G'day,
I've been trying to download the construction manual for the EA3BLQ K2
digital interface. The site:
http://www.qsl.net/ea3blq/download_ang.htm
Is pathetically slow, <1000 bytes/sec and for a 2.4Mbyte download that is
not an option. Anyone know another source?
Regards,
Mike VP8NO
At one point, I really had big plans
for this, but it turns out that I am
not a builder. 8^(
I have K2 serial 2552, the basic 80-10
CW only radio. In addition, I have the
following kits:
KSB2 SSB adapter with prewound coils
K160RX 160/receive antenna adapter,
also with prewound coils
K2KS
I was spinning across 20m SSB segment and heard this
"outstanding" signal with the best sounding audio I've
ever heard. I called this station(I think it was an
XE1) and asked him about his great sounding audio. He
replied by saying he was using a W2IHY 8-band
Equalizer. Then, I started wondering
Hi
It is normal to read a very low DC resistance on the BNC center pin to ground.
I would look for bad connections on the toroids in the transmitter and make
sure T4 is wound right and connected right. Also check that Q2 is in right and
all of the 1n4007 diodes are in right
Don Brown
-
Hi,
I have steadily and carefully built my K2 and it has passed all the tests so
far with flying colours, including 40m RX. Now I have just completed the
transmitter stages, and attempted the first tx test... Ah problems. Well
things have gone well so far!! Even a bottle of Hoegaarden did not help
Hi,
I recently sold my Yaesu FT-897 because my K2 replace it for sure... :-)
I was using this rig for outdoor activity. I only sold the rig and the
tuner, but kept the brand new batteries and charger for another
good usage...
I now use my "old" new FT-897 batteries that give 13.2V and 45
You may have better results with a dipole antenna, or at least you will be
able to tell if it is the band.
A very low antenna as you describe, 12 ft., radiates mostly straight up and
is only good within your state except for exceptional propagation
conditions.
Try something from a tree to the pea
Hello,
Just worked Ed, WA3WSJ, on 7040.1 MHz @ 20:47 UTC.
He is at Eagles Nest Shelter on the AT near Hamburg, PA in Berks County.
He will be here for a while until he goes to 20 meters.
72 and Thanks,
Ron Polityka
WB3AAL
www.wb3aal.com
www.n3epa.org/
73's everyone,
I don't know if I have a problem or not. I have made several CW
contacts with my newly built K2 during the past week. Most of them, the
incoming
signal goes in and out to a certain extent. For the most part, I can read most
of the message but some it gets lost in the mud
That's the answer! Screws were black, face is red! Thanks. Brian
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Don Wilhelm
Sent: Friday, July 09, 2004 3:25 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] KPA-100 Q1,Q2,Q3,Q4 screws to heat sim
Brian,
Something is wrong - 1/4 inch screws should be plenty long - dumb question,
are you really using the 1/4 inch screws? - they are NOT the black ones.
The only thing the screw should pass through is the lockwasher and the
transistor (yes the thermal pad too) before it hits the heatsink. Thos
Hi Brian:
You might check the 3/16" diam x 3/16"long spacers at the 5 points
"H"(pg 35) to insure they are installed *without* lockwashers. Good Luck!
73,
Ken Wagner K3IU
~~~
Brian Wruble wrote:
Hi all: I am just nearing completion of the 100W upgrade to my K2.
Hisashi,
It sounds like the K2 may be too close to the power supply. Try putting
the PS 1-2 feet from the K2 and see if that takes care of the problem.
Tim Raymer
At 13:28 07/09/2004, Hisashi T Fujinaka wrote:
Last night I tried to get on the air with my new K2. The receiver
sounded great,
Hi all: I am just nearing completion of the 100W upgrade to my K2. I am
unable to get the 1/4" 4-40 pan head screws to reach far enough through the
board to "catch" the threads in the heat sink UNLESS I leave off the lock
washers. Without the lockwashers, everything seems to fit perfectly.
I'
I had the same problem as you. However, the K2 was GREAT on the air. I
finally traced the problem to the fact that both were using the same power
supply (cured most of it) and to much transmit power - used a dummy load for
both the K2 and the 706 with the K2 at about 1 watt. As my XYL is a ham I
Last night I tried to get on the air with my new K2. The receiver
sounded great, and I heard lots of activity on 40M CW and 20M SSB.
However, when I tried to listen to my transmitter with my IC706, it
sounded raspy and nasty. Looking at the signal with my 'scope told me
very little (nothing visual
i read all the posts about how well capacity hats work so i decided to
build one for my 8 foot whip.
i used a SO-239 (UHF Female) back shell (UG-106/U) to attach it.
i took a 9 inch pie pan and drilled a hole in the center and used the UG-106
to make the vertical to horizontal attachment.
i put th
I worked one station on 60 last night after the posting. I'm game to
try again tonight. Same time (0130) same channel (5346.5).
Wayne
On Jul 9, 2004, at 8:21 AM, Dave G. wrote:
Wayne,
If you meant Thursday night, the digest arrived after the event... :-\
If you mean tonight Friday 07-09-0
I think I have found my problem with the reflectorsomehow my own address
was being blocked by a spam filter. Lets see if this works. Sorry for the
bandwidth
Lee - K0WA
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You must be a s
Hi
The K60XV option has the external amplifier keying circuit built in although it
uses a 2N7000 as the output transistor so it will not handle a large current. I
would guess the 2N7000 could be replaced with a IRF830 or IRL620 like in the
KPA100 if you needed up to one amp and 200 volts. The k
Wayne,
If you meant Thursday night, the digest arrived after the event... :-\
If you mean tonight Friday 07-09-04, then I'll be happy to try :-0
Quote:
5346.5 kHz (if QRM: 5366.5), 0130 Z (6:30 PM PST), tonight. I'd propose
something
for next week, but chances are I'll be at the hospital wit
I am having some issues with the reflector. I am not seeing the message I
send, but I see replies to the message. I have checked my set up and it seems
correct. Can anyone give me some suggestions?
Lee
k0WA
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~~
N2CQ QRP CONTEST CALENDAR
July 2004
~~
Summer FOX Hunt - CW:
Every Friday through August 20 (UTC) 0100z to 0300z
(9 PM - 11 PM EDT Thurs evening US/Canada)
Info: http:
Hi David:
They're for ANYONE, but primarily for Elecraft Owners, QRP or OTHERWISE! At
least the US-based Elecraft CW Nets are, and I'd suspect that the Eurasian
ECN is as well.
Use whatever you have... QRP or otherwise... just QNI (check in)...!
73,
Tom N0SS
At 01:47 AM 7/9/04, you wrote
Hi Mike:
I happened to find the K2 amplifier keying circuit
partial mod kit on Elecraft's site. The write up
mentions, at the bottom, that you might be putting
together a small PCB for this circuit. Do you have
any of the PCB's available for sale? If so, can you
email me the details?
I'm r
Jim,
>From your description, the inverter you described is almost correct BUT it
won't work because there is no voltage available to it.
The output from the KPA100 is a HEXFET open 'collector' - which means it
makes a path to ground when active (transmit state) and is open during
receive. The Am
Hi gang,
I have my radio configured for the heil mh2 mic and it works fine...I
decided to wire up a 705 to the k2 to see how it sounded, I wired it up
like this:
1-audio-white
2 -ptt- black
7-ground -shield
I am using the 9v battery in the mic and all seems to work fine...except
whe
Bob,
I agree... In my case, the voltage at 3.5 MHz was the ONLY voltage that
was anywhere near a limit.
Thanks, Michael N9BDF
K2 SN #4137
_
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Sent: Friday, July 09, 2004 8:10 AM
To: Linden, Mike (BRC-Hes); elecraft@ma
The VCO voltage reading is within the tolerances quoted by Elecraft so is
normal.
However this is not the whole story as you have to look at the results for
all bands rather than just this one and ensure that they also fall within the
stated limits. On my K2 on 40m with 80m set as advised i
To supplement Lee's email, I would say that ALC is a way to protect the PA
from overdrive.
For example, if I set proper ALC level at my ICPW-1 to get only 500 watts
(the full output of PW-1 is 1 kw), even when I turn the RF power control on
my IC756pro2 to full scale, the ALC feedback voltage from
After setting L30 for 6v at R30 at 4 MHz, I am reading 1.53V at 3.5 MHz.
While this is above the 1.5V limit, is it a little bit too close for comfort
or is it OK? The voltages for the other band edges are all well within the
specified range.
Also, when adjusting the filter BFO values I found t
Mike,
You already have all the info you need, but I would like to say you will need
no ALC at all. If you keep the rig linear and not over drive the amp...there
is no need for ALC. This feature is kind of a left over from when tubes were
tubes and men were men (sorry Ladies, trying to make a
It would be possible to do this switching with the K2 Amplifier Keying
Circuit in Elecraft application notes and adding a PNP transistor and a
resistor
to provide the correct switching. This could be installed external to the K2
possibly at the TenTec Hercules amplifier keying input.
We us
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