I've run my K3 at 5 watts on WSPR, at up to 20% tx percentage, for a week
at a time. However, the case will get quite warm unless I run a 12v
low-speed fan pointed at the right side of the case. I'll leave it to the
engineers as to whether this is necessary, but having the case stay
stone-cold ma
I use a couple of RF limiting protection devices, each purchased on
eBay.com, with my RSP1a. One is Chinese and cost $20, and the other
is from Slovenia and cost $32 (I think). I have had excellent helpful
communication with the maker in Slovenia. From what I can tell, they
are each cons
Related...
Suggestion for connecting a kx3+kpa100 to an rsp?
Was trying to figure out how to notch out qrm yesterday that I think was
related to the contest, but not a wide enough passband on the wsjtx
integration to see the real peaks that were involved.
Have an rsp2* but have been afraid to se
Eric Rosenberg writes:
Everything seemed fine until this weekend's ARRL RTTY Roundup. After
being on the air for about 4 hours, once again there no was RF output
Eric,
Sounds like an over temperature problem. Especially if running RTTY at
near full power. The high duty cycle of RTTY can c
Hi Jonathan,I suspect when you did the factory reset you erased the factory
configuration. Contact support@elecraft and ask for a copy of the original
configuration. You will need the s/n of the KX3 as the configuration is
different for each radio. After restoring the config then try uploading t
In the middle of the ARRL 160 contest, my K3 stopped putting out any RF.
No explanation that I can think of... all of a sudden, ZERO watts out
when the radio was keyed, either by software (N1MM+ or WSJT-X) or
pressing the TUNE button. The TX LED was lit, the meter showed audio,
which I could h
If either the IF Output or the split approach with RX ANT IN and OUT is
used, the ports are protected during transmit. However, some of the
SDR receivers are in plastic / unshielded boxes and themselves may not
be adequately immune to RF. If one is concerned, it might be wise to
attempt to
Good Evening,
I turned on the rig and found 20 meters filled with a roaring, windy
sound. Just a little QSB, on 40 meters it would be worse. The sun has
thrown something at the earth. Enough of it to cause impressive
aurora. One tiny sunspot can't be this strong; unless those of cycle 25
Thanks for the replies guys. I believed that to be true but I'm glad to get
some first hand confirmation.73,Bill WE5PSent using rock and chisel
Original message From: Barry Date:
1/5/20 22:25 (GMT-05:00) To: weaverwf ,
Elecraft@mailman.qth.net Subject: Re: [Elecraft] RSP-1A
I use none. The K3s has an IF out that requires no protection. I've been
doing this for over a year with no problem. I drive the panadapter in
the Win4K3 suite with it, and it controls what I see out of the RSP.
Works like a champ with nothing special to do.
73,
Barry
K3NDM
-- Original Me
I used an RSP-1 connected to the IF out quite successfully. In the end, I
didn’t care for tying up the computer to run HDSDR. Purchased a P3 and I’m
very satisfied with the results and ease of use.
Bob, K4TAX
Sent from my iPhone
> On Jan 5, 2020, at 8:54 PM, AL7CR wrote:
>
> I used a
I used an SDR-IQ connected directly to the IF out for many years with no
problems whatever.
On Sun, Jan 5, 2020, at 2:29 PM, weaverwf wrote:
> For those of you using an SDRplay as a panadapter with the K3S, what RF
> protection do you use for the SDRplay?thanks and 73,Bill WE5PSent using
> rock
I use an RSP2 as a panadapter. I can feed it either from the K3's IF Out
connector, in which case no protection is needed, or from the K3's RX Ant
Out connector, in which case it is protected by the K3's T/R switch. In
both cases there is a signal present on the SDRplay's input during
transmit, but
Hi all,
I just finished installing and setting up the SVGA option for my P3. All
appears to be working fine, except the spectrum is displayed differently on the
monitor than on the P3 itself. The signals sit above the horizontal divider
rather than immediately at it. When adjusting the ref l
I would echo that. The used laptop batteries, I have found, usually have only
1 dead cell. Be careful when harvesting so as not to short one. Nasty if you
do.
73,
Bill
K9YEQ
https://wrj-tech.com/
-Original Message-
From: elecraft-boun...@mailman.qth.net On
Behalf Of Wilson Lamb
Se
For those of you using an SDRplay as a panadapter with the K3S, what RF
protection do you use for the SDRplay?thanks and 73,Bill WE5PSent using rock
and chisel
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecr
I have run FT8, PSK31, and RTTY a lot on my K3. Even before I
installed the 100W amp card. I have never had any problem with
the low power amplifier (LPA) with those modes. I have also run
those modes at 100W with the KPA3 with no problems. I don't
think you'll have any problems with the 110.6
Same here, I have run 2 and 5 watts using WSPR, works great with my K3.
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 1/5/20 2:05 PM, Tony Estep wrote:
On Sun, Jan 5, 2020 at 3:55 PM HP
On Sun, Jan 5, 2020 at 3:55 PM HP wrote:
> I see the lore is that the LPA does not care for long key down periods...
>
===
I often transmitted on WSPR with my K3. A long keydown can't hurt anything
when you're only running 2 watts.
Tony KT0NY
_
Hi Hank,
While intuitively it would seem that WSPR is a viable method for
performing antenna evaluations, extreme short term variability of
the ionosphere makes it into a heroic task...
The only viable method I've found -- and it works very well --
is to install a reference antenna within
Probably the biggest limiter will be the LCD. LCDs do not like cold
temperatures - anything below freezing can be a problem, but below 10 degrees
they tend to stop working and turn black. Yes, the do recover when it gets warm
- usually.
I wouldn’t want to subject my station to anything below fr
I see the lore is that the LPA does not care for long key down periods -
I was toying with using my K3 as WSPR tx on 160 and 80 fpor some antenna
evaluations. .
The lore would say its not a good idea ?
The manual is not clear to me of whether in fact there is a 160 low level out I
could use
All of our Microwave Sites and telecommunications facilities were kept at 70
degrees and 50 percent humidity. That was from Chicago to New Orleans,
Mobile and Kansas City. I also had a 2 meter repeater here in Paducah and
it seemed to like the environment it was in. Matter of fact that's the
par
I just went to Icom, Yaesu and Kenwood sites and they quoted operating
temperature ranges for all {amateur} transceivers. This was either under
a dedicated 'specs' area for each model or within the Owner's Manual
[PDF] for each rig.
73, Paul.
___
I've been having a lot of fun with the K3Y event using my K3 at 100 watts.
Have kicked in the KPA500 a few times when I have to. Currently at 15 K3Y
areas confirmed with 47 of the total 91 slots.
73, Bill NZ0T
--
Sent from: http://elecraft.365791.n2.nabble.com/
___
Forwarded Message
Subject: Re: [Elecraft] K4 Display Question
Date: Fri, 3 Jan 2020 14:12:07 -0500
From: Paul Evans, W4/VP9KF
Reply-To: w4vp...@hintlink.com
To: Elecraft de W4/VP9KF
You can see why this question is being asked. If used as a remote, then
there is no reason f
I've never seen an operating temperature spec for any ham equipment. When we
built our remote station (K3/KPA1500 in an insulated 20 ft shipping container),
my main concern was not so much temperature as condensation. Moisture is a
slow-motion disaster for unsealed, uncoated circuit boards. Vent
Wayne Burdick writes:
> I finally installed a single 50 W, 12 V solar panel on the roof for
> light backup purposes -- phone/pad/laptop/flashlight charging,
> natural-power use of the KX2/KX3, etc. Connecting the panel directly
> to automotive-style USB chargers works great when the sun is shinin
I highly recommend this local group. They often have summer interns. The
very best in nature opportunities (not just birds).
https://njaudubon.org/centers/cape-may-bird-observatory/
73 ED W2RF
-Original Message-
From: elecraft-boun...@mailman.qth.net On
Behalf Of Wayne Burdick
Sent: S
Apologies in advance for what will likely be the most OT post of the new decade.
If you know of a possible opportunity for a 16-year-old interested in wildlife
behavior and conservation, please contact me *off-list*. Griffin hopes to apply
his knowledge of animals, birds, plants, and science in
I’ve figured if I’m comfortable the radio should be also.
Sent from my iPhone
...nr4c. bill
> On Jan 5, 2020, at 2:28 PM, Bill Frantz wrote:
>
> I'm trying to specify what is needed for a radio room here at the Rivermead
> continuing care community. If I place an amplifier or a radio (K3 w/
I'm trying to specify what is needed for a radio room here at
the Rivermead continuing care community. If I place an amplifier
or a radio (K3 w/remote rig or a K4) in a shack near the
antenna, what are the environmental requirement for that shack?
What temperature range, since the minimum weath
Dear Elecrafters,
My good old K3/100 has been working fine for many years. Most of the time with
at external PA fed with 10 to 25 W. For the time being my PA is down so I am
running bare foot 50 W FT8. Some days for many hours with no problems. Some
other days the K3 is shutting down after 15 m
Mark,
I trust you are using a DMM and not a VOM or other meter that applies a
high voltage for resistance readings - those can destroy solid state
devices.
The PA transistor collectors are connected directly to the +12 volt
power rail, so a short anywhere on that power rail will be indicated
I recently picked up a 30 watt Renogy panel that was sold as a kit. It came
with a 5 Amp charge controller that was suitable for sealed lead acid
batteries so I upgraded that to a 10 Amp charger that will work with all of
the available attery chemistries, as I plan to upgrade to LiFePo4 batteries
i
I haven't observed any RFI from the Morningstar Prostar but then my small solar
setup isn't close to any antennas. I'll give that a try and let you know what I
find.
Gary
From: elecraft-boun...@mailman.qth.net on
behalf of Jim Brown
Sent: Saturday, January 4,
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