Chuck, I am late to this discussion so I might be saying things that
already been said. I found the same issue. Voltage down to 11.5 volts on
any ps I used. So, I found the issue was power pole connectors that were
to light. Look for power pole connectors that handle 30 amps or so. Power
poles
ink/?LinkId=550986> for Windows 10
From: Gmail<mailto:anyone1...@gmail.com>
Sent: Saturday, April 25, 2020 9:03 AM
To: Bob McGraw K4TAX<mailto:rmcg...@blomand.net>
Cc: Elecraft@mailman.qth.net<mailto:Elecraft@mailman.qth.net>
Subject: Re: [Elecraft] K3S poor CW keying further i
far end of the 12 volt power cable.
> Pete W4WWQ
>
> - Original Message -
> From:
> To:
> Sent: 4/25/2020 2:47:12 PM
> Subject: Re: [Elecraft] K3S poor CW keying further investigation
> __
;>> is the way my rigs and VHF/UHF amps will be connected from now on with
>>>>>> only
>>>>>> a fuse inline. The low current stuff will stay on the power pole strip
>>>>>> where they do just fine lighting up lights and stuff.
>>>
11:42:35 -0400
From: Don Wilhelm
To: Ron Manfredi , elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3S poor CW keying further investigation
Message-ID:
Content-Type: text/plain; charset=utf-8; format=flowed
Solder each power supply lead to a short length of #10 wire. Insulate
the connection
To bad the power supply doesn't have remote voltage sense to regulate at the
far end of the 12 volt power cable.
Pete W4WWQ
- Original Message -
From:
To:
Sent: 4/25/2020 2:47:12 PM
Subject: Re: [Elecraft] K3S poor CW keying further investig
gt;>>> with only
>>>>> a fuse inline. The low current stuff will stay on the power pole
>>>>> strip
>>>>> where they do just fine lighting up lights and stuff.
>>>>>
>>>>>> On Sat, Apr 25, 2020
I want to do it right!
Gunny, KE0PVQ
Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for
Windows 10
From: Gmail<mailto:anyone1...@gmail.com>
Sent: Saturday, April 25, 2020 9:03 AM
To: Bob McGraw K4TAX<mailto:rmcg...@blomand.net>
Cc: Elecraft@mailman.qth.net<
On 4/25/2020 5:13 AM, Chuck Chandler wrote:
At rest
the K3S panel display shows 13.6V, with full power key down it dips to 11.5
or so. This seems like a lot. I'm running the power cable thru a
RigRunner Powerpole strip. If I can dig out another power supply from the
packed boxes I can wire t
;>>>>> On Sat, Apr 25, 2020, 09:16 Don Schroder wrote:
>>>>>>
>>>>>> Bob,
>>>>>>
>>>>>> Is it safe to run my K2 using Anderson Power Pole connections, and/or
>>>>>> RigRunner equipm
stuff.
>>>>
>>>>> On Sat, Apr 25, 2020, 09:16 Don Schroder wrote:
>>>>>
>>>>> Bob,
>>>>>
>>>>> Is it safe to run my K2 using Anderson Power Pole connections, and/or
>>>>> RigRunner equipment?
Change the connectors on the power supply to accommodate several ring
type connectors. Use 1" long #10 bolts, nuts, flat washers and
insulating washers which are easy to find at your local hardware store
and are very easy to use and replace. Then you can connect 8 to 10
pieces of equipment
ows 10
From: Gmail<mailto:anyone1...@gmail.com>
Sent: Saturday, April 25, 2020 9:03 AM
To: Bob McGraw K4TAX<mailto:rmcg...@blomand.net>
Cc: Elecraft@mailman.qth.net<mailto:Elecraft@mailman.qth.net>
Subject: Re: [Elecraft] K3S poor CW keying further investigation
Nuts, just measur
K4TAX<mailto:rmcg...@blomand.net>
Cc: Elecraft@mailman.qth.net<mailto:Elecraft@mailman.qth.net>
Subject: Re: [Elecraft] K3S poor CW keying further investigation
Nuts, just measure the drop between radio and power supply see if it is
reasonable. Mine is 0.25 volts when transmitting. I run 14.
ilto:rmcg...@blomand.net
<mailto:rmcg...@blomand.net>>
Cc: Elecraft@mailman.qth.net
<mailto:Elecraft@mailman.qth.net><mailto:Elecraft@mailman.qth.net
<mailto:Elecraft@mailman.qth.net>>
Subject: Re: [Elecraft] K3S poor CW keying further investigation
Nuts, ju
Solder each power supply lead to a short length of #10 wire. Insulate
the connection well.
73,
Don W3FPR
On 4/25/2020 11:12 AM, Ron Manfredi wrote:
Fewer power supplies (meaning the switching type) have actual terminal
bolts to use with ring connectors. If the supply doesn't have that type
Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for
>>> Windows 10
>>>
>>> From: Gmail<mailto:anyone1...@gmail.com <mailto:anyone1...@gmail.com>>
>>> Sent: Saturday, April 25, 2020 9:03 AM
>>> To: Bob McGraw K4TAX<
t;> For my info, what is the reason for NOT using them?
>>>
>>> I’m rewiring, and I want to do it right!
>>>
>>> Gunny, KE0PVQ
>>>
>>> Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for
>>> Windows 10
>>&
ailman.qth.net
<mailto:Elecraft@mailman.qth.net><mailto:Elecraft@mailman.qth.net
<mailto:Elecraft@mailman.qth.net>>
Subject: Re: [Elecraft] K3S poor CW keying further investigation
Nuts, just measure the drop between radio and power supply see if
it is reasonable. Mine
To: Bob McGraw K4TAX<mailto:rmcg...@blomand.net
<mailto:rmcg...@blomand.net>>
Cc: Elecraft@mailman.qth.net
<mailto:Elecraft@mailman.qth.net><mailto:Elecraft@mailman.qth.net
<mailto:Elecraft@mailman.qth.net>>
Subject: Re: [Elecraft] K3S poor CW keying further
om/fwlink/?LinkId=550986> for
Windows 10
From: Gmail<mailto:anyone1...@gmail.com>
Sent: Saturday, April 25, 2020 9:03 AM
To: Bob McGraw K4TAX<mailto:rmcg...@blomand.net>
Cc: Elecraft@mailman.qth.net<mailto:Elecraft@mailman.qth.net>
Subject: Re: [Elecraft] K3S poor CW keying
Gunny et al:
The issue with power distribution strips for DC is resistance. Every
contact or connection in the path adds some value of resistance. Using
Ohms law, where E = IR, we see that more resistance = more voltage
drop. This includes the resistance of the DC power cable and any
contac
ilman.qth.net>
Subject: Re: [Elecraft] K3S poor CW keying further investigation
Nuts, just measure the drop between radio and power supply see if it is
reasonable. Mine is 0.25 volts when transmitting. I run 14.0 out of supply.
Ray
W8LYJ
Sent from my iPad
On Apr 25, 2020, at 07:48, Bob McG
The short answer is that too much voltage drop on transmit puts
radios in an operational configuration where they produce more
IMD and other bad things.
Any connection in the power supply will introduce additional
resistance. At the current levels used during 100W transmission,
it doesn't tak
et>
> Cc: Elecraft@mailman.qth.net<mailto:Elecraft@mailman.qth.net>
> Subject: Re: [Elecraft] K3S poor CW keying further investigation
>
> Nuts, just measure the drop between radio and power supply see if it is
> reasonable. Mine is 0.25 volts when transmitting. I run 14.0 out
From: Gmail<mailto:anyone1...@gmail.com>
Sent: Saturday, April 25, 2020 9:03 AM
To: Bob McGraw K4TAX<mailto:rmcg...@blomand.net>
Cc: Elecraft@mailman.qth.net<mailto:Elecraft@mailman.qth.net>
Subject: Re: [Elecraft] K3S poor CW keying further investigation
Nuts, just measure the drop
Nuts, just measure the drop between radio and power supply see if it is
reasonable. Mine is 0.25 volts when transmitting. I run 14.0 out of supply.
Ray
W8LYJ
Sent from my iPad
> On Apr 25, 2020, at 07:48, Bob McGraw K4TAX wrote:
>
> As to the RigRunner power pole strip.PUT IT IN THE
As to the RigRunner power pole strip.PUT IT IN THE TRASH where
it belongs. NEVER NEVER NEVER use a power distribution strip to power
a 100 watt radio. ALWAYS connect the radio direct to the power supply
terminals. NO exceptions!
73
Bob, K4TAX
On 4/25/2020 7:13 AM, Chuck Chand
After more checking, I suspect the internal 100W amp is the common factor
in the poor keying characteristics I'm seeing and hearing about from my
rig. I am trying to determine if my power supply is doing it's job.
I'm using a TenTec 963 switching supply rated at 25A continuous. At rest
the K3S p
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