Hebert, There is a spectrum analyzer group that has just done a 1 Ghz unit that uaed a laptop fpr display. This is the group spectrumanalyzer@yahoogroups.com=20 This is a very good SA not a piece of junk. look at this URL http://www.scottyspectrumanalyzer.com/ Derward Myrick KD5WWI ----- Original Message -----=20 From: "Herbert Graf" To: "Microcontroller list - Public." Sent: Tuesday, June 28, 2011 10:00 AM Subject: [EE] Build a spectrum analyzer > So, in my huge amounts of free time I've been thinking that the one area > of electronics I don't really have much experience is radio. > > I've been experimenting and having some fun, but I've convinced myself > that something that might turn out to be a really fun and educational > adventure is building a spectrum analyzer. > > There's not of google links out there to half finished or ancient > projects. > > I'm not looking at creating laboratory grade equipment, just something > that'll help me see that the circuits I'm building are actually doing. > > So, any suggestions? > > I'm not to concerned about the interface or display, that's the kind of > stuff I've done before so I'd probably just take the easy way out and > use a PC initially. > > My main area of concern is the actual RF stuff. > > I'd like the analyzer to at least cover up to about 1GHz (the 2.4GHz > band would be nice (and very useful in the future) but I feel I might be > overreaching there). > > Alot of projects use the tuners in VCRs for the RF front end. Any > recommendations on something that might work well? > > Ideally if I could get a tuner to do most of the dirty work (something > like feed it a voltage to select which frequency to tune, and output an > RSSI signal to indicate signal strength) that would be a great way to > start. > > Any suggestions? Anybody do something similar? > > Thanks for your ideas! > > TTYL > > --=20 > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist >=20 --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .