Gary, you may be trying to chop the cabbage a bit finer than necessary. If
you take a close look at the input power circuit for the K3 you will see the
power pole voltage is the voltage seen by the circuit breaker and the 100W
amp. The voltage measured by the K3 is after the polyfuse (12A) which fe
Gus,
I think your list is a very good start. It's the way started with my
first K3. After time I added more options when I could afford them.
73,
Tom
Amateur Radio Operator N5GE
ARRL Lifetime Member
QCWA Lifetime Member
On Tue, 16 Apr 2013 22:42:02 -0300, Gustavo Villada
wrote:
>Hi guys,
>
My other thought would be to put an actual "shack" on top of the knoll.
We're talking about a KX3, and maybe an antenna rotor and some lighting.
A couple of solar panels, a good deep-cycle 12v battery, 12v LED
lighting, and a small inverter for AC-only loads would knock that out,
probably for
Use your meter. BTW, I second, third, fourth... the recommendation of the
RM-35. Mine has been converted to a "smart charger" that keeps a 95AH AGM
battery charged, but before that was used normally without incident.
--- On Tue, 4/16/13, Gary K9GS wrote:
From: Gary K9GS
Subject: Re: [Elecra
My previous message on this topic was composed while I was in a doctor's office
waiting on my fiancee. To gather some data on coax, I did some Google
searching and found several "calculators" (that all seem to copy each other).
Another thing they have in common is that they all use the data I
I have a question on adjusting the voltage a bit higher for use with the
K3. I was thinking of 14.5 V, as others have mentioned, and adjusting
voltage on receive.
I have an accurate voltmeter.
Should I set the voltage with the voltmeter measuring at the DC input to
the K3 (at the power pole i
I too live in a river valley. While working DX has not been a priority to me
I have wondered what the effect of being in a valley may be. I do like Lynn
s response to what to do. Beyond that I would look into remote operation of
a rig on the knoll if its easy to get power there and its a secure loc
Maybe it's just me, but
I think before I put a whole lot of time, money and effort into getting
an antenna on the knoll, I'd do some experimentation down in the valley.
Maybe buy a really great antenna, and if it doesn't work, re-use it on
top of the knoll.
73 -- Lynn
On 4/16/2013 3:58
Gave a talk on SOTA tonight and had conversations with several other KX3
owners who have seen the same thing...
73,
Christian
AK4VV
On Apr 13, 2013 11:20 PM, "Christian AK4VV" wrote:
> Another updated. What happens is this. DVRmessage, wait interval,
> DVRmessage, wait interval, mic goes open
That's how the commercial HF stations did it. Keep in mind they used real
ladder line and NOT "window line" that is frequently mislabeled "ladder
line".
True ladder line has large diameter conductors (usually No. 12 or larger
wires) and only enough insulator bars separating them to keep the wires
Gus, are you going to be using your K3 in a marine, or extremely humid,
climate?
If not, I'd ship the K3SSKT.
The beauty of the K3 (and the KX3) is that if the budget today won't
permit adding all of the options that you want, you can add them easily
at a later date.
73 de Jim - AD6CW
On 4/
Hi Richard,
I simply build a small switch box from parts I had. One input and two outputs
that you can switch between. If you are short on parts you can probably find
everything at your local Radio Shack.
Bill - W0BBI
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Elecraft mailing
Hi guys,
I'm (old) new in ham world, I'm returning after 15 years offline...
now I have free time, and I'm reintroducing me to ham world again :)
right now I'm using local club gear, and I'm interested reenter into
hf with ssb, cw and data modes...
I has been read for several weeks about curre
Years ago I worked a chap ( maybe in Wyoming or Montana ) in a similar QTH.
He had built an "open wire" line suspended on posts with fencing insulators,
every so far, to keep the lines taut in the breeze, over a huge distance . .
can't recall for sure, but I think it could have been up a steep slop
OFF-TOPIC, press DEL if you don't want to read.
Hello elecrafters,
In the past week, I sent a number of emails to
http://www.americanmorse.com/dcp.htm about purchasing their DCP iambic paddle
kit. However, no reply has been received so far.
Could any of you advise whether this company is s
A friend is looking for a used FT-897D. If you retired one to buy your K3 (
8-) or have one available, please drop him a line (off the list) at
craiglabrum yahoo.com
Thanks
Niel
WA7SSA
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Hello Elecraft,
What is the possibility of having the power output setting displayed on VFO B
in addition or in place of one of the existing display functions?
Griff N5AG
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1100 feet of 7/8" Heliax would have about 2dB loss at 30 MHz. That's the
$7000 solution. But it works well on receive too. :-)
Something like LMR-400 will cost about $1100 and have about 7dB loss. A KPA-500
has about that much gain. I would keep it in the shack. That's the $3200
solution.
Hi Richard,
If both amplifiers use transistor switching, you may be able to simply connect the
two in parallel and use the K3 to activate whatever amp is turned on. I am sure
there must be better ways to do it, but simple often has a lot going for it.I
have the key out of my K3 connected
I can think of a number of things that could be useful in the band pass window.
In addition to the notch I would have use for an indicator for the receive
offset frequency and also the peak filter. Things could get busy unless things
were set up on a selective basis.
K6ED
I am moving and am going to be in a challenging location. I am currently
1000ft above sea level and 600ft above a valley in Oregon. I am spoiled as
currently I can make SSB contacts in Brazil using my KX3 at 10 watts and a
Hexbeam antenna. I will be moving into a valley surrounded by nearby
hill
AFAIK, that should be OK, Fred. So long as RX ANT is OFF, it doesn't
matter whether the PR6 is on or off, as it will not be in the RF path.
73,
~iain / N6ML
On Tue, Apr 16, 2013 at 11:01 AM, Cady, Fred wrote:
> The conditions are:
>
> The PR6 is powered-on (say an external supply or the K3
Like you I am still waiting for the promised P3 transmit signal monitor
option.
73 Bill NS4C
-Original Message-
Sent: Tuesday, April 16, 2013 4:44 PM
To: Bill Frantz
Cc: Elecraft@mailman.qth.net
Subject: Re: [Elecraft] P3 desires
Bill,
Your number 3 would be helpful and has been lo
My 300w brick only need RF to it no key line needed.
73,
Fred/N0AZZ
K3 Ser #'s 6730/5299--KX3 # 2573--K2/100--KAT100
P3/SVGA--KPA500--KAT500--W2
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Richard Thorpe
Sent: Tuesday
I have a K3 and want to key two different external amplifiers. The K3 has one
"key out" line this I use to key an Expert 1K 160-6 meter amp. Now that I've
installed a K144XV board I want to key a 144Mhz block amp. I wondered how my
fellow hams are keying two seperate amps separately with one
Bill,
Your number 3 would be helpful and has been long promised and was, I was
told, on the list at either number one or two...since then, not a word so
not sure when/if it will see the light of day.
I may be in the minority, but I bought my P3 with this feature in mind and
I was told it would be
I have been using the P3 for a while now and have a few desires:
(1) When the notch filter is active, show where it is in the
green filter bandwidth display. I found I could easily know when
to turn the notch filter off when using auto-notch in SSB by
watching the P3 display. I could not do th
The license is 5 months expired too.
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of tnny...@yahoo.com
Sent: Tuesday, April 16, 2013 10:59 AM
To: Elecraft@mailman.qth.net
Subject: [Elecraft] SCAM
Listing #1060014on QTH s
It's not a K3 "feature" either. It happens with my K2 for the same
reason. The computer tests the serial port and if the K2 is on, the PTT
gets keyed. No fix other than to put the rig in Test or turn it off when
booting the computer.
Eric
KE6US
On 4/16/2013 11:52 AM, Don Wilhelm wrote:
Lee,
A common feature of these these possible scams is the poor fellow who's call
they use never has an email address on QRZ.com, like this one.
Certainly raises a yellow flag of caution for me.
Rick
K6LE
On 4/16/2013, at 10:58 , tnny...@yahoo.com wrote:
> Listing #1060014onQTH seems to be a S
Lee,
That behavior is NOT dependent on when the K3 is powered up - unless the
K3 is powered on only after the computer completes its boot cycle and
the OS is loaded.
It does happen every time the computer boots - the computer port testing
will activate the DTR and RTS lines for a short time.
Bill -
Older Astron power supplies can continue to give good service, there is
no reason to replace it unlessit seems to have a problem.
One of the things that does go bad in these supplies, particularly ones
of this vintage, is that the main filter capacitor "loses its
microfarads"(dries ou
On 4/16/2013 11:01 AM, Cady, Fred wrote:
This leaves the PR6 input and output floating
We have a problem of symantics. All uses I've seen of "floating" with
respect to electronic circuits mean that the circuit has no "ground
reference."
(unlike when DIGOUT1 is high when the input and outpu
The conditions are:
The PR6 is powered-on (say an external supply or the K3's 12v output) AND you
are not on 6 m AND DIGOUT1 is low (if, say, you are using it to disable the
KPA500 on some - maybe high swr and you don't want to run the amp) AND RX ANT
is not selected.
When this is the case, DI
Listing #1060014on QTH seems to be a SCAM
AB6OZ is located in San Jose CA, yet the IP is showing somewhere in France.
(((73 Milverton
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Hi:
I recently purchased a used K3.
I have noticed the exact problem described in posts in 2008,
http://marc.info/?l=elecraft&m=121462133723056&w=2
where the K3 goes into transmit due to a connected computer's serial port
- when the computer first powers up and the serial port has not yet been
Please, please , do not transmit FM on any shortwave band except on 10m
high in the band.
Not for tuning, not for testing, not to make contacts.
Just don't.
What a waste of resources.
--
Ohne CW ist es nur CB..
73, Martin DM4iM
__
El
I haven't paid close enough attention to the PR6/KPA500 postings and would
appreciate guidance on what I need to do.
I recently added a KPA500 to my K3/PR6. I have two Y-cables connected to my
K3 for my Top Ten Devices band decoder, PR6, the FSK line from my microKEYER
II, and the KPA500. The PR
Just a note to those with or looking to acquire an Astron PS for a
100w HF station:
I have owned an Astron 35VM for many years (bought new in 1981) and
only had to replace the regulator chip when I reversed bias trying to
use is as batter charger. Otherwise perfect service. Being an
analog
I recently picked up a TPL Tempo amplifier from a local SK estate sale. The amp
is specified as a Class C (FM only) amp; 10 watts in, 110 out. The power
amplifier consists of three B40-12 transistors in parallel, with a fourth
apparently serving as a pre-amp. There are a number of old TPL amp m
If it ain't broke ... just open it up, blow out the dust, and tighten all of the screws
that connect the capacitors to the board. Then make sure the bolts on the output
connectors are tight, too.
Then settle back and use it for another 25 years.
On 4/16/2013 8:27 AM, Bill wrote:
My RS-35A has b
I use either my Astron RS70M or my RS35M at my shack in San Diego. Both are
really great. I got the larger astron for use with a couple larger mobile solid
state amps and my TS480hx.
I also have a powererx 30 amp power supply and a RS35 (no meter) at my other
shack in Texas. Both of those power
On 4/15/2013 8:18 PM, Cady, Fred wrote:
,
What I'd like to be able to do is to disable the amp on some bands (e.g. 30 m)
FWIW, I really appreciate being able to run the KPA500 on 30M to give me
200W output when I'm chasing DX in a pileup, or trying to work someone
over a very long path. The
Hi Stan,
I spent a little time investigating adding these features to the XG3
firmware. It may be possible for me to add the ability to interrupt 'W'
Morse sending with any received serial character or key press. However
adding the ability to detect when Morse is being sent (i.e. adding another
One of mine is over 30 years old ... it gets opened about one
a year to have the dust blown out, have screws/bolts checked
(filter cap terminals, etc.) and the output voltage gets checked.
Never a bit of trouble ...
My newer unit is perhaps five years old ... it gets the same
treatment also no p
John,
That presents no problem at all. The base K2 manual suggests that you
leave the probe in TP2 to allow you to adjust the filters at will, but
it also exposes the RF circuits to 3rd harmonic leakage from the BFO.
With the K2/10 that does not normally produce spurious responses that
are
Hi Fred,
I'm not sure I completely understand your question, but my PR6 is on
all the time (it is not connected to the K3's ACC port), and I just
use RX ANT on 6m to bring it in-line. This is not a problem for me,
since I do not have any other RX ants that I need to feed through the
PR6 for other
Tomy,
My first guess is that the crystal for 15 meters (on the 4 band board)
has stopped oscillating or has reduced output.
If you have a 'scope or an RF Probe, you can check to see if there is RF
at P1 on the 4 band board pin 4. Select 15 meters when conducting the test.
The 15 meter crystal
The counter probe is inside my k2/100 but not connected to TP2. However,
it is still plugged into the control board. It's just parked along the
left side panel and grounded in a dummy jack in the back corner of the
rig (as per on old tip by Tom, N0SS). Is there a chance of creating problems
if
Turning the KX3 to the purpose of antenna analyzer can be done easily using a
host program on a PC or MAC. It will only be able to give you SWR, nothing
more than that. See the KX3 Programmer's Manual for details.
If your station is so equipped, the LP-100A can be used as a vector antenna
ana
My RS-35A has been on and in use 24/7 (except during storms and
vacations) for well over 25 years. I plan on replacing it "just because"
this summer - with a new one.
Bill W2BLC
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Why switch to fm?
Just hit and hold the tune button for a cw carrier.
Disable the atu for vswr reading.
As we know swr reading requires 1w or more. Out of band transmitting with
this power setting violate you licence.
If my antenna is out of band I use a cheap swr analyser from vk.
For the posi
As of late I have been using a Powerwerx SS-30DV and I have been very
pleased so far.
http://www.powerwerx.com/power-supplies/powerwerx-30-amp-desktop-switching-power-supply-powerpoles.html
73, Mike WA5POK
--
From: "Tom Branton"
Sent: Tuesday, Ap
Now would be a good time to pull the cover off.
73 Milverton
>
> From: Richard Fjeld
>To: elecraft posting ; Mike Reublin
>Sent: Tuesday, April 16, 2013 9:37 AM
>Subject: Re: [Elecraft] K3 power supply recommendations
>
>
>I haven't pulled the cover
I just acquired a K1 with the K1-4 filter board in it.
It transmits fine on 40, 30, 20. But will not transmit on 15 meters.
Any ideas on where to start.
73! Tomy Ivan KF7GC
AZ STM NM AZ Section
NM
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Depends on the version ... some pots are mounted vertically,
some flat, some have holes in the board to adjust through, etc.
My preference is the RS-35A ... the non-metered version. I find the
metering not that accurate. Since the supplies are mounted below
the bench and I usually get the DVM
Hey, Ian (and others),
What do you think about having the PR6 powered-up and controlled-on with
DIGOUT1 while on another band with RX ANT not enabled? It looks like the PR6
input and outputs are floating. Do you think that is a problem for the PR6?
Fred
Fred Cady
fcady at ieee dot org
> -
I haven't pulled the cover on my RS-35M yet. Does it have adequate clearance
to get to the pot, or did you have to improvise?
Rich, n0ce
- Original Message -
From: Mike Reublin
To: Tom Branton
Cc: elecraft@mailman.qth.net
Sent: Tuesday, April 16, 2013 9:05 AM
Subject: Re
I tx you a "thank you" ! :-)
2013/4/16 Bruce Beford
> Rich, AC7MA explained this quite well on the KX3 Yahoo group just last
> week:
>
>
>
> The batteries and external supply are connected at the '+' end. The
> external
> supply '-' is connected to KX3 ground, but not battery '-'.
>
> With an
I've used an Astron RS-35M very happily for years. Had to turn it up a tad for
the K3.
Tip: The voltage adjustment is on the under side of the board..
73, Mike NF4L
On Apr 16, 2013, at 8:03 AM, Tom Branton wrote:
> The K3 in question is a K3/100. Thanks,
>
> Tom
>
>
>
> On Apr 16, 2
On Tue, Apr 16, 2013 at 5:31 AM, Jim Miller wrote:
> It seems like it would be an easy thing to implement in the KPA500. Per
> Band Standby.
Good idea - why didn't I think of it? Oh, wait, I did :)
http://elecraft.365791.n2.nabble.com/KPA500-feature-suggestion-band-bypass-td6247211.html
Hasn't
On Tue, Apr 16, 2013 at 4:26 AM, Tom Branton wrote:
> I think I have found a very nicely maintained and equipped K3 to purchase.
> Any purchase recommendations as to a well constructed and trouble free power
> supply?
This is a recurring topic - search for "k3 power supply" at
http://elecraft.3
Rich, AC7MA explained this quite well on the KX3 Yahoo group just last week:
The batteries and external supply are connected at the '+' end. The external
supply '-' is connected to KX3 ground, but not battery '-'.
With an external supply connected that's higher than the battery voltage,
the b
Ed,
If you are having trouble getting the K2 filters aligned, you might want
to refer to the information in the K2 Dial Calibration article on my
website www.w3fpr.com. Use Spectrogram (or another audio spectrum
analyzer) to be able to see the filter passband.
You can download Spectrogram fr
Astron RS-35M supply for a base unit, still room for some headroom for extra
items.
73,
Fred/N0AZZ
K3 Ser #'s 6730/5299--KX3 # 2573--K2/100--KAT100
P3/SVGA--KPA500--KAT500--W2
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf
Now just the question arises why the BAT display shortly raises to the
input voltage if you connect the power? ...
Holger, DH3HS
2013/4/16 Fred Jensen
> On 4/15/2013 4:20 PM, Rob May wrote:
>
>> Ok, I feel like an idiot. Operator error. Who knew there was a
>> display for BAT and P/S? I ju
It seems like it would be an easy thing to implement in the KPA500. Per
Band Standby.
73
jim ab3cv
On Mon, Apr 15, 2013 at 11:18 PM, Cady, Fred wrote:
> Hi Jim,
>
> What I’d like to be able to do is to disable the amp on some bands (e.g.
> 30 m), by asserting (low) DIGOUT1 (and setting K
Chris,
Since they both fit into the same space, only one can be present in the K2.
BUT - the K60XV has a low power KEYOUT signal available at pin 2 of J2.
As long as your amp keying requirements do not exceed the current and
voltage that a 2N7000 drain can handle, you may use that to key your
When setting up a wire I often switch my KX3 to FM mode, hit the TX button,
turn the VFO while looking at the meter to find the lowest SWR so I can
adjust the wire. This is very handy indeed. However sometimes the antenna
is resonant outside the permitted transmit frequencies. So I ask is there
any
GM Tom: I've found the Astron RS-35M to work just fine except that the
light in the ampmeter went out and I would have to replace the complete
meter to resolve the problem - so I just ignore that meter. Otherwise it
just keeps on working and has been on 14 to 16 hours per day since I got it
The K3 in question is a K3/100. Thanks,
Tom
On Apr 16, 2013, at 6:26 AM, "Tom Branton" wrote:
> Good morning everyone ,
>
> I think I have found a very nicely maintained and equipped K3 to purchase.
> Any purchase recommendations as to a well constructed and trouble free power
> supply?
>
Good morning everyone ,
I think I have found a very nicely maintained and equipped K3 to purchase. Any
purchase recommendations as to a well constructed and trouble free power supply?
Thanks
Tom
WD5DFE
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I agree with Don this could happen to others and cause needless calls to
support for a simple fix.
Myself among them 8>)
73,
Fred/N0AZZ
K3 Ser #'s 6730/5299--KX3 # 2573--K2/100--KAT100
P3/SVGA--KPA500--KAT500--W2
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecr
I bought a 60m add-on kit for my K2, but on reading the instructions, I
find it is incompatible with the N0SS amp keyer that I have fitted, in that
they both use the same socket. Has anyone found a way to have both
installed? Reply off the reflector OK, to acdmeag...@gmail.com. From Chris
VK2ACD K
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