(when name + freq channel display mode)ĮNABLE_TRIM_TRAILING_ZEROS := 1 trim away any trailing zeros on frequenciesĮNABLE_KEEP_MEM_NAME := 1 maintain channel name when (re)saving memory channelĮNABLE_WIDE_RX := 1 full 18MHz to 1300MHz RX (though front-end/PA not designed for full range)ĮNABLE_TX_WHEN_AM := 0 allow TX (always FM) when RX is set to AMĮNABLE_F_CAL_MENU := 0 enable/disable the radios hidden frequency calibration menuĮNABLE_TX_UNLOCK := 0 allow TX everywhere EXCEPT airband (108~137). ĮNABLE_CLANG := 0 **experimental, builds with clang instead of gcc (LTO will be disabled if you enable this)ĮNABLE_SWD := 0 only needed if using CPU's SWD port (debugging/programming)ĮNABLE_OVERLAY := 0 cpu FLASH stuff, not neededĮNABLE_LTO := 1 **experimental, reduces size of compiled firmware but might break EEPROM reads (OVERLAY will be disabled if you enable this)ĮNABLE_UART := 1 without this you can't configure radio via PCĮNABLE_UART_DEBUG := 0 just for code debugging, it sends debug info along the USB serial connection (programming lead)ĮNABLE_AIRCOPY := 1 clone radio-to-radio via RFĮNABLE_AIRCOPY_REMEMBER_FREQ := 1 remember the aircopy frequencyĮNABLE_AIRCOPY_RX_REBOOT := 0 auto reboot on an aircopy successful RX completionĮNABLE_FMRADIO_64_76 := 0 enable FM radio 64MHz ~ 76MHzĮNABLE_FMRADIO_76_90 := 0 enable FM radio 76MHz ~ 90MHzĮNABLE_FMRADIO_76_108 := 0 enable FM radio 76MHz ~ 108MHzĮNABLE_FMRADIO_875_108 := 1 enable FM radio 87.5MHz ~ 108MHzĮNABLE_FMRADIO_64_108 := 0 enable the FM radios full frequency rangeĮNABLE_NOAA := 0 everything NOAA (only of any use in the USA)ĮNABLE_MUTE_RADIO_FOR_VOICE := 1 mute the radios audio when a voice is playingĮNABLE_VOX := 0 voice operated transmissionĮNABLE_REDUCE_LOW_MID_TX_POWER := 1 reduce the low and mid TX power levels (high remains unchanged)ĮNABLE_1750HZ := 0 side key 1750Hz TX tone (older style repeater access)ĮNABLE_PWRON_PASSWORD := 0 include power-on password codeĮNABLE_RESET_AES_KEY := 1 '1' = reset/clear the AES key stored in the eeprom (only if it's set)ĮNABLE_BIG_FREQ := 0 big font frequencies (like original QS firmware)ĮNABLE_SMALL_BOLD := 1 bold channel name/no. You'll find the options at the top of "Makefile" ('0' = remove code, '1' = include code). Us to remove certain firmware features in order to make room in the flash for others. You can customize the firmware by enabling/disabling various compile options, this allows ![]() ![]() On the other hand, FM RX audio will/should be fine.īut, they are nice toys for the price, fun to play with. Non-existant (just like Quansheng's firmware). There is nothing more anyone can do in firmware/software to improve that, once the RX gainĪdjustment I do (AM fix) reaches the hardwares limit, your AM RX audio will be all but Great dynamic range, which results in distorted AM audio with stronger RX'ed signals. Using the radio in high intensity RF environments will most likely make reception anything butĮasy (AM mode will suffer far more than FM ever will), the receiver simply doesn't have a The RX front end has no track-tuned band pass filteringĪt all, and so are wide band/wide open to any and all signals over a large frequency range. Please note that the Quansheng UV-Kx radios are not professional quality transceivers, their There is absolutely no guarantee that it will work in any way shape or form on your radio(s), it mayĮven brick your radio(s), at which point, maybe find a quiet corner to sob your hert out in. ![]() Times will go completely tits up (ie, break your radio) - an entirely common occurance when playing This firmware is totally experimental, and at Use this firmware/code ENTIRELY at your own risk. ![]() This repository is a cloned and customized version of DualTachyon's open firmware found here. Open reimplementation of the Quan Sheng UV-K5 v2.1.27 firmware
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