Expand the FM range to cover the dongle's entire usable range

[wizardishungry]

see Wikipedia

The FM broadcast band in Japan uses 76 to 95 MHz. The International Radio and Television Organisation (OIRT) band in Eastern Europe is from 65.8 to 74.0 MHz

What is a reasonable range for all RTLSDR devices?

Will this make manual tuning too difficult?

[SevoStille]

It should be trivial to change the constants HZ_FLOOR and HZ_CEIL into (text) configurable variables and calculate the dependent constants on the fly. If I run into spare time, I might sidetrack and add that back to the source. So far, I only tried to to make them (along with the modulation type and bandwidth) dynamically accessible by CV/Knob. Which goes one step further, but might require a change to the buffer architecture, my attempts so far still cause rtl_sdr to crackle and hang up.