Quote Originally Posted by kb2vxa View Post
"...there is no sort of filtering in the module itself."

OK, and what is there to prevent this abortion from spitting out harmonics and spurs from DC to light?

"A concept brought back from the dead to haunt living Islanders with craziness from the Other Side.
The Rudy Zone. "

Yeah, deja vu all over again.
Hello.

That is what I discovered at first. ;) See the CB radio entry.
The VX-7R set for its lowest power setting works wonders.
Even at its highest power setting it is within limits.
But, at 2 watts it is perfect, it puts no more power out after that.
I am thinking of putting together an amplifier and power supply that is the size of a full sized talkie like the MX or the like.
Strip out everything but the speaker and microphone and and mount a 15 watt RF amplifier in it as well as an audio amp.
The original battery packs were NiCad, the biggest packs with modern chemistry cells can provide the level of power needed.
And, again, the FT-817 uses the very same concept, one output section for 1.8 to 450MHz.
The trick is to start with a clean signal, add band filtering just like one would do with an HF amplifier, and go for it.
In effect, a super wide band version of this.
http://www.mirageamp.com/Product.php?productid=BD-35
At 15 watts vs 5 watts for what the talkie can do on its own that is quite a bit of gain.
But, most modern talkies get hot on high power quickly.
Set one at 300 milliwatts, set this thing on low, and you have 5 watts, and you can power your talkie, and you have 5 watts of audio.
And, it is possible to add P-25 but like the Amateur radio itself, this is NOT FCC approved.
So, I am not doing anything new, stuff like this is already for sale.
I am doing this in the cheap.