I'm trying to figure out what exactly I need in order to amplify a power of an analog signal, generated using a function generator (in the range of 100 kHz - 4 MHz, with the max voltage output of 7V), in order to send it to an antenna (50 ohm), so the output signal has around 50 watts in power.
I suppose I need to use an amplifier, but I'm not sure should it be an op amp, a power amp or something completely different.
Researching has lead me to amps like: OPA455, OPA462, OPA552 or LM675 (from TI search page), but I'm not sure if I'm on the right track. Are those the kind of amplifiers I need?
I guess I also need a DC power supply of around 50V if I want to achieve 50 watts with an amplifier (50V * 50V / 50 ohm == 50 watts)?
Also, is there any readily available device/kit that does this amplification already, so I can avoid crafting an amp myself (and introducing a potential hazard point)? :)
Any information is welcome, in form of comments, links, etc. Thank you a lot in advance.
EDIT: Just to clarify some things, I'm not trying to building any kind of a radio station and the device itself will probably be enclosed in a Faraday's cage of sort, to avoid any legal issues and interference with local radio stations.