I have used these aftermarket option 30 boards several times. There are open sourced design files on the web, and several chinese vendors offer both the bare boards and completely built (including requisite cables and standoffs) for a reasonable price. I don¡¯t have a signal source for microwave frequencies but at 1000 MHz the boards I have purchased meet the option 30 specs. Since the layout and components look identical to the OEM option 30 boards, I would hope they performed at least to spec if not just as well.
?
It¡¯s interesting that you found a 53132 on eBay equipped with one! I don¡¯t think it was one that I outfitted, because the ribbon cable is slightly diffferent than the ones I have used.
?
I would be interested to hear what sensitivity readings you obtain above 1000 MHz.
?
Vic
