RE: : [Elecraft] K2, LP-100 and HRD etc
Hi Larry, That's even better, but cables get old and get water in them too. Mike -Original Message- From: Larry Phipps [mailto:[EMAIL PROTECTED] Sent: Wednesday, 5 April 2006 11:47 PM To: Mike Walkington Cc: Elecraft-Reflector Subject: Re: : [Elecraft] K2, LP-100 and HRD etc You won't need to do that. I'm planning to allow you to enter a feedline characteristic Z, length and loss/100 ft., and then add a button that will allow you to display all the parameters as at xmtr or at antenna. You could use any feedline type or length that you know the published specs on. I am also thinking about adding the feedline data entry capability to the standard LP-100 VCP (Virtual Control Panel). I would offer the ability to enter several feedlines, which would be selected based on frequency. I am considering allowing you to upload the feedline table to the LP-100 hardware as well, so that it would display correct antenna Z if desired. Since the LP-100 has a built-in frequency counter, the table selection would be automatic. I may also add a menu to allow the table to be entered at the hardware. For this to work in the hardware or VCP, you would have to determine the sign of X experimentally and enter it on the Vector display using the Up/Dn buttons. This would only have to be done once for each antenna. The Plot program does this automatically, by looking at the slope of the X plot for each data point. Some of this will be future updates of firmware or software. You can update the LP-100 firmware and software over the internet, and there will be regular updates offered for both. Updates will be free for life, although there will be charges for add-on hardware if it becomes necessary to add hardware for a particular option in the future. All updates will be backward compatible with the original hardware, however. 73, Larry N8LP ___ 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, LP-100 and HRD etc
Neat, So will it be possible to do one scan with a 50ohm load terminating the cable, then do it again with the antenna connected, subtract the plots and end up with the antenna characteristics? Mike VK1KCK K1 #2599 Message: 20 Date: Tue, 04 Apr 2006 13:56:03 -0400 From: Larry Phipps [EMAIL PROTECTED] Subject: Re: [Elecraft] K2, LP-100 and HRD etc To: Mike Walkington [EMAIL PROTECTED] Cc: Elecraft-Reflector elecraft@mailman.qth.net Message-ID: [EMAIL PROTECTED] Content-Type: text/plain; charset=ISO-8859-1; format=flowed The LP-100 Plot software does this already if you use DXlabs Commander (freeware) or TRX-Manager. It doesn't matter what rig is selected, it will work with any supported rig. You set the start and stop frequencies and step size, then hit Run. The program controls the rig and gathers the data. You can select the parameters to plot either before or after running, and save the plots to a file in CSV format for later recall or export to a spreadsheet. It may be possible to add HRD, but I don't see a linking component for them that accepts all the incoming commands needed. You can see a screen capture of the LP-100 Plot software at www.telepostinc.com/lp100.html, along with a comparison to a couple of antenna analyzers I own as well as my HP87510A VNA. 73, Larry N8LP ___ 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, LP-100 and HRD etc
All, It seems to me that is should be possible to write a piece of software that controls the K2 transmit frequency (steps it up in increments), reads the LP-100 SWR, power etc, and produces plots for each ham band of frequency versus SWR, power etc. It would sure be nice if this was built into HRD. Mike VK1KCK K2#2599 ___ 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, LP-100 and HRD etc
The LP-100 Plot software does this already if you use DXlabs Commander (freeware) or TRX-Manager. It doesn't matter what rig is selected, it will work with any supported rig. You set the start and stop frequencies and step size, then hit Run. The program controls the rig and gathers the data. You can select the parameters to plot either before or after running, and save the plots to a file in CSV format for later recall or export to a spreadsheet. It may be possible to add HRD, but I don't see a linking component for them that accepts all the incoming commands needed. You can see a screen capture of the LP-100 Plot software at www.telepostinc.com/lp100.html, along with a comparison to a couple of antenna analyzers I own as well as my HP87510A VNA. 73, Larry N8LP Mike Walkington wrote: All, It seems to me that is should be possible to write a piece of software that controls the K2 transmit frequency (steps it up in increments), reads the LP-100 SWR, power etc, and produces plots for each ham band of frequency versus SWR, power etc. It would sure be nice if this was built into HRD. Mike VK1KCK K2#2599 ___ 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
