[Elecraft] First K3 in Sweden

2007-11-25 Thread Jan Erik Holm
Look here: http://sk3w.se/ 73 Jim SM2EKM ___ 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 H

Re: [Elecraft] 9V info

2007-12-04 Thread Jan Erik Holm
Yes or look here: http://www.qsl.net/oh2mcn/license.htm Doesn´t look too bright. They say you have to stay minimum 3 months to be able to operate. 73 Jim SM2EKM --- [EMAIL PROTECTED] wrote: Ralph, Take a look at the 9V radio club www.sarts.org.sg and the IARU

Re: [Elecraft] K3 2 tone 3rd order dynamic range at 2 KHz tone spacing

2007-12-29 Thread Jan Erik Holm
Would be nice to see measurements with preamp both on and off. Also please note what the MDS is. Happy New Year / Jim SM2EKM - [EMAIL PROTECTED] wrote: Tnx for info. Is this with the preamp off? Yes. ___

Re: [Elecraft] K3 2 tone 3rd order dynamic range at 2 KHz tone spacing

2007-12-29 Thread Jan Erik Holm
Thanks Toby, I suspect the IMDDR3 wouldn´t change much between PRE on and off then. 73 Jim SM2EKM --- Toby Deinhardt wrote: Would be nice to see measurements with preamp both on and off. Also please note what the MDS is. TRX PRE on PRE off IC-781 (500Hz) -14

Re: [Elecraft] K3 Performance

2007-12-29 Thread Jan Erik Holm
The K3 is NOT free from key clicks, the question might be how much we accept. Personally I would have liked it better with the keying "a bit" softer, that is a little bit better key click performance. It would have been nice if there was some adjustment allowed, lets say from 5 ms up to 7 ms or so

Re: [Elecraft] ARRL RTTY Roundup

2008-01-07 Thread Jan Erik Holm
Is this the ARRL reflector? Or the RTTY reflector? or the antenna reflector? or the anything goes reflector? When I subscribed I had the impression it was the Elecraft reflector, obviously I was wrong. Can someone point me to the Elecraft reflector. / SM2EKM -

Re: [Elecraft] Re: Wayne's comment on Filter Selection

2007-05-05 Thread Jan Erik Holm
"fairly high level"can you present any numbers? What is the dynamic range for the DSP? 73 Jim SM2EKM - wayne burdick wrote: The DSP subsystem has extremely high fidelity and low IMD. Until signals reach a fairly high level, the DSP's own filtering could handle t

Re: [Elecraft] start without ANY extra roofing filters....

2007-05-07 Thread Jan Erik Holm
This I have noticed during my own IP3 measurements on my FT-1000D, not as much as 16dB but around 3 dB. This was with the INRAD roofing filter and 2 kHz offset. in any case this was enough for me not to use the filter. I´m eagerly waiting for measurement figures on the K3. Beats me why they can´t

[Elecraft] Sherwood Engineering and DSP

2007-06-06 Thread Jan Erik Holm
Lets hope Elecraft got it right! /SM2EKM - Sherwood Engineering just put up their Dayton 2007 presentation on DSP and how it isn't everything it is cracked up to be. See: http://www.sherweng.com/documents/Dayton2007w.pdf ___

Re: [Elecraft] Big antenna - Collins 13 ele Log?

2007-09-26 Thread Jan Erik Holm
dBi or dBd? If dBi not impressive. My 20m antenna produces 19 dBi and it´s by no means IMO very big, just a 5 over 5 yagi stack. 73 Jim SM2EKM --- Phil Kane wrote: The 17 dB gain of a rhombic is hard to beat. All the commercial HF point-to-point stations used them, as did a

[Elecraft] WTB PR6 or PR6-10

2016-03-19 Thread Jan Erik Holm
Would like to buy a PR6 or PR6-10. I will be in Visalia for the DX convention, can also produce a US shipping address. 73 Jim SM2EKM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qt

Re: [Elecraft] WTB PR6 or PR6-10

2016-03-20 Thread Jan Erik Holm
I did find a PR6. Thank you very much / Jim SM2EKM >> Would like to buy a PR6 or PR6-10. I will be in Visalia for the DX convention, can also produce a US shipping address. 73 Jim SM2EKM __ Elecraft mailing list Home: http://mailman

Re: [Elecraft] [K3] Phase Noise / CW Key Clicks

2012-09-14 Thread Jan Erik Holm
On 2012-09-13 20:21, Bill W4ZV wrote: > > Matt Zilmer wrote >> >> Phase noise and key clicks are the enemy. I respectfully suggest that >> Wayne emphasize (as well) that designing a transceiver to >> intentionally not produce either of these is a worthy objective more >> on a moral plane than an o

Re: [Elecraft] [K3] Phase Noise / CW Key Clicks

2012-09-14 Thread Jan Erik Holm
On 2012-09-13 20:46, Jim Brown wrote: > On 9/12/2012 9:18 PM, Matt Zilmer wrote: >> The main real-world problem is that the K3 is a minority in the >> general ham rig population. Maybe someday, the K3 penetration rate >> will be high enough that we can hear it in how quiet the bands are. >> Crowde

Re: [Elecraft] [K3] Phase Noise / CW Key Clicks

2012-09-14 Thread Jan Erik Holm
On 2012-09-14 01:00, Al Lorona wrote: > I once spoke to a nationally-known, "Big Gun" contester who felt that the > phase > noise and key click sidebands generated by his station were an asset because > they cleared a "guard band" around his signal since other stations had to stay > away. He felt

Re: [Elecraft] [K3] Phase Noise / CW Key Clicks

2012-09-14 Thread Jan Erik Holm
reasing it, and why would you want people to be > able to mess with something that works as well as it does? I'm euphoric > that Elecraft doesn't allow it to be adjusted. > > Dave AB7E > > > > On 9/14/2012 1:10 AM, Jan Erik Holm wrote: >> I would like to

Re: [Elecraft] [K3] Phase Noise / CW Key Clicks

2012-09-14 Thread Jan Erik Holm
ral bad behavior. In my opinion, the person who does not speak > out becomes a sideline enabler. > > So much for amateur radio being a self-policing hobby ... > > Dave AB7E > > > > On 9/14/2012 1:23 AM, Jan Erik Holm wrote: >>> >> Nothing new und

Re: [Elecraft] [K3] Phase Noise / CW Key Clicks

2012-09-14 Thread Jan Erik Holm
On 2012-09-14 21:34, Jim Brown wrote: > On 9/14/2012 12:02 PM, Jan Erik Holm wrote: >> So if I don´t report those guys I´m as bad as they are. Jeez, are you >> >> serious? > > When I was part of the American Civil Rights Movement many years ago, we > learned that if y

Re: [Elecraft] [K3] Phase Noise / CW Key Clicks

2012-09-14 Thread Jan Erik Holm
On 2012-09-14 22:21, David Gilbert wrote: > > I only said "almost no clicks" because I don't believe in absolutes. > OK then I know where you stand. > > Please identify what level (in db referenced to the main carrier within > some defined bandwidth) you believe clicks are generated by the K3 and

Re: [Elecraft] [K3] Phase Noise / CW Key Clicks

2012-09-14 Thread Jan Erik Holm
On 2012-09-14 22:15, Ron D'Eau Claire wrote: > Key clicks are CW modulation sidebands. Key click management is about having > CW sidebands that occupy a reasonable amount of the spectrum, not > eliminating them entirely. Eliminating clicks (the sidebands) is easily done > - just don't key the signa

Re: [Elecraft] K3-PR10

2012-10-26 Thread Jan Erik Holm
Same here, I have a 6/6 Yagi stack on 10 and get more or less the same reaction. A built in preamp for 6 and 10m would have been super. As soon as I get some time I will make one. /SM2EKM -- On 2012-10-26 18:02, Dave Hachadorian wrote: > I have 6 elements on 10, and the K3

Re: [Elecraft] K3 receiver IMD

2018-04-04 Thread Jan Erik Holm
It would be very interesting to read that article but I don´t have Funkamateur magazine. / Jim SM2EKM On 2018-04-05 06:57, Benny Aumala wrote: FUNKAMATEUR 4-2018 has interesting article by OE3HKL for broadbad impulse measurements of RX IMD. Arrangements are interesting and elaborate, but resu

Re: [Elecraft] Fwd: New Sherwood report

2010-12-03 Thread Jan Erik Holm
Yes but to what rise/fall time was the radio set? AFAIK in the FT5000 it can be changed. /Jim SM2EKM --- On 2010-12-02 02:43, Eric Swartz - WA6HHQ, Elecraft wrote: > They already have - See the keying bandwidth spectral plots in the ARRL > reviews. The FT-5000 is considerably wider tha

Re: [Elecraft] Fwd: New Sherwood report

2010-12-03 Thread Jan Erik Holm
Yes absolutely /SM2EKM On 2010-12-02 02:58, Steve Ellington wrote: > Wouldn't having bad key clicks be an advantage in a contest? > > Steve N4LQ > > > > - Original Message - > From: "Eric Swartz - WA6HHQ, Elecraft" > To: "David Gilbert" > Cc: > Sent: Wednesday, December 01, 20

Re: [Elecraft] Fwd: New Sherwood report

2010-12-03 Thread Jan Erik Holm
world and some of these "jerks" even gets defended by the contest sponsors. / Jim SM2EKM --- On 2010-12-03 14:48, Barry N1EU wrote: > > is no advantage. In any case, you are just being a jerk (or worse) if > you're knowingly producing key clicks. > > Barry N

Re: [Elecraft] Fwd: New Sherwood report

2010-12-03 Thread Jan Erik Holm
OK. AFAIK at 4 ms a CW TX will have to much bandwith. Even the K3 at 5 ms (if it hasen´t changed since I measured it) do have "mild clicks". I wish the K3 could be set to something like 7 or 8 ms. / Jim SM2EKM On 2010-12-03 14:43, Barry N1EU wrote: > > >

Re: [Elecraft] Fwd: New Sherwood report

2010-12-03 Thread Jan Erik Holm
rwise excellent > SSB Tx IMD numbers, especially in Class A?" Really, the published Tx IMD > figures are meaningless unless dynamic testing is conducted to simulate > rapid changes in power associated with voice modes. > > Paul, W9AC > > - Original Message - >

Re: [Elecraft] Fwd: New Sherwood report

2010-12-03 Thread Jan Erik Holm
estion is >> "what is the FTdx5K's ALC doing to undermine the rig's otherwise excellent >> SSB Tx IMD numbers, especially in Class A?" Really, the published Tx IMD >> figures are meaningless unless dynamic testing is conducted to simulate >> rapid c

Re: [Elecraft] Fwd: New Sherwood report

2010-12-03 Thread Jan Erik Holm
Yes I do know that it´s not the rise/fall time alone, that has never been my point. However one factor is the rise/fall and if it´s too fast it will not be possible to fix it with shaping. Why, yes IMO the K3 clicks too much. I know it can be done since there are radios around that doesn´t click a

Re: [Elecraft] Fwd: New Sherwood report

2010-12-03 Thread Jan Erik Holm
No I do not experience key clicks with my own K3. I don´t know what it sounds like and it´s no idea to ask anyone either. It is all the other K3´s that are on the air that has "mild keyclicks" Yes there are hot switching amps and QSK amps that aren´t correct, I usually can detect those. No it´s

Re: [Elecraft] Fwd: New Sherwood report

2010-12-03 Thread Jan Erik Holm
ent! Rise time alone, does not cause > key clicks! > > And just for the record Elecraft, I do NOT want you to change this CW rise > time on the K3! > > Tom - W4BQF > > > -Original Message- > From: elecraft-boun...@mailman.qth.net > [mailto:elecraft-boun...@mai

Re: [Elecraft] Fwd: New Sherwood report

2010-12-03 Thread Jan Erik Holm
e time controls the basic CW bandwidth but "clicks" > are a feature of discontinuities in the CW envelope. Please > do not confuse the two. > > 73, > > ... Joe, W4TV > > On 12/3/2010 9:46 AM, Jan Erik Holm wrote: >> Waveform? When you have a 1 ms raise/fa

Re: [Elecraft] On the K3's CW keying envelope shaping, rise/fall times, and CW ALC

2010-12-03 Thread Jan Erik Holm
Good my 5 ms measurement was the closest so far. Thank´s for the explanation on the construction, appreciate it. After all, why should I bother, if my K3 clicks it doesn´t disturb me. /Jim SM2EKM On 2010-12-03 17:56, Wayne Burdick wrote: > There will never be a K3 menu option th

Re: [Elecraft] Fwd: New Sherwood report

2010-12-03 Thread Jan Erik Holm
he envelope with the resulting click. > > The change in ALC generated clicks with changing envelope > decay is minimal. > > 73, > > ... Joe, W4TV > > On 12/3/2010 2:06 PM, Jan Erik Holm wrote: >> Yes 99% of all CW stations clicks at the "break" side. >> >

Re: [Elecraft] Fwd: New Sherwood report

2010-12-03 Thread Jan Erik Holm
Fourier analysis on this but it was 35 years ago and I just have forgot it all. The teacher I had was a ham but he is an SK now. / Jim SM2EKM -- On 2010-12-03 20:36, Kok Chen wrote: > > On Dec 3, 2010, at 11:06 AM, Jan Erik Holm wrote: > >> Yes 99% of all CW stations click

Re: [Elecraft] CW Bandwidth

2010-12-05 Thread Jan Erik Holm
For a CW signal with clicks at the break side (like the majority) the faster you key the stronger and wider will the click bandwith be. This can clearly be heard every day on the ham bands. So this calls for Camp 2. However I do not agree that it´s either 1 or 2, in practice it works differently.

[Elecraft] APF filter performance

2010-12-05 Thread Jan Erik Holm
I finally got to use the APF in reel life, I´m not too active these days. Wanted to work the ZL8X boys on 160 so went out to the radio station and brought the K3 with me and fired the big rig up. All I can say is that the APF is excellent. ZL8X was weak as water but with APF it was possible to copy

Re: [Elecraft] Recommended AGC settings for separation of signalsin CW pile-ups

2010-12-05 Thread Jan Erik Holm
Exactly, I have noticed this too but never said anything before. It did happen a few times during the SAC CW contest that I operated, never had time to take part in CQWW CW. The radio do have a problem in this respect and I can see that 5B4AGN has found it too. Something is going on but what it is

Re: [Elecraft] Inverted-L (was OT: Vertical antenna)

2010-12-20 Thread Jan Erik Holm
I hope people doesn´t learn from this statement. IMO this is as far from logic one can get. /Jim -- On 2010-12-21 02:27, Don Wilhelm wrote: > > The ground conductivity in my area is not the greatest, so I have > accepted the logical consequences of that fact. > > 73, > Don W3FPR > _

Re: [Elecraft] spectrogram

2010-12-30 Thread Jan Erik Holm
No problem at this end, I use AVG. /James - On 2010-12-30 19:30, Jim Brown wrote: > Thanks for the alert, Rich, and for your report, Guy. I would > appreciate any others. If it turns out to be real, I'll take it down. > > 73, Jim K9YC > > On 12/30/2010 5:42 AM, Rich - K1HTV wrote: >> Jim

Re: [Elecraft] Latest Sherwood table

2011-01-03 Thread Jan Erik Holm
Is this a known issue with the FT-2000? /SM2EKM On 2010-12-31 23:31, Joe Subich, W4TV wrote: > > or issues of IMD generated in the noise blanker (even when the NB > is off). > > 73, > > ... Joe, W4TV > __ Elecraft mailing

Re: [Elecraft] Latest Sherwood table

2011-01-03 Thread Jan Erik Holm
gt; > The FT-2000 uses the same noise blanker circuit as the FT-1000, > FT-1000D, FT-1000MP, etc. > > 73, > > ... Joe, W4TV > > > On 1/3/2011 2:31 PM, Jan Erik Holm wrote: >> Is this a known issue with the FT-2000? >> /SM2EKM >> >> On 2

Re: [Elecraft] Latest Sherwood table

2011-01-03 Thread Jan Erik Holm
ll suddenly operate differently in a fourth model. > > 73, > > ... Joe, W4TV > > > On 1/4/2011 12:54 AM, Jan Erik Holm wrote: >> Yes I know all of this about the FT-1000, this was >> NOT the question. >> >> I have never heard that the NB in the 2000 is pr

Re: [Elecraft] (Very OT)Plasma TV noise

2011-01-22 Thread Jan Erik Holm
Or here http://www.kongsfjord.no/dl/dl.htm Jim SM2EKM - On 2011-01-22 08:23, David Cutter wrote: > Others have mentioned null steerers that you can buy and are very effective. > If you would rather build one for yourself, see the latest SPRAT (best value > for money radio mag - eve

Re: [Elecraft] KPA500 - just 500 watts?

2011-01-25 Thread Jan Erik Holm
Yes do you want to buy one? /Jim SM2EKM - On 2011-01-25 20:09, Grant Youngman wrote: > A listen on the bands during most contests, makes it pretty clear which of > the 3 is most normally left out :-) > > 4cx15000 anyone? > > Grant/NQ5T > > On Jan 25, 2011, at 12:59 PM, Lu Romero wrote: >

Re: [Elecraft] K3 at VP8ORK

2011-02-01 Thread Jan Erik Holm
Good for you that they had an ACOM amplifier otherwise you wouldn´t have worked them. Instead you should send a thank letter to ACOM. Jim SM2EKM On 2011-02-01 23:54, Rich - K1HTV wrote: > The So. Orkney micro-lite DX-pedition must be using a K3 on 160M. They heard > my > bar

Re: [Elecraft] K3S QST Article

2016-10-17 Thread Jan Erik Holm
Wayne, Is there a way to do this " at home" ? Since I´m in Sweden it might not be practical to send the radio all the way to California for this. 73 Jim SM2EKM -- On 2016-10-17 02:25, Wayne Burdick wrote: Knut, The K3S as originally shipped does not

Re: [Elecraft] IMD and CW

2016-12-23 Thread Jan Erik Holm
On 2016-12-23 19:11, Alan Bloom wrote: You could always compensate for it by adjusting the K3 for softer key shaping. Alan N1AL How do you do that ? / 73 Jim __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/ele

Re: [Elecraft] IMD and CW

2016-12-23 Thread Jan Erik Holm
Yes was thinking it was something new. Thank´s Alan 73 merry xmas / Jim SM2EKM On 2016-12-24 06:23, Alan Bloom wrote: Apparently you can't. I must have been thinking of the weight adjustment. Alan N1AL On 12/23/2016 09:22 PM, Jan Erik Holm wrote

[Elecraft] K3/0 - mini

2013-04-29 Thread Jan Erik Holm
If I understand my source correctly there is going to be one such thing available. Looking for more info. /Jim SM2EKM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm

Re: [Elecraft] OT - anyone have experience with effects of metal roofs on antenna performace?

2013-07-05 Thread Jan Erik Holm
On 2013-07-05 22:22, Brian Alsop wrote: SWR is a pretty coarse indication of interaction. Interactions can change directional antenna F/B and F/S ratio by 6-10 db easily (assuming you have it in the first place) and hardly affect SWR. At least, this is my experience from antenna modeling. Howe

[Elecraft] K3/0 question to Elecraft

2012-02-16 Thread Jan Erik Holm
Will the K3/0 in the future be expandable to a K3/10 or K3/100 ? Since, if I haven´t got the wrong information, the price tag of the K3/0 is about half of a basic K3 this could be nice. 73 Jim __ Elecraft mailing list Home: http://mailman.

Re: [Elecraft] [Elecraft_K3] K3 and tiny key clicks

2012-02-16 Thread Jan Erik Holm
Still waiting for information on this. Any progress? 73 Jim , On 2011-12-08 02:09, Wayne Burdick wrote: > Hi Lee, > > The clicks are due to the fact that the K3 uses PIN diode switching of > all stages during T/R. The clicks fall off with frequency, and in some > cases might be

Re: [Elecraft] Private Sales of used Elecraft Rigs

2011-06-02 Thread Jan Erik Holm
I can not understand how going down to the local post office would be a problem and if the customer pays the shipping why would that present a problem for the seller, but then again what do I know? / Jim SM2EKM On 2011-06-02 18:12, Phil Hystad wrote: > One reason is that sending a

Re: [Elecraft] What is a dB worth was: Re: KX3 vs. K3 and other rigs?

2011-06-07 Thread Jan Erik Holm
Well when I was in to EME on 2m I was hunting for every .1 dB I could find. /Jim SM2EKM -- On 2011-06-07 16:42, Rose wrote: > > There's a saying among VHF / UHF'ers in reference > to coax and connector losses that every .5db counts. > > 73! Ken - K0PP __

[Elecraft] K3 no mod from FP conn

2012-11-16 Thread Jan Erik Holm
Before I hassle elecraft support maybe someone on the list can come up with something. Just put together a new K3 and I can´t get any mic connection to the FP connector, i e no modulation. It works ok from the rear connector. I checked Config / Main and don´t seem to find any errors. Is there any

Re: [Elecraft] K3 no mod from FP conn

2012-11-16 Thread Jan Erik Holm
ing "2" > should toggle the bias on and off. 73, Guy. > > On Fri, Nov 16, 2012 at 9:40 AM, Jan Erik Holm <mailto:sm2...@bdtv.se>> wrote: > > Before I hassle elecraft support maybe someone on > the list can come up with something. > > Just put

Re: [Elecraft] K3 no mod from FP conn

2012-11-16 Thread Jan Erik Holm
2012-11-16 17:52, Don Wilhelm wrote: > Jim, > > The MIC SEL menu item is found in the main menu. The entry in the > CONFIG menu is MIC BTN which is for the :MIC BUTTONS - that is the up > and down buttons if they are present. > > 73, > Don W3FPR > > On 11/16/2012 11:11

Re: [Elecraft] K3 no mod from FP conn

2012-11-16 Thread Jan Erik Holm
with the menu display > going back and forth between "FP.x bIAS" and "FP.x " . > > Does it not do this? > > 73, Guy. > > On Fri, Nov 16, 2012 at 1:17 PM, Jan Erik Holm <mailto:sm2...@bdtv.se>> wrote: > > Yes MIC BTNunderstand, it

Re: [Elecraft] Fw: CQ WW DX Contest CW 2011 - Unofficial claimed scores

2011-12-04 Thread Jan Erik Holm
Indeed! This was reported many many moons ago, also by me. No fix I guess, just the way the K3 is. /SM2EKM On 2011-12-04 15:11, Cady, Fred wrote: > S5 region, which is common, AGC is compressing them together. When AGC > is off, these signals are now in a linear region of the transfer curve > and c

Re: [Elecraft] Fw: CQ WW DX Contest CW 2011 - Unofficial claimed scores

2011-12-04 Thread Jan Erik Holm
Oh by the way, this "thing" is not an audio thing. It is something totally different. Think this issue was discussed last year. There where some leads on it but don´t know the outcome, if any. /Jim SM2EKM --- On 2011-12-04 18:05, Jan Erik Holm wrote: > Indeed! This was

Re: [Elecraft] K3 AGC Mush

2011-12-04 Thread Jan Erik Holm
This is exactly what I have noticed too. Not even 10 signals are needed either. /SM2EKM --- On 2011-12-04 20:53, Merv Schweigert wrote: > >> Also, in the heat of the contest or DX pile up most reporters do not >> recall how they had their AGC parameters set (

Re: [Elecraft] K3 AGC Mush

2011-12-04 Thread Jan Erik Holm
Could be interesting if you could name at least a few of these radios? /SM2EKM --- On 2011-12-04 20:14, Eric Swartz WA6HHQ - Elecraft wrote: > > This is an issue that has been reported for years on a wide range of > radios from all of the manufacturers, with conflicting reports pro/con > on

Re: [Elecraft] K3 AGC Mush

2011-12-04 Thread Jan Erik Holm
nds multiple > cw signals. So far it has not reproduced the issue here. > > What is the signal spacing you are hearing this with? All -exactly- on > the same freq? Or spread out? > > 73, Eric > > _..._ > > > On 12/4/2011 12:20 PM, Jan Erik Holm wrote: >> Th

Re: [Elecraft] K3 shortened dits - you can remedy this under N1MM+

2020-12-07 Thread Jan Erik Holm
How do you have the TX DLY set ? / Jim SM2EKM Den 2020-12-07 kl. 20:37, skrev Barry Simpson: I beg to differ. I have an original K3 dating from 2009 which I completely updated including the synthesisers. It made no difference to the shortened character issue which is still the same. It is t

Re: [Elecraft] RE: Any Amplifier News

2008-12-23 Thread Jan Erik Holm
Checking product information I can see it is advertised as a 1000W PEP amplifier. What happens with IMD at over 1300W? / SM2EKM --- Mitch Wolfson DJØQN wrote: Eric, The thing that makes the KPA-1500 most attractive from my perspective, and surely others, is it's su

Re: [Elecraft] RE: Any Amplifier News

2008-12-23 Thread Jan Erik Holm
limit (750 watts), anyway ;-) 73, Mitch - Original Message - From: "Jan Erik Holm" Cc: Sent: Tuesday, December 23, 2008 10:28 AM Subject: Re: [Elecraft] RE: Any Amplifier News Checking product information I can see it is advertised as a 1000W PEP amplifier. What happens w

Re: [Elecraft] happy holidays

2008-12-24 Thread Jan Erik Holm
I beg to differ. Christmas eve is Dec 24 / SM2EKM --- DOUGLAS ZWIEBEL wrote: In chronological sequence: HanukkahMonday December 22, 2008 for 7 days, ongoing now Christmas Thursday December 25, 2008 Kwanzaa Friday December 26

[Elecraft] K3 KPA3 bias adjust

2009-01-03 Thread Jan Erik Holm
I find nothing about it in any manual. R11 on KPA3 I guess. What are the specifications for the bias adjust? 73 Jim SM2EKM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr.

Re: [Elecraft] K3 KPA3 bias adjust

2009-01-03 Thread Jan Erik Holm
there can give you specifics. Ron AC7AC -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jan Erik Holm Sent: Saturday, January 03, 2009 6:55 AM To: Elecraft@mailman.qth.net Subject: [Elecraft] K3 KPA3 bias adjust I find no

Re: [Elecraft] OT Tuner Basics

2009-01-15 Thread Jan Erik Holm
> Tom, N5GE wrote: > > This indicates that the SB200 input is not 50 ohms. You may have some > troubles with the SB200 input, but you should be able to adjust that. > Look at the SB200 manual and see if it has input matching adjustments. Yes it has. Take amp out from the green cover, tune the inp

Re: [Elecraft] New K3

2009-01-22 Thread Jan Erik Holm
I´ve always wondered about this, I wouldn´t even call it interaction, it´s like "more" then interaction. Mic gain should NEVER have any influence on Vox gain. Please Elecraft fix this as soon as possible. IMO this is a very big design flaw. 73 Jim SM2EKM - Bruce McLaug

Re: [Elecraft] New K3

2009-01-23 Thread Jan Erik Holm
Thanks for the explanation, I understand how it´s done, however I see it in a different way, sorry. 73 Jim SM2EKM -- Lyle Johnson wrote: >> Mic gain should NEVER have any influence on Vox gain. > > Mic Gain should always be adjusted to provide 4+ bars of "ALC" > indication on

Re: [Elecraft] FT9000 vs the K3?

2009-01-23 Thread Jan Erik Holm
There is a lot more to a radio but RX IMDDR3, seems to me people tend to forget that. A radio, at least the kind we talk about here, also has a transmitter, don´t forget that! / Jim SM2EKM - Koppendorfer Klaus wrote: > see: http://www.remeeus.eu/hamradio/pa1hr/productreview.ht

Re: [Elecraft] Elecraft QSO party.

2009-01-24 Thread Jan Erik Holm
Yes 7052 is not a good spot in EU for CW. Good idea instead going below 7040, 7025-7033 segment would be just fine. / Jim SM2EKM - Geoffrey Mackenzie-Kennedy wrote: > Hi Wayne, > > Look forward to that! One suggestion, the 40m frequency 7040 kHz is used by > Eu RTTY stations (

Re: [Elecraft] FS Elecraft K3

2009-01-24 Thread Jan Erik Holm
Don´t say that. I´m still very comfortable using my old FT-1000D. Since the TX IMD performance of the K3 is much inferior to the FT-1000D I´m glad I kept it. I feel very reluctant using my K3 on SSB. 73 Jim SM2EKM - Robert C.Abell wrote: > Hunter, > > You will be very sorry i

Re: [Elecraft] Pumping with K3

2009-01-24 Thread Jan Erik Holm
So we are going to ride the RF gain just like we did 50 years ago, to me that´s a step in the wrong direction. IMO the K3 is a good enough radio and has enough "things" built in that riding RF gain isn´t needed. / Jim SM2EKM Dave Hachadorian wrote: > - Original Message -

[Elecraft] 6 Meters and TX IMD

2009-01-25 Thread Jan Erik Holm
Elecraft K3 is sold as a "High Performance Radio", this is in print clearly stated on the web page. The 6m RX in K3 can not be called high performance. With a NF of above 10 and MDS as it is. The transmitter on SSB has so poor IMD that it can not be called high performance. ARRL and many others h

Re: [Elecraft] TX IMD

2009-01-26 Thread Jan Erik Holm
ese days or if we > could afford it? > > Question, can you hear IMD off the air or just the artifacts? > > As Wayne said earlier everything is a trade off. > > 73 de jay/w5jay.. > > > - Original Message - > From: "Jan Erik Holm" > Cc:

Re: [Elecraft] New Eham.net K3 review by QRPNEW

2009-01-26 Thread Jan Erik Holm
Bill and others, hold on and think about these figures. -35 to -38 dB IM3 !! We are dealing with 2SC2782 transistors operating at around 12V DC. I say no more, the knowledge and intelligent individual will understand. / Jim SM2EKM - Bill W4ZV wrote: > > "I measured around -35

Re: [Elecraft] TX IMD

2009-01-26 Thread Jan Erik Holm
Yes of course, "however" this cable is supplied by Elecraft and is part of the "high performance" kit. My own PS has a 0.06V drop RX > TX and that is good enough! / SM2EKM --- Alan Bloom wrote: > One factor that affects IMD is power supply voltage variation under > load. The standard PS c

Re: [Elecraft] SSB IMD

2009-01-26 Thread Jan Erik Holm
here, I´m getting reel puzzled and frankly quite tired of this. I wish there would be a "service manual" available, like there is for any Japanese rice box. I mean a manual that contains all data for all adjustments. Why not?? / Jim SM2EKM ------- Joe Subich, W4TV wr

Re: [Elecraft] K3/100 and the PSU

2009-01-27 Thread Jan Erik Holm
Yes I´m beginning to think that K3 is more sensitive to PS then other radios, right now it looks that way. Then this should be in the manual!!! What happens is if I have a bad signal on the bands I will together with Elecraft get a bad reputation. I will of course tell everyone what I´m running and

Re: [Elecraft] K3/100 and the PSU

2009-01-27 Thread Jan Erik Holm
t; It would be interesting to try a better supply cable and also to see if the > 20A cutout has any effect. > > Mike > > Jan Erik Holm wrote: >> Yes I´m beginning to think that K3 is more sensitive to PS >> then other radios, right now it looks that way. >> Then

Re: [Elecraft] K3/100 input voltage and TX IMD

2009-01-27 Thread Jan Erik Holm
Rick, and others Just to clarify things a bit. First of all when I did get the "bad IMD" report on the air I was at a different QTH and used a another PS, in this case I do not know exactly what voltage K3 got or voltage drop. Then I did bring K3 home to a PS that had 13.9V RX and 13.5V at TX, did

Re: [Elecraft] K3 Beta firmware rev. 2.82

2009-02-14 Thread Jan Erik Holm
Conclusion must be, never ever use 5.0W or 50W except when calibration is needed. Why cant power calibration be turned off? Then we would not have this "source for trouble". / SM2EKM Joe Subich, W4TV wrote: > >> So, if I'm tuning up through, say, a Z-Match into a doublet >> and power ou

Re: [Elecraft] How long until K3 is declared the greatest rig...?

2009-02-17 Thread Jan Erik Holm
Darwin, Keith wrote: > Yes, but this isn't about the best performing rig. The KWM-2 certainly > had limits and deficiencies (cost being one of them), yet it left a mark > on ham radio that continues to this day. > This might be true if you think "the world" is "the USA". Speaking for the rest of

Re: [Elecraft] Off Topic question about shortwave broadcasting

2009-02-20 Thread Jan Erik Holm
Info about this: http://www.itu.int/itunews/issue/2003/06/solutions.html 7000-7200 kHz will be exclusive amateur radio and will take place 29 Mar 2009. / Jim SM2EKM --- Tom, N5GE wrote: > On Fri, 20 Feb 2009 16:18:07 +, you wrote: > >> sometime in March - not vacate I think, b

Re: [Elecraft] K3: cw xmiting 2 signals 600hz apart: HELP

2009-02-20 Thread Jan Erik Holm
My findings are be sure to run as high voltage to K3 as possible. Per the manual 15V is the stipulated maximum, run K3 at 14.9V and make sure you have no voltage drop in the cable between K3 and PS. This will give you the best TX performance in respect to IMD. / Jim SM2EKM -- Steve Ell

Re: [Elecraft] New K3 Firmware: Pileup-inspired AGC changes

2009-02-25 Thread Jan Erik Holm
Don Rasmussen wrote: > Anyone care to take a guess as to how long an anomoly like this would live in > any other mass produced HF transceiver? > > My guess - the life of the radio. > > Maybe the Flex guys would get to it. > > With Elecraft, the issue was identified on the weekend, and here it

Re: [Elecraft] Weird EMI issue... part deux

2009-03-02 Thread Jan Erik Holm
I have the same. Also on a number of other places between 0.5 - 30 MHz. Was there any response from Elecraft on this? / SM2EKM N2TK wrote: > James, > I am getting a much lower level of noise than you. With no antenna and the > preamp off, the first bar on the S-meter barely flickers.

Re: [Elecraft] EQP Where's the Buzz?

2009-03-12 Thread Jan Erik Holm
From the rules: Please limit power to 100W maximum. Since I don´t operate at the 100W power level (or lower) does it mean I can´t take part in it? Just let me know and I will not bother. / Jim SM2EKM --- > The Elecraft QSO Party is coming up this Saturday, 14 March. > > http://

[Elecraft] K3 Tuning encoder pulses and birdie problem

2009-03-24 Thread Jan Erik Holm
When 10m opens up this will be a serious problem. On 28005 KHz a quite strong birdie carrier, on each side of this carrier there are "tuning pulses generated from the encoder in the segment 28000 to 28010 KHz. All this gets stronger with Preamp ON. Is it only my K3? Or is this on all of them? An

Re: [Elecraft] K3 Tuning encoder pulses and birdie problem

2009-03-25 Thread Jan Erik Holm
may be experiencing a much greater problem than I am. If > so, you may want to consider making an audio recording of it so that the > rest of us can hear it. > > 73, > Dave AB7E > > > > > Jan Erik Holm wrote: >> When 10m opens up this will be a serious

[Elecraft] K3 RX below 500 kc/s

2009-03-31 Thread Jan Erik Holm
This was on the agenda a while ago. Any progress on it? 73 Jim SM2EKM __ 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

Re: [Elecraft] K3 RX below 500 kc/s

2009-04-01 Thread Jan Erik Holm
Mike-WE0H wrote: > > Frequency stability is extremely important for operating on those LF & > MF bands. > Can´t see why it´s more important on LF then on HF/VHF/UHF however frequency stability is always good. Jim SM2EKM __ Elecraft m

Re: [Elecraft] K3 inline fuse

2010-08-13 Thread Jan Erik Holm
Amen! Best so far. Let´s move on. / James - On 2010-08-13 17:01, David Cutter wrote: > A transistor is the fastest fuse on 3 legs, beats a 2-legged fuse any day. > > David > G3UNA > >> I like to tell the story about a series of tests we did when I worked at >> Fairchild, in >> Silicon

Re: [Elecraft] KPA500

2010-09-10 Thread Jan Erik Holm
Oh lord all mighty, save us from all IMD. This crap is already made by RM Italy. / Jim --- On 2010-09-10 18:59, Edward R. Cole wrote: > ham come up with one? Price ought to be in $125-150 bracket since no > filtering is needed if used with the following KPA500. > > > 73, Ed - KL7UW ___

Re: [Elecraft] Can I use this power supply?

2010-10-05 Thread Jan Erik Holm
maybe or maybe not. Read this: http://www.cometantenna.com/pdf_review/SS-330W_QST_review.pdf Might be a noise issue. If you have it just try it and you will find out. /Jim On 2010-10-05 19:21, John Ragle wrote: >Looks (and specs) just like one I use on my K3/100. Trug gesund! > >

Re: [Elecraft] FM Filter for AM?

2010-10-08 Thread Jan Erik Holm
Yes please do!! Jim On 2010-10-08 18:56, Wayne Burdick wrote: > Bob, > > I could change all of the transmit filter bandwidth restrictions in > firmware, and this is on my list. But it would be a complex change, > and I have to weigh it against many competing firmware change > requests. I

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