[Discuss-gnuradio] Re: VHF Transmitter

[Engin Karabulut]

Ed Criscuolo wrote:

> Dimitris Symeonidis wrote:
>> What about BasicTX, which does 1-250MHz?
>> 
> 
> 
> The 250 MHz spec on the BasicTX is somewhat misleading.
> Although the analog portion (basically the transformer)
> is rated to that, the D/A converter is only running at
> 128 Megasamples/sec. Nyquist says I can only use that
> to synthesize up to a 64 MHz signal.  Beyond that, I would
> have to under-sample and use one of the aliases.  Essentially,
> to get 145 MHz, I would have to run at a lower frequency
> and try to use one of the upper aliases and a high-pass
> filter to get 145 MHz.
> 
> Is this practical?  Is there enough energy there to have
> a decent S/N ratio after filtering?
> 
> @(^.^)@  Ed

WBX0510 board will be released soon, you can wait it.