Ian:
The receiver circuit that I have been looking at will allow general coverage receive and the bandwidth of the channel should reach 100 kHz. The original circuit is run by a vfo and uses direct conversion at the antenna. The vfo is phase shifted by a two winding toroid core transformer. And the mixers are IC types with mini transformers and diodes on the chip. Except for a frequency synthesizer you have a vfo in this case and there definately is the ablity to tune from vlf to 30 MHz. Band coil changes have to be made and the phase splitting transformer might require a change to another version of itself for portions of the HF band but may not neccessarily need changed depending upon the core used. Below is a link where the circuit file can be downloaded if it is still available. http://www.nitehawk.com/rasmit/quad_mixers.zip Dan _____________________________________________________________________ Call Anyone, Anytime, Anywhere in the World - FREE! Free Internet calling from NetZero Voice Visit http://www.netzerovoice.com today! Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/soft_radio/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
