Re: [Elecraft] OT - JT65 on 2m

Kjeld, Not sure what is locally done in Denmark but as a 2m eme'er I can tell you that 144.000-144.100 is universally restricted to CW-only. 144.100-144.170 is used for digital eme with 144.140 also used for meteor scatter in NA. 144.170-144.200 in the USA is fairly un-used so open for SSB

Re: [Elecraft] Anti-static Pads

On 09/19/2016 08:32 PM, Richard Fjeld wrote: I stand corrected. I didn't realize the resistance was that great. I need to think of a simple way to determine conductivity rather than measuring the resistance. Here are the results of some anti-static mat testing that I did a few years ago.

Re: [Elecraft] Anti-static Pads

I stand corrected. I didn't realize the resistance was that great. I need to think of a simple way to determine conductivity rather than measuring the resistance. Thanks for the answers. Dick, n0ce __ Elecraft mailing list Home:

Re: [Elecraft] Anti-static Pads

The test procedure involves both the contact area and measuring a very high resistance - in the Gigaohm range. That requires very specialized equipment that few (if any) Hams have on hand. Useful "probes" for connecting to the mat run from $150 to almost $400. For example:

Re: [Elecraft] Anti-static Pads

10^9+ ohms [1,000 megohms or more] is pretty much "non-conductive" for anything we ordinary hams have to measure it. My Heath MM-1 just doesn't register at that. :-) Whether or not your mat is any good for ESD protection, and whether or not you can believe the specs if it has them, depends a

Re: [Elecraft] Anti-static Pads

Well, the resistance of a good one is probably higher than what a normal VOM could measure. A merger might measure it, but having never had access to one I couldn't be sure. On Sep 19, 2016 8:35 PM, "Richard Fjeld" wrote: At this point; A Question about how to properly test

Re: [Elecraft] Anti-static Pads

At this point; A Question about how to properly test an anti-static mat? I bought one last winter that appears to be totally non-conductive. I don't think it is my error. If others have mats like this, and are trusting them, I can see the possibility for failures. Dick, n0ce P.S. I like

[Elecraft] K3 Manual

The searchable emails did not cover this question, so if it was asked prior I apologize. Should K3 owners just stick with the K3 manual which is dated 2011 or should we start using the K3S manual? I guess the real question would be are these manuals now combined into one for both radios?

[Elecraft] Running stations with k3

Hello All, I did M/M with a big station in the NW running Icom 7700. Needless to say comparison between K3 (one was on site) versus Icom radios came into discussion during rest periods. Yes, the Icom 7700 played quite well, giving what some called "full-body" cw and easy to pick-out-stations

[Elecraft] NAQCC September Sprint this Wednesday Evening

The September sprint is this coming Wednesday evening local time (September 21st, EDT - 8:30-10:30PM, CDT - 7:30-9:30PM, MDT - 6:30-8:30PM, PDT - 5:30-7:30PM), which translates as Thursday, September 22nd, 0030 to 0230Z in all cases. For all the "official" information, please go to:

[Elecraft] DSP/Audio upgrade for K3

Anyone ever heard a fact or rumor (or conspiracy theory related to chemtrails) about what happened to the early advertised DSP board upgrade for the K3 that included the new low distortion AF amp in the K3S?? It was announced as one of the upgrades that would be available for the K3.

[Elecraft] K1 for sale

Elecraft K1 with 4-band module and original manual Available from an estate that I'm handling 73, Jan ~ contact off-list => k1nd at comcast dor net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help:

Re: [Elecraft] XG3 Calibration from 10MHz Standard?

Hi Maverick, The accuracy of the DG1022A stinks with the internal oscillator. Counter likewise is inaccurate. Look at the specs -- something like 50 ppm. I had one and measured how bad it really was. In all other respects, it was a decent product. Apparently waveform synthesis is cheap and

Re: [Elecraft] XG3 Calibration from 10MHz Standard?

I have a Rigol DG1022A Arbitrary Waveform Function Generator that has a counter that can measure 1 Hz to 200 MHz at 200 mVpp to 5 Vpp. My GPSDO is within this range for 10 MHz output (5 Vpp knocked down 3 dB). Seems the XG3 and XG3 should work fine, eh? -- View this message in context:

Re: [Elecraft] Anti-static Pads

As I observed to Dick, n0ce: It's been a long, long road from the early low-impedance bipolar transistors to the modern ultra low power FETs. There was a time we worried about getting hurt: knocked on our keister by accidentally touching high voltage or burning our fingers on a hot vacuum tube.

Re: [Elecraft] K3S Upgrades

Geoff, I did not see a reply on the reflector, so I am offering my opinion. The order I would suggest is to add the KAT3 first, then the KPA3, and last the K144XV. That order suggestion is based on physical space, nothing electrical. It is easier to install the KAT3 before the KPA3 because

Re: [Elecraft] Audio Ground Loop Isolation XFRMR?

On Mon,9/19/2016 12:13 PM, Fred Jensen wrote: The K3 has isolation transformers on LINE IN/OUT. You don't need to add any more. And THOSE transformers are unnecessary -- all that is needed is proper BONDING. I assume you're using the term "ground-loop problems" in the generic [and

Re: [Elecraft] XG3 Calibration from 10MHz Standard?

Please realize that while the XG3 can be calibrated, it does not employ a temperature compensated or ovenized crystal oscillator as is found in higher end test equipment. The unit can be susceptible to temperature swings, holding it in your hand for several minutes, for example, will affect the

Re: [Elecraft] Audio Ground Loop Isolation XFRMR?

On Mon,9/19/2016 11:40 AM, Robin Moseley wrote: or open circuit one of the shields at one end. NO, NO, NO!These are UN-BALANCED circuits. That solution only works on BALANCED circuits. 73, Jim K9YC __ Elecraft mailing list Home:

Re: [Elecraft] Anti-static Pads

Hi all, While I can state that Ron's comment about the K2 is typically true, the static tolerance of thru-hole ICs and transistors is lower than it was back in 1998 or even 2006 (OK, I picked those years as a guess). Many DIP mounted devices are really SMD devices with DIP leads and can be

Re: [Elecraft] Anti-static Pads

Hi all, A point I failed to make in my comments below is that the goal of anti-static measures is to keep everything at the same potential (and not necessarily to 'ground things'). For instance, all my tools touch my anti-static mat before I use them, and when I remove a device which is

Re: [Elecraft] Anti-static Pads

I built K2 S/N 4398 the same as Ron, on a desktop with a Formica top in a room with a carpet. I kept all semiconductor parts in their anti-static bags and/or conductive foam, and touched ground before picking them up. My soldering station is static-safe. I tried not to shuffle my feet on

Re: [Elecraft] Anti-static Pads

Hello Ed: I don't have any experience with mat cleaners. Perhaps some of the other list members do. If your old mat did not come with a resistance value specified, I suggest replacing it. The Elecraft engineer testing a variety of mats found that the resistance of a mat without a spec was

Re: [Elecraft] Audio Ground Loop Isolation XFRMR?

The K3 has isolation transformers on LINE IN/OUT. You don't need to add any more. I assume you're using the term "ground-loop problems" in the generic [and somewhat archaic] sense. Make sure that you're not using the shield of any of the cables [RF or AF] as the bond between your

[Elecraft] Anti-static Pads

Ron – Your post (below) came at the right moment. I am about to begin building another K2 and wondered whether my anti-static pad, now more than five years and ten Elecraft kits old, needs some sort of cleaning to maintain its properties; and, if so, what to clean it with – or maybe to

Re: [Elecraft] Audio Ground Loop Isolation XFRMR?

or open circuit one of the shields at one end.. Robin G1MHU __ 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

[Elecraft] FS: Pig Knob (New in box)

Hi, I have a new in the box, never connected or even powered up, Pig Knob for sale.   This is new, never used, in it's original box.  Includes all cables and paper work. The first $85.00 gets it to your CONUS door, Paypal only. The little Googly Pig Eyes are also still with it, unused.  You

Re: [Elecraft] Audio Ground Loop Isolation XFRMR?

On Mon,9/19/2016 9:24 AM, dw wrote: I have a switch-box at my station which allows me to switch back and forth between the K3 audio and PC audio. This allows me to have SDR running on the PC and I can also listen to the K3 in one ear and the PC in the other. Any way, I've been experiencing

[Elecraft] Elecraft, Thank you for having a display at W9DXCC

I'll third that ,,, disappointed that I did not see a single device 5 KW amplifier ( hehe ) ...\ please no flamers... I know the drill. TNX Eric & Wayne for coming to Chicago T'was great. bill NY9H / 3 At 07:49 PM 9/18/2016, you wrote: I will add a second to that. Bob,

Re: [Elecraft] erratic vfo

Frustrating for sure! Does Elecraft support have any suggestions? Email: k3support- at - elecraft dot com. 73, Ron AC7AC -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Chris Meagher Sent: Monday, September 19, 2016 1:45 AM To:

Re: [Elecraft] K3 Erratic VFO behaviour, Switching bands and freq's

Ian: You make good points. That's why I was careful to say that static was not a serious issue as long as you do NOT touch anything inside the K3. If so, such as applying cleaner to the pins, anti-static protection is needed. My comments are based on over 50 years of working on sensitive solid

[Elecraft] Audio Ground Loop Isolation XFRMR?

I have a switch-box at my station which allows me to switch back and forth between the K3 audio and PC audio. This allows me to have SDR running on the PC and I can also listen to the K3 in one ear and the PC in the other. Any way, I've been experiencing ground-loop noise from my PC. I've tried

Re: [Elecraft] **WANTED Elecraft KX1****

I have a KX1, with tuner, 30 meters, key, bnc lamp dummy load, Pelican 1120 case, all manuals. Looks great and works as it should. Looked up shipping to Canada and medium priority mail box is almost $50. Asking $425 based on that shipping. 73 Tex ka5y -- View this message in context:

Re: [Elecraft] Noise when K-3 keyed

On Sun, 2016-09-18 at 22:19 -0400, Don Wilhelm wrote: > Louis, > > It goes away in TX TEST.  So I suspect it is an RF-in-the-shack > problem. > Try the K3 into a dummy load to verify that assumption. > > If it is OK on a dummy load, your best fix is in the antenna system -  > better baluns,

[Elecraft] OT - JT65 on 2m

Dear Elecrafters, After having a lot of DX and fun with WSJT-X on HF using JT65 I was about to look for the possibilities of activating my 2m transverter in my K3. WSJT-X suggests 144.489 but on the internet there are a lot of other frequencies listed among others 144.076, 144.116, 144.160 and

Re: [Elecraft] erratic vfo

Hi Chris How old is your K3 ? I built mine in 2008 (s/n 1397). It has all the "works" and I have recently upgraded it with all the new boards available. I have never experienced what you are suffering and I am running all of the latest firmware and a KPod. Barry VK2BJ On 19 September 2016

Re: [Elecraft] K3 Erratic VFO behaviour, Switching bands and freq's

Hello Pete A few months ago I had similar problem with my K3 (sn: 05845). I upgraded the FW from 05.29 to 05.38, tuning the vfo, the freq would jump, sometimes out of band. One occasion both vfo's read 300.000.00. The rig had worked fine on the old FW so I reverted back to FW 05.29. That

[Elecraft] erratic vfo

Hi Pete and the forum I have been having exactly the same problem. While rotating the VFO, it will suddenly jump to another frequency or band, usually this seems to be nearer the band edges. There is a relay click when there ought not to be one, then further on the 'jump' happens. I have been

Re: [Elecraft] K3 Erratic VFO behaviour, Switching bands and freq's

Ron wrote: > >Mark makes an excellent point but a special anti-static pad is not required >for a simple procedure like this. However, simply unplugging and replacing >the FP does not require touching anything inside the K3, so there's no >danger. > >If you need to touch the pins on the connectors