Hello GB,

So you drop from 20 Gp (db) at 30 MHz to 8 Gp (db) at 100 MHz
Would not have been my choice.

BTW, is your equipment FCC type accepted for USA usage on the commercial FM
frequencies (as required)

Regarding the device choice. I think the designers reason for using the
THA15 is that he found a very inexpensive source for the device and he
already had a 40w exciter in production. It was a suitably inexpensive
device.



FCC approval not required if used outside the US.

We are not based in the US.

My company is a re-seller for NRG products among others.

However frequency stability, harmonic attenuation and spurious products
would probably meet type approval spec in the US. Not sure how tough
your EMC and or electrical safety requirements are but it would probably
meet those to after looking at some of the budget end equipment that has
FCC type acceptance.

I just love those Part-15 Talking House transmitters.

Does the FCC still allow self approval on certain equipment?
--
Philip de Cadenet G4ZOW
Transmitters 'R' Us
http://www.transmittersrus.com