[Elecraft] Sidetone lost on #4913 after installing DSP
I built and installed the KDSP2 module yesterday on K2 #4913. Before installing, I ran a check on the radio and everything checked out. I did not check the sidetone generator. Now I have the DSP installed and it seems to be working. Problem is my sidetone is gone! I pulled the DSP and put jumpers in to bypass the headers - no help. I had W0WKS listen on 10m while I sent a CW message - I'm sending. I hooked up a 1/8 stereo plug to the CW jack and sent CW - the audio cuts out and the rf meter indicates a signal is being transmitted - just no sidetone. Help? 73 de Ken KGØWX - Flying Pigs #-1055 Elecraft K2 #4913 - Kadiddlehoppers #11,807 ___ 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] KAT1 tuning cycle.
Hi, I just built a KAT1 to put in the K1 I am taking to Norfolk Island soon, and while it appears to work just fine, and remembers the setting of my dipoles ( which have a low SWR in the CW portions) but I have to wonder at how long it takes to tune, if I string the likes of a random length of wire to it and try to get a match. (working it to a good earth peg) It buzzes away in what appears to be a timed run, and starts at 9.9SWR and works down, reaching the ultimate setting it will record and then carries on buzzing for a few more seconds. Those little relays in there seem to be working their butts off I only ask this , as the KAT2 makes a match on the same antenna with considerably less fuss. ( I am aware the KAT1 tuner does not have the same L/C combinations as the KAT2) Just thought I would try the random wire as I am taking 1/2w center fed antennas with me as well for 80/40/30, but not knowing the layout of where I am staying, a wire thrown over a tree might be handy. I'll have to say the match it ultimately obtains checks out pretty close on the KAT2 as well, but should there be all that activity when a tune is initiated? I guess if I used a 1/4 w instead of a random length, with slightly longer radials it might be better perhaps? Perhaps I worry too much. :-( Cheers..Ron ZL1TW ( will be VK9BRW from 1/11/05 to 10/11/05) No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.344 / Virus Database: 267.11.9/118 - Release Date: 10/3/2005 ___ 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] Scrolling AView
Hi, This is a bit off topic, but there must be some computer whizzes out there. I have ARRL AView to read QST, QEX etc. and when I look at a full page, the print is so small and distorted I can't read it. When you look at a half page you just can see the top half of the page and you can't scroll down. I tried screen resolution of 1024 X 760 and 800 X 600 but no change. I had another program that I could only see the top half too, and their tech support told me how to use Internet Explorer to start the program to use IE to scroll up and down. That was on Win98. I tried that on WinXP and it doesn't work or else I'm not setting it up correctly; probably the latter. Can any one help? I called ARRL, but probably didn't get the right person as they didn't know anything about it. Tnx for you time, 73, Chas, W1CG ___ 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] magnetic keyer
Very, very attractive Congrats Ron VA6RL ___ 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] Sidetone lost on #4913 after installing DSP
Ken: First I would suggest that you go into the menu and select ST-L and then press the menu button to enter the Menu Edit Function. Then tap the display button until you hear the sidetone. It sounds like your K2 setup has been set to the wrong Sidetone source in the firmware. It should be set to U8-4. 73 Jim Younce K4ZM K2 SN: 18 ___ 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] KDSP2
Hi, I have built the KDSP2 module and installed it into my K2. In the Denoiser Menu I can hear a distinct differens between nr 99 71 and nr 00 71 and also when changing the decay value. But in the Autonotch Menu I can't notice any difference in the audio regardless of the settings of Beta and/or decay. Do I have a problem here with module? 73 Rolf SM0YQC K2 #4979 ___ 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] KDSP2
Mine too. I probably don't understand very well the autonotch feature, but if someone could help us with a test or a sound file where we could hear a demo Le 05-10-09 à 08:31, Rolf a écrit : Hi, I have built the KDSP2 module and installed it into my K2. In the Denoiser Menu I can hear a distinct differens between nr 99 71 and nr 00 71 and also when changing the decay value. But in the Autonotch Menu I can't notice any difference in the audio regardless of the settings of Beta and/or decay. Do I have a problem here with module? 73 Rolf SM0YQC K2 #4979 ___ 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 = /¯\/¯\/¯\/¯\/¯\/¯\ JEAN-FRANCOIS MENARD V A 2 V Y Z [EMAIL PROTECTED] \_/\_/\_/\_/\_/\_/ Elecraft K2 #4130 Elecraft KX1 #999 http://homepage.mac.com/jfmenard = ___ 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] New Amp Debut?
Anyone hear when the new linear amps will be available for purchase? Have they started beta testing? ___ 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] KDSP2
One way to check it is to switch to USB mode and tune in WWV (10 MHz here) and then tune 1 kc lower (.00). You should hear a hetrodyne. Then engage the auto notch and the hetrodyne should disappear. It does on mine. 73, Ken K3IU -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of JEAN-FRANCOIS MENARD Sent: Sunday, October 09, 2005 8:55 AM To: Rolf Cc: Elecraft@mailman.qth.net Subject: Re: [Elecraft] KDSP2 Mine too. I probably don't understand very well the autonotch feature, but if someone could help us with a test or a sound file where we could hear a demo Le 05-10-09 à 08:31, Rolf a écrit : Hi, I have built the KDSP2 module and installed it into my K2. In the Denoiser Menu I can hear a distinct differens between nr 99 71 and nr 00 71 and also when changing the decay value. But in the Autonotch Menu I can't notice any difference in the audio regardless of the settings of Beta and/or decay. Do I have a problem here with module? 73 Rolf SM0YQC K2 #4979 ___ 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] KDSP2
The BEST way to determine if the AutoNotch DSP is running correctly, and I sure it is, is to go to the 40 meter band when all those SW Broadcast Stations are transmitting and then engage the feature. You should hear no heterodynes. 73s john-n3drk Le 05-10-09 à 08:31, Rolf a écrit : Hi, I have built the KDSP2 module and installed it into my K2. In the Denoiser Menu I can hear a distinct differens between nr 99 71 and nr 00 71 and also when changing the decay value. But in the Autonotch Menu I can't notice any difference in the audio regardless of the settings of Beta and/or decay. Do I have a problem here with module? 73 Rolf SM0YQC K2 #4979 ___ 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] Scrolling AView
Chas, The QST View images are .TIF files, so whatever program you have on your computer that is associated with TIF files is the one that will be used. You can change the associatiation from Windows Explorer - click Tools, select Folder Options, and in the box that opens, select the File Types tab. This will show the list of file associations - scroll down to TIF and select it, and if you want to change the association, look at the bottom of the box Details for 'TIF' extension If you want to set it to IE, click the change button and use the resulting resulting dialog box to select whichever program you want to use. 73, Don W3FPR -Original Message- This is a bit off topic, but there must be some computer whizzes out there. I have ARRL AView to read QST, QEX etc. and when I look at a full page, the print is so small and distorted I can't read it. When you look at a half page you just can see the top half of the page and you can't scroll down. I tried screen resolution of 1024 X 760 and 800 X 600 but no change. I had another program that I could only see the top half too, and their tech support told me how to use Internet Explorer to start the program to use IE to scroll up and down. That was on Win98. I tried that on WinXP and it doesn't work or else I'm not setting it up correctly; probably the latter. Can any one help? I called ARRL, but probably didn't get the right person as they didn't know anything about it. Tnx for you time, 73, Chas, W1CG ___ 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 Audio/Sensitivity Issue
About two months ago, I built a K2 - SN 4998 , KDSP, KSB2, KPA100 everything worked. Yesterday I built the KNB2 K160RX boards after installing them, my audio is very low except for strong SSB signals the sensitivity across all band appears to have decreased. When using the XG2 signal Generator, neither the 50uv or 1uv cause the S meter to indicate anything. Anyone have any suggestions? Bob WB8DDI K2# 4998 ___ 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 Audio/Sensitivity Issue
I also took all the modules out of my K2 including the KPA100 installed my Rework Eliminators to see if one of the modules was causing the issue, but I still have low audio sensitivity. I did check the TX the power across all bands is OK. I also put a headset on the radio without any change. - Original Message - From: Bob Wehking [EMAIL PROTECTED] To: Elecraft@mailman.qth.net Sent: Sunday, October 09, 2005 11:03 AM Subject: [Elecraft] K2 Audio/Sensitivity Issue About two months ago, I built a K2 - SN 4998 , KDSP, KSB2, KPA100 everything worked. Yesterday I built the KNB2 K160RX boards after installing them, my audio is very low except for strong SSB signals the sensitivity across all band appears to have decreased. When using the XG2 signal Generator, neither the 50uv or 1uv cause the S meter to indicate anything. Anyone have any suggestions? Bob WB8DDI K2# 4998 ___ 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 -- No virus found in this incoming message. Checked by AVG Anti-Virus. Version: 7.0.344 / Virus Database: 267.11.13/126 - Release Date: 10/9/2005 ___ 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] Wondering ...
I can not find the manual that came with the KX1's paddle kit (KXPD1) ... Does anyone know what size those 4 screws are that hold the two paddle boards to the metal block? Thanks for any help? 72/3, Weymouth Walker (Wey) ... K8EAB Metro Atlanta, GA ___ 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 Audio/Sensitivity Issue
Things work better when you follow directions. I forgot to add the jumper where R89 once was installed. - Original Message - From: Bob Wehking [EMAIL PROTECTED] To: Bob Wehking [EMAIL PROTECTED]; Elecraft@mailman.qth.net Sent: Sunday, October 09, 2005 11:09 AM Subject: Re: [Elecraft] K2 Audio/Sensitivity Issue I also took all the modules out of my K2 including the KPA100 installed my Rework Eliminators to see if one of the modules was causing the issue, but I still have low audio sensitivity. I did check the TX the power across all bands is OK. I also put a headset on the radio without any change. - Original Message - From: Bob Wehking [EMAIL PROTECTED] To: Elecraft@mailman.qth.net Sent: Sunday, October 09, 2005 11:03 AM Subject: [Elecraft] K2 Audio/Sensitivity Issue About two months ago, I built a K2 - SN 4998 , KDSP, KSB2, KPA100 everything worked. Yesterday I built the KNB2 K160RX boards after installing them, my audio is very low except for strong SSB signals the sensitivity across all band appears to have decreased. When using the XG2 signal Generator, neither the 50uv or 1uv cause the S meter to indicate anything. Anyone have any suggestions? Bob WB8DDI K2# 4998 ___ 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 -- No virus found in this incoming message. Checked by AVG Anti-Virus. Version: 7.0.344 / Virus Database: 267.11.13/126 - Release Date: 10/9/2005 -- No virus found in this incoming message. Checked by AVG Anti-Virus. Version: 7.0.344 / Virus Database: 267.11.13/126 - Release Date: 10/9/2005 ___ 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] Sidetone lost on #4913 after installing DSP
Hve you checked to make sure that the side tone chip selection is correct? I had this happen one time when I was troubleshooting a KPA100 problem. I checked the mene selection for the source of the side tone chip and it was set to the wrong one. Jess AE0CW -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Ken Bessler Sent: Sunday, October 09, 2005 3:30 AM To: Elecraft Main Group Subject: [Elecraft] Sidetone lost on #4913 after installing DSP I built and installed the KDSP2 module yesterday on K2 #4913. Before installing, I ran a check on the radio and everything checked out. I did not check the sidetone generator. Now I have the DSP installed and it seems to be working. Problem is my sidetone is gone! I pulled the DSP and put jumpers in to bypass the headers - no help. I had W0WKS listen on 10m while I sent a CW message - I'm sending. I hooked up a 1/8 stereo plug to the CW jack and sent CW - the audio cuts out and the rf meter indicates a signal is being transmitted - just no sidetone. Help? 73 de Ken KGØWX - Flying Pigs #-1055 Elecraft K2 #4913 - Kadiddlehoppers #11,807 ___ 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] 2T-gen trouble
Just put together the 2T-gen kit. Testing, I can only hear 1900 Hz tone. On my HO-5404 monitor scope I can only see one tone. I have double checked component placement and solder job. All looks well. Any suggestions for trouble shooting ? 73 Tim W1WCI ___ 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] RE: KXPD1 manual ...
Thanks to all who reminded me that the KXPD1 manual is a PDF file that is on the Elecraft Web Site g ... 72/3, Wey ... K8EAB Metro Atlanta, GA ___ 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] 4Sqrp's KD1JV swr/pwr meter sold out!!
Hi Gang, Our 2nd run of KD1JV swr/pwr meters is now sold out. That is the bad news---the good news is that the 4Sqrp group is now discussing another run of these neat little kits. However, we are just in the discussion stage and nothing has been decided. Again a big thanks to Steve for allowing us to kit this meter. Also, a huge thank you, to all of those that have purchased the kit. As you know, the proceeds from the sell of this kit, plus the sell of the tenna dipper kits are what finances OzarkCon one of the premier qrp forum events of the year! Incidentally, plans are now underway to make OzarkCon 2006 the biggest and best qrp forum to date!! So plan your spring getaway around the 28th and 29th of April in beautiful mid-America!! tnx agn es 72, Bart http://4sqrp.com/ -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.344 / Virus Database: 267.11.13/126 - Release Date: 10/9/05 ___ 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] KI02
Hi all anyone out there upgraded to the 100 watt version. Looking for a KIO2 woking. Thanks David KR4OW K24320 __ Yahoo! Music Unlimited Access over 1 million songs. Try it free. http://music.yahoo.com/unlimited/ ___ 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] sal ammoniac
Where can I buy a small block of sal ammoniac to clean my soldering tip with? TNX es 73, Ken, WA4GHY ___ 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] Center Frequency when setting RTTY Filters
Since the ability to set filters when using the RTTY mode is different than LSB/USB if used for AFSK, what center frequency do you use? Perhaps I should rephrase this. When setting filters in the RTTY mode (the K2 defaults to the SSB filters when in RTTY mode unless RTTY filters are set) do you use 1000 Hz as the center frequency? Thanks and 73, Charlie, W0YG.. ___ 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] RSGB HF Convention
Have just returned from the RSGB HF Convention. My first visit last year was good, but this year it was even better. Lots of good mentions of the K2 in presentations. It was a pleasure meeting those with K2's and those either building or contemplating building one Great time. Maybe next year we can all get together on some more specific K2 programme. Best 73 Stewart G3RXQ ___ 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] 3 element beam
has anyone read the article at ARRL on qrp, recommendations to use a 3 element beam for milliwatt transmission instead of vertical ___ 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] Center Frequency when setting RTTY Filters
You want to set it to the center of the two tones you are using for AFSK. If 1000Hz is your Mark frequency, and 170Hz is your shift, then you should center at 1000-(170/2) or 915Hz. You can do this graphically with Spectrogram using the techniques detailed on the Elecraft Builders Resources pages. Set the cursors based on the AFSK tones from your RTTY modulator software or hardware. Then center the filter peak between the two cursors. hope this helps! - jeff wk6i At 10:43 AM 10/9/2005, Charlie, W0YG wrote: Since the ability to set filters when using the RTTY mode is different than LSB/USB if used for AFSK, what center frequency do you use? Perhaps I should rephrase this. When setting filters in the RTTY mode (the K2 defaults to the SSB filters when in RTTY mode unless RTTY filters are set) do you use 1000 Hz as the center frequency? -- Jeff Stai [EMAIL PROTECTED] Twisted Oak Winery http://www.twistedoak.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] sal ammoniac
Ken, Try any business that offers tools and supplies for Stained Glass work. 73, Don W3FPR -Original Message- Where can I buy a small block of sal ammoniac to clean my soldering tip with? TNX es 73, Ken, WA4GHY -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.344 / Virus Database: 267.11.13/126 - Release Date: 10/9/2005 ___ 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] 2T-gen trouble
Make sure the jumper block, JP1, is set to the T position. If that isn't it, check Q3, Q4 and U1B. On Sun, 09 Oct 2005 12:34:12 -0400, W1WCI [EMAIL PROTECTED] wrote: Just put together the 2T-gen kit. Testing, I can only hear 1900 Hz tone. On my HO-5404 monitor scope I can only see one tone. I have double checked component placement and solder job. All looks well. Any suggestions for trouble shooting ? ___ 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] K2/100 FOR SALE
Mint condition k2/100 for sale consisting of the following: k2 serial 4112 kpa100 100 watt amplifier ksb2 ssb adapter k160rx 160 meter receive knb2 noise blanker kdsp2 dsp unit fdimp finger dimple kat100 external auto tuner rs232 cable for connection to computer and kat100 dc cable all documentation md2 Microphone incl. clip (no stand) the nifty! mini-manual by n6fn for the k2 and accessories Original Elecraft price $1696.50 (does not include shipping, insurance and state tax) This k2/100 has all Modifications,and upgrades all completed by elecraft service and well as factory calibration. SHIPPED UPS BROWN AND INSURED CONTINENTAL US FOR $1650.00 Contact off List please Reggie k6xr in Southwest Bakersfield, CA. ___ 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] 3 element beam
Yes I have found that my three element 80 meter beam at 190 feet seems to slightly outperform my 30 foot vertical run with a four foot ground stake as a radial. I can easily hear signals that have a signal strength of one milliwatt. However I am experimenting with a full wavelength 80 meter vertical with 1.3 million pennies as the ground-plane. You have to use the old pennies, as the new ones are copper plated zinc, and will make galvanic noise. For the same reason, the pennies should be spot welded, not soldered, as the dissimilar metals in the solder also cause noise. Also feed line losses become a problem at these low power levels. I want every microwatt of my milliwatt. My tower is located seven miles away from the shack, so I use two parallel twelve inch copper pipes, spaced four feet apart to prevent arcing, and suspended sixty-three feet above the ground by Kevlar ropes to telephone poles every fifty feet. I circulate a mixture of 50/50 distilled water and ethylene glycol through the pipes for heat dissipation, and to prevent freezing. Are you actually a licensed Radio Amateur? You don't sign with your call, and your posted questions are getting progressively more bizarre. Paul N8NOV -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of mc Sent: Sunday, October 09, 2005 1:17 PM To: elecraft@mailman.qth.net Subject: [Elecraft] 3 element beam has anyone read the article at ARRL on qrp, recommendations to use a 3 element beam for milliwatt transmission instead of vertical ___ 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] K2/100 FOR SALE
On Sunday 09 October 2005 18:47, reggie mackey wrote: k160rx 160 meter receive I've seen this more than once lately and it had me doubting that I had really been transmitting on top band with my K2. It's a 160 m RX/TX with a second receive port, not just a 160 m receive module. Ian, G4ICV, AB2GR, K2 #4962 -- ___ 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] RE: very small antenna
[Original Message] ...Looking for a small (pack-away in a suit-case and going to bahamas on a cruise line for vacation antenna.) I found three on the Yahoo search that looked good. the buddiepole, the Ventura, the miracle whip each one claims to have all band and each one says has at least some gain The small portable antennas do not show gain over their full sized big brothers. For direct comparisons of portable;/packable antennas, see HFPack.com. Vertical antennas are compared at http://www.hflink.com/hfpack/antennas/shootoutvertical2002.html and horizontal antennas at http://www.hflink.com/hfpack/antennas/shootouthorizontal2002.html . Beside efficiency, of course one must be concerned about size and ruggedness. The Miracle Whip is quite small, and for some this outweigh its low efficiency. The Ventanna is helically wound with18 inch sections and is very rugged as well as doing well in the HFPack 20 meter Shootout. The Buddipole is a rugged antenna with tapped coils on rigid forms, rather than a more fragile BW Airdux (tm) style. Take a look at all the antennas on HFPack. I use a Superantenas MP-1, which in its small version can be carried inside its own loading coil/sleeve. I am informed that some travellers have been required to placed their MP-1's in checked baggage sic ethey might be used as a baton or club. (No one has yet made me do this with heavier -- much more suitable for clubbing -- laptop batteries.) Cortland KA5S ___ 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] KDSP2
John - N3DRK, I tested on the 40 meter band as you suggested. And YES the DSP module worked. So I guess the card is running as it should. Thanks for your advise. 73 Rolf SM0YQC ___ 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] FAQs - Iambic Paddles -- Show-n-Tell
As of this morning, I have received over 100 emails concerning the my iambic paddles. Thank you for your kind comments and feedback. There is no way I can respond to each individual email, so I consolidated all of the questions and posted them here: http://www.bellimelgroup.com/faqs_m1.htm This has been a fun project. 73 Jeff K9ESE ___ 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] Re: 2T Problem
Yes, suggestions that cause me to think! Checked, but the only numbers that were wrong were the ones on Q4 and Q3. They are now the way it was designed and every thing works fine! Thanks 73 Tim W1WCI Robert Friess wrote: Hi Tim, The first thing to do is to make sure that the jumper blocks are on the correct pins. If you have any doubt, just remove them completely. That condition is the same as tone on. One of the nice things about the 2T generator is that the two oscillators are identical except for the frequency determining resistors. You should be able to compare the voltages read on each pin of U1A to its corresponding pin on U1B and do the same thing on Q4 compared to Q2 and Q3 compared to Q1. This should help in finding the defective component. 73, Bob, N6CM ___ 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 magnetic screening kit?
I saw this mentioned on here a few days ago but I missed the original announcement, and can't see anything about it on the Elecraft site. Can anyone enlighten me please? Thanks, Fraser G4BJM _ Be the first to hear what's new at MSN - sign up to our free newsletters! http://www.msn.co.uk/newsletters ___ 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] 3 element beam
On Oct 9, 2005, at 2:16 PM, mc wrote: has anyone read the article at ARRL on qrp, recommendations to use a 3 element beam for milliwatt transmission instead of vertical For QRP, you want to use the best antenna possible, to make the maximum use of every watt. A beam certainly has a lot more gain than a vertical. Bill Coleman, AA4LR, PP-ASELMail: [EMAIL PROTECTED] Quote: Not within a thousand years will man ever fly! -- Wilbur Wright, 1901 ___ 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] 3 element beam
That goes for ANY power level, not just milliwatting. The gain of a beam can often (not always) squirt more power where you need it to go than a vertical. Sometimes the low take-off angle of a GOOD vertical can trump a beam, though. I have only one problem using a beam...one I can live with. Hi. Many QRP receivers are very hot with low noise. That coupled with my TH7DX at 60' means I can hear a lot of stations that would never be able to hear me. A beam gives you gain on both receive and transmit, but a 100 mW output signal effectively doubled or even quadrupled with a beam is still a pretty puny signal for the guy at the other end. But you never know. I have two rules: 1. Never tell them up front you are QRP. It's an ancient Black Magic incantation that makes people deaf. 2. Call every station you want to talk to regardless of the S-meter. The worst that can happen is they won't come back to you. I can't tell you how many QSOs I've had with 100 watters who were S3 to me and (because of Rule 1) I was S5 or greater to them with 5 watts or less. I might add a 3rd rule, but at the risk of stepping on some toes: 3. Stay away from QRP frequencies unless you are rock-bound. You will find a lot more activity and hams willing to dig deep for weak signals on the FISTS frequencies and the low end of the band of choice. FISTS guys even seem to be immune to the QRP Deafness Curse. Anyway, a beam is a great QRP accessory. Any time you have an opportunity to throw more metal higher in the sky, it can be worthwhile. BTW, I hope you are going to report back with your ham experiences aboard the boat. I was thinking that many of the recommendations you received for antennas ignore the fact that you are actually at sea. Many of the recommendations are going to fold right up in those conditions, though they would work fine in most portable conditions. Eric KE6US www.ke6us.com -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of mc Sent: Sunday, October 09, 2005 11:17 AM To: elecraft@mailman.qth.net Subject: [Elecraft] 3 element beam has anyone read the article at ARRL on qrp, recommendations to use a 3 element beam for milliwatt transmission instead of vertical ___ 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] 3 element beam
Well said Eric. Lots to think about for everyone. 73s john-n3drk - Original Message - From: EricJ [EMAIL PROTECTED] To: 'mc' [EMAIL PROTECTED]; elecraft@mailman.qth.net Sent: Sunday, October 09, 2005 5:55 PM Subject: RE: [Elecraft] 3 element beam That goes for ANY power level, not just milliwatting. The gain of a beam can often (not always) squirt more power where you need it to go than a vertical. Sometimes the low take-off angle of a GOOD vertical can trump a beam, though. I have only one problem using a beam...one I can live with. Hi. Many QRP receivers are very hot with low noise. That coupled with my TH7DX at 60' means I can hear a lot of stations that would never be able to hear me. A beam gives you gain on both receive and transmit, but a 100 mW output signal effectively doubled or even quadrupled with a beam is still a pretty puny signal for the guy at the other end. But you never know. I have two rules: 1. Never tell them up front you are QRP. It's an ancient Black Magic incantation that makes people deaf. 2. Call every station you want to talk to regardless of the S-meter. The worst that can happen is they won't come back to you. I can't tell you how many QSOs I've had with 100 watters who were S3 to me and (because of Rule 1) I was S5 or greater to them with 5 watts or less. I might add a 3rd rule, but at the risk of stepping on some toes: 3. Stay away from QRP frequencies unless you are rock-bound. You will find a lot more activity and hams willing to dig deep for weak signals on the FISTS frequencies and the low end of the band of choice. FISTS guys even seem to be immune to the QRP Deafness Curse. Anyway, a beam is a great QRP accessory. Any time you have an opportunity to throw more metal higher in the sky, it can be worthwhile. BTW, I hope you are going to report back with your ham experiences aboard the boat. I was thinking that many of the recommendations you received for antennas ignore the fact that you are actually at sea. Many of the recommendations are going to fold right up in those conditions, though they would work fine in most portable conditions. Eric KE6US www.ke6us.com -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of mc Sent: Sunday, October 09, 2005 11:17 AM To: elecraft@mailman.qth.net Subject: [Elecraft] 3 element beam has anyone read the article at ARRL on qrp, recommendations to use a 3 element beam for milliwatt transmission instead of vertical ___ 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] K2 magnetic screening kit?
Fraser, G4BJM wrote: I saw this mentioned on here a few days ago but I missed the original announcement, and can't see anything about it on the Elecraft site. Can anyone enlighten me please? --- Below is the original announcement from Wayne. Ron AC7AC --- The K2's VCO (voltage-controlled oscillator) may be susceptible to low-frequency modulation by very large power transformers, such as those in linear amp power supplies and antenna rotator controllers. Such modulation can usually be eliminated by simply moving the equipment away from the transceiver. In difficult cases, magnetic shielding can be used, and we've created a modification kit for this purpose (Order #K2VCOSHLDKT). The mod kit provides a smaller replacement core for transformer T5, a high-permeability ferrite sleeve, and associated hardware. The ferrite sleeve is installed over T5, greatly reducing the effect of nearby strong magnetic fields. In addition, slug-tuned inductor L30 must be electrically disabled since it, too, is affected by magnetic fields. With L30 out of the circuit, the VCO inductance can still be adjusted, if necessary, by slightly squeezing or spreading the turns of T5. The kit is priced at $10. For more information, see our parts order page: http://www.elecraft.com/order_form_parts.htm#K2%20Parts 73, Wayne, N6KR ___ 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] qrp, life without a Kwatt
.Quote: Never tell them up front you are QRP. It's an ancient Black Magic incantation that makes people deaf. yes I am very slow with code , for some reason have not got it up yet, so luckily I get only those who are the same. mike MC -- KB7DPC ___ 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] Poor Man's Spectrum Analyzer
The Poor Man's Spectrum Analyzer I'm building uses a varacter driven cable tuner as its front end. The cable tuner has an input impedance of 75 ohms. Most instruments have 50 ohm input impedance and my usage will be primarily with 50 ohm devices. Maybe it isn't worth worrying about, but I'm looking for a convenient way to convert from 75 ohm to 50 ohm input impedance. I've seen some writeups on building a 50 ohm to 75 ohm broadband unun, but the articles were incomplete (or my knowledge level is too low to recognize a complete article). The analyzer covers 5MHzto 500MHz. Does anybody have any advice? Leave it alone, build an unun, buy an unun, any other options? ___ 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 Report for October 9th, 2005
Good Evening All, First off: Happy Thanksgiving to all you folks North of the Border! I was listening to the Aurora Net based out of Abbotsford, British Columbia, Canada a few days ago. They were happy to have me QNI from Oregon cross mode on the KX1 I've been loaned. Worked quite well but they did require a relay. Not sure if it was me or if it was the NCS not catching my fist but all was well after the relay. They wished me a Happy Thanksgiving too. Very friendly group those Canadians in 4, 5, 6 and 7 lands ;) I listened on the KX1 for almost an hour until they finished up. Then I moved on to another contact with the KX1 until Patricia came home. I did experience a bit of difficulty with the Elecraft paddle unit starting to work itself loose. Made sending a little more interesting than necessary. Any hints? I plugged my Code Warrior paddles in to finish the QSO then went to dinner. Tonight I was a few minutes late for the beginning of the net due to the party for our local 90 year old. I turned on the rig and took off my coat only to have Mr. Hammond call me. I asked if he could call the net as I found my reading glasses and followed along. It is pretty tough for me to see the radio or the paper with the glasses which I use to drive! Getting old and my eyes are changing fast. Astigmatism and far sightedness means I can't see with them or without them! But with a series of lenses I seem to get along fine. Especially on the computer at a fixed distance. Soldering is most annoying! The propagation was pretty good on this end but I did have a few folks mention QSB. Poor Roger was having problems with his paddles so his call sign came out as variations on a theme ;) The weakest station to check in today was Ray from North Carolina. His antenna choices are not as good as the ones he has at home so I had to dig a bit deeper. The slant four at the end kept coming out as FV. But I finally got enough K2HY to figure out who it was. Lastly I got Bruce, W0QQS, in MN who is bravely holding Winter at bay. He told me it is in ND now so Ken should be a bit chilly. However Ken is one who sits in the live nativity scenes and laughs at the snow ;) What a collection we all make! Thanks for the fun, guys! Gary thinks we may be doing something right. He wrote me a note two weeks ago when I mentioned the wall of sound in response to my first true CQ. I listen to other nets and try to emulate their bonhomie. Seems to have made a difference. At 2303z (sorry for being late guys) on 14050.36 kHz (the difference between Tom's and mine): N0SS - Tom - MO - K2 - 008 W1TF - Ty - GA - K1 - 1423 QNI #10! VE1RGB - Gary - NS - K2 - 2519 K1EV - Bill - CT - K2 - 2152 QNI #55!! N7NLU - Karl - OR - K2 - 4227 FB sig Karl considering you are over the ridge from me ;) W0CZ - Ken - ND - K2 - 1031 K3IDX - Roger - KX1 - 416 AK2B - Tom - NY - K2 - 4482 Also a fine signal into OR K4BEH - Pat - GA - his K2 #5061 is still a work in progress. Good luck on the build! K2HYD/4 - Ray - NC - KX1 - 608 KJ7BS - Mark - AZ - K2 - 439 W0QQS - Bruce - MN - K2 - 3646 Thank you again for a job well done Mr. Hammond. Without you in the middle of the country my job becomes more difficult. Today we had great propagation in stark contrast to last week where it was tough to get Indiana and Forest Grove, Oregon on the list. As ever if there are any errors in the above listing please write with your corrections. 73 all, Kevin. KD5ONS (Net Control Operator 5th Class) -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.344 / Virus Database: 267.11.13/126 - Release Date: 10/9/2005 ___ 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] Center Frequency when setting RTTY Filters
On Oct 9, 2005, at 1:43 PM, Charlie, W0YG wrote: Since the ability to set filters when using the RTTY mode is different than LSB/USB if used for AFSK, what center frequency do you use? Perhaps I should rephrase this. When setting filters in the RTTY mode (the K2 defaults to the SSB filters when in RTTY mode unless RTTY filters are set) do you use 1000 Hz as the center frequency? I went through this a few months ago. Initially, I set things up for the Low Tones (1275 / 1445). However, when I went to reprogram the KDSP2 filter, I found that it would only move to center frequencies that were multiples of 100. This made it impossible to set the filter in the center (1360). Now, you must know that I have my K2/100 modified with the KI6WX 1.9 kHz filter. It's really like the old stock filter - about 2 kHz wide, but with less passband ripple. If you have a wider filter, you might consider using higher frequencies. This places the second harmonic higher in the passband, outside the filter range. After some consideration of the problem, I ended up picking 1500 Hz as my center frequency, and placing my tones at 1415 and 1585. The next problem I had is that I could center the adjustable bandwidth filter on both modes (RTTY and RTTY REV). This was solved by modding the BFO to increase the range. Adjusting the BFO range is kinda tricky. As you increase the range, the steps the BFO move become courser, so there's more opportunity for slight frequency variations as you change filters or switch modes. I managed to increase the range just enough to get all the passbands centered on 1500 Hz. That's all you want -- just enough range to get those frequencies set. For this reason, using a frequency like 1500 Hz may be better than trying to use the standard high tones. The adjustable bandwidth filter is a real benefit on RTTY. With just a few adjustments, you can get some really nice filters set up for digital use -- something that would have cost a lot of money in other rigs. For RTTY, I use the progression OP1, 1.0 kHz, .5 kHz and .3 kHz. OP1 is good for scanning the bands, 1.0 is good for tuning in a crowded band, and .5 kHz pretty much is single-signal. .3 is kinda narrow for RTTY, and it will clip some of the signal -- but it does work great for PSK31. For CW, I use the odd progression of 1.0 kHz, .4 kHz, .16 kHz and OP1. I don't like tuning around the CW bands with OP1 unless it is really vacant, like up on 10 or 15 meters these days. About the only downside of running RTTY with the K2/100 is that you can only use about 20-35 watts. The KPA100 will get HOT very quickly. PA efficiency gets really poor at this level. Bill Coleman, AA4LR, PP-ASELMail: [EMAIL PROTECTED] Quote: Not within a thousand years will man ever fly! -- Wilbur Wright, 1901 ___ 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] Poor Man's Spectrum Analyzer
Hi Matt, You can use two resistors to make the signal source think it is terminated in 50 ohms and make the SA think it is being driven from a 75 ohm source. I posted a diagram of the circuit here: http://w5big.home.comcast.net/50ohm_to_75ohm.gif The first resistor is 43.3 ohms in series with the input to the SA. The second resistor is 86.6 ohms to ground at the signal input. (87 ohms isn't a standard 5% value, but you could put two 43 ohms, 5% resistors in series). 1% metal film resistors are even better if you are getting into the UHF region. The leads should be as short as possible. With this arrangement, you have an easy-to-build wideband matching circuit without transformers. The loss is 4db which can be accounted for when you calibrate the SA. 73/ Bob - W5BIG - Original Message - From: Matt Osborn [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Sunday, October 09, 2005 9:42 PM Subject: [Elecraft] Poor Man's Spectrum Analyzer The Poor Man's Spectrum Analyzer I'm building uses a varacter driven cable tuner as its front end. The cable tuner has an input impedance of 75 ohms. Most instruments have 50 ohm input impedance and my usage will be primarily with 50 ohm devices. Maybe it isn't worth worrying about, but I'm looking for a convenient way to convert from 75 ohm to 50 ohm input impedance. I've seen some writeups on building a 50 ohm to 75 ohm broadband unun, but the articles were incomplete (or my knowledge level is too low to recognize a complete article). The analyzer covers 5MHzto 500MHz. ___ 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] Center Frequency when setting RTTY Filters
On Oct 9, 2005, at 2:30 PM, Jeff Stai wrote: You want to set it to the center of the two tones you are using for AFSK. If 1000Hz is your Mark frequency, and 170Hz is your shift, then you should center at 1000-(170/2) or 915Hz. If you do this, don't use OP1 as your FL1 filter. The second harmonic of your tones will be in the passband when you are transmitting, otherwise. I recommend higher frequencies. I ended up using 1500 Hz as the center of my RTTY filter passband. Bill Coleman, AA4LR, PP-ASELMail: [EMAIL PROTECTED] Quote: Not within a thousand years will man ever fly! -- Wilbur Wright, 1901 ___ 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] Elecraft CW Net Report for October 9th, 2005
I checked in to the ECN today. Interesting! I will be checking in on a weekly basis. CW speed was a little fast for me, but it gives me practice to copy at higher speeds. My keying was not good today (some days I can't send CW for my life) so I commend NCS for copying me. Mark Saunders, KJ7BS Glendale, AZ FISTS # 2972 Elecraft K2 S/N 539 If it aint fun, You aint doing it right. AZ ScQRPions -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Kevin Rock Sent: Sunday, October 09, 2005 7:44 PM To: Elecraft Subject: [Elecraft] Elecraft CW Net Report for October 9th, 2005 Good Evening All, First off: Happy Thanksgiving to all you folks North of the Border! I was listening to the Aurora Net based out of Abbotsford, British Columbia, Canada a few days ago. They were happy to have me QNI from Oregon cross mode on the KX1 I've been loaned. Worked quite well but they did require a relay. Not sure if it was me or if it was the NCS not catching my fist but all was well after the relay. They wished me a Happy Thanksgiving too. Very friendly group those Canadians in 4, 5, 6 and 7 lands ;) I listened on the KX1 for almost an hour until they finished up. Then I moved on to another contact with the KX1 until Patricia came home. I did experience a bit of difficulty with the Elecraft paddle unit starting to work itself loose. Made sending a little more interesting than necessary. Any hints? I plugged my Code Warrior paddles in to finish the QSO then went to dinner. Tonight I was a few minutes late for the beginning of the net due to the party for our local 90 year old. I turned on the rig and took off my coat only to have Mr. Hammond call me. I asked if he could call the net as I found my reading glasses and followed along. It is pretty tough for me to see the radio or the paper with the glasses which I use to drive! Getting old and my eyes are changing fast. Astigmatism and far sightedness means I can't see with them or without them! But with a series of lenses I seem to get along fine. Especially on the computer at a fixed distance. Soldering is most annoying! The propagation was pretty good on this end but I did have a few folks mention QSB. Poor Roger was having problems with his paddles so his call sign came out as variations on a theme ;) The weakest station to check in today was Ray from North Carolina. His antenna choices are not as good as the ones he has at home so I had to dig a bit deeper. The slant four at the end kept coming out as FV. But I finally got enough K2HY to figure out who it was. Lastly I got Bruce, W0QQS, in MN who is bravely holding Winter at bay. He told me it is in ND now so Ken should be a bit chilly. However Ken is one who sits in the live nativity scenes and laughs at the snow ;) What a collection we all make! Thanks for the fun, guys! Gary thinks we may be doing something right. He wrote me a note two weeks ago when I mentioned the wall of sound in response to my first true CQ. I listen to other nets and try to emulate their bonhomie. Seems to have made a difference. At 2303z (sorry for being late guys) on 14050.36 kHz (the difference between Tom's and mine): N0SS - Tom - MO - K2 - 008 W1TF - Ty - GA - K1 - 1423 QNI #10! VE1RGB - Gary - NS - K2 - 2519 K1EV - Bill - CT - K2 - 2152 QNI #55!! N7NLU - Karl - OR - K2 - 4227 FB sig Karl considering you are over the ridge from me ;) W0CZ - Ken - ND - K2 - 1031 K3IDX - Roger - KX1 - 416 AK2B - Tom - NY - K2 - 4482 Also a fine signal into OR K4BEH - Pat - GA - his K2 #5061 is still a work in progress. Good luck on the build! K2HYD/4 - Ray - NC - KX1 - 608 KJ7BS - Mark - AZ - K2 - 439 W0QQS - Bruce - MN - K2 - 3646 Thank you again for a job well done Mr. Hammond. Without you in the middle of the country my job becomes more difficult. Today we had great propagation in stark contrast to last week where it was tough to get Indiana and Forest Grove, Oregon on the list. As ever if there are any errors in the above listing please write with your corrections. 73 all, Kevin. KD5ONS (Net Control Operator 5th Class) -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.344 / Virus Database: 267.11.13/126 - Release Date: 10/9/2005 ___ 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:
