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Author Topic: Silicon chip SDR upconverters.  (Read 1303 times)
ZL1BDA
Member

Posts: 30




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« on: July 26, 2014, 05:52:05 AM »

Has anyone had experiences with the 3 different designs of up converter in this Australian magazine?
Because of previous bad experiences with the NE602 mixer I developed my own.
My design in the June 2014 issue has an error in the schematic.
The output toroid transformer centre tap must be grounded.
I can seriously recommend the SD8901 as a mixer and have now used it in 3 circuits with far less problems than with conventional
diode ring mixers. Especially in the oscillator signal leakage area.
ZL1BDA
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WD5GWY
Member

Posts: 391




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« Reply #1 on: July 26, 2014, 12:32:19 PM »

What magazine would that be?Huh
 Huh

james
WD5GWY
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ZL1BDA
Member

Posts: 30




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« Reply #2 on: Yesterday at 04:34:13 PM »

"Silicon Chip" is well known Australian electronics magazine. It was an offshoot of the old "Electronics Australia".
ZL1BDA
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