Re: [Discuss-gnuradio] Help on choice of daughter board for 40-50MHz experiments

[Marcus D. Leech]

> On Mon, Oct 8, 2012 at 11:54 AM, Baidoo-Williams, Henry E
> <address@hidden>  wrote:
> > We are looking for a daughterboard to run experiments within the range of
> > 40-50MHz. We have used the basic Tx and basic Rx before but just for routing
> > signals to an oscilloscope probe. Has anyone got any experience with actual
> > transmission and receiving with the basic TX/RX boards? We have not tested
> > yet because we are yet to purchase LF antennae. Any experience with these
> > will be of much help.
>
> You can use the Basic RX and TX for those frequencies.  You will
> probably want to put filters between the antenna and the boards for
> your specific frequencies of interest.
>
> Matt
I'll add "and some gain".

I use a BASIC_RX on a USRP2 (same sample rate as the N2XX) for a 
riometer operating between 25MHz and 45MHz.  For the project, we
  built a custom filter board with distributed gain and 
filtering--doing so helps with any possible aliasing problems, and helps 
with
  sensitivity.




--
Marcus Leech
Principal Investigator
Shirleys Bay Radio Astronomy Consortium
http://www.sbrac.org