Re: [Discuss-gnuradio] Attenuators ?

[Berndt Josef Wulf]

On Friday 08 December 2006 08:40, Shravan Rayanchu wrote:
> Hello everyone,
>
> I want to be able to capture RF data from one wireless card using
> gnuradio without any external interference. I was thinking of using an
> attenuator (with SMA or BNC connectors) one end of which I can connect
> to a wireless card and the other end to gnuradio board. I have some
> PCMCIA wireless cards which have the BNC-F interface.
>
> Two questions:
>
> 1. What is the minimum attenuation required so that I dont end up
> frying the boards?

You should be save by inserting 40db attentuation.

> 2. I would like to have the attenuation to be "tunable". Do you know
> of any tunable attenuators (preferably low cost) which fit my
> requirements?

Have a look on ebay. There are plenty of adjustable (not frequency tunable) 
attentuators and fixed attentuators for sale.

cheerio Berndt