Re: [Elecraft] K3: DSP Bandwidth Limit

Jim, It is important to realize that the K3 bandwith is equal to the audio bandwidth. The K3 reports the audio bandwidth. A K3 with a 6 kHz filter is limited to a maximum of 3 kHz audio because an AM signal is double sideband and the IF bandwidth for the AM signal must be twice the audio

Re: [Elecraft] K3: DSP Bandwidth Limit

OK, I think I read something into Joe's post that wasn't really there, that's how I thought it worked and I I think Joe was referring to the DSB BW at the 15 kHz 2nd IF.  Enjoy the GC, we stayed in a cabin maybe 50 meters from the edge ... awesome! 73, Fred ["Skip"] K6DGW Sparks NV DM09dn

Re: [Elecraft] K3: DSP Bandwidth Limit

Joe, I think the confusion might come in with the typo -> A 5 KHz *audio* bandwidth would be equivalent to a 10 Hz RF (IF) Should be -> A 5 KHz *audio* bandwidth would be equivalent to a 10 KHz RF (IF) 73, Bill WE5P > > On Dec 13, 2019 at 15:31, Joe

Re: [Elecraft] K3: DSP Bandwidth Limit

> On Dec 13, 2019, at 12:30 PM, Joe Subich, W4TV wrote: > > A 5 KHz *audio* bandwidth would be equivalent to a 10 Hz RF (IF) > bandwidth. I expect you mean a 10 kHz RF bandwidth, not 10 Hz. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog)

Re: [Elecraft] K3: DSP Bandwidth Limit

Fred, The audio CODECs in the K3 have a 12 kHz sample rate. This puts the maximum audio bandwidth at 6 kHz. Practical limits of DSP filtering in the context of the K3 implementation limit audio to 4.5 kHz or so. Aliasing around the 12 kHz sample rate of the CODECs required that “brick wall”

Re: [Elecraft] K3: DSP Bandwidth Limit

On 2019-12-13 1:22 PM, Fred Jensen wrote: > Could you explain a little more? What's to explain? AM is a double sideband signal - equal width either side of the carrier with each sideband carrying the same audio information but inverted in frequency. A 5 KHz *audio* bandwidth would be

Re: [Elecraft] K3: DSP Bandwidth Limit

Could you explain a little more? 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 12/13/2019 6:19 AM, Joe Subich, W4TV wrote: Remember, the DSP display is audio.  5 KHz represents 10 Hz at RF (IF). __ Elecraft mailing list

Re: [Elecraft] K3: DSP Bandwidth Limit

On 2019-12-13 8:58 AM, Jim Stoneback via Elecraft wrote: Is there any way to expand the (receive) DSP maximum bandwidth beyond 5kHz in AM mode? No. It would be ineffective since the audio chain has a 4500 Hz "brickwall" (sharp cutoff) lowpass filter limiting the audio response (to remove

[Elecraft] K3: DSP Bandwidth Limit

Is there any way to expand the (receive) DSP maximum bandwidth beyond 5kHz in AM mode? I have the 13 kHz roofing filter installed. 73, Jim K4AXF K3 #4936 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft

Re: [Elecraft] K3 DSP firmware update 'Missing'

for VK9XG... 73 David G3WGN M6O Sent from my Samsung Galaxy smartphone. Original message From: Grant Youngman Date: 22/09/2018 15:07 (GMT+00:00) To: David Aslin G3WGN Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 DSP firmware update 'Missing' Since you are looking

Re: [Elecraft] K3 DSP firmware update 'Missing'

Since you are looking at the FTP site, just download all of the files from there to a local folder. Then browse to that local folder with Utility instead of having Utility do the download. Grant NQ5T K3 #2091 KX3 #8342 > On Sep 22, 2018, at 9:39 AM, Dave G3WGN M6O wrote: > > Update: on

Re: [Elecraft] K3 DSP firmware update 'Missing'

Update: on further examination when I 'Copy new files from Elecraft' in the utility, it responds with '2 files copied' then waits for the download. Clearly it must need to copy more than two files for MCU, FPF and DSP. I can see all the needed files on the Elecraft ftp site, but the utility is

[Elecraft] K3 DSP firmware update 'Missing'

Hi, hoping the Elecraft brains trust can help. I'm updating the firmware on my K3 in preparation for the forthcoming 6Gs DXpedition to VK9X. Current DSP firmware is 2.86; when I 'Copy new files from Elecraft' in the utility, I get the latest MCU and FPF releases, but both DSP are shown as

Re: [Elecraft] K3 DSP Old and New

Doug, I also have the older DSP board. I elected to add the Low Pass Filter add-on-board because I was not interested in the extended low frequency response. So the proper answer depends on your aspirations - the low pass filter does provide a definite advantage in high frequency 'hiss'.

[Elecraft] K3 DSP Old and New

9月23日 (週五) 8:20 AM 主題︰ [Elecraft] K3 DSP Old and New I have an older 2009 K3 without the updated DSP. What is your opinion? Is it worth the upgrade to the newer D version? Anyone done a comparison?    Doug K6JEY   __ Elecraft m

[Elecraft] K3 DSP Old and New

I have an older 2009 K3 without the updated DSP. What is your opinion? Is it worth the upgrade to the newer D version? Anyone done a comparison?    Doug K6JEY   __ Elecraft mailing list Home:

Re: [Elecraft] K3 DSP processor speed

Sent: Tuesday, November 10, 2015 5:20 AM To: 'jim'; 'Fred Townsend'; 'Robert Sands'; elecraft@mailman.qth.net Subject: RE: [Elecraft] K3 DSP processor speed Jim, Here's a non-KookAid question for you. Just like in school.. Show your work. You say that radio has better than the K3/K3S with la

Re: [Elecraft] K3 DSP processor speed

@mailman.qth.net Subject: Re: [Elecraft] K3 DSP processor speed Jer, Perceived audio is just that. Perception. And to the individual, it is *everything*. Op skill does come into play, no doubt. Types of noise come into play, no doubt. The fact there are only two settings on the Kenwood does

Re: [Elecraft] K3 DSP processor speed

d, and Patriotic. -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of jim Sent: Tuesday, November 10, 2015 11:23 AM To: ae...@carolinaheli.com; 'Fred Townsend'; 'Robert Sands'; elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 DSP processor speed Jer,

Re: [Elecraft] K3 DSP processor speed

ts > AE4PB, K3S - S.N. 010324 > http://www.qrz.com/db/AE4PB > An Amateur is - Considerate, Loyal, Progressive, Friendly, Balanced, and > Patriotic. > > -Original Message- > From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of jim > Sent: Tuesday, Nov

Re: [Elecraft] K3 DSP processor speed

Wow, I didn't think anyone coded in assembly language any longer. Live and learn! 73 de Jim - AD6CW On 11/9/2015 6:46 PM, Wayne Burdick wrote: The K3's DSP code is written in very efficient assembly language. It executes quickly, because it doesn't need the lengthy library-routine calls

Re: [Elecraft] K3 DSP processor speed

Topic has digressed to NR: Simple question. Is all this feedback on how good or how bad NR works about reception of CW (or does it apply to SSB?). Only time I really need NR is when local noise overwhelms normally strong SSB (e.g. signal is running S8-S9 and noise rises up to S8-S9. I find

Re: [Elecraft] K3 DSP processor speed

C, Fists > AE4PB, K3S - S.N. 010324 > http://www.qrz.com/db/AE4PB > An Amateur is - Considerate, Loyal, Progressive, Friendly, Balanced, and > Patriotic. > > -Original Message----- > From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of jim > Sent: Tuesda

Re: [Elecraft] K3 DSP processor speed

Everybody stop, I hit the send button to soon. I know what it stands for. Jim W6AIM -Original Message- From: jim [mailto:jbol...@outlook.com] Sent: Tuesday, November 10, 2015 11:01 AM To: 'Edward R Cole'; 'Elecraft@mailman.qth.net' Subject: RE: [Elecraft] K3 DSP processor speed What

Re: [Elecraft] K3 DSP processor speed

What is SSB an acronym for??? Jim W6AIM . -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Edward R Cole Sent: Tuesday, November 10, 2015 10:44 AM To: Elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 DSP processor speed Topic has digressed

Re: [Elecraft] K3 DSP processor speed

It seems to me that “drowning in Kool Aid” is no worse than what are little more than anecdotal comments about how one radio is better than another one in regards to noise reduction. Especially because essentially the same “leaky LMS” algorithm is used by most if not all of them. And it

Re: [Elecraft] K3 DSP processor speed

Folks, we closed this thread earlier today. 73, Eric /elecraft.com/ On 11/10/2015 12:06 PM, GRANT YOUNGMAN wrote: It seems to me that “drowning in Kool Aid” is no worse than what are little more than anecdotal comments about how one radio is better than another one in regards to noise

Re: [Elecraft] K3 DSP processor speed

, 2015 10:44 AM To: Elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 DSP processor speed Topic has digressed to NR: Simple question. Is all this feedback on how good or how bad NR works about reception of CW (or does it apply to SSB?). Only time I really need NR is when local noise overwhelms

Re: [Elecraft] K3 DSP processor speed

What on earth would cause you to make a statement like that? A large number of rigs still on the market have fundamental and inexcusably bad key clicks and phase noise that pollute the bands, not to mention the ones with wide front ends that pound the bejeezus out of the AGC from 10 KHz

Re: [Elecraft] K3 DSP processor speed

On Tue,11/10/2015 2:35 PM, Bob McGraw - K4TAX wrote: There are no bad radios currently on the market. Obviously you've never operated a contest with a neighbor running an FTDX5000, IC7600, IC706, or others in that class. All occupy a lot more than their fair share of CW bandwidth and TX lots

Re: [Elecraft] K3 DSP processor speed

There are no bad radios currently on the market. Some are better radios, but better is in the eyes {ears} of the beholder. However, those radios of yesteryear, as compared to the current breed of radios from Elecraft, Kenwood, Yaesu, ICOM, Flex and Tentec and ? are really in the back

Re: [Elecraft] K3 DSP processor speed

Guys - This thread is closed. Eric Moderator - really! /elecraft.com/ On 11/10/2015 3:00 PM, David Gilbert wrote: What on earth would cause you to make a statement like that? A large number of rigs still on the market have fundamental and inexcusably bad key clicks and phase noise that

Re: [Elecraft] K3 DSP processor speed

Watch it Wayne, you almost made me do the proverbial spew on the keyboard with that one HI HI!! OTOH, a ham friend of mine a long time ago briefly lived in a trailer park while he was going through some marital difficulties. He had his Swan 350 set up there. A next trailer neighbor of his

Re: [Elecraft] K3 DSP processor speed

, Loyal, Progressive, Friendly, Balanced, and Patriotic. -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of jim Sent: Monday, November 09, 2015 9:14 PM To: 'Fred Townsend'; 'Robert Sands'; elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 DSP processor

[Elecraft] K3 DSP processor speed

I was informed by an ICOM 7851 owner that the ICOM has DSP processors are 10 times as fast as the K3 and therefore has noise reducing advantage. Not that important to me but curious if this is meaningful and if there is consideration of chasing this performance spec by Elecraft and if not Why not?

Re: [Elecraft] K3 DSP processor speed

The IC-7851 consumes *200 Watts in RECEIVE mode!* The K3.About 12 watts. On Mon, Nov 9, 2015 at 9:46 PM, Wayne Burdick wrote: > The K3's DSP code is written in very efficient assembly language. It > executes quickly, because it doesn't need the lengthy library-routine

Re: [Elecraft] K3 DSP processor speed

craft-boun...@mailman.qth.net] On Behalf Of Fred Townsend Sent: Monday, November 9, 2015 4:46 PM To: 'Robert Sands'; elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 DSP processor speed Bob: There are many many reasons why this is an apples to watermelon comparison. Too many for discussion here. However tw

Re: [Elecraft] K3 DSP processor speed

The K3's DSP code is written in very efficient assembly language. It executes quickly, because it doesn't need the lengthy library-routine calls typical of the C or C++ code written for GHz-clock DSPs. The code is also extremely compact. The crystal oscillator frequency is not a direct

Re: [Elecraft] K3 DSP processor speed

Steve Ellington wrote: > The IC-7851 consumes *200 Watts in RECEIVE mode!* So it can dampen shaking due to earthquakes and nearby teen house parties. > The K3.About 12 watts. So you can run it from a solar panel after the aforementioned disasters. Wayne N6KR

Re: [Elecraft] K3 DSP processor speed

While I appreciate the input from Wayne on the K3's programming architecture (as well as the facts on the power consumption characteristics), the reality is that many of us have identified other rigs that have implemented NR in a way that produces results that are much more satisfactory. Comments

Re: [Elecraft] K3 DSP processor speed

"Steve Ellington" <steven...@gmail.com> Cc: "Elecraft Reflector" <elecraft@mailman.qth.net> Subject: Re: [Elecraft] K3 DSP processor speed Steve Ellington wrote: > The IC-7851 consumes *200 Watts in RECEIVE mode!* So it can dampen shaking due to earthquakes and

Re: [Elecraft] K3 DSP processor speed

e low cost Kenwood TS-480 . -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bill Sent: Monday, November 9, 2015 4:34 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 DSP processor speed Some how I just am not all that impresse

Re: [Elecraft] K3 DSP processor speed

Wayne, Thanks for the unedited answer with no bias. Jim W6AIM . -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Wayne Burdick Sent: Monday, November 9, 2015 6:46 PM To: Elecraft Reflector Subject: Re: [Elecraft] K3 DSP processor speed The K3

Re: [Elecraft] K3 DSP processor speed

; elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 DSP processor speed Bob: There are many many reasons why this is an apples to watermelon comparison. Too many for discussion here. However two thoughts. In general the faster the processor the 'more' chances of producing RFI. It could be Wayne and the

Re: [Elecraft] K3 DSP processor speed

ecraft@mailman.qth.net Sent: Monday, November 9, 2015 4:55 PM Subject: Re: [Elecraft] K3 DSP processor speed Maybe because Elecraft does not want to produce a rig that sells for $14,500? Tom - W4BQF -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On

Re: [Elecraft] K3 DSP processor speed

Some how I just am not all that impressed by those "fantastic" DSP numbers. What does impress me is the absolute quality of the received signals presented to my ears by the K3. In about 55 years, my K3 is the most satisfying receiver I have ever used - and I have had most of them along the

Re: [Elecraft] K3 DSP processor speed

9, 2015 1:32 PM To: elecraft@mailman.qth.net Subject: [Elecraft] K3 DSP processor speed I was informed by an ICOM 7851 owner that the ICOM has DSP processors are 10 times as fast as the K3 and therefore has noise reducing advantage. Not that important to me but curious if this is meaningful

Re: [Elecraft] K3 DSP processor speed

It reminds me of my computer overclocking days when bragging rights went to the guy who could run the processor at the highest clock without roasting throwing BSOD's or cooking the silicon. It's analogous to today's PC gamers who overclock video cards to get the very last frame per second on

Re: [Elecraft] K3 DSP processor speed

Maybe because Elecraft does not want to produce a rig that sells for $14,500? Tom - W4BQF -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Robert Sands Sent: Monday, November 9, 2015 4:32 PM To: elecraft@mailman.qth.net Subject: [Elecraft] K3 DSP

Re: [Elecraft] K3 DSP processor speed

According to the review in the November RSGB magazine (RadCom) it hosts three 32 bit floating point DSP units. Two clocked at 393MHz for the receivers and the transmitter an one clocked at 370MHz for the spectrum scope. Also two 24-bit DAC's. I never use NR so essentially I don't really care

[Elecraft] K3 DSP rev D board S/N's

Regarding the recent thread about the K3 DSP board, according to http://www.elecraft.com/K3/mods/dsp_rev_c_information.htm it says that beginning serial number 3626 +/- 10, K3s shipped rev D of the DSP board. Hope the info is useful to some. 73, Mike ab3ap

[Elecraft] K3 DSP and the Hamblaster

I posted a few time on this mailing list about problems with the K3 DSP. I also mentioned a DSP Project and engineer and me worked on several years ago called The Hamblaster. I also mentioned that I wrote a Windows based program that allowed me to control the Hamblaster. I decided to

Re: [Elecraft] K3 DSP BYPASS

I don't think it's possible. Some dsp functions are not available with AGC off. Sometimes it's quieter with AGC off and reduced rf gain but not always. After 3 years, the best way to reduce hiss for me is to reduce hi cut (on ssb) sometimes to 2.4,sometimes 2.1. I would think in a contest you

Re: [Elecraft] K3 DSP bypass

Can you say masking tape? I knew you could. On 3/3/2014 9:54 PM, WILLIS COOKE wrote: I don't think the LCD will work well after a good coating of Rustoleum! __ Elecraft mailing list Home:

Re: [Elecraft] K3 DSP bypass

. Taylor, WB6UUT Sent: Tuesday, March 04, 2014 10:47 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 DSP bypass Can you say masking tape? I knew you could. On 3/3/2014 9:54 PM, WILLIS COOKE wrote: I don't think the LCD will work well after a good coating of Rustoleum

[Elecraft] K3 DSP bypass

Can the DSP in the K3 be bypassed? In other words, can it be operated as a conventional superheterodyne receiver without any processing? Would be interesting to do A/B comparison testing. Years ago I had a Ten Tec Omni 6 Plus, a great radio except for the horrid DSP hiss. I always wished I

Re: [Elecraft] K3 DSP bypass

Last really quiet production rig I used was a TenTec Corsair - fully analog. I should have never sold it - best 160 rig I ever had. Dead quiet winter bands and signals would just jump out at you - sort of like a signal breaking squelch on FM. Bill W2BLC K-Line

Re: [Elecraft] K3 DSP bypass

Not without a big hardware modification. The detection (do we still call it that?) -- conversion to audio is done in the DSP. And a lot of other stuff. On 3/3/2014 5:32 PM, GDR wrote: Can the DSP in the K3 be bypassed? In other words, can it be operated as a conventional superheterodyne

Re: [Elecraft] K3 DSP bypass

Here is the latest 100% Analog Radio on the market today. http://www.hilberling-usa.com/ Even Rob Sherwood raves about it! BTW, don't worry about the price.  It's only Money :-) 73 Milverton. On Monday, March 3, 2014 8:17 PM, Vic Rosenthal K2VCO k2vco@gmail.com wrote: Not

[Elecraft] K3 DSP bypass

Good question Vic, do we still call it detection or is it more appropriately conversion? I thought at one time during all my button pushing on the last year fiddling with the K3 settings, I was sure I remember the LCD display reading DSP OFF but I could never get it to happen again. At the time

Re: [Elecraft] K3 DSP bypass

How is a radio with direct digital synthesis and DSP processing 100% analog? 73, Scott, N9AA On 3/3/14 9:28 PM, tnny...@yahoo.com wrote: Here is the latest 100% Analog Radio on the market today. http://www.hilberling-usa.com/ Even Rob Sherwood raves about it! BTW, don't worry about the

Re: [Elecraft] K3 DSP bypass

That's one of those items where if you have to ask the price,. you can't afford it. 73 de Ray K2ULR On Mar 3, 2014, at 9:28 PM, tnny...@yahoo.com wrote: Here is the latest 100% Analog Radio on the market today. http://www.hilberling-usa.com/ Even Rob Sherwood raves about it! BTW,

Re: [Elecraft] K3 DSP bypass

$18,000+! And for more than 4 times the price of a loaded K3, you get 4dB better close-spaced dynamic range. That is only $3K per dB. On the plus side, they do come in 4 colors, vs. the K3's one. I'm sure people will be lining up to buy them. 73, Scott, N9AA On 3/3/14 10:42 PM, Ray Sills

Re: [Elecraft] K3 DSP bypass

Maybe Elecraft will offer different color faceplates for the K3? Anyone like Pink?...or Purple?...or ? TIC folks.. Gary On 4 March 2014 13:50, Scott Manthe scott.man...@gmail.com wrote: $18,000+! And for more than 4 times the price of a loaded K3, you get 4dB better close-spaced

Re: [Elecraft] K3 DSP bypass

On 03/03/2014 08:55 PM, Gary Gregory wrote: Maybe Elecraft will offer different color faceplates for the K3? Hey, we're not appliance operators! What ever happened to homebrewing? Your local Ace Hardware has Rustoleum in dozens of designer colors. :=) Alan N1AL

Re: [Elecraft] K3 DSP bypass

Subject: Re: [Elecraft] K3 DSP bypass On 03/03/2014 08:55 PM, Gary Gregory wrote: Maybe Elecraft will offer different color faceplates for the K3? Hey, we're not appliance operators!  What ever happened to homebrewing?  Your local Ace Hardware has Rustoleum in dozens of designer colors

Re: [Elecraft] K3 DSP bypass

The LCD will work just fine, but the customer may not be able to see the icons and values. 73, Don W3FPR On 3/4/2014 12:54 AM, WILLIS COOKE wrote: I don't think the LCD will work well after a good coating of Rustoleum! Willis 'Cookie' Cooke, TDXS DX Chairman K5EWJ Trustee N5BPS, USS

Re: [Elecraft] K3 DSP bypass

The K3 is an SDR transceiver. That means that the filtering, modulation, and demodulation (as well as noise reduction and many other functions) is done in the digital domain. One cannot disable the DSP processing of the K3 without disabling the entire transceiver for both transmit and

[Elecraft] [K3] DSP board rev level

Is it possible to determine the rev code of the DSP board without removing it? 73, Mike NF4L __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post:

Re: [Elecraft] [K3] DSP board rev level

You only have to remove the front panel *assembly* to be able to see the label.. It cannot be seen with the K3 fully assembled. 73, Don W3FPR On 7/5/2013 8:34 AM, Mike Reublin wrote: Is it possible to determine the rev code of the DSP board without removing it? 73, Mike NF4L

[Elecraft] K3 DSP NR for SSB, settings you like ?

I know we all have our own unique noise environment but I am curious what settings others use for reducing the background noise on SSB. Not for really digging into a noise issue but for just reducing the background noise for comfortable listening. I have been playing around with the different

[Elecraft] K3 DSP NR for SSB, settings you like ?

@mailman.qth.net 傳送日期︰ 2012年11月8日 (週四) 9:33 AM 主題︰ [Elecraft] K3 DSP NR for SSB, settings you like ? I know we all have our own unique noise environment but I am curious what settings others use for reducing the background noise on SSB. Not for really digging into a noise issue but for just reducing

[Elecraft] K3: DSP NR for Data A mode?

Is it possible to implement Noise Reduction in the DSP for Data A mode? Or is it a really stupid idea? The PSK software I use -- cocoaModem for the Mac -- has a noise reduction mode which works reasonably well when it is receiving a broad spectrum signal -- 2 KHz or more. It does not work well

Re: [Elecraft] K3: DSP NR for Data A mode?

Have you tried using a narrower filter in the K3 or using the K3 NR? Amateur Radio Operator N5GE ARRL Lifetime Member QCWA Lifetime Member On Fri, 20 Jul 2012 09:03:20 -0700, Bill Frantz fra...@pwpconsult.com wrote: Is it possible to implement Noise Reduction in the DSP for Data A mode? Or is

Re: [Elecraft] K3: DSP NR for Data A mode?

Note that NR is not available in DATA A mode -- K3 manual p25: NR turns noise reduction on. It doesn’t apply to DATA or FM modes, or with AGC turned off. Ray identified why I would like the K3 NR to work in DATA A when he said, NR algorithms -need- a broad chunk of spectrum. If the DSP NR

Re: [Elecraft] K3: DSP NR for Data A mode?

Bill, I have not found 24 bit soundcards to be a requirement for data modes. 16 bit soundcards will do just fine. Yes, NR is not available in Data modes because it distorts the signal and would result in reduced copyability. The object is to produce as clean a signal as possible to the

[Elecraft] [K3] DSP noise remover?

MFJ makes something called the MFJ 1026 noise remover, that allegedly can remove or reduce QRM from a specific source by phase shifting and mixing the signals from your main antenna and an extra receive antenna. Details here: http://www.eham.net/reviews/detail/1205 I wonder if the K3 with the

Re: [Elecraft] [K3] DSP noise remover?

Regarding the MFJ-1026, it works quite well if your noise is coming basically from one direction. Bob K6UJ On Jan 20, 2012, at 4:47 PM, Thomas Horsten wrote: MFJ makes something called the MFJ 1026 noise remover, that allegedly can remove or reduce QRM from a specific source by phase

Re: [Elecraft] [K3] DSP noise remover?

It works quite well if you can put up a second antenna that receives the noise you are trying to eliminate. Directionality really has nothing to do with it. If you can receive the noise at an adequate enough level, the MFJ-1026 can be used to null it out by changing the phase of the undesired

[Elecraft] K3 dsp board upgrade for early radio

Hi Gents, I have an early K3 - serial # around 400. Do I need to swap the entire DSP board out for a Rev D board or is the little mod kit *K3DSPLPF *that is sold for $40 going to do it for me? -- Cheers, Nick NT1A __ Elecraft

Re: [Elecraft] K3 dsp board upgrade for early radio

Nick, The little K3DSPLPF will take care of the high frequency part of the spectrum just the same as the DSP Board swap, BUT, it will not extend the low frequency response. So, the answer depends on what you want to accomplish - if you want both the high and low frequency changes in your K3,

[Elecraft] K3 dsp board upgrade for early radio

@mailman.qth.net 傳送日期︰ 2011年12月5日 (週一) 10:20 PM 主題︰ Re: [Elecraft] K3 dsp board upgrade for early radio Nick, The little K3DSPLPF will take care of the high frequency part of the spectrum just the same as the DSP Board swap, BUT, it will not extend the low frequency response. So, the answer depends

Re: [Elecraft] K3 dsp board upgrade for early radio

Thank you so much Don. Your answer clarified everything about this upgrade for me. I will swap out the entire board. Cheers, Nick NT1A On 12/5/2011 9:20 AM, Don Wilhelm wrote: Nick, The little K3DSPLPF will take care of the high frequency part of the spectrum just the same as the DSP

[Elecraft] K3 DSP Upgrade Board Question

I just sent this message to Elecraft support, but wondered if anyone out there knows the answer or has experience: I received my DSP upgrade board (K3DSPUPGD) around 10/14/2011 and am just now installing it. My K3 is serial number 1206. Upon removing the original DSP board, I noted the board

[Elecraft] K3 DSP Upgrade Board Question

從︰ Phil Westover 492comm...@comcast.net 收件人︰ elecraft@mailman.qth.net 傳送日期︰ 2011年10月23日 (週日) 9:16 AM 主題︰ [Elecraft] K3 DSP Upgrade Board Question I just sent this message to Elecraft support, but wondered if anyone out there knows the answer or has experience: I

Re: [Elecraft] K3 DSP Upgrade Board Question

The easiest way to tell is that the new board has a little daughter-board with low-pass filter components on it. If both boards have them, you are already updated. If neither, then they sent you an old board. If one does and the other doesn't, install the one that does! On 10/22/2011 6:16

Re: [Elecraft] Elecraft K3 DSP upgrade

Holger, The DSP Upgrade is certainly possible for your K3 - whether that is a board exchange or the LPF which you add to the board. The question about price and shipping should be directed to sa...@elecraft.com for a complete answer. 73, Don W3FPR On 10/7/2011 1:00 AM, dl9hda wrote: Hello,

[Elecraft] Elecraft K3 DSP upgrade

K3 DSP upgrade Holger, The DSP Upgrade is certainly possible for your K3 - whether that is a board exchange or the LPF which you add to the board. The question about price and shipping should be directed to sa...@elecraft.com for a complete answer. 73, Don W3FPR On 10/7/2011 1:00 AM, dl9hda

Re: [Elecraft] Elecraft K3 DSP upgrade

. The DSP modification is definitely a must. NR before modification has lot of artifacts. TNX 73, Johnny VR2XMC 從︰ Don Wilhelm w3...@embarqmail.com 收件人︰ elecraft@mailman.qth.net 傳送日期︰ 2011年10月7日 (週五) 11:11 PM 主題︰ Re: [Elecraft] Elecraft K3 DSP upgrade

Re: [Elecraft] Elecraft K3 DSP upgrade

Holger, If you do the DSP board exchange, you do not have to be concerned about the level of your current board - you will receive the latest level DSP board in the exchange.. I believe the LPF can be added to any DSP board level. For other upgrades, consult the list at the Elecraft website to

[Elecraft] Elecraft K3 DSP upgrade

...@pt100.net 收件人︰ Johnny Siu vr2...@yahoo.com.hk 副本(CC)︰ elecraft@mailman.qth.net elecraft@mailman.qth.net 傳送日期︰ 2011年10月8日 (週六) 12:49 AM 主題︰ Re: [Elecraft] Elecraft K3 DSP upgrade Hi, but which Revision do I have? Revision C startet in may 2009. It is ref b or a And is the upgrade possible

Re: [Elecraft] Elecraft K3 DSP upgrade

elecraft@mailman.qth.net 傳送日期︰ 2011年10月8日 (週六) 12:49 AM 主題︰ Re: [Elecraft] Elecraft K3 DSP upgrade Hi, but which Revision do I have? Revision C startet in may 2009. It is ref b or a And is the upgrade possible? I'm little bit confused! Best 73s Holger, DL9HDA Von meinem

Re: [Elecraft] Elecraft K3 DSP upgrade

Holger, I would recommend all the upgrades. I cannot think of any that are mode specific. 73, Don W3FPR On 10/7/2011 10:26 PM, DL9HDA wrote: Dear Johnny, which modifications do you recommend? I do operations only in CW. __

[Elecraft] Elecraft K3 DSP upgrade

: [Elecraft] Elecraft K3 DSP upgrade Holger, I would recommend all the upgrades.  I cannot think of any that are mode specific. 73, Don W3FPR On 10/7/2011 10:26 PM, DL9HDA wrote: Dear Johnny, which modifications do you recommend? I do operations only in CW

[Elecraft] Elecraft K3 DSP upgrade

Hello, is the upgrade possible for an Elecraft K3 from may 2008? S/N is 827. What will be the price including shipping to germany? best 73s Holger - DL9HDA __ Elecraft mailing list Home:

Re: [Elecraft] K3 DSP Upgrade Correction

On Tue, Mar 22, 2011 at 10:49 PM, Don Wilhelm w3...@embarqmail.com wrote: ...The K3 is soundcard digital ready I'm so dumb that when I got my K3, I spent half a day fiddling with cables, jumpers etc. to configure my digital interface box. Then suddenly the light dawned! It was a happy

[Elecraft] K3 DSP Upgrade

Is it worth it? I have seen some people say yes and others that say no. What is involved with the swap out. (read too lazy to read manual) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help:

[Elecraft] K3 DSP Upgrade

寄件人﹕ Mike Fatchett W0MU w...@w0mu.com 收件人﹕ elecraft@mailman.qth.net 傳送日期﹕ 2011/3/23 (三) 9:53:50 AM 主題： [Elecraft] K3 DSP Upgrade Is it worth it?  I have seen some people say yes and others that say no. What is involved with the swap out.  (read too lazy to read manual

Re: [Elecraft] K3 DSP Upgrade

Hi Mike, If you have an appreciation for the elimination of high end artifacts and overall smother sound, the answer is clearly, 'Yes, it is worth it.' Prior to the upgrade, I kept the top edge of the filter about 2.35 kHz as that was about all I could take. Now I have no problem running the

Re: [Elecraft] K3 DSP Upgrade Correction

I use my system with Line with Speaker Out - should read, 'I use my system with Speaker out through a matching network to line in on my computer sound card.' The matching network is a $20 item from an auto sound store and is used to cut speaker level down to line level. 73, Dick - KA5KKT

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