Whilst that is all true, single-output 'boosters' do exist. Furthermore, even the multi-output 'distribution amplifiers' usually have an appreciable amount of gain between the input and each of the outputs, so do more than simply maintain the signal strength which would exist if the aerial were connected to just a single TV.
Indeed so. The same would obviously be (functionally) 'desirable' for a multi-output ('distribution') one, but it would probably usually be considered to be impractical/inappropriate to have multiple feeds to individual TVs from a mast-top distribution amplifier!
That doesn't surprise me, since I've had to do similarly here - as I said, my aerial is easy line-of-site to the local repeater (probably only about 10 miles away), so that the signal strength is very high, even without amplification.
On that basis, I have decided that the lower value must be the radio and the higher, the TV.
No that is the line power available to sent to a masthead amplifier via the coax. That is in addition to its own power requirements. Probably several watts including power supply losses.Well, if that is remotely like a fair indication of how much power it actually 'draws' from the 230V supply, then that 0.3W (i.e. 3,333 hours for 1kWh) suggests that I probably wasn't far off when I suggested that the running costs would be "trivial"
Kind Regards, John
Fair enough.
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