Hi Tom,
I have a question with regard to EMI and T2/F75. I have read about your tempest box experiment and that you were able to run the F75 at max without any falsing. Now I know that First Texas sprays the inside of the control box with a coating of graphite to shield against EMI, but graphite is not the best EMI shield. I was thinking of designing and making my own EMI shield that could be placed over the control box without voiding the warranty, like a control box cover but with 1mm lead in it. I can also get EMI resistant glass that I could cover the LCD screen with.
Now for my question; is the control box the only place where EMI is having a negative effect on the detector? For some reason I feel like the coil is the main antenna for EMI and obviously I cant shield it. Well, I guess I could if I covered it with a magic coating of something that only allowed the detector frequency to go through.
So do you think I would be able to gain some increase in performance if I was able to block 90% of EMI hitting just the control box? Would 1mm lead shielding be able to block this much EMI? I am really hopeful for this to work, but as a realist I think that if this simple solution would solve the EMI problem, Dave Jonson would have done it ages ago buy covering the inside of the control box with a thin layer of lead and not graphite.
Eagerly awaiting your response,
Thanks,
Yev