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2023-11-08 11:27:26 +00:00
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@ -5,28 +5,21 @@ This repository is a cloned and customized version of DualTachyon's open firmwar
https://github.com/DualTachyon/uv-k5-firmware .. a cool achievement !
Use this firmware/code ENTIRELY at your own risk. This firmware is totally experimental, and at
times will go completely tits up (ie, break your radio) - an entirely common occurance when playing
around with experimental code.
times will go completely tits up (break your radio).
There is absolutely no guarantee that it will work in any way shape or form on your radio(s), it may
even brick your radio(s), at which point, maybe find a quiet corner to sob your hert out in.
even brick your radio(s).
NO REFUNDS, ever !
You're on your own.
NO REFUNDS, ever !
## Radio performance
Please note that the Quansheng UV-Kx radios are not professional quality transceivers, their
performance is strictly limited. The RX front end has no track-tuned band pass filtering
at all, and so are wide band/wide open to any and all signals over a large frequency range.
Using the radio in high intensity RF environments will most likely make reception anything but
easy (AM mode will suffer far more than FM ever will), the receiver simply doesn't have a
great dynamic range, which results in distorted AM audio with stronger RX'ed signals.
There is nothing more anyone can do in firmware/software to improve that, once the RX gain
adjustment I do (AM fix) reaches the hardwares limit, your AM RX audio will be all but
non-existant (just like Quansheng's firmware).
On the other hand, FM RX audio will/should be fine.
But, they are nice toys for the price, fun to play with.
# User customization
@ -81,7 +74,8 @@ ENABLE_REVERSE_BAT_SYMBOL := 1 mirror the battery symbol on the sta
ENABLE_FREQ_SEARCH_LNA := 0 keep this disabled
ENABLE_FREQ_SEARCH_TIMEOUT := 0 timeout if FREQ not found when using F+4 search function
ENABLE_CODE_SEARCH_TIMEOUT := 0 timeout if CTCSS/CDCSS not found when using F+* search function
ENABLE_SCAN_IGNORE_LIST := 0 ignore selected frequencies when scanning - add freqs to list with short */scan button when scanning, remove freq from list with long press MENU when not scanning
ENABLE_SCAN_IGNORE_LIST := 1 ignore selected frequencies when scanning - add freqs to list with short */scan button when scanning, remove freq from list with long press MENU when not scanning
ENABLE_SCAN_RANGES := 0 auto select frequency scan range depending on your initial frequency
ENABLE_KILL_REVIVE := 0 include kill and revive code
ENABLE_AM_FIX := 1 dynamically adjust the front end gains when in AM mode to help prevent AM demodulator saturation, ignore the on-screen RSSI level (for now)
ENABLE_AM_FIX_SHOW_DATA := 1 show debug data for the AM fix (still tweaking it)