> PS. Anyone got the manuals for the frequency-converter XSRM-Z and > the phase- > comparator XSRM-Z3? I would enjoy having them. Have the XSRM > RB-standard and > XSRM-Z PSU manuals with schematics. Try www.telford-electronics.com for R&S manuals. (Even if it's not listed on their website, email them... they may be able to get it.) -- john, KE5FX