On 11/2/2010 5:12 AM, Bill VanAlstyne W5WVO wrote:
but because I trust the COMPANY to produce quality parts in
whatever country they choose to manufacture in.
YES! I don't want to get into the politics of this, but the very sad
part is that so many US companies have been forced by world
On 11/2/2010 4:54 PM, Bob Cunnings wrote:
Analog or switching power supplies themselves are highly susceptible
to RF. A few millivolts of RF in the power supply can create an
instability which could lead to a catastrophic failure. We never
recommend regulated or switching power supplies
This was in today's ARRL Letter.
Milton A. Sullivan Jr, ex-K8YDO, Former Chief Engineer at R. L. Drake
(SK)Milton A. Buddy Sullivan Jr, ex-K8YDO, of Washington, DC -- the
former chief engineer at the R. L. Drake Company
http://en.wikipedia.org/wiki/R._L._Drake_Company -- passed away from a
On 11/10/2010 10:20 AM, Don Ehrlich wrote:
I tried a quick and dirty fix which consisted of wiring a pair
of two microfarad/400 volt mylar film capacitors directly to an AC plug (one
capacitor from each line to the ground pin) and then plugging it into the
same outlet as the treadmill.
This
advice, see http://audiosystemsgroup.com/RFI-Ham.pdf
73, Jim Brown K9YC
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net
This list
On 11/12/2010 7:43 AM, Tommy Alderman wrote:
Could someone please re-past the suggested TX EQ for the K3 when using the
Yamaha CM-500 mic?
Rear panel, bias on, Menu Mic Gain to low setting. TXEQ -- set two
lowest bands to their minimum setting. Depending on your voice, you may
also want a
On 11/14/2010 4:20 AM, Bill W4ZV wrote:
I also suggested the background noise issue to Joe.
This makes sense to me, Bill. It's the noise that excites the ringing,
and the TRANSIENT waveform of the noise is almost certain to affect the
extent of the ringing. I have VERY limited experience
On 11/14/2010 4:23 PM, Bill W4ZV wrote:
I don't know if you've used the K3's APF yet but it definitely needs very
careful tuning to work right (i.e. within 5 Hz of a signal peak...and most
callers don't zero beat me that closely).
YES! That's exactly what I'm talking about with respect to it
circuit includes some form of
bandpass filter.
73, Jim Brown K9YC
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net
This list
On 11/15/2010 5:12 PM, Barry Pfeil wrote:
BUT, when using VOX, I've discovered that the message won't play if I try to
start it (with the N1MM F-key or ENTER in ESM mode) while the PTT is still
asserted from my earlier speaking.
During CQP, I used DVR for the first time on your rig. I
On 11/15/2010 7:35 PM, Chris Hembree wrote:
Just got my CM 500 today. Would someone please tell me what the black box
with 2AAA batteries is for.
It's for when you want to use the mic with something that does not
provide voltage for the electret element. Contrary to what some Yamaha
On 11/16/2010 4:40 AM, Lyle Johnson wrote:
VOX over-ride of the DVR was a specific design goal.
Whoever set that goal made a BIG mistake. At the very least, there
should be a software switch to disable it.
A MAJOR reason for using DVR is to allow you to slurp coffee or chew
munchies while
On 11/16/2010 1:04 PM, David Christ wrote:
Going through things in storage I found an Electro Voice 630 HiZ and
an Electro Voice 664 microphone. Can anyone give me a clue if they
are good for anything?
The 664 would sound great with almost any ham rig, but it needs EQ,
because it's a flat
in the UK would say.
73, Jim Brown K9YC
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net
This list hosted by: http://www.qsl.net
On 11/16/2010 4:23 PM, ab2tc wrote:
I am still working on mine. My main problem is that I have yet to find a
source of ferrites that are big enough to thread cables with connectors
through (the snap-on ones are totally useless) and effective on HF.
See Appendix One of
of human speech is greatest in the lower octaves, so an
averaging display should NOT look flat. But it is NEVER wise to depend
only on any form of spectral response display to set EQ. The final test
instrument must always be our ears and the grey matter between them.
73, Jim Brown K9YC
On 11/17/2010 7:35 AM, Bill W4ZV wrote:
Reducing AF Gain is about the only solution to attenuate the continuous
ringing sound but that also attenuates the signal you're trying to hear.
Reducing RF gain is also a big help.
73, Jim K9YC
On 11/17/2010 10:43 AM, Alan Bloom wrote:
I was using the peak mode on the P3 with averaging turned off. The peak
is basically instantaneous, limited only by the bandpass filter in front
of the FFT, about 4 kHz (+/- 2 kHz from the RF center frequency) at the
narrowest spans. The hold time is
On 11/17/2010 10:41 PM, Deane Walkington wrote:
Does anyone know of a US store that will ship Yamaha CM 500 to an
international address, that is a country other than USA and Canada?
Is this part of Yamaha's product line not distributed in VK?
73, Jim K9YC
On 11/18/2010 5:04 AM, Svend Spanget wrote:
Yeah - for 65$.
73 de Svend, OZ7UV
My XYL just bought $200 worth of fabric to use in her artists workshop
from a distributor in the UK. The selection was great and the prices
were good, but when she added the cost for shipping, customs, and 3%
no good reason to spend
what it costs to buy it when you can get things that sound and feel as
good or better for a third the price.
73, Jim Brown K9YC
On 11/18/2010 12:00 PM, Joe Subich, W4TV wrote:
http://www.newegg.com/Product/Product.aspx?Item=N82E16826193029
That item is actually
On 11/19/2010 5:48 AM, Luis V. Romero wrote:
when I travel to NQ4I, where my CM500 does not work!
Lu -- thanks for the detailed rundown on the Koss unit.
I don't know what radios are at NQ4I, but I'm headed to PJ4 for CQWWCW,
where FT1000MPs are used. Before and after the contest, I may want
On 11/19/2010 7:53 AM, Jim Miller KG0KP wrote:
Ideas on what to check?
On the setup menu, check MIC GAIN. My guess is that it should be LOW
and may have been changed to HIGH.
73, Jim K9YC
__
Elecraft mailing list
Home:
On 11/19/2010 6:23 PM, Luis V. Romero wrote:
These Orions are really bassy.
I understand. Makes you appreciate the K3 even more -- no need for the
W2IHY unit, or for external EQ.
Take a look at the simple circuit that Joe, W4TV, posted yesterday.
It's a very old broadcast engineering
intermod products are also quite audible at fairly low levels, while
others that are common to western musical scales are less audible.
73, Jim Brown K9YC
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http
On 12/2/2010 9:50 AM, Mike Rodgers wrote:
I failed to mention it's the sound on receive and not transmit that concerns
me.most are telling me it's nothing to worry about.
I would generally agree with that. The RX in the K3 is excellent, the
IF filters are excellent, the audio chain is quite
On 12/3/2010 8:56 AM, Wayne Burdick wrote:
K3s
are at or near the top in every CW contest already, thanks to the
skill of our customers rather than bandwidth-hogging signals.
Well said, Wayne.
73, Jim K9YC
__
Elecraft mailing list
. I use miniature coax to
build them (like RG174, etc.)
For part numbers, see http://audiosystemsgroup.com/HamInterfacing.pdf
There's a table on one of the slides.
73, Jim Brown K9YC
__
Elecraft mailing list
Home: http
On 12/3/2010 12:16 PM, Brian Alsop wrote:
I'd really like to find some affordable
shielded dual center conductor stuff somewhere.
Belden makes (or at least used to make) 1901A, which is a miniature
twisted pair with a braid shield. I have some, and make some patch
cables with it. It's quite
On 12/3/2010 2:03 PM, Fred Jensen wrote:
What is a 3-circuit phone plug?
One with three contacts -- Tip, Ring, and Sleeve. Often used for stereo
headphones, and thus called a stereo plug.
73, Jim K9YC
__
Elecraft mailing list
Home:
On 12/3/2010 2:31 PM, James Sarte (K2QI) wrote:
Now what am I to believe here??? If I understand what was written in
the manual, then it's ok to use a mono plug in those jacks as they're
buffered by a series of resistors.
The manual is correct -- the HEADPHONE output is isolated with
On 12/4/2010 8:33 AM, gold...@charter.net wrote:
I was not thinking about shaping but reducing the bandwith to
concentrate the transmitt energy. Kind of like narrow filters for CW.
TXEQ will do exactly that. Go through the archives to see my
recommended settings for common mics.
73, Jim
I've been downloading and installing updates that appear to add
functions. Is there an updated list of P3 commands somewhere to go with
that? The readme says they're there, but a real command list would be a
big help.
73, Jim K9YC
__
On 12/7/2010 9:16 AM, David Gilbert wrote:
there is
simply no question that the K3 user manual is a horrible piece of
documentation. There is a lot of information there, but it is
fragmented and terribly organized. I could understand how the manual
might be weak coming out of the chute, but
On 12/9/2010 11:34 PM, Ed Muns wrote:
What's right or wrong about the K3 manual is largely personal
preference. Some people want a training manual on radio usability. Others
know how radios work and simply need to know the specific K3 details.
I think most K3 users want to know
1) What
On 12/11/2010 4:56 PM, Mike K2MK wrote:
My ANTIVOX was set at 20 for
the Proset so I began to crank it up. It's up to 80 now for the CM500 and
appears to have solved the problem.
The mic in the CM500 is a VERY hot mic -- that is, a lot of level. You
may need to reduce both mic gain and level.
On 12/12/2010 6:05 AM, Mike K2MK wrote:
I'll have to do some more experimentation with the settings. And I may try
using the battery pack for bias as N1YX is doing. Maybe that would have some
impact.
That should NOT have anything to do with it. The battery box simply
allows you to not turn
On 12/12/2010 4:55 PM, Leigh L. Klotz Jr WA5ZNU wrote:
I saw a KPA500 at a local club meeting recently where Eric WA6HHQ was proudly
showing it off.
They do indeed seem to be treating it as a serious product on the way.
The slides has the obligatory not yet type accepted warning of course.
On 12/12/2010 11:14 PM, Vic K2VCO wrote:
Ah, who needs that stuff? I just had my first QSO on my new homebrew
amplifier: 900 watts
out from a pair of class-C 813's! Instant on and full QSK.
Sounds great, Vic. Congrats on your work. W8SDU, one of my first Elmers,
back c.a. 1954, had a home
the shields
of cables (like the CATV cable), where it is then radiated by the CATV
system.
73, Jim Brown K9YC
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post
On 12/13/2010 12:49 PM, Andrew Meyer wrote:
My main reason for this email to the reflector, is for help on the cable
types and connections and/or an article that explains the setup and
configuration that works. I had considered using a Signal Link but is there
really any reason to do so?
On 12/13/2010 1:47 PM, Phil LaMarche wrote:
bought a used Ten Tec Hercules II solid state amp
You betcha this is a very nice amp. Everyone I know who owns one
(including me) loves it.
73, Jim K9YC
__
Elecraft mailing list
Home:
Don't forget the Stew Perry Contest this weekend -- 160M, Saturday 1500Z to
Sunday 1500Z. This is a great CW contest, whose only shortcoming is not
enough activity. The exchange is your grid (like on 6M), and the score
for each QSO depends on the distance between your grid and the other
station's
the feedback, and I'd run the amp
pretty close to it's published rating.
73, Jim Brown K9YC
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft
a 1 watt output stage. That puts a peak loudness of
91 dB in our ear for CW, and about 10dB less for SSB.
73, Jim Brown K9YC
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net
On 12/22/2010 8:15 AM, Bill Davis Jr wrote:
I have had similar issues with my K3/10, but I was asking for trouble. I
have an involved external sequence switcher and band decoder for all the
VHF/UHF/Microwave transverters. Involved is an unshielded wire that runs
between my sequencer
On 12/22/2010 9:44 AM, Derf Mockford wrote:
The amp is very
stable and all mods took about 3 hours to complete.
If you're running the barefoot K2 higher than 10 watts, you should
probably take a careful look at the output of the ALS600 on a good
spectrum analyzer. I've heard good engineers
On 12/26/2010 11:10 AM, Gary K9GS wrote:
Your thoughts and comments are appreciated.
Some observations. You've pretty well hit many of the K3 advantages. One
BIG one you left out is the very strong customer-oriented,
customer-responsive Elecraft management, and easily accessible support
by
transformers can pick up magnetic fields. Thus, while a transformer can
break the magnetic loop and prevent coupling from the loop to the
system, cheap transformers can also CAUSE hum coupling. The
transformers used in the K3 are unshielded. Shielded transformers are
expensive.
73, Jim Brown
On 12/29/2010 7:47 AM, John Cooper wrote:
the company that made it went out of buiseness.
It was not a company, it was shareware, written by an individual, and he
retired from developing and supporting it several years ago. With his
permission, I put the final version on my website as a free
or computer virus with the same
functionalities and payload once executed on the system.
Not sure if it's a bogus message or is really a threat.
73,
Rich - K1HTV
= = =
-Original Message-
From: Jim Brown [mailto:j...@audiosystemsgroup.com]
Sent: Wednesday, December 29, 2010 11:41 AM
On 12/30/2010 2:51 PM, Chuck Teeter KE9CE wrote:
I am unable to get my Windom in the air due to weather conditions, snow,
etc., so I'm wondering if anyone has any experience with any indoor antennas
that at least would allow me to have a few QSO's even if they're relatively
close.
If your
On 12/30/2010 1:55 PM, Jack Colson wrote:
No problem here using AVG 2011, runs fine.
Thanks for all the input. I'm leaving the software there for anyone who
needs it.
73, Jim K9YC
__
Elecraft mailing list
Home:
On 12/31/2010 4:42 AM, Bob Naumann wrote:
Is there a non-engineer's guide to the Sherwood table for those of us who
are not engineers?
Certainly one of us could write up a guide to it, but a better way is
for you to find and study the material ARRL has written about this to go
along with
. It
is VERY important to set levels correctly. If you don't, you can create
a lot of interference to other PSK users. It's easy to get right if you
follow the instructions.
73, Jim Brown K9YC
73, Jim K9YC
__
Elecraft mailing list
On 12/31/2010 2:46 PM, Kok Chen wrote:
If you have already turned on VOX in DATA-A mode and nothing works still, try
measuring the sound card's audio with a multimeter. Something like an old
Fluke 76 can easily read AC waveforms of 2 kHz.
Or just pull the plug and LISTEN to the sound card
On 1/2/2011 11:31 AM, Stephen Prior wrote:
In the meantime I would be pleased to hear any
comments.
The condition you describe is not at all surprising for an antenna
that's half the length it needs to be for an acceptable match.
73, Jim K9YC
On 1/2/2011 12:03 PM, Stephen Prior wrote:
I don't have a good enough ground to feed the antenna as a Marconi so my
options other than lengthening the antenna are rather limited.
Don't give up so easily. In Chicago, I used a big wrought iron fence
plus a dozen or so 30 ft long wires as
On 1/3/2011 12:27 PM, Dave Hachadorian wrote:
I have settled on 2.7, 1.8, and 250.
That would be my first choice as well. I started with 2.7, 1.8, and
400, then added 250. In a CW or RTTY contest, I wouldn't be without
400 or 250. I mostly run the IF between 400 and 200. A 1.8 roofer is
On 1/10/2011 5:42 AM, py5eg wrote:
Has someone tested for yaesu rigs? What are the results?
Yes. A few months ago, I made a simple adapter to connect a CM500 to an
FT1000MP for use at PJ4A. I checked it out with the MP that's still on
my shelf (and for sale), and got critical on the air
and amplified. If it is modulated RF, it is
often detected, and is a common cause of RFI.
73, Jim Brown K9YC
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post
impedance is a minimum value. Most professional
mics have an impedance of 150-250 ohms, and most pro mic inputs have an
input impedance of at least 1K-1.5K ohms, and there are excellent
technical reasons for values of 5K ohms or greater.
73, Jim Brown K9YC
Member, AES Standards Committee and WG
Guy,
Look at Fair-Rite 2643167851 This MIGHT allow several turns of some
smaller window line, maybe enough to be useful at HF. Remember that you
need a complete magnetic circuit, so this makes it unlikely that ferrite
parts designed for ribbon cable will fit your need.
I assume you're
On 1/13/2011 8:24 AM, Tommy Alderman wrote:
SOMEWHERE in my pile of papers I have a CM500 headset owners paper!
Can someone please tell me what the tip and ring connection are for the
microphone? I assume the base is the ground connection.
Audio appears between tip and shell. As nearly as I
connections in a ham
station. There's a lot more about these issues on my website.
http://audiosystemsgroup.com/publish.htm
73, Jim Brown K9YC
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http
On 1/14/2011 6:33 AM, Guy Olinger K2AV wrote:
What happens with the Yakencom 160-6 transceivers at 6m?
More to the point, what happens on any band 10dB below S9? The rigs
I've measured with an HP generator have really lousy linearity,
typically 3dB per indicated S-unit below an indicated S6.
/RFI-Ham.pdf
73, Jim Brown K9YC
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net
This list hosted by: http://www.qsl.net
Please
On 1/20/2011 9:03 AM, Wayne Burdick wrote:
P3 rev 1.00 is virtually idential to 0.50, functionally, but has some
bug fixes.
I gave 0.50 a good workout during a contest last weekend. The new
functionality is exactly what I was looking for. You guys hit it out of
the park with this one. Many
my previous post in this thread for a
link to the tutorial.
I use lots of the 0431164181 clamp-ons here.
Yes,something this size is quite useful for quieting down noisy computer
and audio gear.
73, Jim Brown K9YC
__
Elecraft mailing
On 1/21/2011 4:56 PM, Chris Hembree wrote:
I am helping a friend track down some RF noise that is riding on the Cable TV
line. From CableONE TV and internet service.
htytp://audiosystemsgroup.com/RFI-Ham.pdf
Very likely it is riding as a common mode signal on the coax leaving his
TV. Maybe
On 1/24/2011 10:31 AM, Ken Chandler wrote:
I'm more interested in how the KPA 500 handles a full blown 48hr CW contest
with full QSK.
What connections are on
the rear panel, etc.
I just hope someone from the contesting brotherhood has it and given it a
really good workout!!
Contesters
On 1/25/2011 8:59 AM, N2TK, Tony wrote:
Having the capability to go to 1500W in these situations may make the
difference between working a new one and not working the new one.
I used to be one of those 100 watts is plenty guys -- licensed for 55
years now, I bought my first amp in 2004. Now I
have input filter caps, the cap in the
linear supply is much larger (and the transformer is usually more
robust), so the inrush current will usually be greater.
There's a tutorial view of all of this in the audio section of my website.
http://audiosystemsgroup.com/publish.htm
73, Jim Brown K9YC
On 1/25/2011 3:08 PM, Bill W4ZV wrote:
I enjoy operating QRP from portable sites using makeshift antennas but I
give 99% of the credit to the guy on the other end.
I strongly agree.
73, Bill
P.S. I run 1.5 kW on Topband but always get a thrill working QRP callers.
Same here. I have a lot
too much variation from hour to hour, and from antenna to
antenna, for this to be as useful as it might appear.
73, Jim Brown K9YC
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net
On 1/28/2011 7:37 AM, Ross Primrose N4RP wrote:
What I'd really like to see is a second antenna port that I don't have
to pay $300 for since it's bundled with an antenna tuner I don't
want/need
YES!
73, Jim K9YC
__
Elecraft
of my specialties.
:) Please let us know the exact model number so that we can post it to
the RFI email reflector.
73, Jim Brown K9YC
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http
On 1/30/2011 3:19 PM, Brian - N5BCN wrote:
There are only two wires connected to each TV: A/C power and a HDMI cable to
the DVR (cable is plugged into the DVR, not the TV). The DVR is always on
to record show when the TV is off.
With the TV on, I unplugged the HDMI cable and viola!, no RFI.
On 1/30/2011 4:15 PM, Guy Olinger K2AV wrote:
That's until they are really weak and wasting precious QSB peaks with /QRP,
or they are really really weak and they are sending RP6AN/QRP and I'm
copying P6NQ?/R.
YES!
BTW -- I was weak when we worked last night because I chose to run 100w,
in
On 1/30/2011 5:34 PM, Brian - N5BCN wrote:
This suggests to me that the source is indeed the DVR and
it's generating RFI on the HDMI cable.
The possibilities are more complex than that -- it could still be the
signal from DVR is causing the TV to generate the trash.
From your description,
On 1/31/2011 3:30 PM, ab2tc wrote:
I did notice that, but as a whole this expedition so far has been a
disappointment with barely a pip heard here. The pictures shows just one
vertical antenna up on the rocks, not an ideal arrangement even if they have
lots of radials. Is that all they have?
audio feeds to a ham rig,
including all digital modes and voice playback for contesting.
73, Jim Brown K9YC
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post
On 2/6/2011 7:10 AM, Dave Hachadorian wrote:
I do RTTY and SSB contesting too. I settled on the stock 2.7 for ssb
ragchewing, 1.8 for ssb contesting, and 250 for cw and rtty contesting. I
had some others, but sold them. In the config menu, tell the K3 that the
1.8 is really a 2.1, and tell
On 2/6/2011 7:28 AM, Joe Subich, W4TV wrote:
The 400 Hz INRAD is probably the best compromise. Wide enough for
tuning the band but good skirts/reasonable selectivity. The 250
would seem to require rather critical tuning.
The words would seem suggests that you have not actually used the 250
On 2/7/2011 3:02 PM, Brian Alsop wrote:
No, the gain is not constant across the segment, it is tapered so that
setting two adjacent ranges to the same level creates a flat response
across the boundary.
Right. To understand this, it's important to realize that filters
implemented in DSP
-Ham.pdf to
understand this.
73, Jim Brown K9YC
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net
This list hosted by: http
On 2/8/2011 9:49 AM, Jorge Diez - CX6VM wrote:
If I add a KFL3A-250 (250 Hz 8-pole) filter I will notice it better to use
in contests? Or with the 400Hz is enough?
Jorge,
I find that the 250 Hz filter helps a lot when there are strong signals
very close to a weak station. I bought one a year
for suppression
will yield a VERY low circuit Q. Values on the order of 0.5 are typical
for Fair-Rite #31 and #43. That means the resonance will be VERY broad
(typically covering a frequency ratio of 3:1 or 4:1 for decent
suppression, and up to 8:1 for #31 below 5 MHz).
73, Jim Brown K9YC
On 2/9/2011 8:23 AM, Scott Ellington wrote:
The additional noise reduction of a narrow crystal filter is negligible.
Right. While a narrower filter reduces the noise bandwidth, the ringing
of a filter with steeper slopes may increase the effects of impulse noise.
(QRM is another matter.)
thought out compromise
between processing power and simplicity of use that does almost anything
an intelligent user might need.
73, Jim Brown K9YC
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http
On 2/10/2011 1:41 AM, Arie Kleingeld PA3A wrote:
Now i'm using N1MM-MMTY-K3 in AFSK, settled for that because it is easy
and experts say it is a clean transmitting signal.
I strongly agree, PROVIDED that you are careful to properly set audio
gains in your sound card and in the radio.
Within
On 2/16/2011 4:50 PM, Ralph Parker wrote:
During my summertime 6m grid-hopping activities, it would be nice to power
a portable station (K3 and KPA500) from my Honda 2000i generator.
We had a couple of 2000i generators at our CQP setup, and at least one
of them was running a K3 with a 500W amp
On 2/16/2011 10:14 PM, Dick Dievendorff wrote:
The generator didn't like the highly varying load while running in Econo
mode (it shuttered enough that it walked off the sidewalk and ended up on
its side), but in normal full out mode it had no problems and neither did
the amp. It's an ideal
On 2/18/2011 1:05 AM, David Cutter wrote:
This is of interest to me, but is there an implication that the K3 + KPA500
MUST have an advanced inverter technology generator - providing stable
power for computers and more variety of modern generator?
NO! The issue is the GENERATOR being happy and
On Mon, 11 Jan 2010 12:22:07 -0800 (PST), Paul, PD0PSB, wrote:
No Doug, the world has not gone mad :-)
What you seem to overlook is that reproduction (even in communications)
has to be linear.
Exactly right, Paul. The late Dick Heyser, inventor of Time Delay
Spectrometry, among other things,
switching power supplies, and how to avoid it.
http://www.hottconsultants.com/
73,
Jim Brown K9YC
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post
On Tue, 12 Jan 2010 17:05:05 -0800, K6LE wrote:
I am hoping there is no advantage
I haven't tried it, nor have I seen anything from anyone who has.
BUT -- the speech processing in the K3 is VERY good and VERY
flexible, so it's hard to imagine anything you could add outboard
that could improve
On Tue, 12 Jan 2010 21:16:15 -0800 (PST), Wes Stewart wrote:
I built one years ago, but personally, I'm partial to split-band
processing :-)
That's the sort of sophisticated broadcast stuff I was referring
to. Not cheap, makes rock and roll radio stations LOUD! The Aphex
Dominator is a
On Wed, 13 Jan 2010 20:36:58 -0500, H. Cary III wrote:
Yes, RF from K3 goes to RF In, that I know; the question is does
the Key Out go to the PTT/VOX or Key In. I'm thinking PTT/VOX but I
don't want to assume and screw this up!
PTT/VOX is the connection you want.
The KEY IN is needed when
-- that depends on how you wired it when you built it, so check the K2
manual and your build notes for that detail.
73,
Jim Brown K9YC
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net
701 - 800 of 4690 matches
Mail list logo
