K3 filter performance
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Re: Remotely controlling a K2
 
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If you are going from mac to mac then ssh is built in. This creates a
secure encrypted tunnel between the two machines. Open a terminal window (Apps -> Utilities -> Terminal) Type: ssh -L 3000:localhost:5900 remoteusername@<remote host> Once you enter the passwd of the remote host you are in. Then on the local mac open the vncviewer app and connect to 127.0.0.1:3000 73! Lee WW2DX On Jan 29, 2008, at 9:59 AM, [hidden email] wrote: > Consider using a personal VPN such as Hamachi to tunnel your control > software through. It is encrypted end-to-end and works very well. > > 73 john k5js > > -------------------------------------------------------------------- > myhosting.com - Premium Microsoft® Windows® and Linux web and > application > hosting - http://link.myhosting.com/myhosting > > > _______________________________________________ > Elecraft mailing list > Post to: [hidden email] > 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: [hidden email] 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 |
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In reply to this post by GW0ETF
Ok so I've been reading about all this group delay stuff and the what not...
But still don't get what the best option of a CW/Digital filter is going to be... I'd like to have as much flexibility as possible and my main use for the radio would be for contest use. But I want to be able to participate with equal performance in CW SSB and Digital modes. So I'm considering the 1.8Khz 8 pole to be the perfect SSB contesters filter. I've been contemplating the notion of going with the 2.8Khz - 8pole for the upgraded transmit filter not sure how much better the steeper skirts are going to help for TX I'm assuming a barely noticeable cleaner TX with fewer spurs but that's probably about it. So that fills 2 holes. The next one is a toss up in my mind... Do I get the 400 - 8 pole or go with the 500 - 5 pole? Right now the narrowest filter in my Kenwood is 500 and that seems really wide but that's the second IF with a first of 6kc. The 500 often is just really noisy and there are times when its not enough to separate out nearby stations on a ragchew type day. Thankfully the K3's second filter will let me down to 50Hz even though the front filter is still 500Hz. So next I've been looking at the transverter idea. If I get a 2M transverter and an FM XTAL can the K3 be used to do standard FM repeater use or could it be used that way some day when all the bells and whistles are added? I noted that the elecraft transverters say that the rig has to operate from 28 to 30Mhz. Well if 28Mhz = 144Mhz then 30 only gets you to mid band in 2M and doesn't really get you into the repeater realm. So I'm confused as to if this is just for using the other modes at the bottom end of the 2M band or what..... I guess I'm just interested to know what all goes on down there as to if that is worth going that route. The main reason I'm interested in the transverter stuff and if I can do FM is if that is true then my next two filters are the 6kc one for doing essb and for better audio on strong AM stations and the FM one for 2M repeater operations so that I only have to have one rig in the shack for everything from 1.8 to 148 Mhz (or beyond with the purchase of more xverters). If this is not the case would there be a significant gain in CW performance when wanting to get ultimate narrow widths by buying the 200Hz 5 pole or the 250Hz - 8 pole? I find that I usually have my FL3 setting in my K1 set to 250 because anything below that starts to attenuate the signal that I'm trying to catch. From what I've been reading the K3 actually compensates for the slight attenuation in the filter by increasing gain for the narrower filters. Essentially I'm going for maximum flexibility with the rig and looking for filter selection suggestions. I think I'd also be interested in keeping an open slot for the mentioned possibilities of the adjustable rock that has been mentioned. I've kept telling myself that I'm going to wait until I'm done with this bloody masters degree to buy a K3 but screw it.... All you gentlemen so happy with your rigs has me wanting one too badly!!! :) _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
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In reply to this post by DaveL G3TJP
This "which filters do I need" questions are getting out of hand.
We are dealing with a pro Formual 1 car here. Problem is that often we *are not* F1 technicians, nor do we own a 'suitable racetrack' or have the driving qualities and lasting experience. Stop the nonsense discussions. SSB; the 2.7 Khz is perfect ** CW; go for the 400Hz and if weaksignal/extreme contesting is required; the 200Hz 5pole That is all you need. Stop discussing at this point. Get on the band for crying out loud! Note: my Orion has a perfect 4 pole 600Hz filter which performs perfect. Now do I think about a 10-pole 200Hz ?? Start the discussion again in 6months or so, when true live experience over a longer period of time is available. '73 Mark, PA5MW ** tested K3 extensively during VHF weaksignal, and 160m CW contesting from december 2007 till last weekend. *** compared K3 to Orion; like both, but they are different. _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
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In reply to this post by Brett Howard
I'm not sure if I would want to use such a setup for working
repeaters. The FM filter is $120, you can buy a Yeasu FT-2800M for that, and many others for just a little more. Even if you wanted the FM filter for 10 meter FM anyway, and the transverter for 144 CW/SSB, it would still be a cumbersome setup for working repeaters. Just my 2¢ 73 de Joseph Durnal NE3R On Jan 29, 2008 10:11 PM, Brett Howard <[hidden email]> wrote: >... So next I've been looking at the transverter idea. If I get a 2M > transverter and an FM XTAL can the K3 be used to do standard FM repeater use > or could it be used that way some day when all the bells and whistles are > added? I noted that the elecraft transverters say that the rig has to > operate from 28 to 30Mhz. Well if 28Mhz = 144Mhz then 30 only gets you to > mid band in 2M and doesn't really get you into the repeater realm. So I'm > confused as to if this is just for using the other modes at the bottom end > of the 2M band or what..... I guess I'm just interested to know what all > goes on down there as to if that is worth going that route. > > The main reason I'm interested in the transverter stuff and if I can do FM > is if that is true then my next two filters are the 6kc one for doing essb > and for better audio on strong AM stations and the FM one for 2M repeater > operations so that I only have to have one rig in the shack for everything > from 1.8 to 148 Mhz (or beyond with the purchase of more xverters). >... Elecraft mailing list Post to: [hidden email] 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 |
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In reply to this post by P.B. Christensen
Paul Christensen <w9ac> wrote:
> I just read Wayne's 1/16 update concerning progress... > > ....does anyone know if the forthcoming KRX3 change will require > existing K3 transceivers to be modified? No modifications will be required. All changes are in the subreceiver PCB layout. We had to accommodate a full shield and reduce the overall dimensions of the KRX3 module to make it easier to install. I'll be happy to answer any other technical questions about the subreceiver. Please e-mail me directly. 73, Wayne N6KR --- http://www.elecraft.com _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
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