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Just to record thanks to Elecraft for great service. Had a big problem with control from the front panel. Rather than prolong diagnosis and my attempts to cure the problem, Gary sent me a new front panel board which arrived here in UK in four working days. Now fitted, working and off to Uganda next Tuesday (5X1NH). Wonderful!
73 Nick G3RWF _______________________________________________ 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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Would it be possible to have a 1 KHz tuning step for AM? Unless I
missed something it seems the smallest AM coarse step is 5 KHz. 1 KHz would be a lot better for tuning around the SWBC bands; 5 is just too coarse. Thanks. 73, Drew AF2Z _______________________________________________ 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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[hidden email] wrote:
> Would it be possible to have a 1 KHz tuning step for AM? Unless I > missed something it seems the smallest AM coarse step is 5 KHz. 1 KHz > would be a lot better for tuning around the SWBC bands; 5 is just too > coarse. Thanks. > Short wave broadcast stations are channelised with 5kHz channels; why would 1kHz steps be useful? -- David Woolley "The Elecraft list is a forum for the discussion of topics related to Elecraft products and more general topics related ham radio" List Guidelines <http://www.elecraft.com/elecraft_list_guidelines.htm> _______________________________________________ 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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On Fri, 2008-06-20 at 13:42, David Woolley (E.L) wrote:
> [hidden email] wrote: > > Would it be possible to have a 1 KHz tuning step for AM? Unless I > > missed something it seems the smallest AM coarse step is 5 KHz. 1 KHz > > would be a lot better for tuning around the SWBC bands; 5 is just too > > coarse. Thanks. > > > > Short wave broadcast stations are channelised with 5kHz channels; why > would 1kHz steps be useful? Outside of ITU Region 2 (the Americas) 9 kHz channel spacing is used on the AM band. Al N1AL _______________________________________________ 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 David Woolley (E.L)
Well, at least one reason is that some SW stations still insist on using frequencies other than precisely on the 0 or 5 kHz marks. Also, a slower tuning rate makes it easier to "offset" the tuning to one side a bit to help duck interference. This is the "we don't need no stinkin' rules" syndrome. SW listening and AM ham radio operation are the reasons that I insist on having full AM capability in any HF ham receiver/transmitter/transceiver before I will purchase it. Also, all too many of them recently have, unfortunately, bought into the idea that AM "must" have a faster tuning rate than other modes. Not necessarily a good idea, at least as far as I am concerned. But then, perhaps I just an OF. Selectable tuning rates for _all_ modes, including the very slowest to the very fastest are the way to go. - Jim, KL7CC David Woolley (E.L) wrote: > Short wave broadcast stations are channelised with 5kHz channels; why > would 1kHz steps be useful? > _______________________________________________ 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 Alan Bloom
Alan Bloom wrote:
> > Outside of ITU Region 2 (the Americas) 9 kHz channel spacing is used on > the AM band. Which is medium and long wave, not short wave. (I remember when the 200kHz standard frequency became 998kHz!) -- 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: [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 David Woolley (E.L)
There are AM users in the SW spectrum that aren't
BC station on 5 kHz steps. 73! Ken Kopp - K0PP _______________________________________________ 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 Jim Wiley-2
I agree with Jim ..... A fast tuning rate on AM is not necessarily good.
What is good is to be able to vary the rate to fit what the user likes ..... Like the FT-817 and IC-746. And, Jim, being a live OF beats the heck out of the alternative! 72 73 Hank K8DD ----- Original Message ----- From: "Jim Wiley" <[hidden email]> To: "David Woolley (E.L)" <[hidden email]> Cc: <[hidden email]> Sent: Friday, June 20, 2008 4:58 PM Subject: Re: [Elecraft] K3 AM feature request > > > Well, at least one reason is that some SW stations still insist on using > frequencies other than precisely on the 0 or 5 kHz marks. Also, a slower > tuning rate makes it easier to "offset" the tuning to one side a bit to > help duck interference. This is the "we don't need no stinkin' rules" > syndrome. > > SW listening and AM ham radio operation are the reasons that I insist on > having full AM capability in any HF ham receiver/transmitter/transceiver > before I will purchase it. Also, all too many of them recently have, > unfortunately, bought into the idea that AM "must" have a faster tuning > rate than other modes. Not necessarily a good idea, at least as far as I > am concerned. But then, perhaps I just an OF. Selectable tuning rates > for _all_ modes, including the very slowest to the very fastest are the > way to go. > > - Jim, KL7CC > > > David Woolley (E.L) wrote: >> Short wave broadcast stations are channelised with 5kHz channels; why >> would 1kHz steps be useful? >> > _______________________________________________ > 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 Ken Kopp-3
Ken Kopp wrote: > There are AM users in the SW spectrum that aren't BC station on 5 kHz > steps. ------------------------------------------- Many SW BC stations in Regions 1,2 and 3 aren't either especially in the 'Tropical BC Bands', a large number in S.America. 73, Geoff GM4ESD _______________________________________________ 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 David Woolley (E.L)
On Fri, 20 Jun 2008 21:42:37 +0100, you wrote:
>[hidden email] wrote: >> Would it be possible to have a 1 KHz tuning step for AM? Unless I >> missed something it seems the smallest AM coarse step is 5 KHz. 1 KHz >> would be a lot better for tuning around the SWBC bands; 5 is just too >> coarse. Thanks. >> > >Short wave broadcast stations are channelised with 5kHz channels; why >would 1kHz steps be useful? The 5 khz tuning steps are awfully touchy, even at the lowest VFO rate (100 counts per turn). That's 500 Khz per only one turn of the knob-- practically a complete "band". That is just too coarse for comfortable tuning. A little nudge and you've flown by 10 or 15 Khz. The tuning steps for AM don't make any practical sense. FINE gives you 1 and 10 Hz, COARSE takes a huge jump to 5 KHz. Shouldn't there be something between 10 Hz and 5 KHz? Seems like 100 Hz and/or 1 Khz should be in there somewhere. (Unless I've missed something here...) 73, Drew AF2Z _______________________________________________ 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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Drew,
Use the fine/coarse controls in conjunction with the RATE button. Tap the RATE button until the 100 Hz digit place blinks and that allows you to easily tune in 50 Hz steps which is 5 kHz per revolution with a 100 count setting. That is certainly good enough for me. It takes a lot of manual reading along with some experimenting with the K3 to discover all its flexibility - so for those who have not yet done so, 'Read The Fine Manual'. Fortunately, the default setting result in a quite workable radio, so it is usable after only skimming the manual, if you want more, a bit of study is required. 73, Don W3FPR [hidden email] wrote: > The tuning steps for AM don't make any practical sense. FINE gives you > 1 and 10 Hz, COARSE takes a huge jump to 5 KHz. Shouldn't there be > something between 10 Hz and 5 KHz? Seems like 100 Hz and/or 1 Khz > should be in there somewhere. (Unless I've missed something here...) > > 73, > Drew > AF2Z > > _______________________________________________ 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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Thanks, Don. That is a big improvement. I did suspect that I was
missing something (and yes, I'm guilty of not having studied the manual enough). I notice that while in COARSE, tapping RATE drops you back into FINE. It might be nice if instead it switched to, say, 500 Hz steps. But the 50 Hz steps are quite comfortable for HF AM. 73, Drew AF2Z On Sat, 21 Jun 2008 08:48:27 -0400, Don W3FPR wrote: >Drew, > >Use the fine/coarse controls in conjunction with the RATE button. Tap >the RATE button until the 100 Hz digit place blinks and that allows you >to easily tune in 50 Hz steps which is 5 kHz per revolution with a 100 >count setting. That is certainly good enough for me. > >It takes a lot of manual reading along with some experimenting with the >K3 to discover all its flexibility - so for those who have not yet done >so, 'Read The Fine Manual'. Fortunately, the default setting result in >a quite workable radio, so it is usable after only skimming the manual, >if you want more, a bit of study is required. > >73, >Don W3FPR > >[hidden email] wrote: >> The tuning steps for AM don't make any practical sense. FINE gives you >> 1 and 10 Hz, COARSE takes a huge jump to 5 KHz. Shouldn't there be >> something between 10 Hz and 5 KHz? Seems like 100 Hz and/or 1 Khz >> should be in there somewhere. (Unless I've missed something here...) >> >> 73, >> Drew >> AF2Z >> >> > >_______________________________________________ >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 Don Wilhelm-4
Just curious, has anyone found RX eq to be useful for CW? Just
wondering what settings people like, if not flat. 73, Drew AF2Z _______________________________________________ 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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Drew:
I have my sidetone pitch set for 550 Hz. The RX EQ is adjusted so that the 400 HZ band (button 4) is at +2 and the others above that are all set for -16. This eliminated a lot of QRN and other band noise plus gives a slight peak near the IF center. Speaker choice will play a roll in this decision. 73 Steve Ellington [hidden email] ----- Original Message ----- From: <[hidden email]> To: <[hidden email]> Sent: Saturday, June 21, 2008 9:16 AM Subject: [Elecraft] K3 RX eq for CW > Just curious, has anyone found RX eq to be useful for CW? Just > wondering what settings people like, if not flat. > > 73, > Drew > AF2Z > > _______________________________________________ > 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 -------------------------------------------------------------------------------- No virus found in this incoming message. Checked by AVG. Version: 8.0.100 / Virus Database: 270.4.1/1512 - Release Date: 6/21/2008 9:27 AM _______________________________________________ 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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Hello, Anyone have any experience with Ethernet to serial adapters? Would it be possible to connect one to the K3 serial port? Manuel W4SSB _______________________________________________ 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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On Jun 21, 2008, at 7:03 AM, Manuel Maseda wrote: > > Hello, > > Anyone have any experience with Ethernet to serial adapters? Would > it be > possible to connect one to the K3 serial port? Yes, but the problem you face is that there is no standard way to make that device look like a standard serial port to the OS running your logging or rig control software. Make sure that the ethernet-to-serial adaptor comes with an OS-specific driver that then looks like a standard serial port to any programs running on the computer. Many of these devices are intended to accept only a TELNET or SSH connection. Some EtS device work as a virtual serial cable with one device attached to the serial port on your computer and another attached to the serial port on the controlled device (K3 in this case). That does allow you to control something over a long distance. This approach seems to work pretty well and I have used this when controlling devices that have a specific communications protocol. I have experimented with bluetooth adaptors which are much better supported in the various OS's as serial devices. Even so I have experienced mixed results. I have found that, in all my test cases, I could not change the baud rate under program control and had to use manual settings. Likewise I couldn't get the control lines, i.e. RTS and DTR, to change under program control. So you are going to have to try various devices to see if they will work. Don't expect perfection. -- 73 de Brian, WB6RQN Brian Lloyd - brian HYPHEN wb6rqn AT lloyd DOT 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 Manuel Maseda
At work I have used and recommend to customers the Extron adaptors,
such as this single-port model: http://www.extron.com/product/printable.aspx?id=iplts1 It offers a TCP port through which the serial stream can be tunneled. The built in webserver allows the thing to be configured using a web browser. There's a whole family of them with differing numbers of ports. All well and good, but your control application (whatever it is) need to be network aware, capable of acting as a TCP client etc. I incorporated support for the Extron IP Link family directly into the control panel software for our products, but have no idea whether or not common PC based ham radio control programs support this kind of connectivity - I don't use them, I get enough of all that at work. Bob NW8L On Sat, Jun 21, 2008 at 8:03 AM, Manuel Maseda <[hidden email]> wrote: > > Hello, > > Anyone have any experience with Ethernet to serial adapters? Would it be > possible to connect one to the K3 serial port? > > Manuel W4SSB > > _______________________________________________ > 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 Manuel Maseda
Manuel Maseda wrote:
> ... > Anyone have any experience with Ethernet to serial adapters? Would it be > possible to connect one to the K3 serial port? > Lantronix and other manufacturers make some very nice Ethernet-to-serial modules. My experience developing firmware for a security system controller has shown that the XPort (wired) and WiPort (wireless) versions of the Lantronix modules are very reliable and easy to work with. They are designed to be soldered onto a circuit board, are RoHS compliant, and are available from Mouser. The XPort costs about $50-$60 and the WiPort about twice that amount. The K3 RS-232 port limits the RX/TX speed to 38,400 bps, which is fast enough for our purposes. These modules are highly configurable and have built-in Web server support. They can be configured via the Web interface or via telnet. Up to 256-bit AES encryption is supported on some versions of these modules. The modules need regulated 3.3v power and have CMOS/TTL level interface line on the backside (serial) terminals. A level converter (e.g., MAX232) would be needed to interface with the K3's RS-232 port if the module is attached externally, requiring a source of 5v power. (If you're thinking of making a modification that is internal to the K3, the module can interface directly to the PIC microcontroller at up to the PIC-imposed limit of 115,200 bps, but that would require considerable hardware hacking. Maybe Wayne can put this on the wish list for a K3A or K4 product.) Gus Hansen KB0YH _______________________________________________ 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 Bob Cunnings NW8L
Eltima's Serial to Ethernet Communications software library http://www.eltima.com/products/serial-over-ethernet/ allows mapping an Ethernet to serial adapter to a virtual port on a local computer. There may be similar products ... I have not looked for them. 73, ... Joe, W4TV > -----Original Message----- > From: [hidden email] > [mailto:[hidden email]] On Behalf Of Bob Cunnings > Sent: Saturday, June 21, 2008 11:31 AM > To: Manuel Maseda > Cc: [hidden email] > Subject: Re: [Elecraft] Ethernet to serial adapters > > > At work I have used and recommend to customers the Extron > adaptors, such as this single-port model: > > http://www.extron.com/product/printable.aspx?id=iplts1 > > It offers a TCP port through which the serial stream can be > tunneled. The built in webserver allows the thing to be > configured using a web browser. There's a whole family of > them with differing numbers of ports. > > All well and good, but your control application (whatever it > is) need to be network aware, capable of acting as a TCP client etc. > > I incorporated support for the Extron IP Link family directly > into the control panel software for our products, but have no > idea whether or not common PC based ham radio control > programs support this kind of connectivity - I don't use > them, I get enough of all that at work. > > Bob NW8L > > On Sat, Jun 21, 2008 at 8:03 AM, Manuel Maseda > <[hidden email]> wrote: > > > > Hello, > > > > Anyone have any experience with Ethernet to serial > adapters? Would it > > be possible to connect one to the K3 serial port? > > > > Manuel W4SSB > > > > _______________________________________________ > > 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 _______________________________________________ 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 N4LQ-2
Steve,
Thanks for this insight. Can the RX EQ be saved per mode, that is, one for SSB and one for CW? Thanks and 73, Bud N7CW -----Original Message----- From: [hidden email] [mailto:[hidden email]] On Behalf Of n4lq Sent: Saturday, June 21, 2008 6:44 AM To: [hidden email]; [hidden email] Subject: Re: [Elecraft] K3 RX eq for CW Drew: I have my sidetone pitch set for 550 Hz. The RX EQ is adjusted so that the 400 HZ band (button 4) is at +2 and the others above that are all set for -16. This eliminated a lot of QRN and other band noise plus gives a slight peak near the IF center. Speaker choice will play a roll in this decision. 73 Steve Ellington [hidden email] ----- Original Message ----- From: <[hidden email]> To: <[hidden email]> Sent: Saturday, June 21, 2008 9:16 AM Subject: [Elecraft] K3 RX eq for CW > Just curious, has anyone found RX eq to be useful for CW? Just > wondering what settings people like, if not flat. > > 73, > Drew > AF2Z > > _______________________________________________ > 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 ---------------------------------------------------------------------------- ---- No virus found in this incoming message. Checked by AVG. Version: 8.0.100 / Virus Database: 270.4.1/1512 - Release Date: 6/21/2008 9:27 AM _______________________________________________ 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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