Attenuators?

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?

  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?

Thanks a ton!

Shravan

On Friday 08 December 2006 08:40, Shravan Rayanchu wrote:

  1. What is the minimum attenuation required so that I dont end up
    frying the boards?

You should be save by inserting 40db attentuation.

  1. 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