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

[Baidoo-Williams, Henry E]

Hello ,

Thanks a lot Marcus and Matt. Marcus, can you please share the schematics of 
your custom filter board with distributed gain and filtering? That will be of 
much help and we can easily incorporate it knowing there are no bugs. And can 
you help us with the antenna you are using? I called ettus and they don't have 
any antenna to go with the basix RX/TX and they have no recommendations also. 
Can anyone help.

Respectfully,
H. E. Baidoo-Williams,
GRA, University of Iowa

-----Original Message-----
From: address@hidden [mailto:address@hidden On Behalf Of Marcus D. Leech
Sent: Monday, October 08, 2012 4:36 PM
To: address@hidden
Subject: Re: [Discuss-gnuradio] Help on choice of daughter board for 40-50MHz 
experiments

> 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



_______________________________________________
Discuss-gnuradio mailing list
address@hidden
https://lists.gnu.org/mailman/listinfo/discuss-gnuradio