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Re: EARLY ANDERSON POWER POLES
David Ferrington, M0XDF
When you say tongue, do you mean the metal contact or the plastic part that supports the contact?
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I have a vast number of housings, all from a prominent US supplier (Quicksilver) and they have an A, but no circle. Torberry UK also show pictures of housings with an A but not in a circle. Even the ones on the K3 and the lead do not have a circle. This image is from Torberry: 73 de David, M0XDF (K3 #174, P3 #108) -- Do not meddle in the affairs of Dragons,
For you are crunchy and taste good with ketchup!
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Re: EARLY ANDERSON POWER POLES
redarlington <rdarlington@...>
I'll see if I can dig up the side by side comparison photos I took. The ones I got on Amazon were fake. Even the A in a circle logo was upside down. I'll dig through Google photos when I'm awake. -Bob
Someone mentioned earlier there are fake APP's around.
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Re: Antenna Connection Irregularities
I started wiggling coax and found a bad section between the K3s and the amp. I replaced it and so far seems ok.
Don WB6BEE
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Re: Antenna Connection Irregularities
NS2N_PTA@outlook.com
Need to isolate ... try without amp ... if possible, jumper antenna(s) so that the switches are not used. Could also be a relay. Any barrel connector is suspect if it isn't Amphenol.
And so on ...
NS2N
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Re: Antenna Connection Irregularities
Dave Cole
When you solve this, please post the solution...
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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.
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Re: Antenna Connection Irregularities
Michael Kopec
I had a similar problem, but on only 6 thru 20m. Traced it to a dirty? center pin PL259 connection at the antenna. I inspected than cleaned it with DeoxIT. Problem went away. 1 year later it reoccurred, cleaned it again and problem went away. I could see this happening on my P3 grass level. No swr or transmit problem when this occurred.
On Wednesday, April 29, 2020, 08:48:55 AM EDT, wb6bee <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
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Re: EARLY ANDERSON POWER POLES
Someone mentioned earlier there are fake APP's around.
The fake insert has a large A imprinted on the tongue. The fake one is 0.5mm thick where as the proper one is 0.6mm thick. The proper one has a longer V indentation on the tongue which makes it stiffer and hence more reliable. I will try to post a picture of the two in the photos folder. There are also subtle differences in the plastic holder. -- 73s Bob G3REP
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Re: Antenna Connection Irregularities
Richard Smith
Same thing happened to me and was caused by faulty connection.
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RAS
On Apr 29, 2020, at 08:01, Dave Cole <dave@nk7z.net> wrote:
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Re: Antenna Connection Irregularities
Dave Cole
That is exactly what it sounds like...
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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.
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Antenna Connection Irregularities
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
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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:
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Re: K3 supply voltages
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
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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
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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.
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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)
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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
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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:
73 Lyn, W0LEN
From: Elecraft-K3@groups.io [mailto:Elecraft-K3@groups.io] On Behalf Of 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
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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
I have replaced several troublesome APP connectors with these, and have had zero failures:
73 Lyn, W0LEN
From: Elecraft-K3@groups.io [mailto:Elecraft-K3@groups.io] On Behalf Of 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
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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:
73 Lyn, W0LEN
From: Elecraft-K3@groups.io [mailto:Elecraft-K3@groups.io] On Behalf Of 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
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Re: K3 supply voltages
Lyn Norstad
I have replaced several troublesome APP connectors with these, and have had zero failures:
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
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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)_/¯
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