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
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
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
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
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 w...@comcast.net wrote:
For how long does the K3 transmit
On Wed, Mar 25, 2015 at 1:20 PM, Wayne Burdick n...@elecraft.com 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
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
I can add, for those who want a good 130+ watt dummy load and are
willing to build one (a quart size Heath 'Cantenna'), take a look at
http://k4eaa.com/dummy.html.
I built 2, one for myself and another for my grandson (we did it as a
project together). It is not difficult at all.
You may
It's a good idea to check the resistance of any used dummy load, especially
one that has some age on it.
The resistance of my 30+ year old Heath Cantenna gradually reduced to 42
ohms. This was enough error for the power meter to indicate a potential
transmitter problem.
W1GA is selling
-05:00)
To: Tony Estep estept...@gmail.com, Elecraft elecraft@mailman.qth.net
Cc:
Subject: Re: [Elecraft] Don't have a 50W dummy load
Tony,
Scolding time :-)
One thing that I believe should be in every ham's shack is a dummy load
capable of handling the maximum power that your station can develop
I tried that link and my computer lit up and said it was an
...untrusted connection... .
Did there site get hijacked ??
73, Dick, W1KSZ
On 3/24/2015 2:25 PM, Don Wilhelm wrote:
Tony,
Scolding time :-)
One thing that I believe should be in every ham's shack is a dummy
load capable of
You can use it as a K3/10. The safe way is to set Config-KPA3
to PA BYP to disable the 100W amp. Now you can contact your
friends and ask to borrow a dummy load. Repeat Don's scold here.
73 Bill AE6JV
On 3/24/15 at 12:25 PM, estept...@gmail.com (Tony Estep) wrote:
Well, now I downloaded the
Not hijacked, just that there are no valid certificates for that site -
I believe it is an OK site.
Ridge Equipment does have an Ebay store, so if you are hesitant to go
direct to the site, go to Ebay and look for Ridge Equipment from there -
they should be listed in the Test Equipment
Excellent advice Don. I bought a 100w dummy load kit from OHR. It's
called the RFL-100 and it's about $40, comes in a very nice cabinet, and
takes less than an hour to build. It has come in handy more times than
I can count.
http://www.ohr.com/rfl100.htm
Oak Hills has some good goods.
73
I have heard the same thing about the original Heath Cantenna.
I have a homebrew gallon size Cantenna that I built many years ago. I
happened along some large wattage carbon resistors (about 1/2 inch in
diameter and 2.5 inches long - maybe 25 watts each) and used several of
them in parallel
I have a spare modern bird 150 watt load for sale, UK £100 + carriage if
any one needs one., Wakefield UK
Robin G1MHU
-Original Message-
From: Dave KW4M
Sent: Tuesday, March 24, 2015 10:44 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Don't have a 50W dummy load
It's
For those who may be wondering, I received some off-line emails which
actually tried to answer my question. The winner was the suggestion that I
rubber-band my little resistor array (which is actually good for 10W, not
5W as I said before) to a baggie filled with ice. Thanks to all who
provided
@mailman.qth.net
傳送日期︰ 2015年03月25日 (週三) 9:28 AM
主題︰ Re: [Elecraft] Don't have a 50W dummy load
For those who may be wondering, I received some off-line
emails which
actually tried to answer my question. The winner was the
suggestion that I
rubber-band my little resistor array (which
the TX gain calibration first and look for a proper dummy load later.
73
Johnny VR2XMC
寄件人︰ Tony Estep estept...@gmail.com
收件人︰ Elecraft elecraft@mailman.qth.net
傳送日期︰ 2015年03月25日 (週三) 9:28 AM
主題︰ Re: [Elecraft] Don't have a 50W dummy load
For those who may be wondering, I received some
Well, now I downloaded the new firmware, only to discover that I have to do
the 50W calibration. I have a 5W dummy load, but no 50W. The 5W calibration
went okay. So do I have to get a 50W dummy load before I can use the K3
again? Or should I back down to the previous firmware? Or what?
KT0NY,
Surely there's a local ham you can borrow one from
73, Ross N4RP
On 3/24/2015 3:25 PM, Tony Estep wrote:
Well, now I downloaded the new firmware, only to discover that I have to do
the 50W calibration. I have a 5W dummy load, but no 50W. The 5W calibration
went okay. So do I have to get a
Hmmm, I am trying to restore 4.86. I have haux0283.hex, hdsp0283.hex, and
hmcu0486 and hmcu486b. However, the utility says I don't have some of the
files I need. I went to the Elecraft FTP site but can't figure out how to
get back to 4.86. Anybody have any constructive suggestions?
Tony KT0NY
On
Aha, I did have all the files for version 4.83.
Tony KT0NY
On Tue, Mar 24, 2015 at 2:58 PM, Tony Estep estept...@gmail.com wrote:
Hmmm, I am trying to restore 4.86. I have haux0283.hex, hdsp0283.hex, and
hmcu0486 and hmcu486b. However, the utility says I don't have some of the
files I need.
Tony,
Scolding time :-)
One thing that I believe should be in every ham's shack is a dummy load
capable of handling the maximum power that your station can develop.
Ridge Equipment has a 50 ohm 75 watt dummy load good up to 1.5GHz for
$11.95, but you will need an adapter for UHF connectors
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