Re: [Elecraft] K3 in the marketplace
Whereas I think my old Drake TR-7 had the best UI of any radio I used! Maybe I was just young and naive then, but it was simple to use and a real performer. I have a K3 on order and as I've said before I would willingly pay another $1,000 for a bigger box with bigger knobs and buttons. Simon Brown, HB9DRV - Original Message - From: "Charles Harpole" <[EMAIL PROTECTED]> This reminds me of the Drake TR-7 face design which was a HUGE mistake altho Drake told me that they consulted lots of experts (ex-spurts) and then came up with a look of a consumer stereo. ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Pro 3 already going
As I predicted, market for the used Pro 3 is already in collapse. Nevada Radio used $1399. Charles Harpole [EMAIL PROTECTED] _ Can you find the hidden words? Take a break and play Seekadoo! http://club.live.com/seekadoo.aspx?icid=seek_hotmailtextlink1 ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 in the marketplace
The size of the K3 doesn't bother me, actually it is a benefit to me. It is going to replace my Yaesu FT-857 as my mobile radio. Due to a S-9 noise level problem at my home QTH, operating is almost impossible, so I do all my operating /M. Mark M5MDH ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 size of box knobs: short rant follows
I, for one, am tired of reading about what size knobs/box the K3 should have been. It is what it is. As with most things in life, you have a choice to 1. not buy it at all 2. buy it, use it, hate it, sell it 3. buy it, use it, love it, keep it 4. buy it, evaluate it (GUI and/or circuit quality - there are always pluses and minuses per personal taste), and keep it or sell it Constant discussion about the physical box is, at this point, just so much rhetoric. I always welcome discussion (such as the current topics of PTT for CW or the apparent intended evolution of the AGC), but let's not beat a dead horse. The size of the box won't change because it can't (heck, the first production radio hasn't even rolled out yet). Soapbox rant over. de Doug KR2Q ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] OT: Anyone use a noise canceller?
Hi all, I have a S-9 noise level across the bands and despite some detective work, I have been unable to locate the source. I feel that I may have to resort to using a noise canceller in order to use the bands at the home QTH. Before I purchase one, I'm wondering if any of the subscribers to this list use one and if so, how effective are they? Apologies for the off-topic post but I though I'd canvass opinions before I buy one. Thanks, Mark M5MDH ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] OT: Anyone use a noise canceller?
Hi Mark, I use a Timewave ANC-4 which is very effective against certain types of noise (e.g. my neighbours plasma TV) but not sure about wideband noise - best bet is to see if you can try one on loan). It needed a bit of tweaking with the sense antenna to get the best out of it. Other units to consider are the MFJ one and DX engineering have released on as well. Can't comment of these but if DXE's other products are anything to go by it should be the dog's b's 73 Paul M1PAF -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mark Hampton Sent: 22 September 2007 11:40 To: Elecraft list Subject: [Elecraft] OT: Anyone use a noise canceller? Hi all, I have a S-9 noise level across the bands and despite some detective work, I have been unable to locate the source. I feel that I may have to resort to using a noise canceller in order to use the bands at the home QTH. Before I purchase one, I'm wondering if any of the subscribers to this list use one and if so, how effective are they? Apologies for the off-topic post but I though I'd canvass opinions before I buy one. Thanks, Mark M5MDH ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] OT: Anyone use a noise canceller?
In a recent message, Mark Hampton <[EMAIL PROTECTED]> wrote ... I feel that I may have to resort to using a noise canceller in order to use the bands at the home QTH. Before I purchase one, I'm wondering if any of the subscribers to this list use one and if so, how effective are they? It might be wise to hold off buying one for a while, Mark. I believe there has been discussion on here about the possibility of a noise canceller being built into the K3, possibly as an optional module. That would indeed be very useful for people in situations like your own. 73 -- David G4DMP Leeds, England, UK -- ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Anyone use a noise canceller?
Mark Hampton wrote: I have a S-9 noise level across the bands and despite some detective work, I have been unable to locate the source. Noise cancelers would better be described as interference cancelers. They work by creating a null in the antenna pattern. They cannot suppress thermal or undirected sky noise. As such, if you don't know the direction of the source now, but successfully "noise" cancel it, you will have established some information about the direction, and could, in theory, have used other means to do that more directly. A possible other approach would be to use a separate, receive antenna, positioned for minimum interference. My impression is that noise cancelers only work well at frequencies where external noise and interference dominate receiver noise, so one should not need as efficient an antenna for receive as one does for transmit. Apologies for the off-topic post but I though I'd canvass opinions before I buy one. I've removed the OT tag, as this appears, to me, to be on topic according to the guidelines, which allow more than just Elecraft hardware related articles. -- David Woolley Emails are not formal business letters, whatever businesses may want. RFC1855 says there should be an address here, but, in a world of spam, that is no longer good advice, as archive address hiding may not work. ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] AGC
Any Beta testers on the K3 have any comments on how there agc reacts to noise as compared to older analog rigs? Any "overreaction" to spikes by the agc? I've been told by various people radios such as the 7800, etc. that this is an issue. In fact Rob Sherwood had some posts on a reflector discussing this. He was stating that this is in all newer dsp radios. I know it is on several newer radios I own. It's not real bad but is noticeable. Static crashes on the bands can be annoying. Randy W8RAN ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] OT: Anyone use a noise canceller?
Hi Mark. The noise canceling units use phase inversion to cancel noise. They work okay on noise coming from a singe point source. However, they don't seem to work well on noise generated from multiple sources or a spread out source as noise will then arrive in different phases. DX Engineering's '2 Channel' feature might allow canceling from a second source, but that's a bit beyond my understanding. If it is possible to determine the type of noise you are receiving, you may save yourself some money. Some investigation with some noise detecting equipment (if you don't have to pay for the equipment) may be fruitful. Regards, Dick - KA5KKT/4 ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] OT: Anyone use a noise canceller?
Mark, I would get a hold of your power company and ask for the Ghost Squad. Here is the Wichita Kansas area there is a dedicated truck and two guys that look for power line noise from anywhere. They will track it down to a pole...and fix itor they will track it down to a house and tell you where it is coming from. I think that most power companies worth their salt have a Ghost Squad that tracks these things down. I had the problem tooand they found quite a few bad poles. The crew fixed it pronto because they are wasting power before it gets to the meter so you have to pay for it. I have a quite location now right in town. Lee - K0WA In our day and age it seems that Common Sense is in short supply. If you don't have any Common Sense - get some Common Sense and use it. If you can't find any Common Sense, ask for help from somebody who has some Common Sense. Is Common Sense divine? ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 in the marketplace
I'll say this and then be quiet. I find phrases like the following to be extremely offensive: "designers had K2-its" "human factor... so often ignored by purist engineers..." "attacks from rabid fans" "experts (ex-spurts)" "Real engineers seem to stall out when they try to confront intangible human factors" "toy sized" I don't see what the point is in these comments. If you don't like a product - any product - just don't buy it. That's one of the great things about ham radio: we don't have to buy any particular thing, and we have lots of choices. KR2Q stated the choices perfectly, dittoes to what he wrote. Please - it's enough to say "I prefer A over B". The derogatory comments about engineers, toys, experts, rabid fans, etc. are really, really offensive. "The K3 has jumped Elecraft into the arena of the ORION 2, FT-9000 and IC-7800 and great specs are great, but.This means they can still be beaten in the marketplace when their specs indicate they should be the only hi end rig of choice." How much do each of those other rigs cost? Can you leave out features you don't find essential to lower the price, then add them later if you want to? For me, a 100 watt K3 kit with ATU and one optional roofing filter would be the starting point. Priced at about *half* of an Orion II with ATU. Put every available option in the K3 and its price will not reach 75% of the price of an Orion II with ATU. And the Orion II is much lower priced than the FTdx-9000 or the IC-7800. Elecraft's game has always been to produce high performance rigs (not "toys" - RIGS!) that are uniquely different from what's on the market, at a lower price and with much more owner involvement. That their products could even be considered competition to rigs costing so much more simply amazes me. Sorry for the rant, thanks for the BW 73 de Jim, N2EY ** See what's new at http://www.aol.com ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 prefromance on 6 meters
Hello Gang, Has any of the Field testers used the K3 on 6 meters, and if so how did it perform. Beside its HF features I am planning on using it mostly for 6 meters, I have a lot of big gunners here in Tampa bay area and would like to see how the receiver handles close station that run a Kilowatt or so on Six Meters. Thanks Ed, Wp4o/4 Tampa, Fl ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] OT: Anyone use a noise canceller?
Hi Mark If you cannot locate the noise source, can you at least determine it's direction from you? A simple untuned loop should allow you to do that. An antenna noice canceller (ANC) works best if you can get a pickup antena as close as possible to the source, relative to the communication antenna, even if it is just to the edge of your property. I have both the ANC-4 and the MFJ-1026, and they both work well on a single noise source. They can't cope with multiple noise sources, though, or a single source spread out over an area, such a power line that is radiating along its length. Good luck and 73 Bob N6WG - Original Message - From: "Mark Hampton" <[EMAIL PROTECTED]> To: "Elecraft list" Sent: Saturday, September 22, 2007 3:39 AM Subject: [Elecraft] OT: Anyone use a noise canceller? Hi all, I have a S-9 noise level across the bands and despite some detective work, I have been unable to locate the source. I feel that I may have to resort to using a noise canceller in order to use the bands at the home QTH. Before I purchase one, I'm wondering if any of the subscribers to this list use one and if so, how effective are they? Apologies for the off-topic post but I though I'd canvass opinions before I buy one. Thanks, Mark M5MDH ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 prefromance on 6 meters
On Sat, Sep 22, 2007 at 09:17:21AM -0400, Ed Rodriguez wrote: > Hello Gang, Has any of the Field testers used the K3 on 6 meters, and if so > how did it perform. Beside its HF features I am planning on using it mostly > for 6 meters, I have a lot of big gunners here in Tampa bay area and would > like to see how the receiver handles close station that run a Kilowatt or so > on Six Meters. I have used it a little on six meters - didn't get it in time for the June VHF contest. Didn't see any issues - but not sure if I recreated your environment. Based upon the HF performance and the fact that there really isn't anything very different on six - I think it will be very good. Tree N6TR ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] OT: Anyone use a noise canceller?
Bob Wonder if you (or anyone) has mixed the outputs from 2 or more noise cancellers, perhaps using different antennas for each. David G3UNA - Original Message - From: "Robert Tellefsen" <[EMAIL PROTECTED]> To: "Mark Hampton" <[EMAIL PROTECTED]>; "Elecraft list" Sent: Saturday, September 22, 2007 2:36 PM Subject: Re: [Elecraft] OT: Anyone use a noise canceller? Hi Mark If you cannot locate the noise source, can you at least determine it's direction from you? A simple untuned loop should allow you to do that. An antenna noice canceller (ANC) works best if you can get a pickup antena as close as possible to the source, relative to the communication antenna, even if it is just to the edge of your property. I have both the ANC-4 and the MFJ-1026, and they both work well on a single noise source. They can't cope with multiple noise sources, though, or a single source spread out over an area, such a power line that is radiating along its length. Good luck and 73 Bob N6WG - Original Message - From: "Mark Hampton" <[EMAIL PROTECTED]> To: "Elecraft list" Sent: Saturday, September 22, 2007 3:39 AM Subject: [Elecraft] OT: Anyone use a noise canceller? Hi all, I have a S-9 noise level across the bands and despite some detective work, I have been unable to locate the source. I feel that I may have to resort to using a noise canceller in order to use the bands at the home QTH. Before I purchase one, I'm wondering if any of the subscribers to this list use one and if so, how effective are they? Apologies for the off-topic post but I though I'd canvass opinions before I buy one. Thanks, Mark M5MDH ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] OT: Anyone use a noise canceller?
No, David, can't say I've done that. I don't think it would be too successful, though, because when you tune away from the frequency where you have nulled a noise source, it comes back. The null will only hold over a certain frequency spread, sepending on the band. Then you have to redo the null. So with two nulls on two sources, when you move into one null you would be moving out of another. The noise might not show any improvement overall. 73, Bob N6WG - Original Message - From: "David Cutter" <[EMAIL PROTECTED]> To: "Elecraft list" Sent: Saturday, September 22, 2007 7:08 AM Subject: Re: [Elecraft] OT: Anyone use a noise canceller? > Bob > > Wonder if you (or anyone) has mixed the outputs from 2 or more noise > cancellers, perhaps using different antennas for each. > > David > G3UNA > > > - Original Message - > From: "Robert Tellefsen" <[EMAIL PROTECTED]> > To: "Mark Hampton" <[EMAIL PROTECTED]>; "Elecraft list" > > Sent: Saturday, September 22, 2007 2:36 PM > Subject: Re: [Elecraft] OT: Anyone use a noise canceller? > > > > Hi Mark > > If you cannot locate the noise source, can you at least > > determine it's direction from you? A simple untuned > > loop should allow you to do that. > > An antenna noice canceller (ANC) works best if you > > can get a pickup antena as close as possible to the > > source, relative to the communication antenna, even > > if it is just to the edge of your property. > > I have both the ANC-4 and the MFJ-1026, and they > > both work well on a single noise source. They can't > > cope with multiple noise sources, though, or a single > > source spread out over an area, such a power line > > that is radiating along its length. > > Good luck and 73 > > Bob N6WG > > > > - Original Message - > > From: "Mark Hampton" <[EMAIL PROTECTED]> > > To: "Elecraft list" > > Sent: Saturday, September 22, 2007 3:39 AM > > Subject: [Elecraft] OT: Anyone use a noise canceller? > > > > > > Hi all, > >I have a S-9 noise level across the bands and despite some > > detective > > work, I have been unable to locate the source. > > > > I feel that I may have to resort to using a noise canceller in order to > > use > > the bands at the home QTH. > > > > Before I purchase one, I'm wondering if any of the subscribers to this > > list > > use one and if so, how effective are they? > > > > Apologies for the off-topic post but I though I'd canvass opinions before > > I > > buy one. > > > > Thanks, Mark M5MDH > > ___ > > 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: http://mailman.qth.net/subscribers.htm > > Elecraft web page: http://www.elecraft.com > > > > ___ > > 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: http://mailman.qth.net/subscribers.htm > > Elecraft web page: http://www.elecraft.com > > ___ > 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: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Anyone use a noise canceller?
Mark Hampton wrote: I have a S-9 noise level across the bands and despite some detective work, One other thing to consider is whether the interference is actually coming in on the "earth" connection. With the K2, on 80m, I find that the noise drops drastically when I disconnect from the mains power supply (a very old one that has high leakage and therefore needs to be earthed and the secondary side) and run on a battery. It drops from about S9 to about S2 (although my S meter calibration is suspect). This is using a crude indoor doublet, with a BL-1 and with a clamp on ferrite ring on five or six turns of the DC supply cable. My impression is that the BL-1 isn't terribly effective on an electrically short (about 10m either side, although not in a straight line) antenna at 80m, even though the KAT-2 can tune it. I'm going to have to do more research on indoor antennas. I'm in a first floor flat and running a separate functional (RF) earth is not possible, and it would be electrically long if I ran it, anyway. Note, make sure that you understand the issues about protective multiple earthing, and know how your electricity supply is done, before providing any alternative earthing. -- David Woolley Emails are not formal business letters, whatever businesses may want. RFC1855 says there should be an address here, but, in a world of spam, that is no longer good advice, as archive address hiding may not work. ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] 3B7C
Dear list members, Worked (and confirmed in their on-line log) 3B7C this week on 17 & 20 m, with my K2, (QRP only), output 5 Wtts, antenna 2-el Cub. Quad at abt. 8 meters (24 ft) high. They were only S2-S3 overhere.at abt. 14:00 hrs UTC. They sure have good "ears" and good operators on the island. I also heard them on 30, 40 & 80 m but could not break the pile-up. 73/72, Rob, PA0RBO K2 #2406. ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] OT: Anyone use a noise canceller?
Mark Hampton wrote: Hi all, I have a S-9 noise level across the bands and despite some detective work, I have been unable to locate the source. I feel that I may have to resort to using a noise canceller in order to use the bands at the home QTH. Before I purchase one, I'm wondering if any of the subscribers to this list use one and if so, how effective are they? Apologies for the off-topic post but I though I'd canvass opinions before I buy one. I have the MFJ. It is quite effective for noises generated by nearby sources, although you have to fiddle with the knobs a bit for each individual noise. The biggest problem is that it has to be in the line to the antenna and has to switch itself in and out on receive/transmit. This may not be a big problem with PTT SSB, but it's a bother on CW and pretty much prevents QSK -- unless you have a rig like the K3 with KXV3 which has receiver antenna in and out connections. -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] AGC
Randy Downs wrote: Any Beta testers on the K3 have any comments on how there agc reacts to noise as compared to older analog rigs? Any "overreaction" to spikes by the agc? I've been told by various people radios such as the 7800, etc. that this is an issue. In fact Rob Sherwood had some posts on a reflector discussing this. He was stating that this is in all newer dsp radios. I know it is on several newer radios I own. It's not real bad but is noticeable. Static crashes on the bands can be annoying. The K3 has an AGCP (AGC Pulse) function which is designed to solve this problem. It is adjustable for the length and amplitude of pulse widths that are to be considered noise, and which should *not* trigger AGC. I have tested it (at least in the beta firmware you can turn it on and off) and it is very effective. -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K2 Mic
Forward by DC0ZO Dear all, I want to order a Heil Proset. Which mircophone ist th e best one for the k2? You can buy the Prosets with HC4, HC5, ICOM or elecraft mic. Where is the difference? Thanks for your answer Michael, DC0ZO, K2#5619 ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Pro 3 already going
Charles wrote: As I predicted, market for the used Pro 3 is already in collapse. Nevada Radio used $1399. Charles Harpole k4vud at hotmail.com Read closer. That's UK Pounds sterling, -not- US dollars. Multiply times two. -Bruce N1RX ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 Audio Files 75m ssb
Tree, Wearing headphones, the 75m audio sounds different if I pull one of the earplugs away. Is the AF simply mono being routed to both sides of the headset? --- [Elecraft] More K3 Audio Files I'm not certain if it's because it's recorded in 2 channels or not, but this audio is distinctive and pretty exciting. Especially the 75m demo. Thanks Tree! [Elecraft] More K3 Audio Files Tree tree at kkn.net Thu Sep 20 23:18:54 EDT 2007 Previous message: [Elecraft] Fwd: K3 and phase noise Next message: [Elecraft] K3 - Sweet sidetone! I started putting some K3 audio up in this directory: http://www.kkn.net/~tree/K3Audio/ The second file is some of the CW Sprint with the K3 on 20 meters. Enjoy. Tree N6TR ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 Audio Files 75m ssb
On Sat, Sep 22, 2007 at 08:57:20AM -0700, Don Rasmussen wrote: > Wearing headphones, the 75m audio sounds different if > I pull one of the earplugs away. Is the AF simply mono > being routed to both sides of the headset? You are listening to stereo. This is one of the audio effects currently available in the radio (there will be more in the future). In this recording, I am using the AFX MD 5 setting - which is some amount of delay from one channel to the next. This seems to make it easier for me to copy weak signals in the noise. Tree ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Pro 3 already going
Sorry Charlie, Nevada Radio is on the other side of the pond: 1399 --pounds--. $2,827. New price US is around $2700. New UK prices seem to be around £1,749.95. Collapse? NU6T Rich -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Charles Harpole Sent: Saturday, September 22, 2007 1:55 AM To: elecraft@mailman.qth.net Subject: [Elecraft] Pro 3 already going As I predicted, market for the used Pro 3 is already in collapse. Nevada Radio used $1399. Charles Harpole [EMAIL PROTECTED] _ Can you find the hidden words? Take a break and play Seekadoo! http://club.live.com/seekadoo.aspx?icid=seek_hotmailtextlink1 ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 and noise canceller
If you do have a substantial single point noise source (like my Maytag front loading washer) and have an ANC4 or MFJ1026 that works for you, the K3 will allow you QSK CW (K3 needs transverter option) where other transceivers that don't have this feature will rely on an RF sensing relay in the noise cancelling unit. That ruins your QSK and requires you to match the RF sense duration control on the noise canceller to the semi break in delay at the transceiver. I have a dipole in my attic dedicated as a noise receiver for the MFJ1026, works FB. [Elecraft] OT: Anyone use a noise canceller? Mark Hampton area.x1 at btinternet.com Sat Sep 22 06:39:43 EDT 2007 Previous message: [Elecraft] K3 size of box knobs: short rant follows Next message: [Elecraft] OT: Anyone use a noise canceller? Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] Hi all, I have a S-9 noise level across the bands and despite some detective work, I have been unable to locate the source. I feel that I may have to resort to using a noise canceller in order to use the bands at the home QTH. Before I purchase one, I'm wondering if any of the subscribers to this list use one and if so, how effective are they? Apologies for the off-topic post but I though I'd canvass opinions before I buy one. Thanks, Mark M5MDH ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 Audio Files 75m ssb
That's just amazing. It sounds so much richer that way. I am so wanting to get a K3 in my hands. !!! I'll be interested to see if the same effect is noticable using speakers. - [Elecraft] K3 Audio Files 75m ssb On Sat, Sep 22, 2007 at 08:57:20AM -0700, Don Rasmussen wrote: > Wearing headphones, the 75m audio sounds different if > I pull one of the earplugs away. Is the AF simply mono > being routed to both sides of the headset? You are listening to stereo. This is one of the audio effects currently available in the radio (there will be more in the future). In this recording, I am using the AFX MD 5 setting - which is some amount of delay from one channel to the next. This seems to make it easier for me to copy weak signals in the noise. Tree ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 Audio Files 75m ssb
On Sat, Sep 22, 2007 at 09:18:05AM -0700, Don Rasmussen wrote: > That's just amazing. It sounds so much richer that > way. I am so wanting to get a K3 in my hands. !!! It is really cool. Speakers will work if you have your head in the middle. Tree ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] OT: Anyone use a noise canceller?
Yes, I appreciate that controls have to be adjusted for each QSY, but when trying to hear that weak signal amongst QRM you would be on one frequency and spend time to set up the controls, (eg 3B7C). It seems intuitive to me that with more than one rx antenna and mixers it should be possible to null more than one signal. David G3UNA - Original Message - From: "Robert Tellefsen" <[EMAIL PROTECTED]> To: "David Cutter" <[EMAIL PROTECTED]>; "Elecraft list" Sent: Saturday, September 22, 2007 3:44 PM Subject: Re: [Elecraft] OT: Anyone use a noise canceller? No, David, can't say I've done that. I don't think it would be too successful, though, because when you tune away from the frequency where you have nulled a noise source, it comes back. The null will only hold over a certain frequency spread, sepending on the band. Then you have to redo the null. So with two nulls on two sources, when you move into one null you would be moving out of another. The noise might not show any improvement overall. 73, Bob N6WG - Original Message - From: "David Cutter" <[EMAIL PROTECTED]> To: "Elecraft list" Sent: Saturday, September 22, 2007 7:08 AM Subject: Re: [Elecraft] OT: Anyone use a noise canceller? Bob Wonder if you (or anyone) has mixed the outputs from 2 or more noise cancellers, perhaps using different antennas for each. David G3UNA - Original Message - From: "Robert Tellefsen" <[EMAIL PROTECTED]> To: "Mark Hampton" <[EMAIL PROTECTED]>; "Elecraft list" Sent: Saturday, September 22, 2007 2:36 PM Subject: Re: [Elecraft] OT: Anyone use a noise canceller? > Hi Mark > If you cannot locate the noise source, can you at least > determine it's direction from you? A simple untuned > loop should allow you to do that. > An antenna noice canceller (ANC) works best if you > can get a pickup antena as close as possible to the > source, relative to the communication antenna, even > if it is just to the edge of your property. > I have both the ANC-4 and the MFJ-1026, and they > both work well on a single noise source. They can't > cope with multiple noise sources, though, or a single > source spread out over an area, such a power line > that is radiating along its length. > Good luck and 73 > Bob N6WG > > - Original Message - > From: "Mark Hampton" <[EMAIL PROTECTED]> > To: "Elecraft list" > Sent: Saturday, September 22, 2007 3:39 AM > Subject: [Elecraft] OT: Anyone use a noise canceller? > > > Hi all, >I have a S-9 noise level across the bands and despite some > detective > work, I have been unable to locate the source. > > I feel that I may have to resort to using a noise canceller in order to > use > the bands at the home QTH. > > Before I purchase one, I'm wondering if any of the subscribers to this > list > use one and if so, how effective are they? > > Apologies for the off-topic post but I though I'd canvass opinions before > I > buy one. > > Thanks, Mark M5MDH > ___ > 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: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com > > ___ > 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: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 Audio Files 75m ssb
This is one of those new features that will make working 160 through 40 more fun with the new radio while waiting for the MUF to rise over the next couple of years. [Elecraft] K3 Audio Files 75m ssb On Sat, Sep 22, 2007 at 09:18:05AM -0700, Don Rasmussen wrote: > That's just amazing. It sounds so much richer that > way. I am so wanting to get a K3 in my hands. !!! It is really cool. Speakers will work if you have your head in the middle. Tree ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 Audio Files 75m ssb
Hi Tree L:istening to the ssb audio, I could hear the static crashes in the background. Do any of the noise reduction features make a dent in the crashes yet? 73, Bob N6WG - Original Message - From: "Tree" <[EMAIL PROTECTED]> To: "Don Rasmussen" <[EMAIL PROTECTED]> Cc: "Elecraft" Sent: Saturday, September 22, 2007 9:19 AM Subject: Re: [Elecraft] K3 Audio Files 75m ssb > On Sat, Sep 22, 2007 at 09:18:05AM -0700, Don Rasmussen wrote: > > > That's just amazing. It sounds so much richer that > > way. I am so wanting to get a K3 in my hands. !!! > > It is really cool. Speakers will work if you have your head in the > middle. > > Tree > ___ > 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: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 Audio Files 75m ssb
On Sat, Sep 22, 2007 at 09:28:13AM -0700, Robert Tellefsen wrote: > L:istening to the ssb audio, I could hear the static > crashes in the background. Do any of the noise > reduction features make a dent in the crashes > yet? The honest answer is that I don't know yet. There is some neato noise reduction stuff being worked on and I understand the first version of it is available - but I have to get an upgrade of my DSP hardware to the production version before I can test it here. Tree ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] TenTec 405 Schematic
Anyone out there have a schematic for a TenTec 405 amplifier. I have one needing repair that I'd like to mate up to my K-2. Terry W8EJO ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K2 Mic
Don Rasmussen wrote: Forward by DC0ZO Dear all, I want to order a Heil Proset. Which mircophone ist th e best one for the k2? You can buy the Prosets with HC4, HC5, ICOM or elecraft mic. Where is the difference? I use a two-lead electret element (Radio Shack) wired for Icom . My K2 mic input is configured for Icom pin-outs and has a 5.6K resistor to provide power to the electret's built-in FET preamp. The mic provides plenty of output to drive the AF and VOX circuits without any mods to the rig. The Heil HC4/5 elements are dynamic types that produce about 10dB less output than most other dynamic mics and usually require the use of a preamp to drive the K2. I know some K2 operators have had success with them, but I have to shout to make them work with my K2. Gus Hansen KB0YH ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 Audio Files 75m ssb
Thanks, Tree. Really eager to see how it works out. 73, Bob N6WG - Original Message - From: "Tree" <[EMAIL PROTECTED]> To: Sent: Saturday, September 22, 2007 9:29 AM Subject: Re: [Elecraft] K3 Audio Files 75m ssb > On Sat, Sep 22, 2007 at 09:28:13AM -0700, Robert Tellefsen wrote: > > > L:istening to the ssb audio, I could hear the static > > crashes in the background. Do any of the noise > > reduction features make a dent in the crashes > > yet? > > The honest answer is that I don't know yet. There is some neato noise > reduction stuff being worked on and I understand the first version of > it is available - but I have to get an upgrade of my DSP hardware to > the production version before I can test it here. > > Tree > ___ > 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: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Anyone use a noise canceller?
A different approach that is often very effective is to use a separate on-ground antenna for receiving! QRN is greatly attenuated at ground level, much more than signals arriving from overhead. So, while the overall signal levels are much lower at ground level, the signal to noise ratio is greatly improved! Such antennas are terrible radiators, so you need a rig that can provide an independent antenna input for receiving. The K3 and K3 provide for separate receiving antennas. On-ground antennas typically show 15 to 20 db lower signal levels than in-air antennas. That's over 3 S-units, but it's easily made up for by the low-noise preamplifiers in the Elecraft rigs. One common form for such an on-ground antenna is to use some 50-ohm coaxial line. Put it on the ground (or bury it, but if you do that it's smart to put it inside a plastic pipe to keep rocks in the soil from pushing on the coax until they break through the jacket). The coax can be any length but, as you might guess, longer is better. (Extreme lengths of several wavelengths laid out in a straight line will show directivity, just like a long-wire in the air). You can either short the far end of the coax or you can terminate the far end with a 50-ohm resistor. If you short the far end you need to make sure the coax is *not* electrically a 1/2 wave (or multiple thereof) long. That's because a half-wave line repeats the impedance at the far end at the rig. If you have far end of an electrically half-wave line is shorted, you'll see a "short" at the rig! That's not a concern with a 50-ohm termination at the far end. Doug DeMaw, W1FB (SK) made a cheaper version from two-conductor "speaker" wire that he said worked very well. Probably any weatherproof "zip" cord would work. He found a terminating resistor of about 210 Ohms worked nicely and he used a balun at the rig end to remove common-mode signals flowing along the two conductors. A length of coax connected the balun to his rig. Ron AC7AC ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Anyone use a noise canceller?
Hello David etc, When you use two noise cancellars to get rid of two noise sources, either noise will be present at the output of one of the two cancellars, so nothing is gained. On an other note, as a lot of local noise is common mode noise, the first thing to do is to establish if this is the case or not. Noise can also be picked up on the shield of the coaxial feedline. I am using a battery operated receiver outdoors for this purpose as a lot of noise is contained inside a building. Roelof Bakker, pa0rdt Middelburg, Netherlands JO11tm -- Mijn Postvak In wordt beschermd door SPAMfighter. 386 spam-mails zijn er tot op heden geblokkeerd. Download de gratis SPAMfighter via deze link: http://www.spamfighter.com/lnl ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K2 Mic
Hallo Don, I use the Heil Proset Plus which has the HC4 & HC5 elements. I like to ragchew and I like to contest and work DX, so I use both elements depending on the situation. When contesting for smaller contests such as the upcoming 50th anniversary of the PA QSO Party on the 2nd weekend of October (shameless plug, http://www.nittany-arc.net/paqso.html) I use the HC5 and then switch over to the HC4 as the band conditions get more crowded or I want to try to work that "rare" county for an extra multiplier. I use the Elecraft K2 and have gotten good audio reports with it, but not as consistently as when I used to run an old Kenwood TS-820S with a Shure AMB-75 microphone (DX stations often would comment how good my audio was with that combination, plus the "room presence" that occurred at that particular location, a bit of extra "echo" from the hard concrete walls, I suspect). I did change one resistor, though, to increase the microphone gain when using the Heil microphones with the K2. I think it was R14 on the SSB board, and I changed it by a factor of 10 (although I don't recall the original or new values right now, but it has been documented here on the Elecraft site). Viele Glueck! Mark, NK8Q Don Rasmussen wrote: Forward by DC0ZO Dear all, I want to order a Heil Proset. Which mircophone ist th e best one for the k2? You can buy the Prosets with HC4, HC5, ICOM or elecraft mic. Where is the difference? Thanks for your answer Michael, DC0ZO, K2#5619 ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Thoughts about K2 freq shift & FINE RIT...
I've really loved the K2 since getting one second hand back in July. I've added the KPA100, KSB2 and the K160RX options. But there is one really sore point with me. That is the small frequency shift when changing filters. It is not a big issue when using CW or SSB. I can live with that. But it is a real sore point with the digital modes. To be fair, I was aware of this before building the KSB2 option. I didn't except to get back into the digital modes again, and have mostly been on CW the past few months. I have other rigs for digital use, but the K2 receiver is really fantastic. I understand there is a FINE RIT feature that can correct this frequency shift. I have the RTTY mode filters set up as: FL1 OP1 FL2 1000 Hz FL3 500 Hz FL4 250 Hz These cover most of my digital needs, depending on which mode. The common fix for this problem is to use the tx frequency lock feature in most of the digital comm software. Can I assume that the tx and rx frequencies will match if I use the same filter for tx and rx? In my case, this would be the OP1 filter. I could tune to the other station's frequency in FL1 (OP1), before locking the tx frequency in the software. Once I lock the tx frequency, I should be free to choose a narrower filter for rx. Again, can I assume the tx and rx frequencies will be matched if I use the tx filter? Next I'd like to ask about FINE RIT. A reading of the manual and this reflector tells me there are a number of variables affecting FINE RIT. It has a finer frequency correction on the lower bands. And the shift amount could change even within the same band. Also the FINE RIT correction needed may change from filter to filter. How can I determine the correct FINE RIT value needed for each band / filter width combination? It would help if I had a stable frequency source for each band and frequency in question. The XG1 only works at 7.040 MHz, plus harmonics. 7.070 is a popular digital frequency. I don't know if the frequency shift will vary much on 40 meters when 30 kHz apart. The other bands are 80, 30, and 20 meters right now. My goal is too make up a little chart telling me what FINE RIT value to use with each band / filter width combination. It would still be a hassle, but I could live with it, if it corrects my shift when using narrower filters. The other digital gotcha with the K2/100 is the heat sink. I've been able to get a large 4 inch muffin fan on top of the KPA100 heat sink and easily run 50 watts without excessive heating. It also helps some to keep in the internal fan set to HI, but then I have to set it back to NOR when I am not transmitting digital signals. It even gets warm when running CW at full power, but not too bad. Thanks in advance for any suggestions or comments! 73, Steve N6VL K2/100 #2289 ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Anyone use a noise canceller?
David Cutter wrote: and spend time to set up the controls, (eg 3B7C). It seems intuitive to me that with more than one rx antenna and mixers it should be possible to null more than one signal. It's not that intuitive. The sense antenna inputs will combine linearly, which means that if you just control phase and amplitude, the combination will be a third combination of them, not both simultaneously. If you want to cancel both simultaneously, you will have to find two other variables, which would in practice, have to be the antenna locations (x and y). As the effect would be in wavelengths, you would have to move at least one sense antenna with frequency. You need two independent parameters for each simultaneously cancelled source. Getting the sense antennas close to the two sources will help, as once you attenuate the sense signal to match the main signal, it will re-introduce relatively little of the other interfering signal which will not originate close to that sense antenna. -- David Woolley Emails are not formal business letters, whatever businesses may want. RFC1855 says there should be an address here, but, in a world of spam, that is no longer good advice, as archive address hiding may not work. ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 in the marketplace
I'd sure try out the NB in the K3 and letting the rest of us know how it does with the noise prob. Do you have a good handle on the source of the noise? ( I used to live 100yds from the main steel towers (270KV) going into Los Angeles, and they were about S7 when clean) Al WA6VNN ** See what's new at http://www.aol.com ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] KPA100/KAT100 trouble
I may be having my first run-in with lightning damage. A thunderstorm rolled through the SF Bay Area last night. I didn't disconnect my antennas until I *saw* the first lightning flash. Oops, I think. I turned on the radio later in the evening, and was getting very high SWR indications on the KAT100, and HiCur on the K2. Hitting TUNE caused a lot of clicking and clacking, and eventual tune to about 1.5:1, but SWR was still high on transmit - and the indicated power on the bargraph was lower than dialed in. This is on both antennas - a vertical and OCF dipole - both more or less resonant. I turned off the rig and called it a night. This morning I pulled out my LP200 dummy load/power meter. The ATU tunes it to 1.1:1. Power out does not change appreciably in response to the POWER knob - if set for any value less than 10W, the power is about 4W; if set for values about 10W (PA on), power out is always about 30W. In neither case is the LED indication on the K2 correct. I also notice that the SWR LEDs no longer display anything when the power is set below 10W, but indicate as expected when POWER is above 10W. If I put the ATU into CAL mode, which I understand removes all the LC network, the SWR LEDs indicate 5:1 (all on), and the power out is higher, but still doesn't respond to the POWER knob: 10W on LOW mode, about 90W in HIGH mode. Connected to the K2/KAT2 (with the serial cable disconnected) the K2 operates as expected (once I remember to turn the ATU back to AUTO :-) I'm not even sure where to begin looking, but it certainly seems that the SWR bridge might be malfunctioning. Help? Thanks! 73 de chris K6DBG ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] 6/ 10 meter repeater operation and ctcss ability
Hello Eric or Wayne: We know that your both extremely busy but we had a couple of questions. In looking through the FAQ and some of the other documentation that has been posted I and another buyer of the radio have 2 questions. Offset control on both 6/10 (use both VFO's ?) meters and the ability to set CTCSS. We are curious as we do not see anything concerning this and have several local repeaters in Southern California. Thanks 73's Bob/ Bill KK6UE/KF6GJH Got a little couch potato? Check out fun summer activities for kids. http://search.yahoo.com/search?fr=oni_on_mail&p=summer+activities+for+kids&cs=bz ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Seeing a K in person?
I'm in the Seattle area and Would like to see one in person, if Possible. Thanks in advance Dave Stehman N4DAG ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Thoughts about K2 freq shift & FINE RIT...
Steve Kallal wrote: I understand there is a FINE RIT feature that can correct this frequency shift. I have the RTTY mode filters set up as: I would say the RIT steps were part of the problem, rather than part of cure, but basically you will need frequency measuring equipment with 1Hz or better resolution. Next I'd like to ask about FINE RIT. A reading of the manual and this reflector tells me there are a number of variables affecting FINE RIT. It has a finer frequency correction on the lower bands. And the shift amount If I understand how it works, this should read bands with lower local oscillator frequencies, rather than lower bands. I'm not sure that the two are the same. could change even within the same band. Also the FINE RIT correction needed may change from filter to filter. It will cycle over about every 5kHz (need to check the manual to find the actual value), with an overall drift over a wider frequency range. What happens is that a stepped voltage is applied to the PLL frequency reference to interpolate between the 5kHz (?) steps of the PLL. The actual step in the reference frequency will vary because the varactor control voltage to frequency curve is non-linear, so different steps will occur at different points in the 5kHz (?) tweaking range. Each step will be multiplied by the ratio between the local oscillator frequency and the reference frequency, so higher local oscillator frequencies will result in larger steps. On the other hand, a smaller control voltage range will be needed, so the varactor characteristics will be more linear and one may be able to select a part of the range that supports relatively small steps, whereas, for low local oscillator frequencies one would need a larger range, so might end up with some quite small steps at one end of the range. There will also be a variability because the the actual BFO frequencies are not exact round frequencies, but depend on the result of applying different control voltages to the varactors. That means there will be an additional error due to the resolution of the frequency counter, and, I think to any change in the 4MHz frequency since the CAL PLL was run. I think that is 10kHz. How can I determine the correct FINE RIT value needed for each band / filter width combination? You need the output from CAL PLL, unfortunately that's not available externally. You also need to measure the BFO frequency more accurately than the RIT step size. That probably means you need to use an external frequency counter, with 1Hz, or better, resolution popular digital frequency. I don't know if the frequency shift will vary much on 40 meters when 30 kHz apart. The other bands are 80, 30, and 20 meters right now. The variation across the band will be the result of RIT step resolution, so not correctable by RIT, although the number of RIT steps needed to correct the BFO frequency measurement error will vary, but will tend to cycle over whatever is the intrinsic PLL frequency step. -- David Woolley Emails are not formal business letters, whatever businesses may want. RFC1855 says there should be an address here, but, in a world of spam, that is no longer good advice, as archive address hiding may not work. ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] 3B7C
Congratulations to you Rob ! I worked them also with K2/5w on 30/20/17m CW. de aki, ja1nlx - Original Message - From: "Robert Boerhorst" <[EMAIL PROTECTED]> To: "Elecraft" Sent: Saturday, September 22, 2007 11:56 PM Subject: [Elecraft] 3B7C Dear list members, Worked (and confirmed in their on-line log) 3B7C this week on 17 & 20 m, with my K2, (QRP only), output 5 Wtts, antenna 2-el Cub. Quad at abt. 8 meters (24 ft) high. They were only S2-S3 overhere.at abt. 14:00 hrs UTC. They sure have good "ears" and good operators on the island. I also heard them on 30, 40 & 80 m but could not break the pile-up. 73/72, Rob, PA0RBO K2 #2406. ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] an as-yet undetailed (that I can see) K3 spec
I wish there was a good way to know what the fans sound like in the K3/100. Ironically, here at home I actually have an acoustic anechoic chamber (don't ask) and could make such a measurement ... if I had a suitable calibrated microphone, that is. I wonder if Spectrogram or some other sound-graphing program would be able to electronically normalize an electret for flatness? Maybe somebody will send me a K3 so I can publish the acoustic test results. Ha! Beyond issues of visual/tactile UI (which has been nearly beat to death), one of the things that bothers me about many rigs is the racket they make. TenTec has that down; no fan needed except for high-duty-cycle modes, and my own personal experience shows that this is really not needed. This is one big reason I'm leaning towards replacing my (fairly noisy) almost 8 year old K2/100 with an Omni VII. I really didn't like the constant fan noise from the Icom 756proII I had and the proIII is no better; the '756 receivers are not at par so they are out of the picking. I don't 'do' Yaesu even if they had a decent rig, and Kenwood doesn't have a rig that is worth buying, either. The new FlexRadio fan sounded VERY loud to me (at Dayton!!), and I don't fancy a radio without knobs anyway. I modified my PC to all but eliminate the noise it makes. So I do have a quiet shack and I like it that way. I don't wear headphones. At Dayton, the din of the room made it hard to hear Wayne talk, much less hear the K3. So ... Are there two fans on the K3, or just on the K3/100? When do the two fans come on? Do they both run together, or sometimes just one? If just one, does the other spin freely? Is the speed variable? If so, how is it controlled? Can you set the trip points for when they (each or both) come on and off, or speed up and slow down? Can you set it so the fan doesn't come on at all in QRP 'mode' ? Got a little couch potato? Check out fun summer activities for kids. http://search.yahoo.com/search?fr=oni_on_mail&p=summer+activities+for+kids&cs=bz ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
FW: [Elecraft] K2 sn 6065 for sale
Is the price to high, or is there just a glut on the market with the K3 due out soon? I have had one nibble so I guess the price is high? Brett N2DTS > -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Brett > gazdzinski > Sent: Thursday, September 20, 2007 7:59 PM > To: elecraft@mailman.qth.net > Subject: [Elecraft] K2 sn 6065 for sale > > I have my K2 sn6065 (a nice number) for sale. > It has the KAT2 built in it. > The rig seems to work real well, has no scratches, > original boxes, manuals, spare (extra) parts, and > a rework eliminator kit (not installed). > It was built by me, with no problems during or > after the build. > > The price is $600.00 > > Brett > N2DTS > > > ___ > 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: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com > ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] an as-yet undetailed (that I can see) K3 spec
> I wish there was a good way to know what the fans sound like > in the K3/100. They sound the same on as when they are off, unless you really are in an anechoic chamber. They are incredibly quiet, so much so that I thought they weren't working and had to go around behind the rig to verify the blades were turning, even at the highest speed. By contrast, the ProIII I have currently sitting next to the K3 has very audible fan noise, sometimes even detectable with headphones on. This isn't an analytical answer, and yes with the right equipment you could detect a dB level, but trust me, fan noise is not an issue with the K3. 73, Ed - W0YK ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K0SS CW to RTTY QSO
Now that was cool!! I just heard Tom, K0SS working K6SAD on 20 meter RTTY. Tom was using his K3 and was sending CW which was being translated into RTTY. The only reason I know this is because he mentioned it in his QSO. I thought he was using a keyboard! Very impressive first hand demonstration of the CW to RTTY translator built into the K3. In addition, Tom's signal was 10 over S9 and the RTTY signal was clean and perfect copy (using MixW 2.18). Great demonstration of the K3 CW to RTTY capability. Darn, I can't wait to get my hands on my K3! Best 73, Frank - W6NEK ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] 3B7C
Congrats to both! I worked them with K2/5W/dipole on 40m cw. 73, Steve AA4AK At 04:46 PM 9/22/2007, a.yoshida wrote: Congratulations to you Rob ! I worked them also with K2/5w on 30/20/17m CW. de aki, ja1nlx - Original Message - From: "Robert Boerhorst" <[EMAIL PROTECTED]> To: "Elecraft" Sent: Saturday, September 22, 2007 11:56 PM Subject: [Elecraft] 3B7C Dear list members, Worked (and confirmed in their on-line log) 3B7C this week on 17 & 20 m, with my K2, (QRP only), output 5 Wtts, antenna 2-el Cub. Quad at abt. 8 meters (24 ft) high. They were only S2-S3 overhere.at abt. 14:00 hrs UTC. They sure have good "ears" and good operators on the island. I also heard them on 30, 40 & 80 m but could not break the pile-up. 73/72, Rob, PA0RBO K2 #2406. ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] an as-yet undetailed (that I can see) K3 spec
> I wish there was a good way to know what the fans sound like > in the K3/100. They sound the same on as when they are off, unless you really are in an anechoic chamber. They are incredibly quiet, so much so that I thought they weren't working and had to go around behind the rig to verify the blades were turning, even at the highest speed. By contrast, the ProIII I have currently sitting next to the K3 has very audible fan noise, sometimes even detectable with headphones on. This isn't an analytical answer, and yes with the right equipment you could detect a dB level, but trust me, fan noise is not an issue with the K3. --- Ed, thanks, that IS **exactly** what I wanted to know. --- Your ready comparison with a known noise source is the gold standard for me. --- Very much appreciated! --- I'm sure we will eventually see an SPL spec from Aptos, along with more --- operational details of the cooling system / theory of operation as time goes on. --- gl 73 de Steve KZ1X/4 Luggage? GPS? Comic books? Check out fitting gifts for grads at Yahoo! Search http://search.yahoo.com/search?fr=oni_on_mail&p=graduation+gifts&cs=bz ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] 3B7 with K2/qrp
Okay...had to give it a try. Just worked him on 40m after about 3 minutes of calling. 2.5 minutes spent calling "blind." Then I heard him call a G3, found the G3 on VFO B (no dual rx) and I was the next call. K2/qrp (no KPA here!) Now for 160? LOL de Doug KR2Q ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Anyone use a noise canceller?
Those interested in noise canceling might be interested in what the rest of the communications industry is doing with exotic integrated circuit systems that kill noise by inverting and adding it to the signal at the antenna input. There's one completely IC-based system that's now available: http://www.elektor.com/news/rf-noise-canceller-ic-banishes-interference.2516 47.lynkx The good news is that it is on one chip and reportedly quite effective. The bad news for the casual homebrewer is that the chip measures less than 1mm (<0.04") on a side. Ron AC7AC ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Anyone use a noise canceller?
Ron D'Eau Claire <[EMAIL PROTECTED]> wrote: Those interested in noise canceling might be interested in what the rest of the communications industry is doing with exotic integrated circuit systems that kill noise by inverting and adding it to the signal at the antenna input. The bad news for the casual homebrewer is that the chip measures less than 1mm (<0.04") on a side. -- Thank you for the bad news Ron :-) A circuit working at IF which involves splitting, hard clipping, phasing and summing used in CW reception to reduce zero beat QRM shows promise with noise, but much work still to be done for use as a noise canceller. 73, Geoff GM4ESD ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] WTB
i am looking for a dead or dying hw9,complete with good front panel& docs. Thanks john kf7om ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 in the marketplace
I agree with Jim, N2EY on all points. However, this forum is an excellent avenue for consumer feedback. Disagreements should not be discouraged. The K3 is probably NOT the last product Elecraft will produce. If there is a profitable niche to address some of the issues brought up, then it makes sense to provide a product to meet those needs. Whining is one thing. Consumer feedback is another...I guess they DO overlap. To the folks at Elecraft, I think you hit it out of the park with the K3. (I think you hit it out of the park with the K2!) If QRP kits with large knobs, etc. have a niche, I am sure you can fill it, if you want. I like to consider the marketplace (ANY marketplace) as infinitely large. John AB8O ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] OT: "infinitely large marketplace"
Yeah..you and Norman Hsu! LOL de Doug KR2Q http://online.wsj.com/public/article/SB119029577589633799-FIoQrIt4jKEvzEHN2tlY3mQA78M_20071022.html?mod=tff_main_tff_top ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] TenTec 405 Schematic
Thanks Bruce. I appreciate it. Terry W8EJO ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 Operation
Any of the guys that have used the K3 exclusively for a period of weeks or months and then gone back for a quick look at the "old" radio ie 756p, 1000mp, etc. Wonder what that feels like. Anyone used their K3 on AM yet, or have an AM recording? I think they are still doing some of that on 20m sometimes. Also wonder if the K3 finish is identical to the powder coat on the K2? ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: FW: [Elecraft] K2 sn 6065 for sale
I thought it was because you did not install the rework eliminator kit. I really enjoyed getting to add all of my extra pieces (everything except the 60m/transverter board) and did not have to do anything (from the soldering perspective) but unplug and plug. David Wilburn [EMAIL PROTECTED] K4DGW K2 #5982 FP#-1751 Brett gazdzinski wrote: Is the price to high, or is there just a glut on the market with the K3 due out soon? I have had one nibble so I guess the price is high? Brett N2DTS -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Brett gazdzinski Sent: Thursday, September 20, 2007 7:59 PM To: elecraft@mailman.qth.net Subject: [Elecraft] K2 sn 6065 for sale I have my K2 sn6065 (a nice number) for sale. It has the KAT2 built in it. The rig seems to work real well, has no scratches, original boxes, manuals, spare (extra) parts, and a rework eliminator kit (not installed). It was built by me, with no problems during or after the build. The price is $600.00 Brett N2DTS ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] an as-yet undetailed (that I can see) K3 spec
Hi Steve: I wish there was a good way to know what the fans sound like in the K3/100. For MOST conditions, they don't sound like ANYTHING... they're virtually silent! This afternoon I did some CW>RTTY at 100W output, and for 5-6 minutes at a stretch... the fans cycled up to speed 3 or maybe 4 (top speed). I was able to tell they were running, but there was NEVER any indication of a whirlwind, or anything such as you might expect.. . I placed my hand over the vent holes on the top cover and there was quite a bit of (COOL) air coming out, so I was able to confirm that they were running at a relatively high setting, though the sound was truly minimal... Beyond issues of visual/tactile UI (which has been nearly beat to death), one of the things that bothers me about many rigs is the racket they make. TenTec has that down; no fan needed except for high-duty-cycle modes, and my own personal experience shows that this is really not needed. This is one big reason I'm leaning towards replacing my (fairly noisy) almost 8 year old K2/100 with an Omni VII. I really didn't like the constant fan noise from the Icom 756proII I had and the proIII is no better; the '756 receivers are not at par so they are out of the picking. I don't 'do' Yaesu even if they had a decent rig, and Kenwood doesn't have a rig that is worth buying, either. The new FlexRadio fan sounded VERY loud to me (at Dayton!!), and I don't fancy a radio without knobs anyway. I modified my PC to all but eliminate the noise it makes. So I do have a quiet shack and I like it that way. I don't wear headphones. At Dayton, the din of the room made it hard to hear Wayne talk, much less hear the K3. So ... Are there two fans on the K3, or just on the K3/100? NO fans on the QRP K3... two fans on the KPA3 (100W PA) blowing directly onto the heatsink. When do the two fans come on? Do they both run together, or sometimes just one? If just one, does the other spin freely? Is the speed variable? If so, how is it controlled? Can you set the trip points for when they (each or both) come on and off, or speed up and slow down? Can you set it so the fan doesn't come on at all in QRP 'mode' ? Both fans run at the same time WHEN they run. They are set to come on at preset (in firmware, NOT user settable) heatsink temperatures. There are four (4) speeds... I never hear the first two speeds at all (my shack's pretty quiet as well), and I can usually just tell when speed 3 kicks in. Speed 4 is discernable, but certainly not objectionable at all. 73, Tom Hammond N0SS ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K0SS CW to RTTY QSO
Hi Frank: I just heard Tom, K0SS working K6SAD on 20 meter RTTY. Tom was using his K3 and was sending CW which was being translated into RTTY. The only reason I know this is because he mentioned it in his QSO. I thought he was using a keyboard! Very impressive first hand demonstration of the CW to RTTY translator built into the K3. In addition, Tom's signal was 10 over S9 and the RTTY signal was clean and perfect copy (using MixW 2.18). Great demonstration of the K3 CW to RTTY capability. Darn, I can't wait to get my hands on my K3! Thanks for the reception report!!! I was running the K3 @ 100W barefoot into a Bencher SkyHawk tribander @ 73 feet, pointed due west. I had perfect copy on K6SAD as well... great sigs from him, even though there was some QSB toward the end of our QSO. That was my 2nd (I think) CW>RTTY QSO... first one was pretty much a disaster since I had the RTTY sidetone (which should have been in the background) cranked up WAY too high and it was masking my CW monitor tone, so I couldn't hear myself send and I had to do all of my sending by trying to guesstimate the amount of time required (at X-WPM) required to send each individual character... heheh! I fixed that newbie's error real quick and things got off to a MUCH BETTER second start... heheh! I still have to remember that when I make a sending error, sending a string of DITS to signify an error doesn't translate to anything in RTTY... heheh! Some habits are difficult to break. But it sure IS FUN working RTTY stations... esp. when I tell them I'm sending CW to them... heheh! 73, Tom N0SS (and if I send K0SS when I was working K6SAD, I'm gonna have to fix my fist) ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] K3 Operation
> Any of the guys that have used the K3 exclusively for a > period of weeks or months and then gone back for a quick look > at the "old" radio ie 756p, 1000mp, etc. > Wonder what that feels like. I swapped the K3 in for one of the two ProIIIs I've been using lately. All my operating since I've had the K3 in early July has been with both radios, one in each ear, transmissions interlocked. 1. As reported earlier by myself and others, the "sound" is strikingly different. We all think the K3 "sound" is far superior to any modern radio since the good ole tube-based Collins and Drake rigs. 2. The UI is completely different between the two and one reason why I much prefer two-radio operation with identical radios. Just this morning I was calling the 3B7 on 30 while listening for (note "for", not "to") the 3B7 on 160. I QLF'd the switching and dropped my call sign on top of the 3B7's supposed transmit frequency and a local politely let me know. The preventative thing to do would have been to make sure the 160 rig was in SPLIT mode so that couldn't happen. But, the point of all this is that different UI's increase the risk of something like this happening. 3. What I like about the ProIII is: a. The direct access to band-modes. I have the three band memories set up for CW, SSB and RTTY so it is quick to get to the band-mode I want. Almost all my operating is contesting, so this really doesn't matter except when I'm chasing a DXpedition like the 3B7 which is on multiple band-modes simultaneously. b. The monitor scope for a quick overview of band conditions and activity. More than anything, I've simply gotten used to having it and so it is noticeably absent in the K3. c. The button and knob feel, but frankly this is due to what I'm accustomed to. After using the K3 for almost three months now, it is nearly as comfortable as the ProIII or other radios I use. I hardly ever have the button-push problem of moving the lightweight K3 around the operating table like I had in the beginning. 4. What I like about the K3 is: a. Superior RX ... narrow roofing filters, exceptional dynamic range specs, incomparable DSP features and superlative "analog" sound. b. Superior TX ... smooth QSK, minimal phase noise and spurs to bother line-of-sight locals, Hi-Fi SSB audio and best VOX I've ever used. c. Digital mode capability ... comprehensive, innovative (e.g., CW-data encoding/decoding, PSK, etc.), soundcard interface, DTF (Dual-Tone Filter, which is superior to the Icom Twin Peak Filter) d. Many, many innovative UI features. We field testers are pleasantly surprised every day as we discover features and/or Wayne/Lyle release new firmware. 5. As far as which rig I prefer overall, it would be the K3 and this will become more so with time as the KRX3 and other options ship and a panadapter is created in the future. > Anyone used their K3 on AM yet, or have an AM recording? I > think they are still doing some of that on 20m sometimes. Huh? (Actually, the AM firmware isn't complete and we've got plenty of other features to beat on in the meantime.) > Also wonder if the K3 finish is identical to the powder coat > on the K2? Very different color and texture. The K3 is a smooth satin black (aesthetically "dark charcoal" or some more romantic color term) and very appealing. 73, Ed - W0YK ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Fig. 62 Cold Solder Joints (K3)?
On the "K3 Kit Assembly Manual", Sept. 10, Preliminary version, refer to page 48, figure 62. Unless my eyes and photo deceive me - there appears to be cold solder, poor-flow solder joints on this board. See solder joints to the right and slightly below the "Orient Connection as Shown" caption. Some joints look super with plenty of positive solder flow. Other joints looks like there were crying out for more heat. I wonder if they used a bummer board, just to get a photo in? Fred, de N3CSY awaiting Prod 2 shippment. Shape Yahoo! in your own image. Join our Network Research Panel today! http://surveylink.yahoo.com/gmrs/yahoo_panel_invite.asp?a=7 ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] an as-yet undetailed (that I can see) K3 spec
On Sat, Sep 22, 2007 at 02:17:06PM -0700, Steve Jackson wrote: > Are there two fans on the K3, or just on the K3/100? Two. > When do the two fans come on? Either when the PA gets hot enough or you can turn them on a constant speed. > Do they both run together, or sometimes just one? Both. > Is the speed variable? Yes. > If so, how is it controlled? By menu setting or temperature. > Can you set it so the fan doesn't come on at all in QRP 'mode' ? Yes. I have never heard them. Tree ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 Operation
Ed - this is GOOD stuff, thanks for sharing. [Elecraft] K3 Operation Ed Muns w0yk at msn.com Sat Sep 22 21:28:25 EDT 2007 Elecraft] K3 Operation > Any of the guys that have used the K3 exclusively for a > period of weeks or months and then gone back for a quick look > at the "old" radio ie 756p, 1000mp, etc. > Wonder what that feels like. I swapped the K3 in for one of the two ProIIIs I've been using lately. All my operating since I've had the K3 in early July has been with both radios, one in each ear, transmissions interlocked. ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 - Troubling news...
Just off the wire, there seems to be trouble in Aptos where according to unsubstantiated reports, Wayne has barricaded himself in with the first K3 lot (250?) and has refused to let any of them out, nor anyone in. With the official deadline for release coming in mere days, Wayne was quoted as saying they are "not ready, not ready, not quite ready". His wife, kids, mother, and Eric have been outside with the authorities pleading to Wayne that he let loose with the hostages (K3's) and come out peaceably. By tomorrow morning it is expected that all the beta testers and the entire first order group will have arrived to join in the pleading. (Arrive early to ensure a good megaphone time). I'm taking names in support of Wayne from the elist which I'll attach to a flower arrangement w/box of chocolates along with a note emphasizing that all of us will be 100% accepting of his newest offering regardless of anything that's not yet complete in the firmware. What does everyone think, is this even something I can suggest, I mean somebody somewhere has to be griped about one thing or the next not being in the preliminary release, right? We need to be STRONG, especially now. I hate to go out on a limb here, but unless something is done quickly W might have to bury another cat and you know what that means. TIA for your support... dr. ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 in the marketplace
And then there are those of use who are professional usability engineers... Having met and talked at length with both Wayne and Eric on several occasions, I suspect that they both know what they're doing. Being "intuitively obvious" is always the goal but rarely achieved in practice. And often what is wonderfully simply on the initial pass becomes less desirable as experienced is gained. That's why, sometimes, a Novice and Expert mode for complex devices is often employed. I for one am happy to wait and willing to reserve judgment. Two K2's, a K1 and a KX1 later, I'm fairly convinced the K3 will be worth every day of waiting. Having spent years working with complex technical projects, the holdups to me seem predictable and completely understandable. My collection of Japanese HF radios will go on ebay as soon as the K3 is operational here. My station will consist of a K1, K2 and K3. (and an amplifier if they ever actually come to market). I doubt that I'll spend anytime longing for my old Icom. Doug - K0DXV [EMAIL PROTECTED] wrote: I'll say this and then be quiet. I find phrases like the following to be extremely offensive: "designers had K2-its" "human factor... so often ignored by purist engineers..." "attacks from rabid fans" "experts (ex-spurts)" "Real engineers seem to stall out when they try to confront intangible human factors" "toy sized" I don't see what the point is in these comments. If you don't like a product - any product - just don't buy it. That's one of the great things about ham radio: we don't have to buy any particular thing, and we have lots of choices. KR2Q stated the choices perfectly, dittoes to what he wrote. Please - it's enough to say "I prefer A over B". The derogatory comments about engineers, toys, experts, rabid fans, etc. are really, really offensive. "The K3 has jumped Elecraft into the arena of the ORION 2, FT-9000 and IC-7800 and great specs are great, but.This means they can still be beaten in the marketplace when their specs indicate they should be the only hi end rig of choice." How much do each of those other rigs cost? Can you leave out features you don't find essential to lower the price, then add them later if you want to? For me, a 100 watt K3 kit with ATU and one optional roofing filter would be the starting point. Priced at about *half* of an Orion II with ATU. Put every available option in the K3 and its price will not reach 75% of the price of an Orion II with ATU. And the Orion II is much lower priced than the FTdx-9000 or the IC-7800. Elecraft's game has always been to produce high performance rigs (not "toys" - RIGS!) that are uniquely different from what's on the market, at a lower price and with much more owner involvement. That their products could even be considered competition to rigs costing so much more simply amazes me. Sorry for the rant, thanks for the BW 73 de Jim, N2EY ** See what's new at http://www.aol.com ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 Panadaptor
I hear that Elecraft will be producing a panadaptor? Will this be a hardware interface with pc based software for the pana? Hopefully so. Maybe Simon can integrate HRD.. Randy W8RAN ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] KAT3 tuning per Antenna
On Thursday a few people asked if the KAT3 tuner could be on AUTO for one antenna and bypassed for the other. At present it is global. But it is high on the firmware list to be changed so the tuner state is per antenna. Its not likely to be done prior to first shipment, but will not be long after. 73, Greg - AB7R Whidbey Island WA ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K1 Receiver Issues
I am completely new to amateur radio, the K1 is my first xcvr, and I don't even have my license yet. I have recently completed the assembly of my K1 and I'm not able to pick anything up on the receiver. I worked with someone on the #hamradio channel at irc.freenode.net, and hopefully we've narrowed some things down. I will attempt to explain what we've looked at so far with my butchered lack of understanding. I've tested all the toroids for continuity and they all check out, and I've also gone through the and filter baord portions of the voltage tables, and those check out as well. With some quick and dirty signal tracing (30ft of wire with a probe on the end), I tried inputing rf into various points in the circuit. I got responses at the following points, all on the rf board: U2 Pin 1 C38 X4, the leg connected to C38 I didn't get any response at the following points on the rf board: C39 X1-X4 (except for X4 mentioned above) Checked the voltages on D6-8 and they are all installed and working properly. Any ideas where I should look next? Randall H. Sanborn ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] KPA100/KAT100 trouble
Chris, As your first step, you need to obtain some 1N5711 diodes - obtain 5 of them if you have to order any. First remove the KPA100 and check the base K2 into a good dummy load. Do you have good power control over the entire range? If yes, the base K2 is working, but if no, replace RF Board D9 and re-check. Once you have verified that the base K2 can control the power output, add the KPA100 - operate into a dummy load (no antennas please because there are too many variables to deal with). If the K2 with KPA100 properly controls power and displays a 1:1 SWR, then you will have 2 more extra diodes. OTOH, if the KPA100 produces full power output no matter where the power knob is set, then replace D16 and D17 in the KPA100. The K2 with KPA100 should now properly control power output. Lastly, add the KAT100, but set the ATU menu to CAL and connect the dummy load to the KAT100. If all works well, you have extra diodes, but if all is not well, then replace D1 and D2 in the KAT100. After all is working fine into a dummy load, then you can connect an antenna and try it out - you should find normal behavior. OK, this has been simplistic and considers only that the lightning zapped the wattmeter diodes. This is usually the only consequence, but if at any point, normal behavior is not restored after replacing the diodes, there is some other problem that must be investigated before attempting to proceed any further with the testing. 73, Don W3FPR Chris Kantarjiev wrote: I may be having my first run-in with lightning damage. A thunderstorm rolled through the SF Bay Area last night. I didn't disconnect my antennas until I *saw* the first lightning flash. Oops, I think. I turned on the radio later in the evening, and was getting very high SWR indications on the KAT100, and HiCur on the K2. Hitting TUNE caused a lot of clicking and clacking, and eventual tune to about 1.5:1, but SWR was still high on transmit - and the indicated power on the bargraph was lower than dialed in. This is on both antennas - a vertical and OCF dipole - both more or less resonant. I turned off the rig and called it a night. This morning I pulled out my LP200 dummy load/power meter. The ATU tunes it to 1.1:1. Power out does not change appreciably in response to the POWER knob - if set for any value less than 10W, the power is about 4W; if set for values about 10W (PA on), power out is always about 30W. In neither case is the LED indication on the K2 correct. I also notice that the SWR LEDs no longer display anything when the power is set below 10W, but indicate as expected when POWER is above 10W. ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] KAT3 tuning per Antenna
Greg, If one of the outputs is tuned into a 50 ohm resistive load, it is effectively bypassed. I just don't understand the real need for a bypass and consider it a 'nicety'. Like if ANT2 has a resonant multiband antenna connected, just tune it once on each band and you are ready to go. Perhaps someone can enlighten me about the utility of a true bypass function. 73, Don W3FPR Greg wrote: On Thursday a few people asked if the KAT3 tuner could be on AUTO for one antenna and bypassed for the other. At present it is global. But it is high on the firmware list to be changed so the tuner state is per antenna. Its not likely to be done prior to first shipment, but will not be long after. ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Elecraft CW Net Announcement
Good Evening, The weather has been quite pleasant this week. Enough so that I am now stiff and sore from cutting, splitting, hauling, and stacking wood! However, the stiffness is lessening with each passing day as is my weight. The rains have held off for the most part only raining at night or landing as the heavy mists we frequently get from the nearby Pacific Ocean. If you work hard you can warm yourself enough to counteract the chill of the mist. You're still wet but it is not as cold. If you slow down you get very chilly. It helps to have a bonfire going nearby or have the fire going in the house. I was on twenty meters a few days this week and signals were not too bad. I have not tried forty lately but hope for the best. I know the sun spot cycle will start going up soon, at least that is the theory. During the Maunder Minimum the sun was quiet for quite some time. Folks attribute the Little Ice Age to the inactive sun. If all goes well this will not happen to us now. I've read reports of the next cycle being the best ever and other reports of it being not so hot. Who can tell until we are actually done with it? Kind of like weather predictions in this part of Oregon. A time machine would be the only accurate method but then only if causality is not disturbed by its peregrinations. Hunting season starts very soon. Folks are out in force driving around the back roads looking for signs of activity. I need to post the land again because the signs are fading with age. Since I have the only wooded acreage for quite a distance both the deer and the hunters all want to come here. The deer and the elk can stay all they like; the hunters have to wait for them to leave the cover. My next door neighbor is not allowed to hunt on his 1000 acres because his wife won't let him. He has to go elsewhere on the mountain for his game. She feeds the deer and elk apples which they collect from the local orchards. Please join us tomorrow evening to test the propagation and your rig. Tomorrow: 1) Hail signs (first letter or two of the suffix of your call) 2) NCS help (as well as QSP/QNP help) Please join us: Sunday 2300z (Sunday 4 PM PDT) 14050 kHz Monday 0200z (Sunday 7 PM PDT) 7045 kHz 73, Kevin. KD5ONS ecn.visionseer.com ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] KAT3 tuning per Antenna
Don Wilhelm wrote: If one of the outputs is tuned into a 50 ohm resistive load, it is effectively bypassed. I just don't understand the real need for a bypass and consider it a 'nicety'. Like if ANT2 has a resonant multiband antenna connected, just tune it once on each band and you are ready to go. Perhaps someone can enlighten me about the utility of a true bypass function. Setting the tuner to a 50 ohm load is a better way of 'bypassing' it than removing all the autotuner's capacitors and coils from the circuit (which is what 'bypass' does). Because there is some stray capacity/inductance in the board and connections, tuning it into a dummy load cancels this out. There was a lot of discussion on the beta test reflector about this. It's possible that Wayne will either make bypass work per-band, or (as I prefer) make it set the tuner (per band) to match a 50 ohm load. Meanwhile, I just connect my dummy load and tune it (and of course the tuner remembers the settings per band) if I want to 'bypass' the tuner on a particular band or bands. -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco ___ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
