Now crank up the voltage output on the power supply to 14.1 Volts. This will
result in a cleaner signal and lower the amp draw, thus reducing the cable
voltage drop slightly (that Ohms Law thingy again).
Enjoy your rig.
ps: I’ve replaced the circuit board in several Astron power supplies rec
Hello Paul,
Regarding the KX3 station, the DX Engineering RTR-2 will enable you to use
a receiving antenna, and it handles the T/R and protection duties nicely.
I've been using one for a couple of years with a Pixel magnetic loop on 80,
40, and 30 meters. It also has a front panel toggle switch th
yep, OHM's law lives, even after at least 61 years since i first studied it
in preparation for my novice test.
Furthermore, I'm grateful for the outpouring of ideas and suggestions
received here on this forum. I think I have learned enough to convince
myself that I have improved my situation as m
Thank you!
On Tue, Feb 26, 2019, 12:53 PM Don Wilhelm wrote:
> Tom,
>
> An 18 pin DIP socket is a generic item. Use it.
>
> 73,
> Don W3FPR
>
> On 2/26/2019 3:02 PM, Tom Johnson wrote:
> > I am building a Four Band Module K1. I got my parts a little mixed up
> and
> > installed the 18 Pin U1 s
Paul...
I've used my K2 on Field Days, operating CW on 40m into a temp dipole.
I've had no trouble landing close to 500 contacts, and my goal this year
is 600. Aside from the "elan" of using the K2 "in the field," the radio
always performs flawlessly with more than sufficient sensitivity,
sele
Howdy Jeff,
As it happens, there are several blind Elecraft fans out here. I can think of
at least four just off the top of my head, and if I think about it some more, I
can probably come up with more. I myself own a K2/100 and a KX3. One of these
years, maybe I’ll get my hands on a K3s…by that
Sent from my iPhone I am considering buying the KX two radio. I am blind and
need to find out what software I can get that has a voice synthesizer to help
me navigate this radio. Any ideas? I am an Apple iPhone and iPad user
__
Elecra
I have for sale a new/unused in box K3/0 mini $550 plus shipping and a
new/unused K-pod Control panel $175 plus shipping.
Shipping on both items will be actual cost of shipping. no more. Both items
are unconditionally guaranteed. If your not completely satisfied cost, plus
shipping will b
thought this thread was over
Bob
On Tue, 26 Feb 2019 09:17:16 -0800 Ron Genovesi
writes:
> Astron used to make s great supply. I have the same problem with
> RS-35M less then a year old.
> Worked fine for 8 or 9 months then developed a bad hum or buzz. I
> got tired of listening to it and pu
And with that, thread REALLY closed :-)
Please, no more 'last word' posting on this topic. 20 posts is well over a
reasonable OT limit.
I suspect this topic is overloading many of our other readers on the list. Just
remember - every email posted here goes to close to 7000 direct email reader
** There are only two types of countries: **
1. The ones that use the metric system.
2. The one that put men on the moon.
Dennis K4THE
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qt
Our use of the power supplies was on mountain top repeater and remote
base sites. Access was generally time-consuming and sometimes
impossible at various times of the year. The Astrons, while they could
be repaired and made to work ... at least for awhile ... were just too
unreliable and unpr
Not sure Elecraft is going to give the height of the KPA-1500 as 1.2 (Aprox)
hands in height ;-)
Ron Genovesi
N3ETA
Sent from my iPhone
> On Feb 25, 2019, at 3:36 PM, Phil Kane wrote:
>
>> On 2/25/2019 2:05 PM, ab2tc wrote:
>>
>> So, should the US commit itself to mandate the
Hmmm
Ron Genovesi
N3ETA
Sent from my iPhone
> On Feb 25, 2019, at 8:14 PM, David Lear wrote:
>
>
> But at the Pub a pint is 20 ounce’s not 16 as in the US...Sorry Eric.
>
> Dave NE5DL
>
> __
> Elecraft maili
Maybe they were bought out by MFJ ;-)
Ron Genovesi
N3ETA
Sent from my iPhone
> On Feb 25, 2019, at 10:07 PM, Jim Brown wrote:
>
> YES! This is a chronic problem with Astron supplies -- I've never seen one
> that didn't have this problem! I first discovered and documented th
Thanks
I’ll give it a try.
Ron Genovesi
N3ETA
Sent from my iPhone
> On Feb 26, 2019, at 9:54 AM, Dennis Moore wrote:
>
> I picked up a RS-50 from a SK estate, it had a terrible hum. Took the cover
> off and tightened all the hardware, hum went away.
>
> 73, Dennis NJ6G
>
>>
Tom,
An 18 pin DIP socket is a generic item. Use it.
73,
Don W3FPR
On 2/26/2019 3:02 PM, Tom Johnson wrote:
I am building a Four Band Module K1. I got my parts a little mixed up and
installed the 18 Pin U1 socket from the 2 Band Module. The socket that came
with the 4 Band Module has "18" e
On Monday, February 25, 2019 8:57:41 PM CST Wayne Burdick wrote:
> I reattached the loading coil portion of the AX1 to the KX2, without the
> whip. Then I stripped the tree-supported radial wire back a couple of
> inches, unscrewed the coil's aluminum cap a bit, and wrapped a turn of the
> radial a
I am building a Four Band Module K1. I got my parts a little mixed up and
installed the 18 Pin U1 socket from the 2 Band Module. The socket that came
with the 4 Band Module has "18" embossed below the top notch. The socket
from the 2 Band Module likewise has "18" embossed below the notch, but al
On 2/26/2019 9:37 AM, mjpilgrim wrote:
What I've gleaned to be most useful from your responses has been the
suggestions to investigate the power cord with power poles connecting the K3
to my switching power supply. Per those inputs I've fabricated a shorter
(5') cable and insured that I used the
A little piece of cork between the TX and the front of the case fixed my 50's
hum! There was something similar from the factory that had fallen out over
time.
Hank
K4HYJ
-Original Message-
> From: "Dennis Moore"
> Cc: elecraft@mailman.qth.net
> Date: 02/26/19 12:54
> Subject
0.7 V for a regular diode. I believe Elecraft uses Schottky diodes for
protection because of their lower voltage drop (0.15 to 0.45 V).
wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)
> On Feb 26, 2019, at 11:20 AM, Harlan Sherriff via Elecraft
> wrote:
>
> Diod
Diode voltage drop is approximately 0.7v per diode
Sent from my iPhone
> On Feb 26, 2019, at 2:16 PM, Jack Brindle via Elecraft
> wrote:
>
> Be sure to use a DVM external to the K3 to measure the voltage at the K3. The
> input protection diode in the K3 will cause some drop (1/4 to 1/2 volt
Be sure to use a DVM external to the K3 to measure the voltage at the K3. The
input protection diode in the K3 will cause some drop (1/4 to 1/2 volt
perhaps). What this means is that the K3 meter will always show less voltage
than is really present at the transceiver supply input.
73!
Jack, W6
I picked up a RS-50 from a SK estate, it had a terrible hum. Took the
cover off and tightened all the hardware, hum went away.
73, Dennis NJ6G
On 2/26/2019 09:17, Ron Genovesi wrote:
Astron used to make s great supply. I have the same problem with RS-35M less
then a year old.
Worked fine for
The nice thing about those linear power supplies, though, was that you
COULD repair them.
73,
Scott K9MA
On 2/26/2019 09:52, Phil Kane wrote:
On 2/25/2019 6:36 PM, Kevin McQuiggin (SFU) wrote:
Not to sound like some old codger, but perhaps designs aren’t as robust as they
used to be.
More
On 2/26/2019 07:37, Jim - N4ST wrote:
(The meter
lights have been gone so long, I forgot it had meter lights.)
Speaking of meter lights: Those #47 bulbs never lasted long at 6 V, so I
used to put a resistor in series with them. Nowadays, a white LED,
rectifier, and a resistor would work fin
Well, i have received many helpful replies both publicly here and in private
emails. Thanks to all for those ideas brought forward.
What I've gleaned to be most useful from your responses has been the
suggestions to investigate the power cord with power poles connecting the K3
to my switching pow
Astron used to make s great supply. I have the same problem with RS-35M less
then a year old.
Worked fine for 8 or 9 months then developed a bad hum or buzz. I got tired of
listening to it and pulled out a 35 Amp switching supply. Haven’t had the time
to pull it apart yet.
Ron Genovesi
I wanted to love a 45A Astron but it was heavy and hummed. Sold for peanuts
at a hamfest.
Replaced by Jetstream JTPS32MAB. Probably same as MFJ-4230MV and many
others. Small, quiet and cheap. Excellent regulation. If it dies, it is $80.
Ignacy, NO9E
--
Sent from: http://elecraft.365791.n2.na
On 2/25/2019 6:36 PM, Kevin McQuiggin (SFU) wrote:
> Not to sound like some old codger, but perhaps designs aren’t as robust as
> they used to be.
More marketplace incentive to replace rather than to repair. Then
again, no longer having a workshop or good close-up visual acuity any
more, replac
I’m heading down to Costa Rica tomorrow with a couple of friends to participate
in the ARRL DX Phone contest.
Last year we took my KX3/PX3/KXPA100 combo and were pretty happy all round with
it (the KXPA100 did seem to get upset periodically which always happened when I
was off shift, resulting
Larry, I'm curious why you'd use a homebrew cable instead of using the
Elecraft specific cable KXPACBL? It seems your cable is not performing some
function that the OEM cable provides so it makes it hard for someone to help
with your setup.
73
Scott, N1SER
--
Sent from: http://elecraft.365791.
My Astron 35M has been in use since ~1990. I had to repair it after a
lightning strike that melted the tip of my 2M Ringo Ranger. (The meter
lights have been gone so long, I forgot it had meter lights.)
A few years ago, I bought a new 35M and it was defective. Returned it for a
2nd one that was
Hi, all concerned:
The remote system is now installed and operating in the site pictured on my
QRZ page.
A 40M inverted-vee dipole at 120 ft apex height does play fairly well.
Better antennas and higher power are forthcoming
We had a long cold dark thunderstormy late session setting up the
SPE
35 matches
Mail list logo
