Re: [Elecraft] K3 loss of rx signal

ailman.qth.net Subject: Re: [Elecraft] K3 loss of rx signal Jim, I too had an issue with a couple of cables between my K3 and P3. Had to wiggle the cable every few days to get rid of the extra noise on the P3. Finally replaced the cable with a 3 foot Amphenol BNC cable, part number 115101-30-36.00 and

Re: [Elecraft] K3 loss of rx signal

Jim, I too had an issue with a couple of cables between my K3 and P3. Had to wiggle the cable every few days to get rid of the extra noise on the P3. Finally replaced the cable with a 3 foot Amphenol BNC cable, part number 115101-30-36.00 and have never had the issue again. The cable is ma

Re: [Elecraft] K3 loss of rx signal (part# correction)

Oops, I meant 31-2 and 31-202, as the 31-212 is for rg 59. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by:

Re: [Elecraft] K3 loss of rx signal

I'm replying late to this subject as I've been out of town and have many digests to go thru...speaking of Amphenol BNC's: I have had continuing problems with the original cable to go from K3 to P3 from day one. Yes, those great folks at Elecraft sent me a replacement cable gratis, but I have to

Re: [Elecraft] K3 loss of rx signal

On Tue,4/4/2017 2:19 PM, donov...@starpower.net wrote: I'm sure the Amphenol connectors are very high quality and perhaps not as leaky and unreliable as generic (or worn) connectors The problem with that is that it assumes that the Amphenol connector you properly installed is mated to another

Re: [Elecraft] K3 loss of rx signal

x27;t make that mistake again. 73, Barry K3NDM -- Original Message -- From: donov...@starpower.net To: "Elecraft Reflector" Sent: 4/4/2017 5:19:47 PM Subject: Re: [Elecraft] K3 loss of rx signal Hi Ron, If you've ever used BNC connectors in a lab environment -- espe

Re: [Elecraft] K3 loss of rx signal

I've pretty much standardized on Amphenol connectors. It's worth paying a little more and having less headaches. From: Ron D'Eau Claire To: donov...@starpower.net; 'Elecraft Reflector' Sent: Tuesday, April 4, 2017 5:12 PM Subject: Re: [Elecraft] K3 loss of

Re: [Elecraft] K3 loss of rx signal

m: "Ron D'Eau Claire" To: donov...@starpower.net, "Elecraft Reflector" Sent: Tuesday, April 4, 2017 9:09:32 PM Subject: RE: [Elecraft] K3 loss of rx signal Good point Frank. Amphenol specs leakage for their BNC connectors at 3GHz where they claim 55 dB. By comparison the

Re: [Elecraft] K3 loss of rx signal

lector" Sent: Tuesday, April 4, 2017 9:09:32 PM Subject: RE: [Elecraft] K3 loss of rx signal Good point Frank. Amphenol specs leakage for their BNC connectors at 3GHz where they claim 55 dB. By comparison they claim 90 dB at 3 GHz for their type N connectors. I've never felt

Re: [Elecraft] K3 loss of rx signal

ginal Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of donov...@starpower.net Sent: Monday, April 3, 2017 9:38 PM To: Elecraft Reflector Subject: Re: [Elecraft] K3 loss of rx signal BNC connectors rate high for convenience and low for performance, especially le

Re: [Elecraft] K3 loss of rx signal

W3LPL - Original Message - From: "Ron D'Eau Claire" To: "Edward R Cole" , "Elecraft Reflector" Sent: Tuesday, April 4, 2017 2:12:03 AM Subject: Re: [Elecraft] K3 loss of rx signal Note that BNC connectors can easily handle a kW of RF power

Re: [Elecraft] K3 loss of rx signal

When I was plugging and unplugging stubs and traps chasing the broadcast interference problem and testing mitigations, it got a lot easier when I add a bunch of adapters to make the process attaching a BNC instead of a UHF. UHF connectors seem easier to fit onto 1/2 inch coax though. 73 Bill

Re: [Elecraft] K3 loss of rx signal

> Sent: Monday, April 3, 2017 6:24 PM > To: Elecraft Reflector > Subject: Re: [Elecraft] K3 loss of rx signal > > Simple - use something better than PL-259's: > > I mainly use N connectors for low loss/high power and BNC for low power > inside the shack connections.

Re: [Elecraft] K3 loss of rx signal

: Elecraft Reflector Subject: Re: [Elecraft] K3 loss of rx signal Simple - use something better than PL-259's: I mainly use N connectors for low loss/high power and BNC for low power inside the shack connections. I also have TNC and sma connectors. Most connectors need a 1/4 turn beyond finger tigh

Re: [Elecraft] K3 loss of rx signal

Ok.. My K3 has done something similar recently. When you suspect that the RX has gone dead, try holding the Tune button and force the radio to transmit a CW carrier. I suspect you'll find that you will get no output power aswell... In this case the problem is with the local oscillator and you wo

Re: [Elecraft] K3 loss of rx signal

Simple - use something better than PL-259's: I mainly use N connectors for low loss/high power and BNC for low power inside the shack connections. I also have TNC and sma connectors. Most connectors need a 1/4 turn beyond finger tight for reliable connections. Sure cure for loose connectors

Re: [Elecraft] K3 loss of rx signal

When that happens, the connector inside the radio is either of inferior quality or the installation method is wrong. A PROPER chassis-mount female UHF connector either has four mounting screws to prevent it from rotating . While there are also connectors without those mounting screws with a squ

Re: [Elecraft] K3 loss of rx signal

There's a difference in snug and tight. Sent from my iPhone ...nr4c. bill > On Apr 3, 2017, at 10:19 AM, Phil Hystad wrote: > > >> On Apr 3, 2017, at 5:25 AM, Nr4c wrote: >> >> Don't overlook the obvious. Check to make sure the connectors are all very >> tight. "Hand snug" is not good en

Re: [Elecraft] K3 loss of rx signal

...@mailman.qth.net] On Behalf Of danny.higg...@keme.co.uk Sent: Monday, April 03, 2017 8:43 AM To: Guy Olinger K2AV ; LA7NO ; elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 loss of rx signal I had a similar frustrating problem with a BNC patch lead. I bought some cheap leads at a rally and I

Re: [Elecraft] K3 loss of rx signal

tightening seems to be sufficient in most situations. From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Guy Olinger K2AV Sent: Monday, April 3, 2017 8:04 AM To: Phil Hystad Cc: Elecraft Reflector Subject: Re: [Elecraft] K3 loss of rx signal On Mon, Apr 3, 2017 at 10:19 AM

Re: [Elecraft] K3 loss of rx signal

Outdoors, PL259 tightened by hand in cool/cold weather will come loose in warm weather. This is particularly vexing when the connection is up on a tower out on a boom to a balun on the driven element. Pliers plus maxi-sealing against the weather is the rule for these. The teeth can be misaligned

Re: [Elecraft] K3 loss of rx signal

On Mon, Apr 3, 2017 at 10:19 AM, Phil Hystad wrote: > What do you mean “Hand Snug” is not good enough? Lordee, I've seen, done, and heard of these things so many times... PL259 the worst offender, with BNC close second. Mini-coax TMP in a class by itself. On the PL259, if the teeth around the e

Re: [Elecraft] K3 loss of rx signal

Don, In my experience, PL-259s do not get tightened properly when the little teeth on the end do not engage properly. So, when I tighten PL-259s, I make sure that the teeth fit in together properly and this always gives a snug fit. Note: I am not sure if these are called teeth or not. In alm

Re: [Elecraft] K3 loss of rx signal

Phil, PL-259s depend on tightness to make a good connection to the shield. This is an often overlooked cause of problems. After hand tightening, snug them up just a bit more with pliers if you want them to be reliable. 73, Don W3FPR On 4/3/2017 10:19 AM, Phil Hystad wrote: On Apr 3, 2017,

Re: [Elecraft] K3 loss of rx signal

You may want to tap individual connectors carefully so “just one gets tapped”. Frank KG9H > On Apr 3, 2017, at 9:26 AM, LA7NO wrote: > > Thanks for the suggestions. You are of course right. > > The antenna connector is good, so I'll have to open up the K3 and check > around here and there. > It

Re: [Elecraft] K3 loss of rx signal

Thanks for the suggestions. You are of course right. The antenna connector is good, so I'll have to open up the K3 and check around here and there. It is quite 'full' with 2nd rx, PA and tuner, so some dismantling could be required to check most connections. - 73, Per-Tore / LA7NO -- Vi

Re: [Elecraft] K3 loss of rx signal

> On Apr 3, 2017, at 5:25 AM, Nr4c wrote: > > Don't overlook the obvious. Check to make sure the connectors are all very > tight. "Hand snug" is not good enough! > > Sent from my iPad > ...bc nr4c What do you mean “Hand Snug” is not good enough? I don’t remember any connectors in the K3 th

[Elecraft] : K3 loss of rx signal

Had same problem … retightened mounting hardware on synthesizer board. Paul WB2ABD Sent from Mail for Windows 10 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elec

Re: [Elecraft] K3 loss of rx signal

50 Ohm patch cable back in, the centre pin did not make contact any more. It took me a long time to find the cause, and now all the 75 Ohm leads are in the bin. 73, Danny, G3XVR From: Guy Olinger K2AV Sent: 03 April 2017 11:56 To: LA7NO; elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 loss

Re: [Elecraft] K3 loss of rx signal

Don't overlook the obvious. Check to make sure the connectors are all very tight. "Hand snug" is not good enough! Sent from my iPad ...bc nr4c > On Apr 3, 2017, at 4:41 AM, LA7NO wrote: > > Hello group, > > I have several times experienced that the K3 receiver goes 100% dead. Same > as if no

Re: [Elecraft] K3 loss of rx signal

Could be a relay, however The most common source of intermittents is cords and connectors that are either only partially connected or have had wires stressed past breaking but held together intermittently by insulation, or were never soldered, or were poorly crimped in manufacture. Banging on

[Elecraft] K3 loss of rx signal

Hello group, I have several times experienced that the K3 receiver goes 100% dead. Same as if no antenna was connected. A smart bump on the K3 brings it back to normal. I suspect a relay. The question is which one? Suggestion anyone? 73, Per-Tore / LA7NO -- View this message in context: ht

Re: [Elecraft] K3: Loss of rx signal

Rick, In one way I am sorry to hear that you have a problem with occasional loss of RX after TX, however I am pleased that I am now not the only one to report this problem ! I was hoping that the new F/W releases would rid my K3 of this annoying phenomenon, but that did not happen... I have a seq

[Elecraft] K3: Loss of rx signal

When running some CW contacts on 40m, I had the unpleasant experience of having the rx go almost totally dead (very low noise level - no signals) immediately after calling a station. Nothing seemed to recover it so I power cycled the radio in time to hear the other station send ..--.. This happe