Since it's not in the instructions, you should leave the speaker
disconnected. Seems clear. RX audio is a secondary feature in a
transceiver.
Sometimes, obvious steps are left off from kit instructions. This is
usualy an oversight. The kit builder still needs to use some
judgment.
Sorry to
I recently began wearing hearing aids myself, so I know what you're going
through. You have to remove hearing aids to use conventional headphones, or
else you get audio feedback screeching. When you remove hearing aids, if you're
like most people, you lose ability to hear higher frequencies,
I neglected to disconnect my antenna, and a not so nearby lightning
storm fried the 1N5711 diodes in my KAT100. From reading the reflector,
this seems to be a somewhat common occurence, but I have not seen
any suggestions about circuit changes. Looking at the data sheet
for the 1N5711, it does not
Take the panel to your choice of auto paint shops. Maaco comes to mind.
Brgds,
Dave, N3HE
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Very neat, Leigh.
For those with iPods or iPads, there is a set of apps written by Luca
Facchinetti that include waterfall displays, decoding and sending of PSK31,
RTTY, and QPSK. I have found them useful in preparing my emergency response
kit. They are named Multimode and IKpsk.
Monty
I think an auto body shop would have a hard time matching the texture and I
doubt they could paint it for less than the cost of the panel from Elecraft.
That being said, the front panels of my K3, P3 and KPA500 all had flaws in the
finish from the factory. The K3 front panel had a paint
something I don't see in the specs of the KPA500, and I wonder if possible
the ability to have the KPA500 remember which antenna to associate with which
band, and appropriately switch a remote electronic antenna relay. Automatic
amplifier band switching is of limited usefulness unless the
Kevin,
I cannot comment on your proposed diode substitution. A long time ago,
the 1N5711 was chosen for the K2 wattmeters (actually for the original
diode detector in the K2) because it tested more constant with respect
to frequency than all others tested. I would suggest that you test the
Fred,
I would think the KPA500 would be using the same antenna system as is
being used by the K3.
If that is the case, any automated antenna selection system that was
used by the K3 would also be used when the KPA500 is in-line. So I fail
to understand why that additional capability needs
You guys lost me.
The KPA500 has one input and one output. If you want to use a particular
antenna on it, it must be routed to the KPA500 by the K3. It's a one to one
deal.
I'm hoping the KAT500 can select from more than 2 outputs.
Larry/K2GN - http://k2gn.com
K-Line - K3 S/N - 3278P3 S/N -
You guys are all very logical but long ago I learned something about writing
procedures from the world of fiction writing, If you mention the rifle hung
over the fireplace, it has to go off (be fired) before the story ends.
In a procedure it's always a legitimate question to ask, If they
Fred:
The KPA500 doesn't have antenna selection, automatic or otherwise. It has
one input SO-239 connector for the transceiver and one SO-239 connector for
the amplifier output.
One way to approach this, used by many, is to use the K3 band change lines
on its accessory connector to control an
I've been using a KRC2 for a couple of years. It's an easy build and easy to
set up.
I've never had a problem with it.
73,
Tom
Amateur Radio Operator N5GE
ARRL Lifetime Member
QCWA Lifetime Member
On Sun, 10 Jul 2011 07:35:40 -0600, Fred Maas just.one.h...@gmail.com wrote:
something I don't
Please accept my apology,
The speaker volume changes when I change the AF Limiter but
the line output is the same, that is, the AF limiter has no effect
on the line level.
The signal still dissapears when the RF gain is at max and the
signal is still audible at the speakers.
-
Jack
Thanks Don,
I do plan to evaluate the protected diodes (or better diodes if someone
suggestions them) before using them.
I do have DC paths for the antennas and an antenna switch at home, but
I've been using the K2 here in Europe while traveling with temporary
antennas and an antenna switch is
Withe the AGC off, if the line level is above a setting of 10, the signal,
if you will, falls apart.
I did a test where I tuned to WWV at 10MHz with the AGC off. I must have
increased the setting at one time to 20. The default is 10. The line out
falls
apart when the setting is 11 or higher.
There is a warning about that sort of thing in the manual on page 20 -
Section on Line Out.
The audio increases substantially when you turn the AGC off, and you are
likely to drive the transformers into high distortion levels. This was
discussed at length early in the life of the K3 - see
Lew and Bill,
You are both lucky if you can wear headphones without using your
hearing aids to copy signals well. I am nearly deaf without
mine. Increasing volume does not add comprehension. My hearing is
35 dB in both ears with roll off to nothing above 800-Hz.
But I use a pair of Sony
After seeing K6MGO's question about headphones for the hearing impared, I
though he and others may want to know how I get around my tingitus hearing
problem:
1)I feed a set of Shure SE 115 Sound Isolating earphones and a Heil Pro-Set
Plus into an ILUV i111 splitter with dual volume controls,
Although I don't have hearing issues serious enough to warrant hearing aids, I
do like wearing headphones and spent quite a while finding any that were as
comfortable as the multi-hundred dollar ones we used to use in the military
years ago. I settled on a Yamaha CM-500 headset as I do a fair
Thanks for reply. That is what I thought.
I am not familiar with the various outboard devices to which you refer (as
have never needed them). I am not suggesting that the KPA500 needs
additional antenna outputs though that is one way to do it. That would
constritute an internal antenna
Something to remember is that your coax switching needs to handle
high-power. If it is rated at 500w it will likely fail; go for at
least a kilowatt. Manual multi-position switches are common. But
using coax relays is an option if you need fast switching for contesting, etc.
Just remember
Thanks!
This project doesn't do decoding, just display. But it's a good DIY project
to learn about how these thigns work, and you can extend it yourself. I've
provided a few ideas for more work that anyone can do.
Leigh/WA5ZNU
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It's been about 3 months since I made the adjustment. If I remember, I was
feeding
the line out to the computer sound card and the level wasn't very high. I
was trying
out the MT63 software. I'll probably invest in a Rig Blaster.
-
Jack WA9FVP
Willco Electronics
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View this message in
Page 45 of the K3 manual gives me 4 points to Forcing a Firmware Download.
I have tried this many times to no avail.
The screen stays MCU LD with back light off with the TX Led flashing.
No matter what I do nothing changes.
I believe the problem may be seeing the Com Port or not seeing it as
the
Chris,
What happens when you instruct K3 Utility to Test Communications -
click on the Port tab to get to the proper screen.
Test Communications greyed out? That says either the port selected does
not exist, has its cable unplugged, or communications with the K3 cannot
be established (the
Yes, the band data lines can be paralleled to the KPA500 and another antenna
switching device. The KPA500 order page offers an optional accessory cable
kit for use with the K3 (KPAK3AUX) that contains of a cable and a Y
connector for the AUX connector for just such a purpose.
The advantage of
Chris: Please check K3 Utility Help on Troubleshooting - MCU Load. It has
a step by step procedure to recover from this situation.
Start the K3 Utility.
Help Menu
K3 Utility Help
In the Contents tab on the left side Click the + signs next to K3 Utility
Help and under that, Troubleshooting, and
Oops!
We don't offer an antenna switch.
Sorry, Jack!
73 de Dick, K6KR
-Original Message-
From: Willard Myers [mailto:k...@me.com]
Sent: Sunday, July 10, 2011 12:10 PM
To: Dick Dievendorff
Subject: Re: [Elecraft] KPA-500 Question
On 2011.07.10, at 15:02, Dick Dievendorff wrote:
Fred and all,
As Dick's post stated, the K3 band data outputs can be paralleled with
the KPA500 lines.
The KPA500 has internal protection diodes to isolate it from external
band decoders that might damage the KPA500 band data input circuits.
The only catch is that currently the K3 has
I'll probably invest in a Rig Blaster.
If you're looking for more level from the Line Out (or more drive to
a sound card), don't bother with a RigBlaster. If you look at their
documentation, you will find there is no receive audio connections
(except for the RigBlaster Advantage that is a me
Do not forget to see
http://www.i1qod.it/prima.htm
My favorite is The New Iambic.
These paddles have a serial number.
Benny OH9NB
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Help:
Propagation was very poor today. Signals were generally weak and plagued by
rapid and deep QSB. There was also a QSO at 14.3045 that bothered us, so we
QSY'ed down 1k to 14.3025. No discussions followed check-ins. We had 13
participants over a 13 minute period. Hopefully it will be better
And note that power must be disconnected, not merely turned off.
73, Mike NF4L
On 7/10/2011 3:08 PM, Dick Dievendorff wrote:
Chris: Please check K3 Utility Help on Troubleshooting - MCU Load. It has
a step by step procedure to recover from this situation.
Start the K3 Utility.
Help Menu
Thanks to all the very very rapid replies.
I am pleased to say all is now functioning correctly and K3 is like new
again.
Cheers to Dick K6KR for pointing me exactly where I needed to go.
THE HELP MENU
Which is where I should have gone in the first place.
PS to all concerned this Digest is
Using the Elecraft software link to get the Prolific web site I
downloaded the file, PL2303_Prolific_DriverInstaller_v1417.zip
http://www.prolific.com.tw/support/files/%5CIO%20Cable%5CPL-2303%5CDrivers%20-%20Generic%5CWindows%5Callinone%5CPL2303_Prolific_DriverInstaller_v1417.zip
. In my
If the band decoder devices have their own pullup resistors
(especially those who pullup to +12 volts), the K3 and/or the band
decoder may have problems because of differences in the supply
voltage to the pullups, and the cure is to add series diodes (with
the cathode end toward the K3) to
On 7/10/2011 10:46 AM, Edward R. Cole wrote:
I have followed the critiques on the reflector for headset-boom mics
but have not bought any. Mostly the reports are on audio performance
and not comfort.
Hi Ed,
The Yamaha CM500 is quite comfortable. In the 18 months so that I've
owned mine,
A benefit of Elecraft's not including multiple antenna outputs in the KPA500
is being able to price it lower and not forcing customers to buy a
capability that they don't need. The Alpha 9500 has a sophisticated
4-antenna output capability, but that adds to the price whether it's needed
or not.
Joe is correct that the diodes will not prevent the K3 drivers from
seeing the higher voltages from an external band decoder, and if the
voltage is higher than the 5 volt level that the K3 resistors are tied
too, current will flow through the two pullup resistors. The real cure
is to remove
Bud,
What OS are you running? Win XP and later can open a .zip file with no
additional software.
On 7/10/2011 3:46 PM, Bud Morin wrote:
Using the Elecraft software link to get the Prolific web site I
downloaded the file, PL2303_Prolific_DriverInstaller_v1417.zip
Hi all,
there is a plenty of schematic about End Fed Half Wave antenna, but
all them are within the range 40-10 meter. Is there one of you who
was able to run it with a KX1 in the range 80-20 meter? The idea of
getting a wire hanged somewhere, without long radials if not a 2-3
meters
I just have to gush about a pair of K3s that we used at NU1AW/5 this weekend
in the IARU contest where we were assigned the 20CW slot. One K3 was the
RUN station and the other was the Search and Pounce rig covering only 20M.
The RUN rig had access to 3 yagis and the SP rig had a 20M 4-SQR and a
Sante,
The KX1 antenna tuner has limited range due to its small size, so I
would not expect it to tune an end-fed 40 meter dipole on 80 meters.
In addition, a half size end fed dipole is no longer an end fed dipole,
it is just a piece of wire. The half wave part says that is true. A
1/4
I called CQ for 20 minutes but heard no one respond. The first skunk I
have ever had for the Elecraft CW Net. Not a bad string though; nine full
years without a miss. Oh well, it had to happen sooner or later. I just
checked, the antenna is still attached :)
73,
Kevin. KD5ONS
Will there be a VHF/UHF all mode option for the KX3?
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Will there be a VHF/UHF all mode option for the KX3?
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Maybe. Wayne has mentioned 144 MHz, but I don't recall anything about
the possibility of 432 MHz.
The possibility of an internal transverter has been discussed, but it
may have to displace some other internal option, like the internal tuner.
73,
Don W3FPR
On 7/10/2011 6:35 PM, RFC558 wrote:
I have no financial interests in this, but a ham friend W8DA, Wolfgang has
developed some very interesting applications for ham use on an Android phone or
tablet. They are a Morse trainer, Morse decoder, DX Cluster, Psk31 decoder and
transmitter, DSP filter, DX beacon, etc. You can find these
I heard you once at 2208 on 14.0505 MHz and that was it. You were very
weak. There were a number of other stations on 14.0500 during this time.
The band was not well to the west from TX. I am QRX on 7.045 MHz now.
Will see how that does.
On 07/10/2011 05:12 PM, Kevin Rock wrote:
I called CQ
Ah, those are *beautiful* keys, Benny.
But I'm always disappointed that every custom bug maker I've seen copies the
fussy Vibroplex weight system that requires loosening a set screw and
sliding a weight to change the dit rate. And then, of course, when done
quickly during a QSO and the set screw
Very good, Chris.
This reflector also gives valuable advice on other Off-topic advice. I have
recently asked for advice about morse keys and got tremendous informative
replies. It will take me some weeks to run through all the suggested
literature.
I really like this reflector from which
My favorite headphones are Sony MDR-W08. They were $9.99 at Wal-mart. They
go in the ear and are comfortable even for (almost) full-time use in a 48h
contest.
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“Rigblaster” is a generic name I use to describe a PC/radio interface.
Barely noticeable in my photo, just above the K3 is an interface I built
back in 1985. It has line level I/O with gain adjustments and I used it to
interface 3 transceivers or receivers to tape recorders. It also works
Thanks for their help to: Dick (K6KR), Mike(KS7D), Don(W3FPR),
Dave(W8OV), and Rich(VE3KI). I have sinned. I did not give enough
background. I had, for several years, my K3 and logging programs set up
with an old IBM laptop with Win2000Pro. A few months ago the laptop
destroyed itself.
Hey All!
Please do not turn this into a thread, this thought just popped into my head
while I was walking my dog.
If Wayne Eric can get the KX3 into production by this fall, many of us will
be singing a new song to wives this Christmas Season: All I want for Christmas
is a KX3.
73,
David,
In VK we have 'Xmas in July' which is July 30/31 this year. I spose it's a
bit early to put out my stocking eh?
73's
Gary
On 11 July 2011 11:50, David Dietrich kc9ehq2...@yahoo.com wrote:
Hey All!
Please do not turn this into a thread, this thought just popped into my
head while I was
Good Evening,
What in the world has happened to propagation lately? On twenty meters
before the net I scanned the band and found a number of folks on the air.
But when I called the net I heard nothing for the entire time. First
skunk for me in nine years. I guess it had to happen
I heard no traffic on 40 this time. Propagation to TX was not working.
On 07/10/2011 10:11 PM, Kevin Rock wrote:
Good Evening,
What in the world has happened to propagation lately? On twenty meters
before the net I scanned the band and found a number of folks on the air.
But when I
Just for information purposes the panel from Elecraft is $29.40 plus
shipping. Don't know what an auto body shop would charge to paint it. I'll
try to check into that in a day or so when time permits. They usually only
paint to auto specs and colors. Don't know if it would be possible to find
I have had (2) different interfaces for my K-3 from Elecraft.
And now the new one is starting to lock up on my Windows 7 machine.
What is a good way to delete both sets of drivers, and then reload the
correct one that is in use now.
Is there a quick and dirty way?
I hope to get some good news
Had the same problem here with P3 #12. Used some rubbing compound and
took it down close to metal, then re-shot it with 1) finish paint, 2)
epoxy appliance paint. The surface isn't quite the same as original,
but it's close enough. You can also use some 800 grit emery cloth to
rough the painted
I'd love to see the KPA500 companion Antenna Tuner have a minimum of 5
antenna outputs which can be controlled automatically via the K3. This is the
only way I'd purchase a KPA500 as otherwise I'll keep my Quadra which does
automatic bandswitching nicely with the K3.
73,
Dick- K9OM
Hello Dick,
I think it is very common that many of us have more than one radio and one
antenna. Multiple antenna output and input sockets are just a logical
customer's wish.
I hope the forthcoming KAT500 will address this issue. Otherwise, I am afraid
I have to go for the others such as
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