I am reviewing Jim's (K9YC) slides and have gotten to the DC Power Supply
(forget the slide #s) . I currently have a Alinco DM-330MV which supplies
my needs. However, after looking internally and studying the schematics,
there is no way to isolate circuit return (negative) from the chassis case
gro
Interesting statement. How did you determine this?
I brought home from work my professional service monitor and checked
my K3 (SN-4340) s-meter. Except from S0-S1 all other steps were
exactly 6-dB. S9 = -73 dBm as advertised. I didn't bother much
measuring above S9 so cannot comment on lin
My tower grounds are my house grounds. All hardline is separately grounded
though individual rods and tied to the house ground. My transceiver is tied to
the house ground.
I seriously doubt tying other equipment to that ground will reduce noise levels
at all, not to speak of the difficulty of
And in the meantime, lightning protection helps to reduce the noise and
risks of 'everyday' static noise sources like wind, snow, blowing dust
and even rain static. HELPS, not removes.
Having (last fall) just installed a basic dissipation system, the
difference can be quite startling and can
The problems of hum and RF pickup are reduced by simply connecting all the
equipment chassis together with low inductance conductors. It’s a safety
feature as well, providing a backup to the power cables’ ground conductor, and
ensuring that disconnecting a coax jumper won’t suddenly put you in t
I changed the ring terminals on my grounding system to spade
lugs for ease of removal.
73 Bill AE6JV
On 4/23/20 at 10:27 AM, n...@comcast.net (N4ZR) wrote:
I think the answer lies in the ground bus. I used a 3/4"
copper water pipe along the back edge of my desk, with a short
pigtail of #2 w
Oh yes, I have a K3/P3
Randy N1KWF
On Thu, Apr 23, 2020 at 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 of the rigs. See:
>
> https://www.nk7z.net/rebuilding-the-shack/
>
> Look at a few
Ok. I am sure I will get the wrath of God for going in this direction but
here we go. I was licensed in 91 and have put together 2 average so contest
stations with no grounds. None what so ever except power grounds. I have a
bunch of equipment, not intentionally interconnected, that has had no issu
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 slid
On 4/23/2020 7:27 AM, N4ZR wrote:
I used a 3/4" copper water pipe along the back edge of my desk, with a
short pigtail of #2 wire to the K3.
#2 ? That's FAR larger than needed for bonding inside the shack.
Also, remember that lightning is an RF event, not a DC event, so
inductance dominat
On 4/23/2020 7:23 AM, Dave Cole wrote:
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
On 4/23/2020 6:11 AM, Randy Farmer wrote:
I'm attempting to follow Jim's advice (see slides 91 through 113 in his
Grounding and Audio presentation referenced below).
Hi Randy,
In my station, I use crimp lugs that fit under chassis screws. Stranded
wire works fine. When bonding in a string bet
] Elecraft K3s, etc. bonding
I think the answer lies in the ground bus. I used a 3/4" copper water
pipe along the back edge of my desk, with a short pigtail of #2 wire to
the K3. I used a yellow-jacketed Home Depot ring terminal on both ends
of the #2, and metal-tapping screws to connect t
Poke a hole in the braid and sandwich it between two large washers. Or
drill a hole in strap and sandwich that. You can then put multiple
holes in the strap to connect other wires.
I wish Elecraft had larger ground lugs.
k4ia, Buck
K3s# 11497
Honor Roll 8B DXCC
EasyWayHamBooks.com
On 4/23/
I think the answer lies in the ground bus. I used a 3/4" copper water
pipe along the back edge of my desk, with a short pigtail of #2 wire to
the K3. I used a yellow-jacketed Home Depot ring terminal on both ends
of the #2, and metal-tapping screws to connect to the bus.
73, Pete N4ZR
Check
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
I use thin, flat, copper strips. I use a paper punch to make neat holes
in them. You can stack a whole bunch of them on a terminal. They are a
little fragile, but you don't have to mess with them often.
73,
Victor, 4X6GP
Rehovot, Israel
Formerly K2VCO
CWops no. 5
http://www.qsl.net/k2vco/
On 23
Hi Randy,
Thanks for the info! Upon reflection, I will be following Jim's slide 105.
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 6:11 AM, Randy Farmer wrote:
Thanks for the i
Thanks for the info, Dave. Your approach works fine IF you're using the
ground bar ground technique. I'm attempting to follow Jim's advice (see
slides 91 through 113 in his Grounding and Audio presentation referenced
below). For this, you need bond wires between the individual boxes in
the stat
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
I'm currently in the process of wiring up my new station and I happen to
be working on the equipment bonding phase for my pair of K3s SO2R
station. I'm doing my best to get decent connectivity between the
station components, but can't really figure out how to terminate large
(AWG 10) wire to th
On 4/20/2020 6:08 PM, Tom Norris NB5Q wrote:
I'm asking what method and
attachment point, to each piece of equipment, you experienced K-Line owners
use to bond the K3s, P3, SP3, etc. and then on to the station ground.
I use wires soldered to screw lugs, making sure that the attachment
point is
I don't want to re-invent the wheel so I'm asking what method and
attachment point, to each piece of equipment, you experienced K-Line owners
use to bond the K3s, P3, SP3, etc. and then on to the station ground. I
have
Thank you, Tom NB5Q
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