[Elecraft] WTB 200 Hz filter for 2nd RX

Seriously looking for 200Hz 5pole filter with the offsetas close as possible to -0.9 > From: g...@ka1j.com > To: elecraft@mailman.qth.net > Date: Fri, 11 Mar 2016 23:42:07 -0500 > Subject: [Elecraft] WTB 400 Hz filter for K3 > > I have two 500 Hz filters for the K3, I'd like to try the 400 Hz

Re: [Elecraft] 10 MHz external reference - GPSDO

Why would I need the TCXO-3 instead of the TCXO-1 when using the K3EXREF if the accuracy and stability is provided by the EXREF? Am I overlooking something here? Tnx & 73, Olli - DH8BQA Contest, DX & radio projects: http://www.dh8bqa.de Am 11.03.2016 um 22:30 schrieb Edward R Cole: First

[Elecraft] WTB 400 Hz filter for K3

I have two 500 Hz filters for the K3, I'd like to try the 400 Hz filters. If you have one or two 400 Hz filter(s) you want to sell or would like to trade for 500 Hz, please contact me off list. 73, Gary KA1J __ Elecraft mailing list

Re: [Elecraft] Noise Reduction (NR)

Jimmy, If all noise were equal, there would be an easy answer (and no need for the various settings). But the truth of the matter is that there are a huge variety of different noise sources - rise time, duration, settling time, amplitude, etc. You will just have to experiment to find the best

[Elecraft] Noise Reduction (NR)

I hope this isn’t a worn out question. I’d like to ask the group whether there is a favorite setting for NR? I know there are different conditions that might require different settings, but does anyone have a default setting? Jimmy, WA4ILO

Re: [Elecraft] K3 Feature Request

Did you try turning the VOX Delay down to zero? Worked for me when running remotely! 73 Dwight NS9I On 3/11/2016 1:12 PM, charlie carroll wrote: I use the internal K3 message memories when operating as DX in an ssb contest. One of the biggest problem I face is the delay both in initiating the

Re: [Elecraft] 10 MHz external reference - GPSDO

Joe and all interested in the EXREF: OK ... but most will not measure the 49.380 TCXO directly*.*though REF CAL displays this. What I think most want to know is how accurate their operating frequency will be. I performed rigorous measurements as beta tester of the EXREF (unfortunately

Re: [Elecraft] OT noise on 17m

Here's noise from my neighbors new washing machine (Samsung).  http://www.slickpic.com/users/GeneGabry/albums/N9TFHamStationPhotos/?wallpaper#11792105 Repeats about every 17Khz. From about 20Mhz-22.5Mhz. Most of all the RF pollution in my neighborhood generates garbage on 15m. Have not seen

Re: [Elecraft] Win4K3

Gary, If you are using a KX3 rather than a K3 or K3S, you need only the sound card. The KX3 gives you baseband I data on a connector on the left side of the radio. 73, Barry K3NDM -- Original Message -- From: "Gary Gregory" To: "Elecraft List"

[Elecraft] Win4K3

Just tried Tom's latest software. HA, I didn't read the documentation fully obviously and discovered I could not use the panadapter display without having LP Pan or a Softrock or a P3. I have a sound card and incorrectly assumed I was good t go, dear oh dear, must be getting older by the day at a

[Elecraft] New release of Win4K3Suite: The ultimate control for your K3, K3S and KX3

Hello, The latest release of Win4K3Suite is now available. In this release are new graphical S-Meters for the K3, K3S and KX3. In addition, this release now offers cross hairs for the spectrum scope. Win4K3Suite is a comprehensive control program for the Elecraft 3 series products and supports

Re: [Elecraft] 10 MHz external reference - GPSDO

Note that 2 Hz refers only to the reference oscillator which is close to 49,380 kHz. That is about .04 ppm, or about 10 times greater than the specification for the high stability (optional) TCXO. The frequency accuracy at HF will also be .04 ppm - at 10 MHz that is 0.4 Hz, at 20 MHzit is

Re: [Elecraft] 10 MHz external reference - GPSDO

I am not arguing about that calculation Joe, it's proof that you don't need GPSDO accuracy as if will be several orders of magnitude better than that. 73 from David GM4JJJ > On 11 Mar 2016, at 18:25, Joe Subich, W4TV wrote: > > > > While locked to the external source, the

Re: [Elecraft] OT noise on 17m

Coincidental I think hi. Yes Aurora on 144 MHz here this afternoon and the magnetometers showing the impact too. 73 from David GM4JJJ > On 11 Mar 2016, at 19:01, KENT TRIMBLE wrote: > > Robert . . . > > *Space Weather News for March 11, >

Re: [Elecraft] 10 MHz external reference - GPSDO

Hi Dick, There may be a little misunderstanding as to what "locked" means in this implementation. It isn't the same as phase locking an oscillator to a high standard reference that's true. On the other hand it is more than good enough for almost any HF application, and it has the huge

Re: [Elecraft] 10 MHz external reference - GPSDO

Thank you David. That article is very good and answered a lot of questions for me. 73 John AF6QO On 3/11/2016 8:03 AM, David Anderson wrote: You may want to have a look at this for some background on real world frequency stability, and remember that the K3 isn't phase locked to the external

Re: [Elecraft] OT noise on 17m

Robert . . . *Space Weather News for March 11, 2016*http://spaceweather.com *

Re: [Elecraft] OT noise on 17m

The stuff I have run into that is in the 16 to 18 khz range includes furnace /air conditioner motor controls and washing machines. Of course those are intermittent which is also a clue- although there are some furnace/A/C blowers that stay on at low speed all the time for circulation. If

Re: [Elecraft] K3 Feature Request

I am curious what you are you using the memories for? I really never noticed any delay but during 300/hour rates I think it is way easier to just to speak. John KK9A charlie carroll k1xx at k1xx.com Fri Mar 11 13:12:02 EST 2016 I use the internal K3 message memories when operating as DX in an

Re: [Elecraft] 10 MHz external reference - GPSDO

> While locked to the external source, the K3’s reference > oscillator frequency is maintained within 2 Hz. The K3's reference oscillator is 49.380 MHz (+/-) not 10 MHz. The K3EXTREF uses the external 10 MHz signal to gate a counter which counts the reference. That count is then used to

Re: [Elecraft] 10 MHz external reference - GPSDO

Dick, I found the reference to that figure I quoted, it is in the K3EXREF manual: The K3EXREF option locks the K3's reference oscillator frequency to an external 10 MHz source by automatically controlling the REF CAL function. While locked to the external source, the K3’s reference oscillator

[Elecraft] K3 Feature Request

I use the internal K3 message memories when operating as DX in an ssb contest. One of the biggest problem I face is the delay both in initiating the message (from an external application) and the delay between the end of the message and back in the receive mode. From experiments, both of

Re: [Elecraft] [K3/0] Remoterig sidetone way too loud

Fred, Go into the RRC's web menus and click on "keyer settings", then go to "side tone" and adjust the db down to an acceptable level. 73, Mitch Mitch Wolfson DJØQN / K7DX 10285 Boca Cir, Naples, FL 34109 Skype: mitchwo USA: Home:+1-239-221-9600 - Mobile:+1-424-288-9171 Germany: Home:+49 89

Re: [Elecraft] 10 MHz external reference - GPSDO

There was a thread about this recently (last few days). The instructions for the K3 give the spec as up to plus and minus 2Hz at 10 MHz. 73 from David GM4JJJ > On 11 Mar 2016, at 16:55, Richard W. Solomon wrote: > > I am a tad confused over this issue. Perhaps I need to

Re: [Elecraft] 10 MHz external reference - GPSDO

Hi, in case of such amount of bucks is planned to be spent for "ready to go" unit then Leo Bodnar is the very good choice but I preffer this "Low Jitter / Low Phase Noise" model:

Re: [Elecraft] [K3/0] Remoterig sidetone way too loud

Hi Fred, Change your RRC Control setting under Keyer settings Side tone -db [50-0]: Set it to more reasonable value, 0 is the loudest, value is in "- db" :-) Set it to 45 or 50 and you must see the difference Hope it helps 73 Robert, S57AW On Fri, Mar 11, 2016 at 5:27 PM, Cady, Fred

Re: [Elecraft] 10 MHz external reference - GPSDO

I am a tad confused over this issue. Perhaps I need to read up on how Elecraft controls frequency. My understanding on a "Locked" frequency would infer that the result would be a LOT closer than 2 Hz @ 10 MHz. Is there a detailed description of the process somewhere that I could read ? 73,

Re: [Elecraft] OT noise on 17m

Yet another example of a switch-mode power supply. Here's a preliminary version of k9yc.com/KillingReceiveNoise.pdf that might help. 73, Jim K9YC On Fri,3/11/2016 6:41 AM, Robert G Strickland wrote: Can someone help me understand the "noise" on 17m - and elsewhere - right now? It repeats

[Elecraft] [K3/0] Remoterig sidetone way too loud

In preparation for a trip I have the Remoterig boxes and a K3/0 Mini and K3 working fine. Problem is the sidetone is way too loud. The K3's monitor level is 0 and the sidetone configuration in the control Remoterig is also 0 dB. Anybody have any ideas? Cheers, 73, Fred KE7X

Re: [Elecraft] OT noise on 17m

Bob, Most probably a switched mode power supply somewhere locally, almost everything we see repeated at regular frequency intervals like that are harmonics of SMPS. Often up to VHF unfortunately :-( Have you tried switching off the house breaker and listening on batteries to be sure it isn't

Re: [Elecraft] OT noise on 17m

Hi, None of it here in Camillus (a suburb west of Syracuse). AB2TC - Knut -- View this message in context: http://elecraft.365791.n2.nabble.com/OT-noise-on-17m-tp7615093p7615096.html Sent from the Elecraft mailing list archive at Nabble.com.

Re: [Elecraft] 10 MHz external reference - GPSDO

You may want to have a look at this for some background on real world frequency stability, and remember that the K3 isn't phase locked to the external reference and is only going to be within 2Hz. https://www.febo.com/pages/stability/ 73 from David GM4JJJ >

Re: [Elecraft] 10 MHz external reference - GPSDO

Hi Gary, Because the K3 only -frequency- locks the frequency to within about 2Hz you won't notice any difference between them. Similarly because the K3 TCXO isn't -phase- locked to the external reference any phase noise on the reference won't affect low phase noise of the synthesiser in the

[Elecraft] OT noise on 17m

Can someone help me understand the "noise" on 17m - and elsewhere - right now? It repeats every 17kc, very strong. Perhaps some sort of over the horizon radar? Is it general or just something in my neighborhood? Thanks much. ...robert -- Robert G Strickland, PhD ABPH - KE2WY

[Elecraft] K3 For Sale Mint

Elecraft K3/100 #7504, which includes all factory upgrades. This is a good basic K3 that won't take much to Option up. K3SYN3AUPG newest Synthesizer option installed. This significantly improves receiver performance. KXV3A Receive ANT IF out and XVRTR Interface board. KIO3 I/O board

[Elecraft] For Sale: K3/100 w/opttions

Selling my Elecraft K3/100 radio. Original owner, radio has always been operated in non-smoking environment, never portable or mobile. Fully functional, clean, great shape; recently received K3s and this K3 is no longer in use. Serial number is #250 and radio has all updates and mods done by

Re: [Elecraft] 10 MHz external reference - GPSDO

I appreciate the replies to my question about sourcing a 10 MHz external reference for my K3s. I didn't realize I needed more than the K3EXREF to gain this accuracy and thanks to these replies, I now better understand what will and what will not work. While I would prefer to be able to buy a