Make any changes or corrections to the data fields. When finished, click on the UPDATE button.
Author
Callsign
Email
Security (anti-spam) Question: How many dits in 72?
Dits
Description
Record #
37
RevDate
Sun, 15 Jul 2007 10:30:00 -0500
Details
Due to the limited amount of FT37-43 toroids available, I decided to try a single-balanced mixer instead of a double-balanced mixer. This will save me one toroid for later use. The penalty for this is reduced isolation between the IF and RF ports, but given the constraints already in place for this contest, it seemed like a reasonable trade-off. In practice, the mixer seems to do its job, but I have some concerns about port isolation. There is some unwanted RF getting into the receiver at certain frequencies, although I have not yet been able to track down the source of this interference. -Jason, NT7S 28 Jan 2007
Schematic=
NT7S_Mixer.gif
AuxFile=
NT7S_Mixer.zip
Return to SEARCH
Please use unique filenames that include your callsign. Existing files will be overwritten
The Schematic file must be a GIF or JPG. The Auxfile must be a ZIP
Replace Schematic
Replace AuxFile
Return to SEARCH