What is the lowest drive for the KXPA100 (not to produce 100W, but for lower
output), and is it possible to get the amp to run, when connected to a KX3,
with a low output power of, say, 10 watts? I'm wondering about a situation
where you'd like to have the KX3 putting out a watt or less to
Tom,
Isolate the problem.
What does the K2 display indicate? If that is correct and you can tune
the K2 with the VFO knob, then you have a problem with the N3FJP program
and should ask or support for that program.
OTOH, if you cannot tune with the K2, open it up and do the VFO Range
Tests
Jim Brown-10 wrote
The 7600 is also an RF trash generator -- clicks and
phase noise abound.
Not as bad as many others...Flex Radios the worst by far:
Model QST Rx @20 kHz Tx @20 kHz Diff Tx Wide
(-dBc) (-dBc) (dB) (-dBc)
K3 Jan 09 112 (104) 119 -7 128@100kHz, 120@360kHz
TS-599AT Aug 11 115
Is there such a thing as a noise cancelling black box you can plug in a
headset such as the CM-500 and get good noise canceling? No knobs. Just an
ON-OFF switch like the headsets have.
And thinking of the CM-500. Has anyone found a set of material covers that
fit their ear covers? I would think
I've never tried noise cancelling headphones, so my one question is, does
anyone detect ANY effect to the desired audio? In other words, any
Noise-Blanker effects or coloration of the audio?
I would suppose that, since they're designed for music, the noise cancelling
function is transparent,
The Bose QC15's are very nice for sure. The price, as with all Bose
products, is way too high. I use them for CW/ digital contests and the
CM-500's for phone contests. I like the CM-500's very much. They are very
comfortable but do not have the isolation that one would want in a multi
environment.
I use custom ear molds when on a long distance motorcycle rides. They do
provide great isolation and are comfortable for long periods. I've been using
the same set for 7 years with no issues. In addition to audiologists, vendors
are usually at major motorcycle shows and sometimes at m'cycle
I also really like the bose qc15 headphones and had been considering one of the
add on
microphones that are available, like
Expensive one
http://uflymike.com
Or
http://www.headsetbuddy.com/clearmic-noise-canceling-microphone-for-bose-qc15-headphones/
Or more generic
http://www.modmic.com
Tony,
I'm using the Heill covers that others use for the headset pro on my CM500
98% fit.
73
Arie PA3A
N2TK, Tony schreef op 26-12-2013 14:20:
Is there such a thing as a noise cancelling black box you can plug in a
headset such as the CM-500 and get good noise canceling? No knobs. Just an
Still looking for P3
Regards
Bozidar
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The noise pickup must be very close to the ear piece to allow proper and
constant phase for effective canceling. Having a separate box would mean the
phase would change if you moved your head so would't work.
I haven't noticed any noise blanker effect. There are surely minor errors in
the
These have caught my eye at my local Costco recently:
http://www.costco.com/Sony-MDR-10RDC-Premium-Noise-Canceling-Headphones.product.100083695.html
but I keep reminding myself that I have too many headsets already :)
The reviews seem decent. They probably don't have the same
construction
The audio seems just fine on typical aircraft program material with no
obvious distortion to my tin ears. The fact that I can turn the program
volume down to normal levels and hear just fine or end the constant, high dB
assault on my ears when I'm not listening at all is the overriding factor to
Howdy Gang:
As the subject says, have you ever had a WOW moment using QRP on the bands??
I just did as I answered a very weak response to my CQ on 21.060 at 1613Z.
G3YPZ called and I couldn't really couldn't copy much until I got him zero beat
and turned on the APF in my KX3.
Finally got his
I just read the second page of reviews, and there are a couple of
complaints about picking up FM broadcast radio stations. That may be a
bad sign! I have the old Heil ProSet QuietPhone (with the NC lump in
the cord), which was horribly susceptible to RFI. Something to look
out for on any model you
IS there a way to shut off the out of band transmit limits in the K3? I'm
down in the Caribbean trying to fine tune my antennas and it's impossible to
do with the limiter in place.
[Nb. Yeah I'm sure some smart guy on frequency will say fly home and get my
autek bridge.]
Dr. William
I starting to use my K2/100 in two 100% key-down modes, JT-65 and PSK-31.
What
should I be keeping in mind in protecting the output stage for the K2 and
for the KPA100?
For JT-65, since it is a QRP mode, I'm running at about 5 watts, and
transmissions are
limited to about 45 seconds. So, I'm
15 meters is a very overlooked band in my opinion.
Its open way more than 10 meters. Its quiet, lots of room.
Easy 23 foot dipole antenna and a KX3 and you are working the world,
CW or SSB. And if you can get 48 feet of wire loop up somewhere,
you will be astonished. I can always find DX CW on
When you turn PA.MODE ON, we use the KX3 alone for power levels up to 10 or
12 watts, and then enable amplification above 10 watts. The KX3's power knob
ranges from 0 to around 100 watts with PA MODE ON.
However you can turn KX3 PA MODE OFF and set the KX3 output power for the
desired KXPA100
Hi,
I just hooked up my Microkeyer 2 installed all software and the software is
communicating with the radio. However if I talk into my Mike there is no
transmit occurring via Vox or PTT on the radio.
Pi am using a Heil preset as received from Elecraft.
I have the k3 front mic cable.
I
On 12/25/2013 11:57 PM, Gary Smith wrote:
I have an Electrovoice RE-10 which
would probably be nice needs no power
Being a retired audio pro who has done a lot of recording, I have a lot
of pro mics, including several RE16s. Before I discovered the CM500
(thanks to W6XU, another audio
Pi am using a Heil preset as received from Elecraft. I have the k3
front mic cable. I have the wire marked line in on the cable to the
line in on the radio. Same for line out. I have set jumpers to non
electret. Can someone tell me what I am doing wrong.?
Elecraft ProSet has an ELECTRET mic
Very good!
Wish I had a KX3 with me so I could work you as G0PWW!
On Thu, Dec 26, 2013 at 12:18 PM, lmar...@mt.net wrote:
15 meters is a very overlooked band in my opinion.
Its open way more than 10 meters. Its quiet, lots of room.
Easy 23 foot dipole antenna and a KX3 and you are working
On 12/26/2013 4:36 AM, Bill W4ZV wrote:
The 7600 is also an RF trash generator -- clicks and
phase noise abound.
Not as bad as many others...Flex Radios the worst by far:
That does not consider clicks -- most if not all Icom radios have a
leading spike, and the keying rise time on the 7600
On 12/26/2013 8:49 AM, Dr. William J. Schmidt, II wrote:
IS there a way to shut off the out of band transmit limits in the K3? I'm
down in the Caribbean trying to fine tune my antennas and it's impossible to
do with the limiter in place.
I'm sure it's do-able -- the MARS folks do it all the
On 12/26/2013 10:04 AM, Jim Brown wrote:
It says that the 7600 is 11dB worse than the K3 -- that's 12X the
power of the trash within 20 kHz for phase noise alone!
Correction -- the 7600 is 17 dB worse than the K3, 50X the power of the
trash from phase noise.
73, Jim K9YC
On 12/26/2013 8:17 AM, iain macdonnell - N6ML wrote:
These have caught my eye at my local Costco recently:
http://www.costco.com/Sony-MDR-10RDC-Premium-Noise-Canceling-Headphones.product.100083695.html
but I keep reminding myself that I have too many headsets already :)
Is it worth 180
On Thu, Dec 26, 2013 at 10:21 AM, Phil Kane k2...@kanafi.org wrote:
On 12/26/2013 8:17 AM, iain macdonnell - N6ML wrote:
These have caught my eye at my local Costco recently:
http://www.costco.com/Sony-MDR-10RDC-Premium-Noise-Canceling-Headphones.product.100083695.html
but I keep reminding
Re: Is there such a thing as a noise cancelling black box you can plug in
aheadset such as the CM-500 and get good noise canceling? No knobs. Just
anON-OFF switch like the headsets have.
Well, sort of, Tony. In the aviation world, conversions kits have been
marketed for popular (in aviation
Bruce,
The base K2 power is proportional to the power out of the KPA100 - so if
the KPA100 is running at 20 watts, the base K2 is driving at about 2 watts.
You can run 100% duty cycle transmissions safely at 35 watts, and could
probably push it to 50 watts if you provide auxiliary cooling
On 12/26/2013 10:39 AM, Mark Petiford wrote:
Re: Is there such a thing as a noise cancelling black box you can plug in aheadset
such as the CM-500 and get good noise canceling? No knobs. Just anON-OFF switch like the
headsets have.
Well, sort of, Tony. In the aviation world, conversions
Jim,
I'd worry about sudden surges of high-intensity audio. They happen even in the
best families. Your ears could be badly damaged before you could yank the
Etymotics out. I'd never, ever use in-ear headphones in a ham-rig setting.
Oliver
W6ODJ
On 25 Jan. 2013, at 20:40 PM, Jim Brown
On 12/26/2013 11:06 AM, Oliver Johns wrote:
I'd worry about sudden surges of high-intensity audio.
YES -- this is why I consider turning off AGC a really bad idea,
especially in a contesting environment where you have the RF gain
cranked to copy a very weak station and a guy calls you with a
Yes there is a solution, it is software and might have to have hardware
installed. Best to get ahold of Elecraft and ask them.
Best regards,
Jerry, W1IE
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On 12/26/2013 11:02 AM, Jim Brown wrote:
Successful noise cancelling requires that the resulting acoustic output
AS COUPLED TO THE EAR CANAL precisely match the acoustic noise that GETS
THROUGH THE HEADPHONES TO THE EAR CANAL (caps added for emphasis) in
both magnitude and phase, and that the
Jim,
It takes longer to gouge in-ear phones out of your ear canal than it does to
fling off a pair of over-ear cans. That's the problem. A piece of radio gear
may at any instant decide to go ballistic and produce a loud buzz or whistle
that can damage you. Keeping the AGC on is not a
On 12/26/2013 1:00 PM, Oliver Johns wrote:
It takes longer to gouge in-ear phones out of your ear canal than it does to
fling off a pair of over-ear cans.
How do you know that? Have you tied both? I have, and I have NOT found
this to be true. Further, I can grab the audio gain control as
I run JT9 and JT65 very frequently with the K2/100. Most of the time, I
run 5 watts. If needed I'll crank it up to 20 watts, so I can assure you
it's quite safe at that power level.
When the linear kicks in the K2 drive power to the linearis
proportional, so if you are within the duty cycle
I have a pair of Direct Sound EX-29 headphones surplus to my needs. Low
hours use, condition excellent.
more info here http://www.extremeheadphones.com/products/ex-29-headphones
Asking $75 plus $10 postage.
73, Mike AC5P
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How do I get my credit card info to Elecraft, tnx 73 Bruce ve5rc
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Yes, I remember WOW back in the 1958 season. I was running a Heathkit Lunchbox
on 6 meters and worked everything I could hear. NOW in this century I am
doing the same with my KX3. What a kick in the A##. Happy New Year everyone.
Mel, K6KBE
On Thursday, December 26, 2013 2:32 PM, Joe
Bruce,
The direct path is to go to http://www.elecraft.com/newcc.html a secure
page will open.
The longer path through the Elecraft webpage is to click on Order and
scroll down until you see the line If you only need to send us new
Credit Card Information, or order parts not shown on our
With my Bose QC2 phones, I've never noticed any diminution in the
quality of the desired signal. Full disclosure: I'm a CW guy. I have no
idea how they perform on SSB.
73,
Steve
AA4AK
On 12/26/2013 8:30 AM, Charlie T, K3ICH wrote:
I've never tried noise cancelling headphones, so my one
I appreciate all the replies.
I learned a couple of things:
1. Noise-cancelling technology is not cheap, and
2. It's probably best that I actually audition (I think that's what
someone called it) the headphones.
I really do not need anything that will accept a mic. I am about 90% CW,
7%
The Audio Technic QuietPoint phones I mentioned before are still under $80
on Amazon. But they are on-ear types that I chose for small size when folded
up to fit in my briefcase. Besides, being noise cancelling, isolating my
ears from ambient sounds is not very important and I don't find them
Worth the money is personal taste perhaps. I tried several noise
cancelling headsets from the common passive variety with excellent
sound-proofing to several with the electronic noise removal. Without
a doubt the most comfortable and most effective headsets I compared
were the Bose QC-2. That
Anyone have a bag of prewound toroids for kpa100 or there original kpa100
toroids and wirebag? Looking to buy a set.
WT5Y
Sent from my Cricket smartphone
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I know that here in Wisconsin, Bose has an outlet store in a nearby
mall. I assume you could try on a pair although I have not done so.
On 12/26/2013 5:43 PM, Joel Black wrote:
I appreciate all the replies.
I learned a couple of things:
1. Noise-cancelling technology is not cheap, and
2.
You can get them from the 'Mychael Morohovich AA3WF (toroid...@earthlink.net)
who is an approved toroid supplier by Elecraft.
73, Ron AC7AC
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of John Cooper
Sent: Thursday,
John,
Try The Toroid Guy - Mychael AA3WF - toroid...@earthlink.net.
The KPA100 toroid set is $45.00 plus $8 shipping - he takes PayPal.
73,
Don W3FPR
On 12/26/2013 9:19 PM, John Cooper wrote:
Anyone have a bag of prewound toroids for kpa100 or there original kpa100
toroids and wirebag?
http://www.elecraft.com/newcc.html
73, John N1JM
-
73, John N1JM
K3 #5986
P3 #1752
KPA500 #596
KX3 #926
XG3
XG1
sent from my MacBook Pro
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A few years ago I got a Micro M+ charge controller for running my trail rigs
off solar power. I combined it with some panel strips from Powerfilm and it
has been a really great combo. With my KX3 and a 7Ah battery I can run
indefinitely on backpacking and camping trips - for as much as I've used
Several years ago I ordered StennHeiser on-ear noise-cancelling
headphones for reducing noise on aircraft. This was not a luxury
purchase but following orders of my audiologist to protect my hearing
always when flying.
Previously, I had to remove hearing aids and insert foam ear-plugs,
Today I called Yamaha parts dept. to order pads for my CM500. I was told
they don't supply any parts for that headset, but if the pads break down
within warranty they will just replace the entire headset. My son in law
does part time work for Yamaha, and verified that they work this way
with
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