My inspiration derives from the following websites: (clickable links)
Based on the success of others (above);
One could construct and connect this HF "up-convertor"
This will then translate the MF/HF spectrum (0.5~30MHz) to within
the tuning range of the "dongle" (64~1700 MHz)
0.5 MHz is the lower limit of the ADE-1 passive/diode mixer. (0.5-500 MHz +7dBm)
Filter inductances are easily measured using my LC meter,
and a good starting point is to use an on-line calculator like that from Harry SM0VPO,
to estimate Nr of turns, coil diameter etc.
The low-pass and high-pass filters are based on standard designs
that I found in my 1975 ARRL handbook (pg 50) "click to enlarge"
For a well written analysis of up-convertors and the "RTL2832 dongle" see: http://f5rct.free.fr/explorer/Documents/Banc.Essai/HFconverterReport.pdf
For a critique of the "RTL2832 dongle" w.r.t. poor RF sensitivity, see: http://www.vklogger.com/forum/viewtopic.php?f=23&t=10527#p24765