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Showing posts with label power meter. Show all posts
Showing posts with label power meter. Show all posts

Sunday, 12 January 2014

Weighing scales? No, Meter Scales!

Well,

No after all the effort and learning that went into the 4M and 6M linear, I finally decided that I either needed to invest some money in all the correct bits to make one properly, or I needed to buy something. I ended up purchasing this:



The unit is currently propped up by an old computer and stuck on the floor - the amplifier seems to be a most excellent piece of equipment; I have had mine configured for 25W of drive and I am getting the expected levels of RF out on both 50MHz and 70MHz i.e. just over 300W.

I wanted to have a good power meter on the back end of the amplifier, but didn't want to make another one like my proper homebrew meter from here:

http://g0mgx.blogspot.co.uk/2012/11/scaling-heights-of-power.html

so I ended up creating a new scale for one of my mechanical meters I have. I haven't changed any of the internal workings jut made a scale with the numbers on that I wanted; n the high power range before you had to double the reading on the scale and the original scale was also very cluttered with a number of different number sets, here's the new one:


Its printed well and looks great in the meter. I am very pleased with the result - this has been created using software by Tonne Software:

http://tonnesoftware.com/

So all in all it's looking just great.

Good, egh?