Bill,
Thanks for the additional information.
Can you tell us if you are running it on 120v?
-Bob W5OV
-Original Message-
From: Dr. William J. Schmidt
Sent: Thursday, March 3, 2022 10:40
To: Naumann, Robert, W5OV ; elecraft@mailman.qth.net
Subject: RE: [Elecraft] FW: KPA500 faults
What line voltage are you running it on? If you're not on 240v, switching to
240v would be the easiest and most effective improvement.
Doing so yields a 4:1 improvement in line voltage regulation / reduction in
voltage drop. Double the voltage, at half the current draw.
73,
Bob W5OV
delivery.
The term expedited is a misnomer as the truth is that it means
not-expedited.
73,
Bob W5OV
Hi Ray,
Paperwork is not the problem. If you pay for the shipment on-line you can
fill out the simple paperwork there as well. The real problems with
international shipments are cost
to
failures. Solid state amps are much more fragile from this perspective
than tube amps.
That said, the 1.2KFX is fully capable of 750w key down output. On CW,
PEP=AVG.
73,
Bob W5OV
could it be that 750 watts PEP is the same as 600 watts key down
H
Bob K3DJC
On Thu, 26 May 2011 06:50:48
This email was an LDE from last Saturday that somehow was transmitted today.
On Sat, May 7, 2011 at 12:17 PM, W2BLC w2...@necoastal.net wrote:
I haven't bought the K3 and P3 combo - still kicking the tires. That,
and getting a few more questions answered.
It is possible to output the P3 to
on the same band and mode, it should only enable SPLIT
without first making the VFOs equal.
The error message that it won't allow SPLIT when the VFO and mode is
different serves no useful purpose and is a waste of time. Talk about
ergonomic overhead!
73,
Bob W5OV
LU,
Aaaahnow the light bulb has
Tell him to come back and swap it out with a NEMA 6-20R (20 amp).
My 240v shack outlet has a NEMA 14-30 socket.
Has anybody encountered this before? It looks like the electrician
thought I wanted a dryer.
Leigh/WA5ZNU
On 05/03/2011 03:23 PM, Phil Debbie Salas wrote:
I run my KPA500 on
heard nothing since. So, the only
information available is that posted on their web page.
73,
Bob W5OV
Array Solutions
On 4/28/2011 7:44 AM, dave wrote:
It appears that I.C.E. may indeed be kaput.
There are three designs of bandpass filters for the ham bands. ICE,
Dunestar, and W3NQN
.
* What is transmitted phase noise and what do I do about it?
* Where does the K3 stack up in the world of transmitted phase
noise in amateur radio equipment?
Someone else can answer these phase noise questions.
73,
Bob W5OV
Upgrade the firmware in your P3 which will allow you to access either
without changing connections.
Have a K3 KUSB with the P3. It appears that if I want to connect to
my PC and run the K3 utility I must disconnect the P3 during this
process. Curious if there are other ways to enable both.
Exactly.
If his does not work with the K3 while still connected via the P3, he must
have the old firmware in his P3.
You don't need to do anything to send K3 commands with the P3 still
connected. The P3 relays the K3 commands straight on through. K3
Utility thinks it is connected directly
Sounds like RG6 - 75 ohm.
Do you really mean a foil shield on the cable? Not sure I remember running
into any RG-8 cable with foil. Might give a clue to someone if it does
have
it.
73 - Mike WA8BXN
__
Elecraft mailing list
Nope - sorry! Not RG6.
RG11 - 75 ohm.
Do you really mean a foil shield on the cable? Not sure I remember running
into any RG-8 cable with foil. Might give a clue to someone if it does
have
it.
73 - Mike WA8BXN
__
Elecraft
Don,
I often see this warning and I have some questions.
You said:
First, it is required by National Electric Code, and 2nd because it is
dangerous without it. Should you have a ground fault in your house
wiring,
Please define a ground fault as you are using the term here.
everything
That may be true regarding ground conductivity, but we don't get ANY of
the best propagation.
73,
Bob W5OV
NTX - EM12
Phil, QRZ tells me that you live in Richardson TX, north of Dallas. You
have some of the best ground conductivity in the nation! Don't try this in
most other places.
I
Why would you need to do this? Adjust it while you actually transmit then
this is not an issue.
Most of my operating is on CW. While staying in the CW receive mode I
operate the paddle to adjust speed and monitor level. The transmit relay
activates and the amplifier relay also is activated.
Joe,
My 43' antenna works very well on 160 and 80 as I have reported. In fact,
it works so well that those DX stations that I work with it are amazed -
quite frankly so am I.
Sorry, but your opinion is just that.
73,
Bob W5OV
The 43' length is a convenient non-resonant length - nothing
-UN is preferable and works very well.
I have a 43' vertical with one of AD5X's 160 and 80 matching systems at
the base fed with an UN-UN and it works great.
I use it on all bands - 160 through 10m. Check out the ZL8X online log
with my call to see how well it works.
73,
Bob W5OV
I've heard
At one time that was illegal - is it still?
But that would get you a SSB transmission modulated with a tone. Not a
CW transmission.
Mark AD5SS
On Tue, Feb 15, 2011 at 10:32 AM, n...@widomaker.com wrote:
any chance of recording the CW audio on a DVR and replaying and
recording into one
on the same band and mode,
then it should do a VFO A - VFO B, and then Split should be turned on.
If VFO B is already on the same band and mode as VFO A, then just turn
Split on.
I find that the second condition NEVER occurs.
73,
Bob W5OV
Exactly. I'm a new K3 owner (~1 week) and had
Turn your headphones around.
Is there a way to swap which side the main rx and sub rx audio appears?
My setup has the main rx on the left and the sub on the right. For
whatever
reason I find it easier to dig stuff out of the noise with my right ear.
Noticed this while hunting VP8ORK.
Having a K3 without an antenna tuner is like buying a car without air
conditioning. While you may not need it today, you might someday. And, if
you ever want to sell it, it will be worth more with it than without it.
73,
Bob W5OV
P.S. I don't always use my internal tuner, but I have used
Is your other VFO on the same band? If not, you have to do AB first.
One change that I would like to see would be that if I press and hold
Split, that it automatically does AB for me since that is obviously what
I want to do anyway.
73,
Bob W5OV
Hmm, when I hold SPLIT, I get the N/A QRQ
Sorry - forgot - this is only when you're not in QRQ mode.
I still would like Split to do the AB for me instead of telling me I
can't do split.
73,
Bob W5OV
Is your other VFO on the same band? If not, you have to do AB first.
One change that I would like to see would be that if I press
into Split mode without changing the
VFOB frequency.
I would hope that this moderate level of logic could be included to
prevent stupid mistakes instead of forcing excess key strokes and wasting
time as it does now.
73,
Bob W5OV
One change that I would like to see would be that if I press
131,172 RR DX
ED1R 339 10016114,600 Radio Club Henares
ZY6Z(@PY6HD) 30089 15:28 77,964 Araucaria DX
Congrats!
73,
Bob W5OV
Hi Guy,
Thanks for the suggestion.
Will try 10 mts with the PRE next time I go to the station. Unfortunately
I
didn´t tried it during
I operated the 10m contest this weekend with my K3 and I did have the
preamp on. In that condition, I heard a lot more than apparently could
hear me.
If this could be quantified some way, perhaps we could get away from just
comparing opinions?
de W5OV
Even though I do get a rise in band noise
From the K3 Manual:
pin 10 KEYOUT-LP (10 mA keying output)
For transverter keying, you can use KEYOUT-LP
signal (pin 10 of the ACC connector) or the KEY
OUT jack (RCA).
Hi Can anyone tell me the function/spec for pin 10 of the VGA connector
please
Thanks and 73
Bob G3PJT
Adriano,
You do not need to use the utility - you only need to set up N1MM properly.
The info to do so is here:
http://www.dseven.org/ar/n1mm-kdvr3
Mine worked great all weekend!
73,
Bob W5OV
Hello friends
After a week that i received my K3, jumped into the CQWW SSB contest
get an A or
an F when things go wrong. There's no middle ground with them.
73,
Bob W5OV
Noted. I dont blame Elecraft, however. Elecraft is just
using a cheap method of sending because, well, because
this is what we asked for...
Let me tell you my latest UPS story...
I ordered a XG2
does.
Your fellow contester's claim reveals his lack of knowledge about the K3
as it can be adjusted to sound any way you want, with nearly any
microphone.
Generally speaking, if it doesn't sound right, crank it up.
73,
Bob W5OV
P.S. I know that audio purists will not like the above advice
Jim,
Turn off the preamp in your K9AY system and you can use it on other bands.
The preamp includes a bandpass filter for 160 and 80. You should have
usable sensitivity on other bands without the preamp.
73,
Bob W5OV
What kind of antennas are most using for HF diversity receive? I wonder
Bill,
I would suggest that you start by reviewing AA5AU's wonderful RTTY
tutorial here: http://www.aa5au.com/rtty.html
Most of your questions are RTTY-specific rather than being unique to the K3.
73,
Bob W5OV
Hi, I'm new to the K3, (Aug 2010 sn 4536). I have really enjoyed it a
lot. I
The 480 uses an RJ45 connector for the mic so its' mic is not physically
compatible with the K3.
I don't know the reason, but the hand mikes for my TS440S and TS850SAT do
not
work for my K3 nor does the MH2 for the K3 work with the Kenwoods. I
recently
bought a TS480SAT but I have not
Have you tried a different power supply?
I have seen many power supplies that are sensitive to 40m RF and trip out
as you describe.
Since you already know you have 40m RF in the shack, perhaps this is a
much simpler problem to resolve?
73,
W5OV
I had an RF feedback problem on 40 meter
measurement in a 5K+ environment.
Jay
73,
Bob W5OV
Array Solutions
(P.S. Both Jay and I own K3s now).
On Wed, 25 Aug 2010 11:19:15 -0700 (PDT), Dennis KB7ST wrote:
I have the AIM 4170 antenna analyzer ( w5big.com ). I could sweep the
balun
in 1:1 and 4:1 mode is you'd like. I'm not sure
Array Solutions has the cables for connecting the K3 to either the
HL-2.5KFX or HL-1.5KFX.
If you check the archives I believe this topic is covered specifically for
that amp. I use the 2.5KFX and it provides auto bandswitching from the K3.
I use a W2 watt meter to protect the 2.5KFX in the
You probably blew away the RS232 settings in the radio when you changed to
beta firmware.
Check it again.
No Mike, the only problem I'm having is with the frequency and mode
information into N1MM. It was working just fine right after I reset the
RS242 to the correct (19200 b) baud rate;
the best results from your
K3's receiver.
73,
Bob W5OV
(always uses headphones)
Don't worry about it, Susan. Wayne has on his 'list' to include some
refinements to the KDVR3 to enable us to actually hear what is being
transmitted. Until then, my own KDVR3 is on hold.
73 de David G4DMP
Commenting as one who waited to install the DVR: as Don says, it's not all
that difficult to do.
That said, the DVR is so good, I wished I had purchased it originally.
So, I would recommend getting it now because it works so well - not
because of difficulty of installation later.
73,
Bob W5OV
no need or potential benefit in creating
something that would be somewhere in between the two.
I'm puzzled by your conclusion that 750 Hz will provide something special.
For what and for who?
73,
Bob W5OV
__
Elecraft mailing list
Home
.
In addition to the filter quality, the FilterMAX II integrates with the
Array Solutions BandMaster II band decoder using a new 4-wire control
system along with 4-wire network integration with the new 8-pak SO2R
antenna switch. Details are on the Array Solutions website.
73,
Bob W5OV
Array Solutions
W5OV
the manufacturers' instructions.
73,
Bob W5OV
Array Solutions
Tokyo Hy-Power Dealer
THP Factory Warranty Service Center
On Fri, 02 Jul 2010 10:00:19 -0700, Lyle Johnson k...@wavecable.com
wrote:
The K3 does have ALC output, but you shouldn't use it. Using ALC on
any amplifier, with any rig
exchange only.
F1 - CQ FD K8DAA K8DAA
F2 - 4A MI
F3 - tu K8DAA
73,
Bob W5OV
(1D NTX)
Paul,
This really is rather off-topic, but...
In ESM, the run-mode exchange message is composed of the his call
key (usually F5) followed by the exchange key (usually F2). You
should not have
used it
for the first time on 6m last weekend in the VHF test and it worked very
well - even without the optional preamp on 6m.
73,
Bob W5OV
First off my K3/10 is what most consider QRP. I use a used MFJ-945E
tuner on 80-6m (also used when I ran my FT-847 on HF). Supposedly
rated to 300w
Bias should be OFF.
After getting pointed to the MIC-SEL menu item (for more than fpl/bpl),
I
did change the gain to H, and that gives me some ALC. I also tried the
bias setting, but that didn't seem to make much difference.
I see some RF output when I talk, but not much. This SSB stuff
might want to hang on to your K2 for backyard excursions because of
its size, but the K3 is substantially better than the Pro3 in most
measures. The only area where the K3 is relatively deficient is in not
having a built-in pan display, but the P3 seems to fill that void quite
well.
73,
Bob W5OV
I get to solder something.
73,
Bob W5OV
My new K3, #4076, arrived this morning and is inventoried. I was
pleasantly
surprised, it has the new firmware just announced already installed!!!
Everything looks to be of exceptionally high quality, and I am overjoyed
at
the prospect
the legal
limit too.
73,
Bob W5OV
In the 1960s Henry others marketed amps for other than amateur use.
They were called ' export models'. For military, government civilian
other uses. Most would easily reach amateur limits for domestic use. The
'export models' usually had a heavier plate
like
Eimac tubes, and they have an equally Eimac-level price of about $500
each!
73,
Bob W5OV
Array Solutions
(THP and Acom Dealer)
'
I haven't operated an Acom, but note that it uses 4cx800's (as do a few
other
companies). Those have been discontinued, and not having a future source
of
tubes
note: BH is reputable and they will ship once they receive the stock.
I have dealt with them for years in photo equipment and this is not
uncommon for them to offer a low price and take a while to deliver on it.
73,
Bob W5OV
I am very glad I decided to pay a little extra and ordered mine
Yes - I see the same thing.
W5OV
After the installation of the new Rev. D DSPUPG board, RX EQ bands 1 and 2
no longer function. It's like being back before the FW upgrade that
activated those bands. I've sent a note to Elecraft support about this.
Has
anyone else noticed this?
Yes I've
Via elecraft? No.
A subscriber to the list has had his computer infected and it is sending
these out to the elecraft list. This is a fairly common thing these days.
Who ever it came from should be removed by the list admin right away.
73,
Bob W5OV
Hi guys
Just got this rubbish via
Dan,
Computer speakers are intended to play music and sound effects, not
communications audio.
Get a communications speaker. Mono, no amplifier, no sub-woofer.
Even better, use headphones.
73,
Bob W5OV
I am looking at speakers for my K3. I have looked
At the various computer speakers
The SB610 is a transmit monitor scope. It is not a bandscope. The model
SB620 was a bandscope.
The SB610 is still very useful for monitoring your transmit signal through
an amplifier for proper modulation and trapezoidal waveforms etc. Good
luck finding parts.
73,
Bob W5OV
ex- One of the Hams
to use it almost as effectively.
73,
Bob W5OV
Listening to K5D last night made it obvious to me (I'm slow...) the
benefit of a sub-receiver. The exchanges that occur by the pursuers
are impossible to find by switching back and forth between pursued and
pursuer frequencies. I'm assuming
Amen!
No flame intended, but it certainly doesn't take several keystrokes.
As a test, I set my sub-receiver to 20m SSB and my main receiver to 40m
CW (I'm beta testing the software for independent receive). All it took
was to tap A - B, hold the SAME BUTTON for split, and spin the VFO B
firmware to be safe.
73,
Bob W5OV
After using 2.57 for several months I decided to upgrade to latest
software. Started the K3 Utility, V 1.1.6.3 and had it check the website
for upgrade.
This is from the K3 Utility log:
13:31:24 K3 Utility Version 1.1.6.3
13:34:18 Opening connection
is remote, just put an external switch in the PTT line
between the K3 and your amp and mount it adjacent to the K3.
73,
Bob W5OV
Tony,
Yes, the 600 has a standby switch. When changing bands and freqs
frequently
it would be useful not to go through a bunch of manual switching. Also
consider
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