|How to pass the time while WSPRing|
Leading up to last weekend the sunspots were at an all time high along with the solar flux......it seemed that the radio god's were smiling on us again!! I turned on the K3 on the weekend and it was kinda a down, it seemed that 20 meters may not had been as hot as I hoped it to be. I then turned to WSPR and thought I would give that a go on 20 meters as well. I wanted to put this solar hot spot to the test.....so instead of setting the K3 on the standard 3 watts output I dropped it down to 500mw's. I gave it a go and was surprised at the good
|Dipole at 500mw's|
actual power out on the antenna is??? Well according to VK1OD.NET who offers a great RF transmission line loss calculator I could get a good idea. So I punched in all the necessary information I was told my setup is about 95.23% efficient. Well I punched the numbers into Google and it came up with 95.23% of (500 milliwatts) = 0.47615 watts. So I was pumping out 476mw's into my European contacts on WSPR.
|H900 on RX and dipole on TX 500mw's|
If you are a frequent user of WSPR then one knows it basiclly can run on it's own collecting data...so what does the ham do during this down time..........start building his KAT100 antenna tuner of coarse!!
|Dipole on RX dipole on TX 200mw's|
|H900 on RX dipole on TX 200mw's|