Hi Dale, I'm glad to hear that my project is doable with ROACH hardware. We already have done the RFI study and we have identified the bands where is presented the most interference. Fortunately, these are not a significant part of total range of frequencies. So, we are thinking using notch filters in these frequencies.
Regards, JC 2016-03-29 10:56 GMT-05:00 Gary, Dale E. <dale.e.g...@njit.edu>: > Hi Juan Camilo, > > This is certainly doable with ROACH hardware. Before embarking on it, > though, you should do some tests of the radio-frequency interference (RFI) > environment there. Your target frequency range is one of the toughest in > terms of RFI, so you may be frustrated in your goal even if everything > works well. The details of hardware implementation will depend a lot on > your choice of frequency range, so the check of RFI should be done first. > After the study, you can either restrict the frequency range or contemplate > using notch filters for the worst offenders (generally not cheap, though). > > Regards, > Dale Gary > > On Tue, Mar 29, 2016 at 11:42 AM, Juan Camilo Guevara Gomez < > jcgueva...@unal.edu.co> wrote: > >> Dear all, >> >> Let me introduce myself, my name is Juan Camilo Guevara, I am a Master >> Student in Astronomy at the National University of Colombia. I am working >> in the design and implementation of a radio interferometer of two elements >> to observe the Sun in a range of frequencies between 100 MHz and 1 GHz. The >> main idea is observing the Sun with a high spectral and temporal >> resolution, therefore the data acquisition have to be in the total of the >> bandwidth, preferably simultaneously. The Roach Hardware has been thought >> as the best system to programming of the wished features. >> >> I would like to ask you two things, the first one is what do you think >> about the project and its feasibility to be developed with ROACH system. >> And the second one, is about if someone have a ROACH 1 system that it is >> not being used and if exist any posibility that it be donated or sold by a >> symbolic value, safely this would be a crucial piece in the appropiation >> and development of technology applied to scientific research. >> >> Thank so much, >> >> >> Juan Camilo >> > >
