I just completed moving my KPA100 and KAT100 into the EC2 enclosure. I am
really pleased with the result! Spring is here! All I have to do is
disconnect 2 cables from my K2/10 with KAT2 and hook up the camper for QRP
fun in the woods of Virginia. Can someone advise me whether or not it is
neces
Yes, but the inductances are all in parallel. I built a decent dummy load
out of 24, 1200 Ohm, 10 watt wire wound resistors all in parallel between
two squares of fiberglass PC board. The SWR was only about 1.2:1 on 15
Meters and about 1.5:1 on 10 meters. Admittedly, not a perfect load, but
Rick,
When used with a logging program, the SteppIR controller only listens on
the RS-232 signalling - it does not initiate any data requests from the
K3 (it depends on the logging program to poll for that data.
If the logging program is not active, then SteppIR must poll for band
information
On Wed, Mar 25, 2015 at 8:11 PM, wrote:
> ...at some point elmers all used a lamp for a dummy load
> back in the day with Pi tuning...
-
Yep, back in 1958 I loaded up my first home-brew transmitter (6146, of
course) with a 100W bulb and I am one of the many hams who can claim to
have
All of a sudden, my SteppIR stopped tracking my K3 even though the SteppIR
controller was in General Mode. This has been working for years and I had made
no recent changes to cabling. I confirmed that CONFIG AUTOINF was set to Auto
1. Then I ran a logging program that polls the radio and the St
Oh Shucks
at some point elmers all used a lamp for a dummy load
back in the day with Pi tuning you could transfer a lot of
your output to a lamp,,, on 6 meters , as I recall ,, parts of the
filament would be brighter than other parts
we could talk about RF burns
HAR
Bob K3DJC
On Thu, 26 Mar
You guys are right!! SORRY FOR MY STUPID POST!! Sixty years ago I did not have
money for a dummy load..ENJOY 73s Bob W5RG
- Forwarded Message -
From: Fred Jensen
To: elecraft@mailman.qth.net
Sent: Wednesday, March 25, 2015 6:41 PM
Subject: Re: [Elecraft] Fw: Don't have a 50W
I had to take my primary HF station out-of-service, and rather than suffer
withdrawal, got my KX1 out of mothball and put it on the air.
My current HF antenna is a Barker and Williamson ACS110, a terminated
end-fed Vee which is similar to the Radiowavz EFT-110.
I wasn't expecting a lot from thi
Having an intermittent problem where the AGC-S changes to AGC-F in FM mode
only. Does it without entering the AGC speed menu. Sometimes just changing
bands from 2 meters to 160 meters or some other band with band buttons and
when change back to
2 meters FM AGC-F shows on the display. Has anyone els
Ummm ... several reasons. Resistance component of an incandescent bulb
impedance varies with the temperature [brightness] of the filament.
They are also somewhat reactive. Push-pull vacuum tubes and link
coupling didn't care about SWR, I don't even remember the term in the
ham lexicon until t
You may also have to turn on the text display by holding the LABELS key
once or twice.
Alan N1AL
On 03/25/2015 02:14 PM, Cady, Fred wrote:
Hi Paul,
It's in the P3 SVGA sub-menu (SVGA data), Table 9-8, page 255. :-)
Cheers and 73,
Fred KE7X
Author of:
"The Elecraft K3: Design, Configuration a
I got an email from UPS yesterday telling me that my package had
shipped, ETA today. Great! Which one? (I have a few outstanding
orders/shipments) ;o)
A few hours later, the package had actually entered the void known as
UPS allowing me to see which package was involved. It was sourced in
Hi Paul,
It's in the P3 SVGA sub-menu (SVGA data), Table 9-8, page 255. :-)
Cheers and 73,
Fred KE7X
Author of:
"The Elecraft K3: Design, Configuration and Operation 2nd ed"
"The Elecraft KX3 - Going for the summit"
"The Elecraft KPA500 and KAT500 - the K-Line Dream Station"
Printed, coil bound co
I suspect the TX Gain Calibration would fail due to "High SWR".
Yes, TX CAL will do that. You need a good 50 ohm non-reactive dummy
load good to 54MHz.
Light bulbs worked well with old transmitters that had an output circuit
that could match most anything. We did not need tuners back then -
ORIGINAL MESSAGE (may be snipped)
On Wed, 25 Mar 2015 12:05:18 -0700, you wrote:
>The key word is Resistive.
REPLY:
I have used light bulbs in the olden days, although not for the K3 cal
procedure. The trick is to insert a variable cap in series to tune out
the reactanc
Us old guys had tough tube transmitters with widely tunable output
networks that made the rigs more tolerant to our general abuse of known
electronic theory.
Eric
KE6US
On 26 Mar 2015, at 5:25 am, Bob Gibson via Elecraft
wrote:
HOW ABOUT A LAMP WITH 100 WATT BLUB, THATS ALL US OLD GUYS H
On Wed, Mar 25, 2015 at 1:20 PM, Wayne Burdick wrote:
> ...you can definitely use a 10-W dummy load
==
Yep, you can. Worked perfectly. Thanks to Wayne and again thanks to the
others who actually understood my question and provided answers.
Tony KT0NY
" Using a 100W light bulb will not provide the required impedance, and will
produce inaccurate results and possible damage the transceiver."
True, also - In the "old days" there was no need to specify *incandescent*
light bulb. Wonder what would happen with a CFL or LED lamp (do not try
this)?
T
For the calibration procedure, you need the load to be a known 50 ohm resistive
impedance. Using a 100W light bulb will not provide the required impedance, and
will produce inaccurate results and possible damage the transceiver.
73, Matt VK2RQ
> On 26 Mar 2015, at 5:25 am, Bob Gibson via Elecra
That will cause the owl to blink, thus losing orientation to True North.
Mike NF4L
> On Mar 25, 2015, at 14:25, Bob Gibson via Elecraft
> wrote:
>
> HOW ABOUT A LAMP WITH 100 WATT BLUB, THATS ALL US OLD GUYS HAD! 73s Bob W5RG
>
__
Somehow I turned off the text display on the bottom of the P3 external
display. I can not find in the Cady book how to turn it back on. Help
please.!! The text display is working fine in the K3.
NF8J
Paul
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HOW ABOUT A LAMP WITH 100 WATT BLUB, THATS ALL US OLD GUYS HAD! 73s Bob W5RG
- Forwarded Message -
From: Warren Merkel
To: elecraft@mailman.qth.net
Sent: Wednesday, March 25, 2015 1:17 PM
Subject: Re: [Elecraft] Don't have a 50W dummy load
That kit from OHR looks nicely d
If you do the TX GAIN procedure manually as described in the owner's manual,
you can definitely use a 10-W dummy load. Just allow several seconds of cooling
after aligning each band.
73,
Wayne
N6KR
On Mar 25, 2015, at 5:55 AM, Barry wrote:
> For how long does the K3 transmit at 50W in the ca
That kit from OHR looks nicely done. I wonder if the pcb was immersed in a
gallon can of mineral oil instead of the included case, how much more power
could it withstand then? 5x-10x maybe? I could use the enclosure for
something else. Otherwise I'd get a full paint can kit off ebay for about
Does it show "REV" anywhere on the screen when observing this "LSB" behaviour
in DATA-A mode?
73, Matt VK2RQ
> On 26 Mar 2015, at 2:25 am, Edward R Cole wrote:
>
> I ran into an interesting situation recently using FLdigi in CW (for keyboard
> sending). When I tuned in signals they appear to
If you have lots of atmospheric noise, you may have too much gain in your
revive chain, and should maybe consider switching off the preamp/switching on
the attenuator.
There is also the "NR" noise reduction feature which may be useful. However on
CW I find that narrowing the PBT bandwidth cuts
All,
Thank you for the replies. It seems the closest ham gear dealer to
Columbia, SC, is HRO in Atlanta. Since I live in the Atlanta area, I'll
just go visit them next week when I get back home.
Thanks and 73,
--Ian
Ian Kahn, KM4IK
Roswell, GA EM74ua
km4ik@gmail.com
10-10 #74624 North Geor
I ran into an interesting situation recently using FLdigi in CW (for
keyboard sending). When I tuned in signals they appear to be tuned
in LSB vs USB (though the radio is on 28-MHz). I checked DATA-MD and
it shows DATA-A in USB.
I have to use DATA-A for FLdigi interface. When I switch to st
I followed the discussions here and read many articles on audio
interfaces and sound cards. Thanks to everyone for their input and
discussion.
For interfacing my KX3 to a MacBook for RTTY, PSK, and other Digi modes,
I've been having great success with an interface from G3LIV. I'm using
the
>
>For how long does the K3 transmit at 50W in the calibration procedure?
>If it's just a few seconds, will a 10W dummy load handle it?
>Barry W2UP
>
Probably not, because it transmits at 50W for several seconds on every
band (even those you had 'disabled' from the normal rotation). My load
is 50W
Good Morning Group
I recall, but cant find, a link or description posted of a go bag frame kit
available online. Was thinking about building a go-bag or backpack, and
seemed to recall a kit with a collection of L-brackets and 'stuff' to build
light weight rack internal to a backpack for a rad
For how long does the K3 transmit at 50W in the calibration procedure?
If it's just a few seconds, will a 10W dummy load handle it?
Barry W2UP
--
View this message in context:
http://elecraft.365791.n2.nabble.com/Don-t-have-a-50W-dummy-load-tp7600633p7600664.html
Sent from the Elecraft mailing
Our local radio club built the RFL-100 as a soldering training project and
a kit building exercise. Everyone loved the instrument they had when all
done. OHR is hard to beat, their kits are always well documented and easy
to understand.
On Wed, Mar 25, 2015 at 8:09 AM, Mike Harris
wrote:
>
Joshua,
If you primarily operate CW or other digital modes, try using Rx
Equalization and drop anything above about 800 Hz by anywhere from 0 to
-16dB. I think if you operate primarily SSB you are stuck with having to
have Rx Equalization pretty much open above 800 Hz.
73,
Tom - W4BQF
-Orig
I have both the RFL-100 and the WM-2 from my K2 building days. They
work very well together with the Elecraft CP1 coupler for the use at the
100W level.
I've always found that analogue instruments are better than digital when
it comes to adjusting the likes of filter tuning. Small changes ar
My K3 and KPA500 and KAT500 works OK with BOSE Companion 2 SeriesIII speakers
with no RFI from 160-6m.
But does anybody know if the speakers will work OK with 13.8VDC in stead of
12VDC?
73 Borre/LA6SK
--
View this message in context:
http://elecraft.365791.n2.nabble.com/K3-and-BOSE-Companion-
Would like a Schematic for my KPA500 serial #1216 Please.
--
Rick Hill
VK6XT
Ph 0468 425 099
6xrayta...@gmail.com
Skype...Rixster909
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