[Elecraft] KAF2/DSP swap in UK

2021-02-16 Thread Ian Maude
Anyone in the UK fancy swapping your KAF2 for my DSP board? I am focussing my K2 on CW and the KAF2 would be better for me. The board is fully built and functioning. 73 Ian __ Elecraft mailing list Home:

[Elecraft] KAF2 wanted

2020-08-10 Thread barry halterman
Any surplus KAF2 audio filters anyone would want to part with, built or unbuilt? Barry __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post:

[Elecraft] ***Wanted*** Elecraft KAF2 Audio Filter

2017-09-04 Thread Enzo Greco
Hi Guys, Looking for a Completely assembled and operational Elecraft KAF2 Audio Filter for my Elecraft k2 Price shipped ***PayPal*** Trade??? I have a Icom FL 53a 250hz cw filter that I can trade. Tnx es 73 de ve3vtg __ Elecraft

Re: [Elecraft] KAF2 faulty

2014-12-15 Thread Dave Sergeant
And to confirm that replacing U4 78L06 got the KAF2 working again. A mystery why it failed though... 73 Dave G3YMC On 8 Dec 2014 at 10:56, Dave Sergeant wrote: Further investigation shows the output of U4 78L06 regulator to be down to 1V. So it appears the 78L06 has failed and once I have

Re: [Elecraft] KAF2 faulty

2014-12-08 Thread Dave Sergeant
Further investigation shows the output of U4 78L06 regulator to be down to 1V. So it appears the 78L06 has failed and once I have found one I will change it. Thanks for the help. 73 Dave G3YMC On 6 Dec 2014 at 15:57, Dave Sergeant wrote: My KAF2 has been working fine in my K2 for some

[Elecraft] KAF2 faulty

2014-12-06 Thread Dave Sergeant
My KAF2 has been working fine in my K2 for some years, not that I actually use it that much. Today I came into the shack to find no audio coming out of the K2 and when I tried to change the AFIL settings it said 'not installed'. I cannot change the RTC menu settings either. I have moved S1 on

[Elecraft] For Sale - Elecraft KAF2 Audio Filter

2013-11-11 Thread L. T. Stem
For Sale - Elecraft KAF2 Audio Filter Completely assembled and operational. This unit is in excess to my needs. Less than six months on the battery. The male-female standoff  is included, but J1 and J2, the 3 and 5 pin female connectors for the K2 Control Board are not. These are available

[Elecraft] KAF2 versus AF1 versus APF

2013-10-26 Thread Bill W4ZV
I really miss the K3's APF in my K2. I previously tried a KAF2 but found it to be of marginal help. Has anyone found the AF1 to be as useful as APF? Does anyone have an AF1 they no longer need? I'd love to find someone close to Charlotte NC that might have one I could try before buying. 73,

[Elecraft] KAF2 filter mod experience ?

2013-10-25 Thread Steve Kavanagh
I just received a KAF2 audio filter kit for my K2 and I am considering a few mods when I build it, to increase the bandwidth somewhat, and to increase the gain.  My use of the K2 is mostly for VHF weak signal work with transverters, often outdoors with lots of background noise (surf, crickets

Re: [Elecraft] Kaf2 anti ringing mod by KI6WX

2012-05-20 Thread Bill W4ZV
William Schmidt wrote I have seen mention of an anti ringing modification for the kaf2 that was published several years ago by ki6wx. Has anyone done this mod or know where I can find the details? The link often mentioned no longer works. Thanks, Bill WV1N I just searched for this

[Elecraft] KAF2 found - thanks Bill

2012-05-20 Thread xraying
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Re: [Elecraft] KAF2 or KDSP2 for K2?

2012-05-03 Thread K1FFX
For my operating style (DX-ing, contesting that serious contesters would consider casual, mostly CW), the filtering capabilities of the basic K2 are way more than adequate. Using the N-GEN + Spectrogram procedure for filter setup works extremely well and I almost never found myself wishing for

Re: [Elecraft] KAF2 or KDSP2 for K2?

2012-05-03 Thread John
Thanks to everyone for the comments and thoughts. I'll start with the bare K2 (I really don't have a choice at the moment) and see how it goes. Later I will refer to your comments again in the archives for the next step. 73 John, kx4o On 5/2/12 8:45 AM, Mike Harris wrote: In my opinion the

[Elecraft] KAF2 or KDSP2 for K2?

2012-05-03 Thread Johnny Siu
.  TNX 73, Johnny VR2XMC 寄件人︰ John k...@hamradio.me 收件人︰ elecraft@mailman.qth.net 傳送日期︰ 2012年05月3日 (週四) 8:24 AM 主題︰ Re: [Elecraft] KAF2 or KDSP2 for K2? Thanks to everyone for the comments and thoughts. I'll start with the bare K2 (I really don't have a choice at the moment) and see how

Re: [Elecraft] KAF2 or KDSP2 for K2?

2012-05-03 Thread Andrew Moore
For most CW work, the K2 is fine without either, in my experience. I got the KAF2 to give me an extra edge in tough conditions, QRP, etc. but most of the time I just use XFIL1-4. That's not to say the KAF2 isn't useful in some conditions; I still love having it. --Andrew, NV1B .. On Tue, May

Re: [Elecraft] KAF2 or KDSP2 for K2?

2012-05-03 Thread Wayne Conrad
On 05/01/12 09:26, Stephen Roberts wrote: Can any of you folks tell me the real life difference between these two options and whether or not either one of them is worth the expense? If you live in the city, I wonder if you might prefer either the KDSP2 or the KNB2 over the KAF2. I live on a

[Elecraft] Kaf2 anti ringing mod

2012-05-03 Thread William Schmidt
I have seen mention of an anti ringing modification for the kaf2 that was published several years ago by ki6wx. Has anyone done this mod or know where I can find the details? The link often mentioned no longer works. Thanks, Bill WV1N

Re: [Elecraft] KAF2 or KDSP2 for K2?

2012-05-02 Thread Guy Olinger K2AV
Have to vote for Don's article on his web page. Did it that way and got the splendid results right off, first time. Huge help. Many thanks, Don. Oh and probably that is why I saw such a difference adding the DSP. Got maximum results to start with. I wasn't comparing the K2 after DSP to the

Re: [Elecraft] KAF2 or KDSP2 for K2?

2012-05-02 Thread Bill W4ZV
John Huggins, kx4o wrote One question I have about the choice between the KAF2 and KDSP2 is what about having neither. How would one describe the receiver/filter capabilities of the bare K2? John neither is a valid response for some situations...it all depends on your operating modes.

[Elecraft] KAF2 or KDSP2 for K2?

2012-05-02 Thread Curt
I operate mostly CW using a K2/10 with neither option, can't imagine that these would provide improved capability worth the added cost/complexity. Had considered the KAF2 before constructing the K2 but after completion and operation with the basic rig, decided to install a KSB2 instead.

Re: [Elecraft] KAF2 or KDSP2 for K2?

2012-05-02 Thread Mike Harris
In my opinion the KAF2 is essential. The always in-line low pass filter significantly reduces the high frequency audio hiss and makes SSB in particular much nicer to listen to. Assuming that your hearing extends above 3kHz. Note that there is a daughter board add on for earlier versions of

[Elecraft] KAF2 or KDSP2 for K2?

2012-05-01 Thread Stephen Roberts
Well going from a rather ancient Ten Tec to a K2 has been a real treat for sure, and as most of us can't seem to be able to leave anything well enough alone, I was thinking about possible options I can add without breaking the bank. Can any of you folks tell me the real life difference between

Re: [Elecraft] KAF2 or KDSP2 for K2?

2012-05-01 Thread David Pratt
Just my opinion having used both, Steve, but if you are primarily a CW operator I think you would be better off with the KAF2. 73 DE David G4DMP In a recent message, Stephen Roberts steve...@shoreham.net writes Well going from a rather ancient Ten Tec to a K2 has been a real treat for sure, and

Re: [Elecraft] KAF2 or KDSP2 for K2?

2012-05-01 Thread Andrew Moore
Steve - situation here was much the same - went from older Ten-Tec to a K2, do CW only, and wrestled with the KAF2 / KDSP2 choice, spent lots of time with KAF2 and some time evaluating KDSP2, even in side by side tests (two rigs). I have some details of the experience which I think are only in

Re: [Elecraft] KAF2 or KDSP2 for K2?

2012-05-01 Thread Guy Olinger K2AV
For serious contest use of the K2 on 160, I found that the extra skirt depth afforded by the DSP was extremely useful when running as opposed to search and pounce. On the other hand the easy rolloff of audio off the center frequency was useful. Like some others what I really wanted was BOTH.

Re: [Elecraft] KAF2 or KDSP2 for K2?

2012-05-01 Thread Arie Kleingeld PA3A
My K2 had the DSP. I programmed the DSP in a way that it tracked the IF filter settings. I had that both in CW (4 settings) and SSB. This way the DSP worked great as a combo with the IF filtering. More or less as in the K3. The DSP auto notch worked reasonable well. Never got the NR

Re: [Elecraft] KAF2 or KDSP2 for K2?

2012-05-01 Thread Dale Putnam
And I too have found many applications/times that would be nice to have both.In fact, I have an outboard unit that I am going to make work so I can have two in one... well.. sorta. that takes care of the digi/analog.. now how to do the analog/digi? --... ..--- Dale - WC7S in Wy

Re: [Elecraft] KAF2 or KDSP2 for K2?

2012-05-01 Thread John
One question I have about the choice between the KAF2 and KDSP2 is what about having neither. How would one describe the receiver/filter capabilities of the bare K2? Thanks. John, kx4o On 5/1/12 1:29 PM, Guy Olinger K2AV wrote: For serious contest use of the K2 on 160, I found that the extra

Re: [Elecraft] KAF2 or KDSP2 for K2?

2012-05-01 Thread Guy Olinger K2AV
Bluntly, as clever as the CW filter scheme was for both cost and effectiveness, the DSP for me really put the finishing touches on the performance. But that is a contesting analysis. No contesting, maybe I don't care. I have the four CW widths and I have the DSP filters set to exactly match the

Re: [Elecraft] KAF2 or KDSP2 for K2?

2012-05-01 Thread Don Wilhelm
John, The IF filter response of the K2 filter can be quite good by itself, but cascaded filters are better, particularly the DSP straight sided filter responses. To optimize the IF filters, I would encourage all to use Spectrogram (or something equal) and a wideand noise generator ( or

[Elecraft] KAF2 wanted

2012-01-01 Thread Marc Tinkler
Dear All HNY.. Does anyone have a KAF2 surplus to requirements? Replies off list directly to me please. Thanks... 73 Marc G0AZS __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help:

[Elecraft] KAF2

2011-12-25 Thread Robert Kalkwarf
Hi, I have an extra KAF2. Best Offer or Trade for something Elecraft. 73 Bob w7wo offline b...@kalkwarf.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post:

[Elecraft] KAF2 completed!

2011-05-14 Thread Keith Hamilton
Just completed the KAF2 Audio Filter for my K2! Wow thats a nice addition to the radio! Keith Hamilton, W8GX Youngstown, OH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help:

Re: [Elecraft] KAF2/KDSP2 impressions

2011-02-14 Thread Andrew Moore
N5BCN If you get a chance, do you mind emailing me your impressions of the KAF2 vs the KDSP2? I'm interested in buying one or the other, and hoped to get the opinion of someone who has listened to both. I've been going though this very exercise over the last several months, including about an

[Elecraft] KAF2/KDSP2 impressions

2011-02-13 Thread n5bcn
Hi, If you get a chance, do you mind emailing me your impressions of the KAF2 vs the KDSP2? I'm interested in buying one or the other, and hoped to get the opinion of someone who has listened to both. Thanks, N5BCN, Brian __

Re: [Elecraft] KAF2 ( built ) to trade for other k2 parts

2010-08-28 Thread Ken Chandler
. Knocks out a lot of hi and makes both CW and SSB easier to listen to. Regards, Mike VP8NO - Original Message - From: Paul Locker pmlo...@yahoo.com To: elecraft@mailman.qth.net Sent: Friday, August 27, 2010 12:53 PM Subject: [Elecraft] KAF2 ( built ) to trade for other k2

[Elecraft] KAF2 ( built ) to trade for other k2 parts

2010-08-27 Thread Paul Locker
All, I recently got a used k2 with an assembled kaf2. The kaf2 is not in the k2, but is assembled. I doubt I will be using the kaf2 and thus it's just sitting. Does anyone need or want a kaf2? I'm looking for any other parts pieces for a k2. Paul K4PML Don't forget to take the right

Re: [Elecraft] KAF2 ( built ) to trade for other k2 parts

2010-08-27 Thread Mike Harris
@mailman.qth.net Sent: Friday, August 27, 2010 12:53 PM Subject: [Elecraft] KAF2 ( built ) to trade for other k2 parts All, I recently got a used k2 with an assembled kaf2. The kaf2 is not in the k2, but is assembled. I doubt I will be using the kaf2 and thus it's just sitting. Does anyone need

Re: [Elecraft] KAF2 / KDSP2 (was : K2 noise)

2010-02-04 Thread Bill Johnson
, 4 Feb 2010 13:50:04 +0800 From: vr2...@yahoo.com.hk Subject: [Elecraft] KAF2 / KDSP2 (was : K2 noise) To: k9...@live.com; gille...@verizon.net CC: elecraft@mailman.qth.net Hello Bill, To my knowledge, K2 can either use KAF2 or KDSP2 but not both at a time. Did you do any modification

[Elecraft] KAF2 / KDSP2 (was : K2 noise)

2010-02-03 Thread Johnny Siu
Hello Bill, To my knowledge, K2 can either use KAF2 or KDSP2 but not both at a time.  Did you do any modification to K2 so that both units can be used at the same time? 73 Johnny Siu 寄件人﹕ Bill Johnson k9...@live.com 收件人﹕ gille...@verizon.net;

[Elecraft] KAF2 Built and tested FS

2009-12-21 Thread Bill K9YEQ
I have a built and tested KAf2 that was removed for the DSP filter. Will sell with included shipping for 65$. 73, Bill K9YEQ K2 #35; KX1 #35; K3 #1744; mini mods ATS-3B __ Elecraft mailing list Home:

[Elecraft] KAF2 filter for sale

2009-10-08 Thread mark roz
I have like new KAF2 audio filter for sale. $55 __ 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:

[Elecraft] KAF2?

2009-09-28 Thread William McFadden
Does anyone have a KAF2 audio filter module that's surplus to their needs? Tnx, es 73 Eric -- W. Eric McFadden Athens, Ohio http://home.frognet.net/~mcfadden/wd8rif/radio.htm http://McFaddenPhoto.com __ Elecraft mailing list

[Elecraft] KAF2 cylindrical crystal I got two.

2009-08-28 Thread Ivin Flint
I am confused on the X1 Crystal, cylindrical 32.768 crystal. I have two. One is labeled S573 and the other is labeled S793. I don't think there are supposed to be two and I am not familiar with these. I gues the 793 is closest to the 32.768 but some advice would be nice or am I overlooking

Re: [Elecraft] KAF2 cylindrical crystal I got two.

2009-08-28 Thread Don Wilhelm
Ivan, I don't know if there is a significant difference between the 2 crystals or not, but I suspect that either will work. The crystal is only for the Real Time Clock. Put one crystal in and keep tabs on the time display for a few days. If it is off drastically, try the other crystal. If

[Elecraft] KAF2 Sold!

2008-11-08 Thread Ron McCurdy
___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help:

[Elecraft] KAF2 Built Tested

2008-11-06 Thread Ron McCurdy
For sale.yeah, I bought it AND the DSP.and it's built and tested and worked great. $65 mailed to the continental US. Email me off list @ [EMAIL PROTECTED] Ron, KE5QDA ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a

[Elecraft] KAF2

2008-07-22 Thread Ed
This is likely just operator error but after setting the date I am not able to set my RTC time. I am following the steps as outlined in the booklet but the time does change. Any ideas? Ed - AD7GR ___ Elecraft mailing list Post to:

[Elecraft] KAF2-Assembly questions

2008-03-15 Thread Fred Jensen
I'm building the KAF2 Audio Filter. Two questions for whoever knows: 1. I mounted the two trimmer pots on the top side of the board even though their outline is on the bottom. Hope that's right, it didn't make sense to have an adjustable component on the bottom. 2. I'm about to mount the

Re: [Elecraft] KAF2-Assembly questions

2008-03-15 Thread Mike S
At 05:30 PM 3/15/2008, Fred Jensen wrote... I'm building the KAF2 Audio Filter. Two questions for whoever knows: There's a good picture on the Elecraft site which should answer your concerns: http://www.elecraft.com/kaf2/kaf2_top.jpg ___ Elecraft

Re: [Elecraft] KAF2-Assembly questions

2008-03-15 Thread Fred Jensen
Andrew Moore wrote: Reference: http://www.elecraft.com/kaf2/kaf2_side.jpg Thanks Andrew. As has happened with every kit I've built, I got the sides of the board mixed up, the picture made that clear. It seems that after I get components on each side and they look sort of similarly

Re: [Elecraft] KAF2-Assembly questions

2008-03-15 Thread Robert Tellefsen
Be sure you put the boards in the K3 sunny side up, Fred :-) 73, Bob N6WG - Original Message - From: Fred Jensen [EMAIL PROTECTED] To: Elecraft Reflector elecraft@mailman.qth.net Sent: Saturday, March 15, 2008 2:52 PM Subject: Re: [Elecraft] KAF2-Assembly questions Andrew Moore wrote

[Elecraft] KAF2 sold

2007-06-02 Thread w6jd
The KAF2 has been sold. Doug W6JD ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help:

[Elecraft] Kaf2 for the K2 for sale

2007-05-30 Thread Scott McDowell
Hello I was given both a KDSP2 and the KAF2 for my birthday by the xyl. Since I can't use both in my K2, I have deicided to sell the KAF2. It is still in the un-opened package, and will ship it for $65.00 to the USA only. If interested contact me at ( [EMAIL PROTECTED] ). Thanks Scott N5SM

[Elecraft] Kaf2

2007-05-30 Thread Scott McDowell
My KAF2 has been sold. Thanks Scott N5SM _ More photos, more messages, more storage—get 2GB with Windows Live Hotmail. http://imagine-windowslive.com/hotmail/?locale=en-usocid=TXT_TAGHM_migration_HM_mini_2G_0507

[Elecraft] FS: Elecraft KAF2 and KXPD1

2006-12-17 Thread Alan Fryer
Both assembled and working fine, surplus to my needs here, have dupes of both. KAF2 = $65 shipped KXPD1 = $55 shipped Christmas Clearance = $110 for both ! PayPal, MO, check OK. Alan, N3BJ -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.409 / Virus

[Elecraft] KAF2 wanted

2006-09-10 Thread NK6A-Don Minkoff
Looking for a KAF2 that might be surplus to your needs. A friend of mine just purchased a K2 and is looking for the audio filter. Contact Len, K6LEC: [EMAIL PROTECTED] Thanks, Don Minkoff NK6A K2 K1 KX1 ___ Elecraft mailing list Post to:

[Elecraft] KAF2 vs DSP

2006-06-03 Thread [EMAIL PROTECTED]
I only have the KAF 2 filter, and have never heard the DSP, but I am very happy with the KAF 2. If anything, position 2 boosts the cw signal, and I don't find any ringing on the cw note. I never use the KAF2 on SSB . I consider the KAF well worth the money, especially since I got it used at

[Elecraft] KAF2 - good filter for CW!!!

2006-05-03 Thread Bill Tippett
UR5LAM wrote: Last evening I finished KAF2 audio-filter for my K2. For adjusting CW filter BFO, and for looking maximum peak with KAF2 I'm used spectrogamm on my PC and XG1 test oscillator. With spectrogramm it's very easy! Now the weak signals on 160 and 80m-band I'm copy very strong with KAF2!

[Elecraft] KAF2 - good filter for CW!!!

2006-05-02 Thread Alexander Ponomarenko
Hi! Last evening I finished KAF2 audio-filter for my K2. For adjusting CW filter BFO, and for looking maximum peak with KAF2 I'm used spectrogamm on my PC and XG1 test oscillator. With spectrogramm it's very easy! Now the weak signals on 160 and 80m-band I'm copy very strong with KAF2! It

RE: [Elecraft] KAF2, KDSP2 or BMF2

2006-04-07 Thread Ron D'Eau Claire
Look at these commercial operators at work for examples of what Jim is talking about: http://www.radiomarine.org/historic-5.html Ron AC7AC -Original Message- Michael, A lot of us older hams developed the habit of wearing our cans (as the headphones were known) a bit in front of our

Re: [Elecraft] KAF2, KDSP2 or BMF2

2006-04-07 Thread Alexandra Carter
Glad you posted this, it's a FB handy household hint to save hearing! 73 de Alex NS6Y On Apr 6, 2006, at 11:01 PM, Ron D'Eau Claire wrote: Look at these commercial operators at work for examples of what Jim is talking about: http://www.radiomarine.org/historic-5.html Ron AC7AC

Re: [Elecraft] KAF2, KDSP2 or BMF2

2006-04-07 Thread Geoffrey Mackenzie-Kennedy
michael taylor [EMAIL PROTECTED] wrote: snip Perhaps a not so obvious feature, if it is true, is through the use of either KAF2 or KDSP2 hams listen at a safer volume with less risk of further hearing lost, by helping our brain by filtering out at least some of the noise before the brain tries

[Elecraft] KAF2 or KDSP2 for K2 #5287

2006-04-06 Thread Alexander Ponomarenko
Hi! I have the question. How much better working KDSP2? It has very expensive price. Are the KDSP2 really so good working that I have to pay half K2 price? TNX for any answer! -- 72 73! de UR5LAM Alexander Ponomarenko RU-QRP-CLUB #103 mailto: [EMAIL PROTECTED] www.qrp.ru

Re: [Elecraft] KAF2 or KDSP2 for K2 #5287

2006-04-06 Thread Tom Althoff
Subject: [Elecraft] KAF2 or KDSP2 for K2 #5287 Hi! I have the question. How much better working KDSP2? It has very expensive price. Are the KDSP2 really so good working that I have to pay half K2 price? TNX for any answer! -- 72 73! de UR5LAM Alexander Ponomarenko RU-QRP-CLUB #103 mailto

Re: [Elecraft] KAF2 or KDSP2 for K2 #5287

2006-04-06 Thread Alexandra Carter
To me that's like saying The MFJ antenna analyzer has given me nothing but trouble therefore I won't buy ANY antenna analyzer. I won't go into what company I think is gradually buying Ten-Tec as their founders die off.. Alex. On Apr 6, 2006, at 3:10 AM, Tom Althoff wrote: It depends on

Re: [Elecraft] KAF2 or KDSP2 for K2 #5287

2006-04-06 Thread Tom Althoff
) CW I suspect you would not feel the KDSP2 was worth the added expense. - Original Message - From: Alexandra Carter [EMAIL PROTECTED] To: Tom Althoff [EMAIL PROTECTED] Cc: elecraft@mailman.qth.net Sent: Thursday, April 06, 2006 6:21 AM Subject: Re: [Elecraft] KAF2 or KDSP2 for K2 #5287

Re: [Elecraft] KAF2 or KDSP2 for K2 #5287

2006-04-06 Thread Vic K2VCO
Alexander Ponomarenko wrote: I have the question. How much better working KDSP2? It has very expensive price. Are the KDSP2 really so good working that I have to pay half K2 price? I have both of them. Keep in mind that I am only a CW operator, so you will have to get the opinion of an SSB

RE: [Elecraft] KAF2 or KDSP2 for K2 #5287

2006-04-06 Thread Darwin, Keith
Great reply Vic, Let's widen the question to make it KAF2 or KDSP2 or NOTHING? Does the basic K2's crystal filtering work well enough that you (any of you) would be happy with no AF filtering or does the AF/DSP filtering add enough that you wouldn't want to be without it? - Keith KD1E -

Re: [Elecraft] KAF2 or KDSP2 for K2 #5287

2006-04-06 Thread Dave Lowenstein
Subject: RE: [Elecraft] KAF2 or KDSP2 for K2 #5287 Great reply Vic, Let's widen the question to make it KAF2 or KDSP2 or NOTHING? Does the basic K2's crystal filtering work well enough that you (any of you) would be happy with no AF filtering or does the AF/DSP filtering add enough that you wouldn't

Re: [Elecraft] KAF2 or KDSP2 for K2 #5287

2006-04-06 Thread Vic K2VCO
Darwin, Keith wrote: Let's widen the question to make it KAF2 or KDSP2 or NOTHING? Does the basic K2's crystal filtering work well enough that you (any of you) would be happy with no AF filtering or does the AF/DSP filtering add enough that you wouldn't want to be without it? Selectivity has

RE: [Elecraft] KAF2 or KDSP2 for K2 #5287

2006-04-06 Thread Darwin, Keith
the right to change my mind as I get more operating time with various rigs :-) - Keith KD1E - -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Vic K2VCO Sent: Thursday, April 06, 2006 12:54 PM To: Elecraft Group Subject: Re: [Elecraft] KAF2 or KDSP2 for K2

RE: [Elecraft] KAF2 or KDSP2 for K2 #5287

2006-04-06 Thread EricJ
I do with the built-in crystal filters. Others have other requirements, of course. Eric KE6US -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Dave Lowenstein Sent: Thursday, April 06, 2006 9:49 AM To: Elecraft Group Subject: Re: [Elecraft] KAF2 or KDSP2

Re: [Elecraft] KAF2 or KDSP2 for K2 #5287

2006-04-06 Thread Vic K2VCO
Darwin, Keith wrote: When I had narrow filtering in my Omni V I found that S/N did not increase as bandwidth decreased. Instead, the noise began to sound like signal since both were at the same frequency. Add some filter ringing to the mix and sometimes the narrowest settings made copy worse.

Re: [Elecraft] KAF2 or KDSP2 for K2 #5287

2006-04-06 Thread Lyle Johnson
One nice feature of the DSP for CW operation is the ability to open up the filters for bands that seem to be dead or have little activity. You set the crystal filter to its widest bandwidth and put the DSP in LP (its widest setting). Activate the denoiser. The band is quiet, background

Re: [Elecraft] KAF2 or KDSP2 for K2 #5287

2006-04-06 Thread Rick Dettinger
@mailman.qth.net Sent: Thursday, April 06, 2006 9:14 AM Subject: RE: [Elecraft] KAF2 or KDSP2 for K2 #5287 Great reply Vic, Let's widen the question to make it KAF2 or KDSP2 or NOTHING? Does the basic K2's crystal filtering work well enough that you (any of you) would be happy with no AF filtering or does

Re: [Elecraft] KAF2 or KDSP2 for K2 #5287

2006-04-06 Thread Randy Rathbun NV0U
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 I spent a few years with just the stock K2 when it came to audio filtering. Thought it was great just like it was. Last year I put the DSP filter in. Now I am sold on it. I love the noise removal function on the thing. I find that if the noise

Re: [Elecraft] KAF2 or KDSP2 for K2

2006-04-06 Thread Chuck Gehring
FWIW, I operate CW only and have the KAF2 and the KDSP2 installed in my K2. For the most part I find that I only need the XFIL set to FL2 at 500Hz. However there are times when the bands are crowded or noisy and I am trying to work a weak signal. Then I find that the KDSP2 with the Denoiser

Re: [Elecraft] KAF2 or KDSP2 for K2 #5287

2006-04-06 Thread Roland Elvie Whitsitt
I would strain to hear a P5! Roland n5vwn - Original Message - From: EricJ [EMAIL PROTECTED] To: 'Dave Lowenstein' [EMAIL PROTECTED]; 'Elecraft Group' elecraft@mailman.qth.net Sent: Thursday, April 06, 2006 10:24 AM Subject: RE: [Elecraft] KAF2 or KDSP2 for K2 #5287 Same here, Dave

Re: [Elecraft] KAF2 or KDSP2 for K2 #5287

2006-04-06 Thread Mike Harris
G'day folks, snipo Let's widen the question to make it KAF2 or KDSP2 or NOTHING? Does the basic K2's crystal filtering work well enough that you (any of you) would be happy with no AF filtering or does the AF/DSP filtering add enough that you wouldn't want to be without it? snipo Unless there

Re: [Elecraft] KAF2 or KDSP2 for K2 #5287

2006-04-06 Thread Rob Locher W7GH
Idiom Press make a SCAF-based audio filter called the SCAF-1. It's a low-pass filter with a variable upper cutoff frequency. It also operates in real-time with no ringing. Recordings of the SCAF-1 in action are available on the web site: http://www.idiompress.com/scaf-1.html The

Re: [Elecraft] KAF2, KDSP2 or BMF2

2006-04-06 Thread Jim Campbell
Michael, A lot of us older hams developed the habit of wearing our cans (as the headphones were known) a bit in front of our ears when working CW. I still do it. It protects my ears from sudden loud sounds. It also cuts down on the ringing in my ears. There is almost nothing as hard on

[Elecraft] Elecraft KAF2

2006-03-02 Thread Gilbert J Cross
I have for sale a KAF2. C19 has been padded with both fixed and a variable capacitor so as to set the 32.768 KHz xtal to obtain precise time. Battery still good , checks at 3.042 VDC. Asking $55.00. Will ship CONUS. Gil K8EAG If interested please contact off

[Elecraft] KAF2 or KDSP2

2006-02-02 Thread Joseph Reed
Hi All, The build of 5226 continues and I have a question best answered by the serious cw dxers in the group. Which is the better audio filter for cw? AF dsp on ssb has left me at best luke warm. And I don't do that much ssb dxing if I can help it. So don't consider ssb in the answer.

RE: [Elecraft] KAF2 or KDSP2

2006-02-02 Thread Robert Tellefsen
:[EMAIL PROTECTED] Behalf Of Joseph Reed Sent: Thursday, February 02, 2006 6:53 PM To: elecraft@mailman.qth.net Subject: [Elecraft] KAF2 or KDSP2 Hi All, The build of 5226 continues and I have a question best answered by the serious cw dxers in the group. Which is the better audio filter for cw? AF

[Elecraft] KAF2 clock cell life

2005-08-02 Thread Steve Jackson
I forget when I got my KAF2, but it was pretty much right when they came out. My clock seesm to lose its marbles a lot these days. I figure it might be the lithium cell. Wonder how long they are supposed to last for in this application? I have a picoammeter here at work. Maybe I could hook it

[Elecraft] WTB: ELECRAFT KAF2

2005-06-22 Thread Ed Worst
Does anyone have a KAF2 they're not using? Please contact me off-list if you do. Tnx es 73, ed - k9ew ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub

[Elecraft] KAF2 K2 Audio Filter and RTC for sale

2005-02-01 Thread Philip Theis
Hi, I have an un-built KAF2 for sale. Please make offer via email, Thanks, Phil ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.):

[Elecraft] KAF2 FS

2005-01-02 Thread NB1B
I have an Elecraft KAF2, fully built, FS, $35 postpaid to US. Works FB- replaced it with KDSP2. Please contact off reflector. Dennis NB1B ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list

[Elecraft] KAF2

2005-01-02 Thread Mike,W8KRR
Looking for a KAF2 for my K2 - any out there? Mike ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.):

[Elecraft] KAF2 For Sale on eBay

2004-09-24 Thread Bill Flynn AIØC
Hi All, I have a KAF2 for sale on eBay. Visit: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=5722470361 to bid on it. The auction ends on October 1st. I just bought a KDSP2 so I don’t nee the KAF2 any more. 73, Bill... AIØC ___ Elecraft

[Elecraft] KAF2

2004-07-22 Thread Gregg Lengling
Looking for a KAF2 for a friend (W9LR) who just picked up a K2 S# 529. I've got some fixing to do to it for him and do the upgrades from A to B and the such. If you have a KAF2 for sale built or unbuilt let me know via direct email. Gregg R. Lengling, W9DHI, Retired Administrator

[Elecraft] KAF2 v. KDSP2

2004-07-22 Thread Howard W. Ashcraft
I am planning on purchasing a K2 for general use (SSB and CW) with a current preference for CW. (I enjoy working on CW although I'm not very good.) My preferences may change as my experience grows, so flexibility is important. The question is, why would you want to have the KAF2 instead of

RE: [Elecraft] KAF2 v. KDSP2

2004-07-22 Thread Gregg Lengling
To: elecraft@mailman.qth.net Subject: [Elecraft] KAF2 v. KDSP2 I am planning on purchasing a K2 for general use (SSB and CW) with a current preference for CW. (I enjoy working on CW although I'm not very good.) My preferences may change as my experience grows, so flexibility is important. The question

Re: [Elecraft] KAF2 v. KDSP2

2004-07-22 Thread Vic Rosenthal
Howard W. Ashcraft wrote: Is the KDSP2 less effective for reducing unwanted noise on CW, or is it equally effective but more costly. I assume that Elecraft continues to sell the KAF2 because it either has a performance advantage in some niche or is less costly and works for certain uses (such

Re: [Elecraft] KAF2 v. KDSP2

2004-07-22 Thread Don Wilhelm
Howard, I can't speak for anyone else, but I just don't like the sound of any audio DSP processor, particularly for CW use. They are good for digging signals out very close to the noise level, but my ears find the KAF2 far less irritating for extended operating periods. It is more a matter of

Re: [Elecraft] KAF2 v. KDSP2

2004-07-22 Thread Daniel Reynolds
I bought my KAF2 before the KDSP2 was available. I have not upgraded to the KDSP2 for the following reasons: - it costs more - it uses more current - the KAF2 does a great job on CW If you are a SSB op, and are going with a KPA100... then it would be a natural progression to have a KDSP2 so that

RE: [Elecraft] KAF2 v. KDSP2

2004-07-22 Thread Ron D'Eau Claire
I operate 99.99% CW (Haven't even fired up PSK in a year and it's been longer than that since I plugged in the mic) and, not saying anything negative about either the DSP or the audio filter, I don't have either and don't feel motivated to add either to my K2/100. I really like the sound of the

[Elecraft] KAF2 v. KDSP2

2004-07-22 Thread Bill Tippett
W1WF wrote: The question is, why would you want to have the KAF2 instead of the KDSP2? Cost, and for some issues the KAF2 will work as well as its more expensive brother. Many guys have KAF2's sitting in their desks that have been replaced by KDSP2's, and these are typically available

Re: [Elecraft] KAF2 v. KDSP2

2004-07-22 Thread Hank Kohl K8DD
In the CQ 160 CW contest this past winter we used my K2/100 (SN 850 A)with the KDSP2. No receive antenna (that's a whole story by itself!) and an Inverted-L with a flock of radials. Probably 80% of the time we ran with out any NR or DSP filters. If you could put a dollar amount on multipliers,

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