SSTV Presentation by KC4SIT and N1DAY 02/11/2019 Ernie and I are having a lot of fun doing our new SSTV presentation to a variety of local radio clubs. As a number of people have been asking for the slides, here they are. Feel free to use them as you wish. SSTV SoftwareFinal.pdf 73 N1DAY
Ernie and I are having a lot of fun doing our new SSTV presentation to a variety of local radio clubs. As a number of people have been asking for the slides, here they are. Feel free to use them as you wish. SSTV SoftwareFinal.pdf 73 N1DAY
Details and power transfer 02/04/2019 I had a conversation with a ham last week who spent his career studying ways to improve RF power transfer. It was pretty interesting listening to him talk about all of the problems his team encountered at GE and some of the solutions they came up with. My take away from the conversation was that each little detail matters because the change in one detail can impact everything down the line as RF travels from transmitter down a piece of coax, through a matching unit, up a coil, and out onto an
I had a conversation with a ham last week who spent his career studying ways to improve RF power transfer. It was pretty interesting listening to him talk about all of the problems his team encountered at GE and some of the solutions they came up with. My take away from the conversation was that each little detail matters because the change in one detail can impact everything down the line as RF travels from transmitter down a piece of coax, through a matching unit, up a coil, and out onto an
Down There - a return to 2200M 01/30/2019 About this time last year, I bought a 300 watt P3000 Hafler amplifier to power my QRP Labs Ultimate 3S transmitter on the 2200M band. On my first attempts at 2200M using a rebuilt Hafler P1500 150 watt amplifier, I got my signal out, but at an estimated 0.4 watts EIRP, my signal was only being heard consistently by a handful of stations every night. All were close in to my QTH. After acquiring the higher power amplifier, I got tied up in the lightbulb experiments and pretty much abandoned
About this time last year, I bought a 300 watt P3000 Hafler amplifier to power my QRP Labs Ultimate 3S transmitter on the 2200M band. On my first attempts at 2200M using a rebuilt Hafler P1500 150 watt amplifier, I got my signal out, but at an estimated 0.4 watts EIRP, my signal was only being heard consistently by a handful of stations every night. All were close in to my QTH. After acquiring the higher power amplifier, I got tied up in the lightbulb experiments and pretty much abandoned