|
I'm using a Blonder-Tongue agile modulator to broadcast TV in my house, so I'm curious about this, too.
1. How would you know whether "first responders" or anyone else is using a particular frequency in your area?
2. How am I to know whether this modulator exceeds the 100 miliwatt maximum? I just tried walking out into the yard with a handheld Panasonic Travelvision in my hand. The signal starts to fade maybe 100 feet from the house. At about 200, it's snowy but still watchable. Which tells me I might interfere with someone camped in my yard, but probably not the neighbor across the road.
I also have an old TV field strength meter that I bought for fun years ago. Who knows how accurate it is, but it does register the signal and move the needle when you turn the antenna, etc. Its scale says my signal is around .7 microvolts inside the house, whatever that means.
Phil
|