Hi Samuel, I was quite a while away from my home, do you have good news?
greetings Arnold Am 08.07.2010 18:12, schrieb Samuel DEMEULEMEESTER: > Here is some update on my low-cost extension board for the Agilent/HP > counters. > > Finally received all the components and assembled everything some days ago. > Here is a picture : http://www.x86.fr/rfpsc/rf_psc_01.jpg. > > Right now, the performance is really good up to 3.5 GHz : > > 50 MHz : -7 dB > 100 MHZ : -15 dB > 250 MHz : -26 dB > 500 MHz : -30 dB > 1 GHZ : -32 dB > 2 GHz : -32 dB > 3 GHz : -30 dB > > Unfortunately, I have an odd issue with upper frequencies. The input of the > prescaler is self-oscillating at about 3.7 GHz, even without any component > on the input stage. The first prototype built doesn't have this issue. My > goal is to reach 5-6 GHz with a good sensibility. Right now, I'm only able > to measure -2 dB at 5 GHz. > > As soon as everything will work fine, I will put online an ordering process > for bare PCB, kit and fully-assembled board. > > > --------------------- > Samuel DEMEULEMEESTER > Presse Non Stop - Canard PC > http://www.canardpc.com > Tel : +33.6.13.73.4003 > MSN : s...@x86.fr > > > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.