Sure. Are you sure you can't hook your UHF board up to a basic tx or rx at least for prototyping? What's your gadget's IF?
****************************************** In fact what I need is to convert 2 CW coherent signals (beacon)IF in UHF range (somewhere between 0.5 to 1GHz , through a very good phase noise LO, depending on front end) to a new IF at 10.7 IF (it will be crystal filtered and then routed by coaxial cable to basic RX card or perhaps directly to motherboard). *********************************************************** If you're sure you need a new board, take a look at the schematics for some of the other daugtherboards. http://gnuradio.org/trac/wiki/USRP %********************************************************* Thats the problem. They are wide bandwidth cards and in my application the signal has only 52dBHz CNR at best and signal power is contained completely in a 50Hz bandwidth (so narrow bandwidth is at premium). That is noise power would overload ADC's and limit dynamic range. Also I am interested in measuring the amplitude and relative phases (so no AGC at all and other stuffs that can impair relative phases). %*********************************************************** The ROM id's the card to the system. You need it. It costs about $0.50. %********************************************** Thanks. I know it's a cheap component. Just wondering for the increased complexity (mainly side effects!!). Please give me some clues (pointer to information) to know what should be written in the ROM and consequences in the devices programing. %****************************************** Thank very much for answering my questions, Diana -- Posted via http://www.ruby-forum.com/. _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
