Re: [K3S] mW TX for WSPR

Posted by donovanf on May 16, 2017; 9:40pm
URL: http://elecraft.85.s1.nabble.com/K3S-mW-TX-for-WSPR-tp7630731p7630732.html

Hi Bret,


When using the DXplorer.net simultaneous receive measurement
system, its best if you have the capability to start your testing
by simultaneously transmitting through a Magic-T combiner
into a single antenna.


In less than 30 minutes you'll have enough data from DXplorer.net
to calibrate out any power output difference between the two
transmitters. After you've completed the calibration you're ready
to connect each WSPR transmitter to the antennas under test.


73
Frank
W3LPL

----- Original Message -----

From: "MaverickNH" <[hidden email]>
To: [hidden email]
Sent: Tuesday, May 16, 2017 6:37:31 PM
Subject: [Elecraft] [K3S] mW TX for WSPR

I'm trying to fiddle the TX power on my K3S using WSJT-X WSPR 1.7 on a 43ft
Vertical to match the 200 mW output of a WSPRlite over a random wire dipole
antenna, using the DXplorer.net simultaneous RX measurement system
https://tinyurl.com/mthms72 . Is TX wattage continuous with rotation of the
PWR knob? It has 0.1W decrements and I seem to find equal performance
between 0.6 and 0.7W on the K3S and was curious if halfway between 0.6 and
0.7W as I rotate the knob is 0.65W? I can imagine precision of TX power
isn't accurate to more than +/1 0.1W but thought I'd inquire.

Bret/N4SRN



--
View this message in context: http://elecraft.365791.n2.nabble.com/K3S-mW-TX-for-WSPR-tp7630731.html 
Sent from the Elecraft mailing list archive at Nabble.com.
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft 
Help: http://mailman.qth.net/mmfaq.htm 
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net 
Please help support this email list: http://www.qsl.net/donate.html 
Message delivered to [hidden email]

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [hidden email]