beat. Then
adjusted the offset till the two tones matched (listening to the k3
and power sdr at the same time.
Greg
Sent from my iPhone
On Jul 24, 2009, at 6:25 PM, W2XB haircut...@verizon.net wrote:
Hi Dave,
to get the SDR and
W4UM wrote:
What are your recommendation if I were to get only
one pair of filters?
I would go with either the 500 or 400 8-poles.
Is there any real value to getting a pair of narrow
(200Hz or 250Hz) filters as well as a pair of the wider (400Hz or 500Hz) CW
filters, or am I just
Just a gentle suggestion from a non-K3 guy.
A while back it was brought up that we'd place the model # of the rig being
discussed in the subject line of our posts, when applicable.
Like, K3 when we were talking about that rig, or K1, etc. Threads of
general interest would not have any
Thanks, Sandy and Don. Looks like the two-band modules will give me the
flexibility I want. Can't wait to get started. USPS tracking shows it
has arrived and been processed through the Phoenix sorting facility.
I'll have my kit tomorrow!
Gary
KJ7RT
Lowly K2, Tom??
For me the jury's still out: my nice analog K2 or the very flexible and
feature-rich digital K3.
I'll probably never decide, just as I won't bother to decide whether 80 or
40 meters is a better band. They're just different, that's all. They do
different things better.
As for
I am not sure if you are planning to change the two band modules often
but if you are, I think it would be better to use an external tuner
like the T1 rather than the optional internal tuner. It makes module
swapping much easier.
The K1 wasn't really designed for frequent module changes and
I am about to order filters for the K3 and need some final
advice.
Hi Mike.
I have a pair of 400Hz and a pair of 250Hz 8 poles in my K3. I'm
pretty active, 99% CW, and rarely use the 400Hz (maybe once a day) and
very rarely the 250Hz (once a week). The DSP works extremely well.
So of
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