Hi All,
A little while back I solicited ideas for filling up the unused holes on the
back panel of the K2.
I received various suggestions, but in the end I bought a selection of Heyco
Hole Plugs from Mouser, and just tried the different sizes until I found one
that fit.
XVTR in and out holes on
The voltage measured at P4 10 is 0 going to 1.2 when transmitting. The
voltage measured directly on U6 pin 2 is 0 going to about 6.2 volts when
transmitting. I resoldered R12 and double checked U6 pin 2.
I'm really puzzled now.
Thanks for the help!
Keith Hamilton
Don Wilhelm wrote:
Kieth,
Good Evening,
It has come upon us once again: Daylight Savings Time. Thanks to
Benjamin Franklin we get to change our clocks to give us more working
light. I am unsure why we still do this since we have electric lights but
it somehow persists. The factories constructed in the late 19th an
Kieth,
FB on your K2 symptoms - yes that was a good description.
OK, for the explaination: The K2 detects the power output and sends it to
the microprocessor on the VRFDET signal line. If the VRFDET line indicates
a power level less than the power requested by the power control knob, the
uP wil
Looks like the arts and crafts folks have dealt with this issue before -
http://www.ganoksin.com/orchid/archive/199912/threads.htm
I did not read much of the thread, but it looks like you have to immerse the
radio in Nitrous Oxide while soldering. They also suggest using a lot of hot
air inste
I am having a problem with my transmitter testing. When I try to
transmit my K2 says "Hi-Cur" and the power indication stays at 0.1.
However the wattmeter I have attached to the antenna indicates 10 watts
or more. I have the wattmeter hooked up to a dummy load. I tried
connecting it to my antenn
Thanks for the offers guys,I have found one...tks for the BW, John KF7OM
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I have been assigned a booth number for Dayton... booth 517, across the
aisle from SteppIR and next to microHam America. I hope to see you all
there.
I will be showing a number of kits. The LP-100 Digital Vector Wattmeter,
SteppIR Tuning Relay, LP-Remote board for remote base station control
I am looking for a small random wire coupler such as the MFJ 16010 or
similar in good condition. Thanks John KF7OM
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Rolf,
That looks like a 3rd harmonic (of the audio) to me - perhaps caused by
overdriving the soundcard.
73,
Don W3FPR
> -Original Message-
>
> I have been thinking my K2's filters. I worked EARTTY today. Look for
> the following pictures. K4GMF is transmitting around 1000Hz. There is a
KX1 Battery Pack.
i also have an external 4 cell LiIon battery pack for my KX1. You could
just use 3 cells to get 12.4V, which is more than the internal primary
Lithium's
normally provide. The radio has power diode inputs so it will draw current
from which ever battery has the higher voltage
On Sat, 1 Apr 2006 [EMAIL PROTECTED] wrote:
In a message dated 4/1/06 2:01:33 PM Eastern Standard Time,
[EMAIL PROTECTED] writes:
When using high altitude solder it is critical to use a left handed
soldering station otherwise the overall transceiver efficency is severely
degraded.
Urban leg
I was one of the guys who, six years ago, found himself suddenly afflicted
by a bad-sounding signal from my newly-built K2. It was maddening because
every time I buttoned up the rig it would hum. When I pulled the cover off
to investigate, the hum went away. After going through that several times,
The K2 has a great built in serial bus called the AUX BUS. All
communications between various modules take place over this bus except for
the I/O. I believe elsewhere it would be called the 1-Wire or Single Wire
Bus and the capabilities of the 1-Wire Bus are limitless. Someone that
knows what is
Hi
Recently I got a few small parts off Elecraft, and for the want of
nothing better to do, I also got them to send me the "K2 VCO Shielding
kit", which I installed yesterday.
It is a very easy kit to install and it took less than an hour to do. I was
quite impressed when I did the upper and
On Sat, 01 Apr 2006 16:00:06 -0500, Gil Stacy wrote:
>Now that we are switching to daylight savings time tonight, my immediate
>concern is what this extra hour of daylight will do to 40 meter propagation
>and my lawn. It's already getting hot around here.
That's because you're using hotmail,
On Thu, 30 Mar 2006 13:56:46 -0500, Ian Stirling wrote:
> Even better than a designed-in K2 USB port,
>how about a Bluetooth interface for wireless
>connecting to a computer?
This assumes that everyone "speaks" Bluetooth. I don't.
--
73 de K2ASP - Phil Kane
K2/100 5402 - coming to a
On Sat, 1 Apr 2006 10:47:26 -0800, Ron D'Eau Claire wrote:
>If those folks can locate that high-altitude solder, I'm sure the same
>source will have an ample supply of RF grease to help the radio waves slip
>off of your antenna.
While we're there, see if they have any folding seats for the
s
On Thu, 30 Mar 2006 12:22:31 -0600, Rich Lentz wrote:
>We went through this a few years ago, but it sure would be nice for
>Elecraft to make a USB interface and scrap the serial adapter
>altogether. I think now is the time as the last two computers I bought
>have NO SERIAL PORT and no way of addin
K2 s/n 2596 has been sold. Thank you everyone.
John [K7SVV]
On 4/1/06, John [K7SVV] <[EMAIL PROTECTED]> wrote:
>
> FORSALE
>
> Elecraft K2 s/n 2596 with:
>SSB (KSB2)
>Audio Filter/Clock (KAF2)
>Noise Blanker (KNB2)
>RS-232 Interface (KIO2)
>Antenna Tuner (KAT2)
>Inter
OK you guys, I have gone out to the garage and put on my "hip waders"
now you guys can continue, as now I won't get any on me !
Well, unless it gets so deep, it goes over the top of the waders !!!
73... Ken.K7ZUM
> I had the same problem, until I discovered that underwater solder works
> j
Ron,
Now that we are switching to daylight savings time tonight, my immediate
concern is what this extra hour of daylight will do to 40 meter propagation
and my lawn. It's already getting hot around here. Do you think RF
grease will help combat the 40 meter problem?
73, Gil NN4CW
___
Hello all!
To all who asked about my Red Hot Vertical - here's where I'm at.
I'm still in the design stage, but I'm VERY excited at the results so
far. I just came in from testing the proto type and it looks great!
The antenna is a miniature VBWFPA No Pole, but with plug-in loading
coils.
The ante
I had the same problem, until I discovered that underwater solder works
just as well. It's all about the pressure differences. I use the fresh
water variety, since I do most of my mountain topping on inland
mountains. I get it from Cousteau Electronics Supply, they are on the
web. You do h
Hello!
I have been thinking my K2's filters. I worked EARTTY today. Look for
the following pictures. K4GMF is transmitting around 1000Hz. There is an
unnecessary extra audio peak around 2.5 to 2.8kHz
http://ugly.blerp.org/~oh6kxl/350Hzfilter.jpg
http://ugly.blerp.org/~oh6kxl/350Hzfilter2.jpg
In a message dated 4/1/06 2:01:33 PM Eastern Standard Time,
[EMAIL PROTECTED] writes:
> When using high altitude solder it is critical to use a left handed
> soldering station otherwise the overall transceiver efficency is severely
> degraded.
Urban legend.
The left handed soldering station i
Only in the northern hemisphere, as was discovered by Gaspard
Coriolis watching the mojo swirling as it ran out.
Bob, N7XY
On Apr 1, 2006, at 11:01 AM, [EMAIL PROTECTED] wrote:
When using high altitude solder it is critical to use a left handed
soldering station otherwise the overall transce
- Original Message -
From: <[EMAIL PROTECTED]>
When using high altitude solder it is critical to use a left handed
soldering station otherwise the overall transceiver efficency is severely
degraded. Happy building.
Only in the Northern hemisphere. Here in Switzerland we get the effe
>>-Original Message-
>>From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
>> On Behalf Of Lyle Johnson
>>
>>As for how long you can hold your breath in a vacuum, I refer you to Arthur
>>Dent.
>>
>>73,
>>
>>Lyle KK7P
Hmmm, very good point Lyle.
42,
-rick, K7LOG
___
For 80 m, we recommend a resonant antenna if your goal is to maximize
results using QRP on this band. Other ideas:
1. A loading coil can be used with a shorter antenna, but be sure to
adjust the coil to resonance, first, with the KX1's internal ATU
bypassed. (During initial experiments to dete
When using high altitude solder it is critical to use a left handed
soldering station otherwise the overall transceiver efficency is severely
degraded. Happy building.
73 de N0EHQ
> I plan to do a lot of mountaintopping in the next few years and will
> be assembling a K1 for this specific use.
Does anybody know of a vendor that still sells it? Are
there any special precautions or procedures for using this solder?
Any quality solder will work. You just have to assemble the K-1 in a vacuum
chamber to out-gas the connections. Remember to hold your breath to avoid
contamination.
Actual
If those folks can locate that high-altitude solder, I'm sure the same
source will have an ample supply of RF grease to help the radio waves slip
off of your antenna.
It's especially useful for very short antennas where the electromagnetic
friction gets very, very high in those loading coils.
I
When Elecraft came out with the 30/80 board to increase operating bands to
80,40,30 &20, I bought the mod and the AT kit that goes with the KX1. They
haven't arrived yet so I still have time to think about antennas for
portable-backpacking. The usual 29' wire with the 16' counterpoise would wo
I was impressed with the added performance from using HA solder on my K1 SN
1976 at altitude, but I thought the advantages were quickly lost from having
to store the K1 in an altitude chamber when I got home. I'm not seeing the
full 22% increase that some are seeing since the mountains around here
At 12:57 PM 4/1/2006, Lynn Burlingame wrote...
>I plan to do a lot of mountaintopping in the next few years and will
>be assembling a K1 for this specific use. I need to locate a good
>source for MILSPEC high altitude solder that meets Elecraft's
>specifications and will not void the warranty. Th
Lynn,
The best is liquid solder - one used to find it in hardware stores, but I
havn't looked recently. Those loose electrons are the main thing that
improves the efficiency. Now if someone could just come up with a way to
keep it from hardening so the electrons stay loose longer .
73,
Don W3FP
> Does anybody know of a vendor that still sells it? Are
there any special precautions or procedures for using this solder?
Any quality solder will work. You just have to assemble the K-1 in a vacuum
chamber to out-gas the connections. Remember to hold your breath to avoid
contamination.
Paul N8
FORSALE
Elecraft K2 s/n 2596 with:
SSB (KSB2)
Audio Filter/Clock (KAF2)
Noise Blanker (KNB2)
RS-232 Interface (KIO2)
Antenna Tuner (KAT2)
Internal Battery (KBT2)
160 Meters (K160RX)
Rework Eliminators (not installed)
All documentation and manuals
Everything works great.
Howdy all
Manual calls for KPA 100 transistors Q3 andQ4 to be MJE 182, in a TO-225
package. I received none. But I did receive two pieces marked JE1112, (also
marked 443), in a TO-225 configuration.
Anyone know if the JE1112 is equivalent to MJE 182 Hope so, because they
are soldere
I plan to do a lot of mountaintopping in the next few years and will
be assembling a K1 for this specific use. I need to locate a good
source for MILSPEC high altitude solder that meets Elecraft's
specifications and will not void the warranty. The reported 22%
increase in equipment efficiency wil
please cancel my want for the parts and/or the antenne.I have found
one..Thanks, John KF7OM
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ht
I just completed my KAT100 and have remoted the KPA100.Looks fantastic, but
it won't match.
Here are the details, when I tune it always stops with a high SWR. I did
the measurements at 14.030 MHz where it achieved a 4.5:1 match.
L=00.2
C=0.30
Net=2
T=197
E-243
Connecti
Pat,
SCK will not be present at all times, if you see some pulses when the VFO is
moved, that is sufficient information that it is working. The data to the
PLL DAC is only required to be updated when the VFO is changed, not
continuously. Those clock pulses are hard to see on a 'scope - they are
Dave,
That's a great receiver! I have a R-4A, T-4X, R-4c,T-4Xc, TR4c, RV-4c.
Anyway as you can see I like 'em. No it's not a contest receiver, but
listen to AM broadcast and even SSB and it a pleasure to rag chew with
it.
No I didn't try to use it with my K2. Came close while waiting for the
100
Keith:
With in the past week I also did the re-alighment in
my K1.
I also found the following:
K1 errata F-2.pdf (in part says)
ยง A small jumper block has been added for selecting
the source voltage for the RF detector (RF
board or KAT1 antenna tuner). This will make it easier
to install or remov
I posted a note last night and have also sent one to service @elecraft
but have not had a response from either. I am missing the clock signal
SCK in the PLL circuitry. It is also missing on the Control Board. The
signal sit at level high with no pulses. I am assuming that this signal
should be
Don Wilhelm schrieb:
Rolf,
The answer may be an easy one - Is the power supply for the KAT100 switched
on before turning the K2 power on? If not, it should be.
You apparently have the KAT100-2 if it contains the connector for the flat
ribbon cable connector, that is for connecting the KPA100 w
In a message dated 4/1/06 7:52:54 AM Eastern Standard Time,
[EMAIL PROTECTED] writes:
> Recently I bought an excellent Drake R4A and am struggling to find a
> companion transmitter for it.
Drake T-4X If you're gong to go the hollowstate/BA route, why not all the
way?
73 de Jim, N2EY
r
Dave,
For reasons other than twinges of nostalgia for boat-anchor gear, I can't
understand why anyone would want to actually use such a combination - the K2
has a much better receiver and works QSK nicely as a stand-alone
transceiver. I would think the Drake would be quite useful as a station
'de
Good One Dave - Happy first of April. If you want to also replace the
transmitter section I'll supply a drawing of a great rig using a 6L6.
73 Bob W7AVK
Dave wrote:
Recently I bought an excellent Drake R4A and am struggling to find a
companion transmitter for it. One option could be to use
On Sat, 1 Apr 2006, Dave wrote:
Recently I bought an excellent Drake R4A and am struggling to find a
companion transmitter for it. One option could be to use my K2 as a stand
alone transmitter with an appropriate "external receiver" output modification
to the K2 and a "mute" relay fed from the
Rolf,
The answer may be an easy one - Is the power supply for the KAT100 switched
on before turning the K2 power on? If not, it should be.
You apparently have the KAT100-2 if it contains the connector for the flat
ribbon cable connector, that is for connecting the KPA100 when mounting the
KPA100
Recently I bought an excellent Drake R4A and am struggling to find a
companion transmitter for it. One option could be to use my K2 as a
stand alone transmitter with an appropriate "external receiver" output
modification to the K2 and a "mute" relay fed from the normal linear
amplifier relay.
Good morning Don:
I forgot to tell you I have a RIGRUNNER 4012 with my small power supply for
the K2. Well, it had blown a fuse and I did not realise it. When I checked
everything this morning, after your email, the K2 is ON with no problems.
Thank you for the fuses!
Many many thanks Don
73
Ma
Hi
From time to time I read postings about the pain of removing the
heatsink panel from the finals in the K2, but really it isn't as bad as it
seems if approached from the right angle.
What I have done in the past, is put the K2 on it's side and remove the
panel screws,( including the 2 on
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