The spec for the RF chip includes 4Mok1pt wrote: ↑Wed Aug 02, 2023 6:29 amHi!
I would like to ask the users of this radio: Is there a firmware which is capable of FM TX/RX on the "4M" (73-84MHz) band ? In my country (Czech Republic) this band is used commercially but there are some "shared channels", which don't need any licensing or registering to use them. Similar channels are allocated on "standard" bands like 160 or 450 MHz, but they are much more used because there is a lot of available radios. If it is possible to transmit, what's the achievable power and spectral purity ? Can it be used ? These shared channels are limited to 1W ERP so I don't need more, but I'm afraid of spurious emissions...
With regards / 73,
Pavel OK1PT
https://github.com/amnemonic/Quansheng_ ... n/hardware
https://github.com/amnemonic/Quansheng_ ... t_V1.0.pdf
But this is only the RF chip.18 MHz ~ 660 MHz,
840 MHz ~1300 MHz
You woud need to change the inductors and capacitors to make it work well on that frequency