Hi Group,
Has anyone successfully used the KPA500 with the Icom 7100? I use the Icom 7100
remotely and would like to throw some power behind it. With the KPA500's remote
management software and capabilities, it is obviously first on my list.
Just wondering if anyone has any tips or comments
Any particular reason why heatsink compound shouldn't be used between
the K144XV module and the K3 side panel?
Regards,
Mike VP8NO
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Hi Chad.
I ran my KPA500/KAT500 pair with my 7100 for awhile without any problems. I was
using system local, not remotely. I was in the middle of a move and after a
month or so I moved my K3 in to position and hooked it up with the KPA/KAT. I
built a cable for the purpose, that is defined in
In this recent discussion here on K3 QRM from strong local broadcast stations,
W4TV brought up the noise generated in the T/R switching diodes. In doing
some experimentation with a bandpass flter in the loop between the RX antenna
out and in on the KXV3A I have discovered something which has
Hi Jeff - I'd appreciate any advice, especially on the cabling.
This amp has always looked like the obviously choice when it comes to a remote
station.
Thanks!
Date: Mon, 10 Nov 2014 15:48:10 +
From: k...@comcast.net
To: chadwasin...@outlook.com
CC: elecraft@mailman.qth.net
Subject:
Because it is messy stuff and gets everywhere any time it is used!
I believe the thermal pads normally used are just as good if properly
fitted.
73,
Don W3FPR
On 11/10/2014 9:53 AM, Mike Harris wrote:
Any particular reason why heatsink compound shouldn't be used between
the K144XV module and
The intermod is generated in the T/R switch, which is before the RX
IN/OUT circuitry, so putting a filter in the loop won't help. It must be
between the T/R switch and the antenna, which means it has to be able to
handle transmitter power.
There is a T/R switch in the KPA100 and one in the
Just for general information, Safari and Firefox would not handle the ftp
download with Mac OS Yosemite, but with Opera there were no challenges or
problems. The beta upgrade was successful and I did not have to revert to
my Windows system as in the past. Many thanks for the improvements.
73,
Very nice working KX1 with 40 and 20 meters installed. 0.1-4 watts output.Comes
with the battery holder, the KXPD1 plug in keyer paddle kit, the KXAT1
automatic antenna tuner, and all the manuals.Serial number 2247. Lots of QRP
fun. $375.00 shipped CONUSA. Call Tomy 928-710-9231, kf...@arrl.net
Nice looking and working Elecraft QRP K1 with the KFL1-4 band filter board
installed, 40, 30, 20, and 15 meters. It will not transmit on 15m. I talked
with Don w3fpr and after a voltage check he thought that the bandpass filters
needed to be adjusted. Works great on all other bands. Output is
Hi Jim,
The first thing to try is to perform a parameter reset on the P3. With the
P3 on, hold down the MENU and PWR keys. Note, this will reset any function
keys you may have set up.
The frame rate will slow when the span is very narrow. For example at 2 KHz
span, the frame rate will slow
I see no reference in the parts list of the K144XV to thermal pads.
Neither is there any reference that I have read to thermal pads in the
installation instructions.
Sure, heatsink compound, carelessly applied, can be messy but given
there is an oft reported issue with heat and the K144XV it
On Sun,11/9/2014 2:18 PM, Phil Wheeler wrote:
How much power out were you running on RTTY with your KPA500? I'm
interested because I have the amp, but have not yet used it on digital
modes (use the K3 barefoot at 25 W or so).
During KPA500 beta, I was loaned one for a major RTTY contest
N8WTT KX3 Heatsink For Sale. Direct replacement for original KX3 heatsink
using original hardware. Helps solve overheating problems when using digital
modes or extended QSOs. Like new; original cost $90; asking $75 shipped.
Also listed on www.eham.net with picture . 73, Bob W7BVEmail:
On Mon, Nov 10, 2014 at 9:34 AM, Jim Brown j...@audiosystemsgroup.com
wrote:
On Sun,11/9/2014 2:18 PM, Phil Wheeler wrote:
How much power out were you running on RTTY with your KPA500? I'm
interested because I have the amp, but have not yet used it on digital
modes (use the K3 barefoot at 25
I have a K3 S#00750 that is extra to my needs at present. It has the following:
K3/100 KAT3
KRX3 KBPF3
KFL3A 1.8K
2.7 K 5- Pole
KAT500-K
$ 3000 + shipping to U.S. Address + Insurance SHIPPING BY FEDX
thomas.mahaneyn...@yahoo.com
Anyone using the P3 with the YAESU FTDX-5KMP ? Just curious how it performs.
73, Dick, W1KSZ
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I should have been more specific in my request:
Are there any features in the P3 that are not available when you use it
with the
FTDX-5KMP ?
73, Dick, W1KSZ
On 11/10/2014 12:21 PM, Richard Solomon wrote:
Anyone using the P3 with the YAESU FTDX-5KMP ? Just curious how it
performs.
73,
That worked!
Thanks!
jim ab3cv
On Mon, Nov 10, 2014 at 12:13 PM, Paul Saffren N6HZ pa...@elecraft.com
wrote:
Hi Jim,
The first thing to try is to perform a parameter reset on the P3. With the
P3 on, hold down the MENU and PWR keys. Note, this will reset any function
keys you may have
K2 #4801 For sale with the following modules
160m
SSB
Audio Filter
Noise blanker
Battery bracket and charger No battery installed.
QRP antenna tuner
computer interface
Also for sale in separate box
KAT100 antenna tuner
KPA100 100watt amplifier
Both units are in good condition some minor
Just wait - Oaks grow...
Best regards (I couldn't resist!)
Jerry, W1ie
-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Rick
Bates, WA6NHC
Sent: Thursday, November 06, 2014 10:35 PM
To: James Bennett
Cc: Elecraft Reflector Reflector
Subject: Re:
Hello
I am to buy a signalink and want to know which is the best way to connect it
to the K3 so I can order the right cables
Thanks!
Jorge
CX6VM/CW5W
---
Este mensaje no contiene virus ni malware porque la protección de avast!
Antivirus está activa.
http://www.avast.com
The KX3 Manual states:
Connect your computer’s audio output (Headset Jack) to the MIC jack. (You can
either wire the plug to activate the PTT line on transmit, or use VOX.) Connect
the KX3’s PHONES jack to your computer’s audio input (MIKE Jack). High-quality
shielded cables should be used.
Hi Chad,
used an IC-7100 together with my KPA500 remotely for almost a year
(before upgrading my remote station to 100% Elecraft, i.e. using a K3 +
K3/0 nowadays). Worked like a charm. Did not do any special cabling
except PTT and coax, the KPA500 takes care of the band changes
I use my kpa500 remotely with my ts480 with only a ptt lead and no issues. You
won't have an issue with your 7100.
Mike va3mw
On Nov 10, 2014, at 5:10 PM, Oliver Dröse dro...@necg.de wrote:
Hi Chad,
used an IC-7100 together with my KPA500 remotely for almost a year (before
Mike,
There is no one answer that is entirely correct, and that is why the KX3
manual cannot be more specific.
One simplistic way is to not use PTT - either use VOX or let the
computer PSK31 application set the KX3 into transmit (some programs do
it, others do not without additional aiding
if you plan to use a signalink you order it with the K3 Cables.
SignaLink USB p/n SLUSBK3
Keep in mind that you really don't need a signal link with the K3
any good sound card will work as the K3 has isolation built in. all
you need is cables with 3.5mm plugs on the ends to plug into
On Mon, 10 Nov 2014 09:34:09 -0800, Jim Brown wrote:
During KPA500 beta, I was loaned one for a major RTTY contest weekend
and told to run it with all the lights lit. I did, and it worked fine.
In the 3-4 years I've owned one, I regularly run it at full power in
digital modes on all bands,
No lectures on low power for JT, I run power depending on
propagation, or lack thereof, mostly on a dead six meter band.
Note that JT65 and JT9 are designed to be suitable for saturated
amplifiers as there is only a single tone at a time and one tone
ramps down before the next tone ramps up.
On Mon, 10 Nov 2014 19:30:01 -0500, Joe Subich, W4TV wrote:
Note that JT65 and JT9 are designed to be suitable for saturated
amplifiers as there is only a single tone at a time and one tone
ramps down before the next tone ramps up. *DO NOT* try running
PSK, MFSK, etc. modes at 600W average
On Mon, 10 Nov 2014 16:56:57 -0700, mcduf...@ag0n.net wrote:
I'm not one
to push much beyond that, as that's all the warmer it gets in JT exchanges
running power. No lectures on low power for JT, I run power depending on
propagation, or lack thereof, mostly on a dead six meter band.
I
I am looking for information on how to eliminate incidental AM when using
FSK-D.
My K3 increases power by 10% when in Space as opposed to Mark.
Thanks much, Bill, W8NN
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My K3 increases power by 10% when in Space as opposed to Mark.
Two things here ... 10% is abut 0.4 dB. How did you measure the power
difference and did you do so with an instrument with enough resolution
to accurately measure that difference at the power level you were using?
For example a
Easy. Put a decent scope on the RF envelope.
73,
Hank, W6SX
On Monday, November 10, 2014, Joe Subich, W4TV li...@subich.com wrote:
My K3 increases power by 10% when in Space as opposed to Mark.
Two things here ... 10% is abut 0.4 dB. How did you measure the power
difference and did
Not so easy even with a decent scope.
50 watts will produce 141.42 volts p-p, and 55 watts will produce 148.32
vp-p.
That is a difference on 7.1 vp-p for a 10% difference in power.
That small difference is difficult to discern on a scope at that
vertical amplitude.
Yes, a small difference in
Don et al,
I would try the Elecraft DL1 and the power turned down on the rig to about 10
Watts. The DL1 is the most accurate RF power measuring device under $30 and
competes with RF power meters costing much more. Couple it to an accurate DVM
and you have a very decent power measuring setup.
Keep in mind that this is one case where instrument precisipn is more
important than instrument accuracy.
73,
Hank, W6SX
On Monday, November 10, 2014, Don Wilhelm w3...@embarqmail.com wrote:
Not so easy even with a decent scope.
50 watts will produce 141.42 volts p-p, and 55 watts will
Precisely.
Myron WVØH
Printed on Recycled Data
precisipn
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Nah these are mostly valley oaks. They spread, just like me. ;-)
73,
Rick wa6nhc
Tiny iPhone 5 keypad, typos are inevitable
On Nov 10, 2014, at 12:40 PM, Jerry Knowlton w...@jetbroadband.com wrote:
Just wait - Oaks grow...
Best regards (I couldn't resist!)
Jerry, W1ie
First, you are quibbling about less than 0.5 dB *even at 10%*
difference in claimed power output. Second, my measurements were
taken with a watt meter capable of .01 W (10 mW) precision and the
worst case difference was less than 2% (0.08 dB) - not the 10%
claimed.
Dynamic (scope) measurements
And what if this was done this with the standard 2.7 KHz filter? Filter
passband ripple has the the stock answer to what people are observing.
Also what about dynamic vs static differences. Is it possible in the
dynamic situation the differences would be greater?
It does sound like there
As a practical matter My K3 increases power by
10% when in Space as opposed to Mark: is this
really something to be concerned about?
Phil W7OX
On 11/10/14 10:51 PM, Brian wrote:
And what if this was done this with the standard
2.7 KHz filter? Filter passband ripple has the
the stock answer
On Mon,11/10/2014 2:47 PM, dm...@nexicom.net wrote:
Keep in mind that you really don't need a signal link with the K3
any good sound card will work as the K3 has isolation built in. all
you need is cables with 3.5mm plugs on the ends to plug into K3 line
in and out.
That's not the reason
On Mon,11/10/2014 4:30 PM, Joe Subich, W4TV wrote:
*DO NOT* try running
PSK, MFSK, etc. modes at 600W average power from a KPA-500 as you
will be generating serious IMD and garbage.
Recent measurements I've done of a K3 driving a KPA500 both with pink
noise on USB and keyed CW show that not
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