I have found that the use of an inexpensive computer type fan on even low
power running behind the KX3 works well in allowing the full use of the
digital modes, to include WSPR at 5 watts full cycle of 112 seconds. Thank
you for all the thoughtful inputs. Running WSPR at 3 watts does not
FWIW and don't know how this would work on a KX3 but ...
When I still had my KPA100 on my K2, and was using the K2/100 in RTTY
contests, I stuck a brushless 12 VDC computer muffin fan to the top of
the heat sink, blowing down, with a little tab of velcro over the PA's.
I have a digital
I suggested 196khz sound card to maximize data collection for cw
skimming...Ever see 10m open during a CW contest? Even 196k can't handle
it all.
But yes, you can get back with less. On the road I often just use the
internal sound card 48k from my Dell XPS12 and then throw up a 17' wire in
the
Thanks for the information about setting up the Keyer, I would never have found
it as my unit came direct from the manufacturer.
I have 2 further questions:
(a) I have a sub rcvr in my K3 so I assume the plug marked sub RX goes to the
Sub Rx socket on the keyer?
(b) What does the the plug
True, at least from my experience. If you're on a pointy part of the
Earth [aka summit such as in SOTA], the far field effects can and often
do lower the max elevation angle to or below the apparent horizon. Most
antennas on summits exhibit a host of other inefficiencies as well, but
the
Has anyone else noticed the dramatic increase in atmospheric noise
lately? On 20M, 30M, and 40M especially, I see a wide-band noise source
wandering back and forth across the bands. At times it almost looks
like a sine wave on the waterfall display. The noise will vary from an
S3 up to a
Near field soil conditions become less of a factor with the use of
elevated radials. Consider a ground plane antenna with the base
mounted at the rooftop of a 1 or 2 story building - it is reasonably
independent of near field ground conditions because it is an antenna
within itself - much the
Ross, do check out this link it provides configurations for
many different softwares
Also available in Router (Help | Download Documents) and in the
appropriate interface area at www.microham-USA.com/Support.html
the manual appears to be very general and not just oriented towards
Parts are on order. I'll update once I have the diodes swapped. Thanks for
the help thus far.
--
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Bill,
A look at the K3 schematics will reveal that none of the Line Out
signals flow through any of the contacts on the headphone jack.
I believe your experience is just happenstance and the real source of
your problem will be found elsewhere.
73,
Don W3FPR
On 7/22/2015 7:26 PM, Bill
If you look at my (N1HEL) QRZ.com page, you will photos of my K-Line gear
arrayed in its bookcase structure, which is securely mounted to the
(extended) dinette table of my RV, which in turn is permanently braced and
bolted to the floor. (The RV serves ONLY as a mobile comms van.)
The pieces sit
Ron, the drift reports will be a better on WSPR for you if you do the KX3
extended temperature frequency calibration. Well worth doing it for modes that
depend on low frequency drift like WSPR and JT65b.
73
David Anderson GM4JJJ
On 23 Jul 2015, at 21:40, KM4VX ronce...@earthlink.net wrote:
On Thursday, July 23, 2015 03:40:22 PM KM4VX wrote:
I have found that the use of an inexpensive computer type fan on
even low
power running behind the KX3 works well in allowing the full use of the
digital modes, to include WSPR at 5 watts full cycle of 112 seconds.
Thank
you for all the
I see in the latest ARRL Letter that ARRL is upset with Home Depot for their
selling of non-residential rated lighting equipment to residential customers.
Where have they been? I wrote about a similar issue in this very forum almost
five years ago.
At 06:35 PM 7/23/2015, Ross Biggar wrote:
I have just received a Microham keyer II which
http://microham-usa.com/store/cmspage.php?page_id=16
Ross, do check out this link it provides configurations for
many different softwares
I doubt you will find a better supported piece of
I have just received a Microham keyer II which I am keen to use with my K3.
It would really help if someone who has a Microham keyer II working with their
K3
would please send me details of how they did it, as the manual appears to be
very general
and not just oriented towards the K3.
Thanks
I believe the CW skimmer is limited to 48k bandwidth, so a 196kHz
soundcard is not necessary for CW skimmer.
OTOH, if you are also using a Panadpater application like NaP3 or
Win4K3, that extra bandwidth will be desirable.
73,
Don W3FPR
On 7/23/2015 7:12 PM, Doug Ellmore wrote:
I suggested
Hello All
I recently ordered a KRX3A and KSYN3A board for my K3. I was running firmware
version 4.58 so I thought I'd better update it in readiness for the new
arrivals.
The computer I use for radio is 32 bit running Win98se, it works very well with
my homebrew logging program which
I'm running I3 utils from both Win7-64 and from Ubuntu 12.04. At
38,400 bps, neither of them take this long (4400, 2200 sec).
Are you operating that serial port at 4800 bps? You could improve
your firmware load time by increasing it to 9,600, 19,200, or 38,400.
73,
matt
W6NIA
On Thu, 23 Jul
I used to have fans as one of my categories back when I was employed as
a components engineer at Hewlett Packard. One thing I remember is that
even a small amount of moving air makes a big difference in a heat
sink's thermal resistance. You don't need a huge fan.
Alan N1AL
On 07/23/2015
If it is wide band, but not all over the entire band,, it's probably
not atmospheric noise, more likely created by humans [i.e. your
neighbors]. Especially if it drifts up and down slowly.
Odds generally are that it's correlated with the slowly increasing use
of LED and CFL lights ... and
On Wed,7/22/2015 10:36 AM, Doug Ellmore wrote:
Asus Xonar U7 USB, simple stereo interface into the sound card from the
KX3
The ASUS Xonar U5 is even less expensive, and works VERY well. I buy
from BH in NYC.
73, Jim K9YC
__
The meter has been sold.
Roger, W1EM
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On Wed,7/22/2015 6:15 PM, Al Lorona wrote:
This suggests that ground loss is sort of an impedance-matching problem.
Clearly, as your ground gets really bad your antenna can still work just fine,
even better in some cases!
Hi Al,
Several observations. First, soil influences vertically
Am installing a KXV3B into my K3 #266. The latest manual (Rev C1) says it’s
normal for one of the pins that plug into J66 to be missing (third from right
looking from front panel). In my case there is no missing pin so I’m wondering
if that, too, is normal? Anyone come across this? It would be
Many thanks, Don.
Keith at Elecraft sent me a direct reply too - good service as usual. My
question answered in just over an hour!
It is as you say. There is nothing on the KXV3B pin in question so there is
no need for it to be removed in the case of an early K3 like mine that does
not have
Geoff,
Look at the mating female connector. If there is a plug in that
connector that matches the third from right pin, you will have to remove
the pin.
Those are keying pins to assure that you do not misplug the connectors
by being one pin off.
If there is no keying plug in the female
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