Hi I’m not quite sure I understand the "2 DIL 80 MHz-oscillators” part.
If you have the power divider, isn’t one oscillator going to do the job? ===== Isolation between the two channels can turn into a bit of a nightmare ….. Bob > On Oct 17, 2020, at 8:59 AM, Gerhard Hoffmann <[email protected]> > wrote: > > > > I'm trying to make a quick frequency extender for a timepod. > > > MCL PSC2-1 power divider, 2* SRA-1 7 dBm ring mixer, 2 DIL 80 MHz-oscillators > > The oscillators can drive the ring mixers with just a coupling capacitor and > 50 Ohm > > load limiting resistor. It is still a square wave at the LO port, but the > diodes in the mixer > > would square it up on their own. > > > When there is no 5V-power, the oscillators are off and the LO inputs are > connected > > to SMA connectors via the normally closed contacts of two reed relays. > > Then the whole thing is passive and needs two external synthesizers. > > > Before I continue with the material I had in the junkbox, a quick question to > those > > of you who have done that already: > > > Are 7 dBm mixers like SRA-1 good enough or is 17 dBm an advantage worth the > > driver amplifiers? The usual signal generators max out at 13 dBm. > > I have 2 17 dBm SRA1-WH, but it would require slaughtering something > unimportant. > > > How close must the oscillators be in frequency? > > > Have a nice weekend, > > Gerhard, DK4XP > > > > > <stereo_downconverter.png>_______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
