Given that the market for K4 radios will come primarily from K3 owners
initially, the last thing Elecraft will do is to start a different
group, and I am glad of that. This COVID crap can not have been easy
for them, couple that with fires, etc., and they need to sell radios!
73, and thanks,
It did... That was a ploy to keep funding is all.
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 8/31/20 6:21 PM, Tox wrote:
There was talk of shutting it down as cost savings, but I th
My WWVB clock is dead on, and has been for years... No issues here at all.
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 8/31/20 5:44 PM, Bill Frantz wrote:
I had a friend ask me if som
That is a really good idea...
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 8/19/20 3:42 PM, Geert Jan de Groot wrote:
Hi,
As many folks are shedding a K3, it is currently possible to
I have to know why?
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 8/1/20 10:49 AM, Brian Comer wrote:
I have reason to connect two KPA 500s in series. What is the max power that
can be
God knows how much they beat the radio in shipping!
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 7/19/20 10:30 AM, w5...@comcast.net wrote:
First let me thank each and every one of you
Tuners... Tuners... We don't need no stinking tuners... Real men use
antennas that don't need stinking tuners...
Sorry I had too...
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 7/1
You should probably buy an Icom!
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 7/16/20 10:55 AM, Tox wrote:
Given lead times, if the Dec/Jan ship date was not BS, then parts would
alrea
Lets see, solved pre COVID, then COVID arrives, and messes up all
existing scheduling... No surprise here...
I doubt Elecraft has initiated a "string-along" process... All good
things take time... In the middle of all this COVID crap, I am
surprised Elecraft can do repair and return...
73
Put the K3 in CW mode, then press and hold the CMP/PWR/MON knob, the
display will change to MON, that is your sidetone adjustment.
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 7/16/20
t;
PL-259 SO-239 Coaxial Cap Protective Dust Cover - ARS-G510
www.americanradiosupply.com
Chuck Hawley
c-haw...@illinois.edu
Amateur Radio, KE9UW
aka Jack, BMW Motorcycles
From: elecraft-boun...@mailman.qth.net on behalf
of Dave Cole
Sent: Wednesday, July 1
American Radio Supply sells metal covers that thread onto SO-239, and
have a soft rubber insert. I have been using them on outdoor connectors
for years now, and they work well...
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Direc
Add upward pointing non-metallic pins along the top half of the loop.
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 6/7/20 7:15 AM, Andy Durbin wrote:
I use a home brew mag loop on 30 m
ferent step sizes on different bands, changes in the beat note (that
I observed) do occur.
The K3(S) is a great transceiver, it isn't a great frequency meter.
Wes N7WS
On 6/6/2020 2:42 PM, Dave Cole wrote:
Hi,
As the other station siad, you will have Doppler issues. Also the K3
tunes in st
Hi,
As the other station siad, you will have Doppler issues. Also the K3
tunes in steps, which make sustained .1 hz accuracy a dream, not
attainable. It looks to tune in .25 Hz., or larger steps. I am going
from memory here, so it may be something different.
I wanted to use my K3 to watch
Anyone know what those green wires are on each RR cross tie?
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 6/5/20 12:28 PM, Edward T. Tanton wrote:
WOW!!! That was so-o-o neat!!!
-
Huh? I don't sell them...
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 6/5/20 10:53 AM, Jim Brown wrote:
On 6/5/2020 8:17 AM, Phil Kane wrote:
For our commercial and public safety
co
wind? Neither works.
73
Bob, K4TAX
On 6/4/2020 9:59 AM, Dave Cole wrote:
I have that same problem, maybe 1 in 10 or 2,0 I slice the cable or my
hand... ;)
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Tech
I have that same problem, maybe 1 in 10 or 2,0 I slice the cable or my
hand... ;)
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 6/4/20 7:44 AM, Peter Dougherty wrote:
This is my defaul
Time to put some of my current heatshrink on an old connector and throw
it in the freezer, thanks for the tip!!!
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 6/4/20 12:35 AM, Edward R
rdware, but
I'm guessing I should probably wrap the feedpoint up in
self-annealing tape
and Scotch 88 just to be safe.
- pjd
-Original Message-
From: elecraft-boun...@mailman.qth.net
On
Behalf Of Dave Cole
Sent: Wednesday, June 3, 2020 7:27 AM
To: elecraft@mailman.qth.net
Su
Use Scotch 130, better than rescue tape.
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 6/3/20 11:50 AM, Phil Kane wrote:
On 6/3/2020 8:35 AM, Peter Dougherty wrote:
No, and I wasn't s
UPS
delayed the delivery until 6/2 due to a local backlog.
73 de Bruce, N7TY
Yuma, AZ
www.qsl.net/n7ty
-Original Message-
From: elecraft-boun...@mailman.qth.net On
Behalf Of Dave Cole
Sent: June 3, 2020 04:30
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Elecraft Service
Hi bruce
Hi bruce,
It is interesting you mention this, I was just wondering how long the
backlog was for repairs due to COVID issues... What was your tuner time
from sending it in, to getting it back?
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
A
Hi,
Is the open end of that feedline where it connects to the antenna
weatherproofed?
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 6/2/20 8:15 PM, Peter Dougherty wrote:
HI all,
A
Is it possible that Common mode is getting into the amp, and forcing a
fault?
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 6/1/20 2:40 PM, Fred Jensen wrote:
Nearly same experience Bob
Peter,
If my antenna system had 2.5 to 3 to 1 SWR, I would not run 1.5 KW. I'd
be looking at my antenna...
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 5/31/20 9:07 PM, Peter Doughe
Good, Fast, Cheap... Pick two.
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 5/27/20 4:39 PM, Steve via Elecraft wrote:
You must remember that the parts that go in much of this equipmen
Of late, the fans in these systems are speed controlled by PWM. Nice
high power square waves...
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 5/27/20 10:08 AM, Phil Hystad wrote:
I di
abundant wi-fi networks and HDTV antennas being popular for cord cutters.
Hank
K4HYJ
- Original Message -
From: Dave Cole (d...@nk7z.net)
Date: 05/27/20 12:40
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Quiet Ductless HVAC System
Maybe they are more hungry out here in Oregon... They
4 AM, Gary wrote:
How did you find one that would agree to that? The 6 I've talked with
all said pass as soon as I brought the subject up
73,
Gary kk0sd
-Original Message-
From: elecraft-boun...@mailman.qth.net
On Behalf Of Dave Cole
Sent: Wednesday, May 27, 2020 8:45 A
wrote:
How did you find one that would agree to that? The 6 I've talked with all said
pass as soon as I brought the subject up
73,
Gary kk0sd
-Original Message-
From: elecraft-boun...@mailman.qth.net On
Behalf Of Dave Cole
Sent: Wednesday, May 27, 2020 8:45 AM
To: ele
Hi Albert,
Here are a few suggestions... When I added my furnace, I made it part
of the purchase contract that there was to be no new RFI. This makes
the vendor very careful. Tell them it is a showstopper, and they will
be responsible for RFI removal if RFI comes with the new purchase. Get
On 5/23/20 3:15 PM, Tim McDonough N9PUZ wrote:
Very nice Dave! I especially like the cable raceway to keep the power
leads and coax neat.
Tim N9PUZ
On 5/22/2020 7:10 PM, Dave Cole wrote:
To the new home for my K3 project...
https://www.nk7z.net/rf-patch-panel/
See last 4 at the bottom
emember which mix of Fair-Rite was the right one.
Nick
On Sat, 23 May 2020 at 10:58, Dave Cole <mailto:d...@nk7z.net>> wrote:
I would put the ferrite material as close to the speaker as possible,
and as close as possible to the amp...
It is important you also protect
er speakers in
the room, I can't be sure about the LFE coaxial cable, so that wouldn't
hurt.
Nick
On Sat, 23 May 2020 at 10:08, Dave Cole wrote:
Grab some FT-240/31 ferrites from Fair-Rite, (these are the large
rings), and put seven or eight turns of speaker cable through each,
Grab some FT-240/31 ferrites from Fair-Rite, (these are the large
rings), and put seven or eight turns of speaker cable through each,
tight wound. Add one at the speaker, and one at the amp.
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL
I believe one of the tests Elecraft performs is a 10 minute keydown at
100 Watts. I hope someone from Elecraft comes in and verifies that...
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
To the new home for my K3 project...
https://www.nk7z.net/rf-patch-panel/
See last 4 at the bottom.
--
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
What a clever way to install a static drain resistor! THANK YOU!
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 5/18/20 3:46 PM, Fred Jensen wrote:
I believe Elecraft equipment has stati
dB in both the main
and sub-receivers.
73,
Mark, WB9CIF
-Original Message-
From: elecraft-boun...@mailman.qth.net On
Behalf Of Dave Cole
Sent: Monday, May 18, 2020 04:08
To: Nr4c ; Bill Frantz
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] [K3/K3s] RF Gain Control
Thanks!
73
, 10 and 6 meters.
Sent from my iPhone
...nr4c. bill
On May 17, 2020, at 11:44 PM, Bill Frantz wrote:
I think on the K3 you only have one level of ATT, unless you have upgraded the
right piece.
73 Bill AE6JV
On 5/17/20 at 10:16 PM, d...@nk7z.net (Dave Cole) wrote:
I looked at my K3, (not S
I looked at my K3, (not S), and I have a single step of ATT 10 DB,
should I have more, or is it just the K3S that has multi steps.
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 5/17/20
Hi Andy,
I would be most interested in seeing that once finished... Thanks for
sharing...
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 5/15/20 6:02 PM, Andy Durbin wrote:
"Can you e
Andy,
Can you expand on this setup please? I would like to emulate it.
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 5/15/20 4:43 PM, Andy Durbin wrote:
"That is a very good argument
Sent Dave my home phone...
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 5/15/20 3:46 PM, Dave Weiss wrote:
Hello all:
I have a Genovation CP48, K3, P3 and I have done the Genovation m
Hello,
A short update on the new home for my K3. I have terminated all 80 plus
BNC connectors, and the patch panel is ready to mount in the hutch...
See the last 4 photos for the current state of the desk hutch. Located at:
https://www.nk7z.net/rf-patch-panel/
That address shows progress f
Thank you for a very thorough, and cogent, explanation of that.
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 5/7/20 7:12 AM, Ignacy wrote:
NK7Z wrote
Initial testing here indicates n
Remember... Just because you think they are out to get you, does not
mean they are not out to get you...
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 5/5/20 2:33 PM, Eric Norris wrote
1850, or 1950? Sorry Jim, I had too... :)
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 5/4/20 11:24 AM, Jim Brown wrote:
Not really. ICAS and CCS have been used by power tube mfrs lo
, page 41 Specifications:
Duty Cycle at 500 Watts10 minutes key down / 5 minutes standby
Sometimes it is very worth while to read the manual. It gives me
something to do when being stuck at home for so long gets me down.
73!
Jack, W6FB
On May 4, 2020, at 6:39 AM, Dave Cole <mailto:d...@nk7z.
y cycle has no time limit.
-de John NI0K
Dave Cole wrote on 5/4/2020 8:39 AM:
Hi Rick,
This brings up a point I have been unsure about for years... Duty
Cycle... What constitutes 100%? Over how long a time frame?
If I run JT65, (one minute on one minute off), and I use a timeframe
of say
00%
duty cycle ICAS'. ICAS=Intermittent Continuous Amateur Service'.
Gobbledegook!
100% duty cycle is what Alpha used to say brick on the key forever.
FT8, JT65 are 50% duty cycle modes. SSB is about 33% during transmit, CW
is 50% during transmit. Duty cycle has no time limit.
far more cautious). It's nice to know there is a certain amount of
'overhead'.
Rick NK7I
On 5/3/2020 8:23 PM, Dave Cole wrote:
Hi Rick,
That is how mine behaves as well, almost exactly like that... However,
I will be running SSTV, and that is hard on the amp... I need to do a
Hi Rick,
That is how mine behaves as well, almost exactly like that... However,
I will be running SSTV, and that is hard on the amp... I need to do a
bit more testing prior to that.
As someone else said upthread, half power is really tough on the amp...
73, and thanks,
Dave (NK7Z)
https://w
wrote:
I am glad to see these numbers and comments, because I have wondered
about the temperatures. If running on CW in contests, it shows upper
50s and reaches 60C.
Thanks gang!
On Sun, May 3, 2020 at 17:42 Dave Cole <mailto:d...@nk7z.net>> wrote:
Pure paranoia! :)
I tend
protect itself above 90C, but it will work quite well at 70C.
Why do you stop at 70C?
73!
Jack, W6FB
On May 3, 2020, at 1:26 PM, Dave Cole wrote:
Hello,
I just got the new MMSSTV software, and will be running a bit of SSTV. SSTV is
100% duty cycle.
Initial testing here indicates no power
Hello,
I just got the new MMSSTV software, and will be running a bit of SSTV.
SSTV is 100% duty cycle.
Initial testing here indicates no power level is safe... At 150 watts
the KPA500 reaches 70C pretty fast, in under two minutes, and 70C is my
upper limit for testing... At 500 watts it re
Ian,
Could you also send me a copy, I have an older amp as well.
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 5/3/20 1:14 PM, iain macdonnell - N6ML wrote:
On my early model, the inter
luckily most folks now days can use both, but prefer one over the other.
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 5/2/20 8:55 AM, Lynn W. Taylor, WB6UUT wrote:
If you ask people on
I hold all but really nasty security updates until the end of each
month. Gives M$ a chance to get it right the second or third time...
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 5/
I must agree 100%, having the list move to a .io interface would destroy
the navigability.
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 5/1/20 2:31 PM, Lynn W. Taylor, WB6UUT wrote:
B
I wish you all had included a filter slot... :)
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 4/30/20 12:06 PM, Wayne Burdick wrote:
For each product, we experimented with air flow dir
=CUT=
On 4/29/20 7:04 AM, kk4kfg wrote:
Respectfully I offer the following.
So yet again Microsoft and Windows 10 does something absolutely stupid
and against every known specification for a mail client and the offered
"sol
I run my KPA500 with no ALC, and have from day 1. Somewhere I have seen
a recommendation, (I think by Elecraft), to not run ALC with the KPA500.
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resourc
Voltage drop the easy way:
1. Press the DISP button on the K3.
2. Adjust VFO B for voltage.
3. Go into transmit at full power.
4. Write down the voltage you see.
5. Meter the power supply.
6. Go into full power transmit.
7. Write down the Power Supply voltage.
Subtract the number you got
What a fascinating story! Thank you for sharing.
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 4/24/20 4:35 PM, donov...@starpower.net wrote:
In 1969 -- right out of college...
__
:
Each of these frequency jumps causes phase discontinuity that is likely
to cause bit errors in during PSK modulation and demodulation.
How often do they occur?
73
Frank
W3LPL
*From: *"Dave Cole"
*To:
ormally between
freg corrections ... . Now if you want to know why Elecraft chose
periodic freq correction over true phase-locking, the answer is low LO
phase noise. Much harder to get low phase noise in a PLL than in a TCXO."
73,
Frank K6FOD
On 4/24/20 12:37 PM, Dave Cole wrote:
Hi,
Th
Hi,
That was me... I used to use my Icom 756 Pro, to watch the Doppler on
changes in the ionosphere, and on Meteors. The K3 uses steps to correct
frequency, while the Icom did not. Analog vs. Digital corrections.
Accuracy is not an issue, it is the steps... They destroy the
continuity of
I put on a cheap Brothers label, and then heat shrink clear 3:1 on it.
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 4/23/20 4:51 PM, Jim Cassidy wrote:
I found several years ago that B
Never mind, you are correct... He was talking about the feeds.
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 4/23/20 12:43 PM, Dave Cole wrote:
He is talking about jumpers on a patch
He is talking about jumpers on a patch panel, not the actual feeds from
the antenna.
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 4/23/20 12:37 PM, Bob McGraw K4TAX wrote:
I just label
That explains it perfectly Jim, thanks!!!
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 4/23/20 10:47 AM, Jim Brown wrote:
On 4/23/2020 7:23 AM, Dave Cole wrote:
In looking at your
That's another good idea, and thanks!!! I will do that!
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 4/23/20 8:44 AM, Gary Peterson wrote:
I almost forgot to mention that when making
That's a really good idea, wish I had thought of that... I also worked
in Broadcast Engineering for a few decades.
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 4/23/20 8:38 AM, Gary P
Jim,
In looking at your slides, slide 105, (thanks for sharing the
presentation BTW), it strikes me that the coax cable braid running
between radio/amp/tuner/antenna panel, would act as a bonding
connection, so I would not need to add a large wire between those items.
Is this correct? If no
station. BTW, I have found that 1/2" braid can be rolled up and
crimped in 45A Power Pole connectors.
73...
Randy, W8FN
On 4/23/2020 8:53 AM, Dave Cole wrote:
Hi Randy,
I rebuilt my shack six years ago, and documented a bit of that. One
part was connecting grounds to the back o
Hi Randy,
I rebuilt my shack six years ago, and documented a bit of that. One
part was connecting grounds to the back of the rigs. See:
https://www.nk7z.net/rebuilding-the-shack/
Look at a few of the photos. One shows a large copper ring terminal,
which will fit a K3, etc., and how it was
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 4/22/20 8:14 PM, Jim Brown wrote:
On 4/22/2020 1:51 PM, Dave Cole wrote:
I am trying to reduce the potential for ground loops, so I will not be
using the patch panel as a ground connection poin
this has been asked, but what are you doing for equipment bonding?
73!
Jack, W6FB
On Apr 22, 2020, at 10:22 AM, Dave Cole wrote:
Please thank him for that tip!!! I will be using that from now on!!!
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical
t now, but ... . Good thing the K4 isn't shipping yet!
On 4/21/2020 11:48 PM, Dave Cole wrote:
Hi Clay,
I used the folks called Front Panel Express at:
https://www.frontpanelexpress.com/
Took a few hours to learn the free software they provide, but overall
it was easy. Not cheap, but ve
Resources
On 4/22/20 8:58 AM, Dave Cole wrote:
Most of the zip ties inside the Panduit were clipped out last night... I
used them only to hold/form cables together as I run them in the Panduit.
I will leave the wire ties at the entry and exit points to the Panduit
to assist in keeping things
uld you clue us in on how you sourced/built that panel? I'd love to
have access to something like that!
73
__
Clay Autery, KY5G
(318) 518-1389
On 04/21/20 21:49, Dave Cole wrote:
Thanks Clay... I decided to add the patch panel because I am sick of
haveing to rewire
ABSOLUTELY understand, and identify!
Could you clue us in on how you sourced/built that panel? I'd love to have
access to something like that!
73
__
Clay Autery, KY5G
(318) 518-1389
On 04/21/20 21:49, Dave Cole wrote:
Thanks Clay... I decided to add the patch panel be
ss to something like that!
73
__
Clay Autery, KY5G
(318) 518-1389
On 04/21/20 21:49, Dave Cole wrote:
Thanks Clay... I decided to add the patch panel because I am sick of
haveing to rewire everything I want to change an antenna! That and it
feeds my OCD issues. :)
73, and t
/20 18:53, Dave Cole wrote:
https://www.nk7z.net/rf-patch-panel/
I am undertaking a full rebuild of my operating position, note the
Patch Panel does not say K3 on it... That means I can replace things
with a K4 later
https://www.nk7z.net/rf-patch-panel/
I am undertaking a full rebuild of my operating position, note the Patch
Panel does not say K3 on it... That means I can replace things with a
K4 later... :)
--
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Spec
Odd you should mention that... I am rebuilding my operating position,
and am installing a patch panel... See:
https://www.nk7z.net/rf-patch-panel/
For a close up of teh patch panel. I used one of those services that
give you the design software, and then build to your spec...
73, and than
Amphenol more than likely does QC... So I would expect the majority of
their connectors to be better than the possibly non QC tested
connectors. I doubt most resellers QC the connectors. I am sure some
do, but I would love to know which ones do.
73, and thanks,
Dave (NK7Z)
https://www.nk7z.
The moonbounce boys use a KW or more...
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 4/4/20 9:01 PM, brianchapnick wrote:
This discussion fascinates me only in that I wonder why you ar
What is the recommended temp to run the KPA500 at?
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 4/4/20 3:01 PM, Andy Durbin wrote:
"Does "100% - 10 min, 100 W key-down" mean that if yo
The best line in the entire article is:
“I have some electronic equipment but really no experience or expertise
in building circuits or things,” he told Guardian Australia.
Entire article:
https://www.theguardian.com/australia-news/2020/mar/30/astrophysicist-gets-magnets-stuck-up-nose-while-in
wrote:
Thanks. With the information from Dave, I got Winlink controlling the K3S.
Thanks for your reply as well, Hank.
I assume I would use the same radio settings as for other digital modes, such
as FT8, except for sideband.
Lee
KV5M
On Mar 23, 2020, at 8:02 PM, Dave Cole wrote:
Here ya
Check your direct email Mike...
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 3/21/20 7:56 PM, Mike Short wrote:
Does anyone have a K3, not K3S manual they could email? I have a 57xx S/
https://www.qsl.net/4nec2/
Slightly different, but very usable and free... Also, it supports
variables... Very nice antenna modeling for free...
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Reso
Hi Dave,
Using the setup described at:
https://www.nk7z.net/adding-external-keypad-k3/
I have been unable to swap to a KBD from the Genovation. I direct swap
fails, so prior to purchasing a switch, do a manual replace to insure it
works for you...
Macro Loading is by hand, using that God a
I have a handy flow chart for RFI location at:
https://www.nk7z.net/i-have-rfi-now-what-locating-it/
This may help...
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 2/26/20 8:54 AM, Dav
Hi,
Start with Jim's, (K9YC), pages, at:
http://www.k9yc.com/publish.htm
Read most of them, (the titles will direct you), then you will have a
far better idea of how to reduce RFI without a shielded room...
After that look at:
https://www.nk7z.net/rfi-now-house-cleaning/
I cleaned up my sha
noisy.
If you haven't taken the time to do an indepth study on your own house,
you
should. You might be surprised. I would plan an all day exercise when
everyone is out of the house.
Mike va3mw
On Tue, Feb 18, 2020 at 2:25 PM Dave Cole wrote:
Hi,
I might suspect something else...
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