Date   

Re: Antenna Connection Irregularities

Richard Smith <ku4nz01@...>
 

Same thing happened to me and was caused by faulty connection.

RAS

On Apr 29, 2020, at 08:01, Dave Cole <dave@...> wrote:

That is exactly what it sounds like...

73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources

On 4/29/20 5:44 AM, wb6bee wrote:
I am not sure where to post this question. I have K3s to KPA 1500 to remote antenna switches to various antennas.
Radio can be dead quiet, like not connected to an antenna. I touch the key to transmit and the band comes alive. I can wait a bit and it goes quiet again. Touch the key and back alive. As if there is a dirty contact somewhere on the antenna system (like a relay) that needs RF to make it work.
Any thoughts on where to look
Don
WB6BEE


Re: Antenna Connection Irregularities

Dave (NK7Z)
 

That is exactly what it sounds like...

73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources

On 4/29/20 5:44 AM, wb6bee wrote:
I am not sure where to post this question.    I have K3s to KPA 1500 to remote antenna switches to various antennas.
Radio can be dead quiet, like not connected to an antenna.   I touch the key to transmit and the band comes alive.   I can wait a bit and it goes quiet again.   Touch the key and back alive.    As if there is a dirty contact somewhere on the antenna system (like a relay) that needs RF to make it work.
Any thoughts on where to look
Don
WB6BEE


Antenna Connection Irregularities

wb6bee
 

I am not sure where to post this question.    I have K3s to KPA 1500 to remote antenna switches to various antennas.

Radio can be dead quiet, like not connected to an antenna.   I touch the key to transmit and the band comes alive.   I can wait a bit and it goes quiet again.   Touch the key and back alive.    As if there is a dirty contact somewhere on the antenna system (like a relay) that needs RF to make it work.

Any thoughts on where to look

Don
WB6BEE


Re: EARLY ANDERSON POWER POLES

Kent Trimble, K9ZTV
 

My K3 is serial number 21 and is the first kitted K3.

During assembly, I was concerned about the tension of the pre-installed Anderson Power Pole attached to the rear panel.  It captured the mating connector but wasn't as snug as other APP connections I was used to.  Visually the internal metal tabs appeared to be properly locked.

A month later, NØSS (s.n. 8) and I were invited to display the only two K3s that had been shipped to Missouri at the 2007 ARRL Midwest Convention in Lebanon.  A multi-band dipole outside the arena allowed attendees to operate the radios on-the-air.  During set-up, I tripped over the coax and ripped out the power cable from my K3.  If the tension on that APP had not been as light as it was, the K3 would have ended up on the floor.

Tom's subsequent examination of both rigs revealed wires attached to the APPs on the inside were too short and thus displacing the metal tabs just enough to prevent solid hefty connections.

Bruce's serial number 158 experience, together with ours, probably result from factory growing pains at whatever facility was installing APP connectors in those early days.

73,

Kent  K9ZTV
Jefferson City, Missouri



On 4/28/2020 10:18 AM, Bruce Prior wrote:
My K3 is S/N 00158, as stated in my QST review. The power cable came with the radio. Is it possible that very early on, Elecraft did not crimp its Anderson Powerpole connectors? The problem is that there is very little friction to hold the connectors reliably attached to the K3. They slip out far too easily.
73,
Bruce Prior N7RR
_._,_._,_

Virus-free. www.avg.com


Re: K3 supply voltages

Bob Hammond G4DBW
 

Also use Anderson Power Poles for all my 12 volt DC - buy them from a reputable source ( SOTA Beams in the UK)  and use a decent crimptool from the same source. No problems at all in my shack. 

Use a short a lead to my K3 as possible, wired directly to the terminals of my Samlex Power Supply (rated at 35A) 

Bob G4DBW


APP connectors

 

I've had zero problems with APP connectors, in any application. They're an em-comm standard, and have been far less problematic than Molex or other connectors. We assemble them according to the manufacturer's instructions, and there's no excessive voltage drop, heating, or other issues.

It's possible that in isolated cases they have been abused or were defective, but at the same background rate affecting any other connector type.

73,
Wayne
N6KR


Re: K3 supply voltages

David Ferrington, M0XDF
 

Sounds like there is something wrong with that pair. Elecraft have been using APPs for some time, the K100 (K2 Amp) comes with APPs. I have K3 Serial No. 174 and never had a problem. And I’ve used my home made cables at times too.

Never had a problem with any APPs and everything 12v in my Shack and gear is APP, even took the Molex off my FT-857 and replaced it with APPs (the molex was going intermittent!)

73 de David, M0XDF (K3 #174, P3 #108)
-- 
Any hound a porcupine nudges, Can't be blamed for harboring grudges.
I know one hound that laughed all winter, At a porcupine that sat on a splinter.                                                 
- Ogden Nash (1902-1971)

On 28 Apr 2020, at 16:18, Bruce Prior <n7rr@...> wrote:

My K3 is S/N 00158, as stated in my QST review. The power cable came with the radio. Is it possible that very early on, Elecraft did not crimp its Anderson Powerpole connectors? The problem is that there is very little friction to hold the connectors reliably attached to the K3. They slip out far too easily.
73,
Bruce Prior N7RR


Re: K3 supply voltages

Bruce Prior
 

My K3 is S/N 00158, as stated in my QST review. The power cable came with the radio. Is it possible that very early on, Elecraft did not crimp its Anderson Powerpole connectors? The problem is that there is very little friction to hold the connectors reliably attached to the K3. They slip out far too easily.
73,
Bruce Prior N7RR


Re: K3 supply voltages

QUENTIN COLLIER
 

I've also used these connectors (but not on my K3) and find them robust, reliable and good value for money.


73, Quin G3WRR


On Tuesday, 28 April 2020, 14:39:28 BST, Lyn Norstad <lyn@...> wrote:


I have replaced several troublesome APP connectors with these, and have had zero failures:

<https://www.amazon.com/MCIGICM-Upgrade-Female-Bullet-Connectors/dp/B07Q2SJSZ1?ref_=ast_sto_dp>

 

73

Lyn, W0LEN

 

 

From: Elecraft-K3@groups.io [mailto:Elecraft-K3@groups.io] On Behalf Of Bruce Prior
Sent: Monday, April 27, 2020 11:46 AM
To: Elecraft-K3@groups.io
Subject: Re: [Elecraft-K3] K3 supply voltages

 

My problem is the finicky Anderson Powerpole connectors, which are far too loose. I commented about the problem in my QST review of the K3 in the April 2008 issue. See page 45 of my otherwise stellar review.

73,

Bruce Prior N7RR


Re: K3 supply voltages

Lyn Norstad
 

Charlie –

 

I made the (not so hard) decision that the only ‘standard’ I need is MY standard.

 

73

Lyn, W0LEN

 

From: Elecraft-K3@groups.io [mailto:Elecraft-K3@groups.io] On Behalf Of Charlie T, k3ICH
Sent: Tuesday, April 28, 2020 9:43 AM
To: Elecraft-K3@groups.io
Subject: Re: [Elecraft-K3] K3 supply voltages

 

Very nice, re-usable and relatively cheap connector, Lyn.

Sure wish they were the standard instead of those one shot, (deleted expletive)  A-P’s !

 

73, Charlie k3ICH

 

 

 

 

From: Elecraft-K3@groups.io <Elecraft-K3@groups.io> On Behalf Of Lyn Norstad
Sent: Tuesday, April 28, 2020 9:39 AM
To: Elecraft-K3@groups.io
Subject: Re: [Elecraft-K3] K3 supply voltages

 

I have replaced several troublesome APP connectors with these, and have had zero failures:

<https://www.amazon.com/MCIGICM-Upgrade-Female-Bullet-Connectors/dp/B07Q2SJSZ1?ref_=ast_sto_dp>

 

73

Lyn, W0LEN

 

 

From: Elecraft-K3@groups.io [mailto:Elecraft-K3@groups.io] On Behalf Of Bruce Prior
Sent: Monday, April 27, 2020 11:46 AM
To: Elecraft-K3@groups.io
Subject: Re: [Elecraft-K3] K3 supply voltages

 

My problem is the finicky Anderson Powerpole connectors, which are far too loose. I commented about the problem in my QST review of the K3 in the April 2008 issue. See page 45 of my otherwise stellar review.

73,

Bruce Prior N7RR


Re: K3 supply voltages

Charlie T, k3ICH
 

Very nice, re-usable and relatively cheap connector, Lyn.

Sure wish they were the standard instead of those one shot, (deleted expletive)  A-P’s !

 

73, Charlie k3ICH

 

 

 

 

From: Elecraft-K3@groups.io <Elecraft-K3@groups.io> On Behalf Of Lyn Norstad
Sent: Tuesday, April 28, 2020 9:39 AM
To: Elecraft-K3@groups.io
Subject: Re: [Elecraft-K3] K3 supply voltages

 

I have replaced several troublesome APP connectors with these, and have had zero failures:

<https://www.amazon.com/MCIGICM-Upgrade-Female-Bullet-Connectors/dp/B07Q2SJSZ1?ref_=ast_sto_dp>

 

73

Lyn, W0LEN

 

 

From: Elecraft-K3@groups.io [mailto:Elecraft-K3@groups.io] On Behalf Of Bruce Prior
Sent: Monday, April 27, 2020 11:46 AM
To: Elecraft-K3@groups.io
Subject: Re: [Elecraft-K3] K3 supply voltages

 

My problem is the finicky Anderson Powerpole connectors, which are far too loose. I commented about the problem in my QST review of the K3 in the April 2008 issue. See page 45 of my otherwise stellar review.

73,

Bruce Prior N7RR


Re: K3 supply voltages

Lyn Norstad
 

I have replaced several troublesome APP connectors with these, and have had zero failures:

<https://www.amazon.com/MCIGICM-Upgrade-Female-Bullet-Connectors/dp/B07Q2SJSZ1?ref_=ast_sto_dp>

 

73

Lyn, W0LEN

 

 

From: Elecraft-K3@groups.io [mailto:Elecraft-K3@groups.io] On Behalf Of Bruce Prior
Sent: Monday, April 27, 2020 11:46 AM
To: Elecraft-K3@groups.io
Subject: Re: [Elecraft-K3] K3 supply voltages

 

My problem is the finicky Anderson Powerpole connectors, which are far too loose. I commented about the problem in my QST review of the K3 in the April 2008 issue. See page 45 of my otherwise stellar review.

73,

Bruce Prior N7RR


Re: K3 supply voltages

Petr Ourednik
 

Bruce,

is it possible to download this article somewhere for non-subscribers please?

--
73 - Petr, OK1RP
--
B: http://goo.gl/Fd2JhJ
MeWe: https://bit.ly/2HGPoDx
MeWe: https://bit.ly/2FmwvDt
--
What could be easier..? ¯‍∖‍_‍(‍ツ‍)‍_‍/‍¯


Re: K3 supply voltages

David Ferrington, M0XDF
 

I second that, everything 12v in my shack etc is APP. only if it has an adapter that goes in a ‘cigar’ socket does in not. 

-73 de M0XDF

On 27 Apr 2020, at 18:49, Alan Baker <g4gnx@...> wrote:


If you're having problems with Anderson Powerpoles, then they've been incorrectly fitted, or are fakes.

They do NOT need soldering, unless it's to a PCB. Crimping is actually more reliable than soldering, provided that the approved crimp tool is used.

Elecraft use the correct tools to fit Powerpoles to cables that they supply. Others may not.

All of the issues I've ever seen with Powerpoles is either badly fitted crimps (usually a cheap crimp tool used), the wrong tab for the cable and shell, or counterfeit powerpoles.

73,

Alan. G4GNX


------ Original Message ------
From: "Bruce Prior" <n7rr@...>
Sent: 27/04/2020 17:46:20
Subject: Re: [Elecraft-K3] K3 supply voltages

My problem is the finicky Anderson Powerpole connectors, which are far too loose. I commented about the problem in my QST review of the K3 in the April 2008 issue. See page 45 of my otherwise stellar review.
73,
Bruce Prior N7RR
_.


Re: K3 supply voltages

Alan Baker - G4GNX
 

If you're having problems with Anderson Powerpoles, then they've been incorrectly fitted, or are fakes.

They do NOT need soldering, unless it's to a PCB. Crimping is actually more reliable than soldering, provided that the approved crimp tool is used.

Elecraft use the correct tools to fit Powerpoles to cables that they supply. Others may not.

All of the issues I've ever seen with Powerpoles is either badly fitted crimps (usually a cheap crimp tool used), the wrong tab for the cable and shell, or counterfeit powerpoles.

73,

Alan. G4GNX


------ Original Message ------
From: "Bruce Prior" <n7rr@...>
Sent: 27/04/2020 17:46:20
Subject: Re: [Elecraft-K3] K3 supply voltages

My problem is the finicky Anderson Powerpole connectors, which are far too loose. I commented about the problem in my QST review of the K3 in the April 2008 issue. See page 45 of my otherwise stellar review.
73,
Bruce Prior N7RR
_.


Re: K3 supply voltages

Ray Maxfield
 

Remove ALL other Connectors and Wire Direct to the K3.

Get another power supply for the other stuff,

then you can the  Anderson Poles.   KISS.   

-  WA6VAB   

 

Sent from Mail for Windows 10

 

From: Bruce Prior
Sent: Monday, April 27, 2020 9:46 AM
To: Elecraft-K3@groups.io
Subject: Re: [Elecraft-K3] K3 supply voltages

 

My problem is the finicky Anderson Powerpole connectors, which are far too loose. I commented about the problem in my QST review of the K3 in the April 2008 issue. See page 45 of my otherwise stellar review.

73,

Bruce Prior N7RR

 


Re: K3 supply voltages

Bruce Prior
 

My problem is the finicky Anderson Powerpole connectors, which are far too loose. I commented about the problem in my QST review of the K3 in the April 2008 issue. See page 45 of my otherwise stellar review.
73,
Bruce Prior N7RR


Re: K3 supply voltages

Steve
 

My bet is loss is due to excessive length of your power supply cable.  I found the supplied Elecraft cable had too much loss.  After cutting the length in half and securely connecting directly to the P/S large rear terminals the voltage loss was cut in half.


Re: k3 (usb upgrade), MAC and FT8 , CAT control not working

OZ0J Joe
 

I have no experience with JS8, but have you checked the USB port number in JS8 has not changed?

And when JS8 and the radio is active have you checked the settings for COM port and USB port numbers. Look at the device manager in Windows, if you are using Windows.

 

Also check the baud rate in JS8 if that exists.

 

73 Joe, OZ0J

https://english.oz0j.dk

 

Fra: Elecraft-K3@groups.io <Elecraft-K3@groups.io> På vegne af robert@...
Sendt: 24. april 2020 17:43
Til: Elecraft-K3@groups.io
Emne: [Elecraft-K3] k3 (usb upgrade), MAC and FT8 , CAT control not working

 

I have the MIC set to line in and USB selected in the js8 software but still get error message. Rig set to DATA-A.  I have gotten fldigi to work with psk31 but can't figure out what js8 is not working


Re: K3/KPA500 issue

Bart Campbell
 

Gerry,

I had the exact same problem except on 17 meters.  Performing a transmitter gain calibration with the K3 utility solved the problem.

73,
Bart, NS4X



On Sat, Apr 25, 2020 at 4:25 PM Gerry Villhauer <w0gv@...> wrote:
I usually operate CW. When I go to SSB on 75 meters with the KPA500 on, the amp will not put our power; unless I do the following: Go to CW mode and key up for only a second. Go back to SSB mode and I get power. Any suggestions or comments appreciated.

Gerry, W0GV

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