release v.19.7

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Features:

• ✨✨ new spectrum channel mode normalization function ✨✨
  • flattens spectrum by bringing up all of the RSSI readings to the peak value
  • resolves the 'valley problem' with channels hiding behind other channels of higher noise floor
  • to use it, wait until there are no active TX peaks across the whole spectrum and press FN2
    • to turn it off press FN2 again or use the reset blacklist UP/DOWN buttons (more reliable with UP/DOWN buttons - will be fixed next release)

Changes:

• #82 reverted AM AGC signal range changes done in v.19.6
  • this caused worsening of the reception for the current users and didn't improve the reception of the user this was targeted towards
  • kept the lowest gain table changed in v.19.6 so this is a partial revert, please let me know if this resolves all of the issues - if not I will do a complete revert of AM AGC to version that was present in v.19.5
• reverted last release changes so the spectrum channel mode load channel settings from EEPROM when PTT pressed
  • this makes more sense considering we might have channel specific configuration the spectrum doesn't know about i.e CTCSS code

Fixes:

• fix #81 fm radio 10s scan timeout, EEPROM frequency validation

release v.19.6

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Changes:

• squelch is 20% more sensitive
  • note: squelch also protects the radio form freezing when strong signal is encountered, so if you run into freezes you didn't experience before likely you need to turn up your squelch ⬆️
• RxAGC FAST for AM max signal range has been slightly lowered and its lowest gain table gain has been also lowered to allow radio to adjust to a very strong, nearby AM signals
  • this is based on the video on the Internet from one of the users (likely situated near the airport) showing AM reception overloaded
  • this is an experimental change and I have no way of testing this, so your feedback is welcome (videos would be best)

Fixes

• fix #40 new channel bandwidths can now be properly saved (courtesy of @egzumer 🎉 )
• fix: switching channel bandwidths via action key saves changes made to VFO channel
• fix: spectrum channel mode copy channel bandwidths to channel on PTT

release v.19.5

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Features:

• CTCSS scanner:
  • refresh rate changed from 210ms to 10ms
  • display results on 1st hit instead of 3rd consecutive hit
    • now it detects tail tones perfectly as soon as the first transmission ends
    • note: tail tones below 65Hz are not reliably detected by the CTCSS scanner - likely by the design of the chip and to be fair these are not standard CTCSS tones. they work perfectly when used as SqTone or TxCTCSS/RxCTCSS though
  • during scanning RX LED will turn on when signal level > 5
    • since we don't hear the audio during the scan, this lets us know that there is some channel activity

Fixes:

• turn off RX led when entering spectrum during active RX

release v.19.4

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Fixes:

• ✨✨ spectrum sticky glitch fixed ✨✨
• fixed audio for 12.5k filter
• #71 55hz CTCSS code added in v.19.3 shifted all stored CTCSS codes 1 up causing breaking changes and making it incompatible with CHIRP
  • moved non-standard tones to the end of selection array and changed default value for SqTone to load valid value 55Hz
  • added more non-standard CTCSS codes: 57.5, 60, 62.5, 65 Hz
• RX led in spectrum activates when max brightness is over 7 (user request)

release v.19.3

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Features:

• new SqTone sets the squelch tail tone used for RX/TX when no DCS/CTCSS is used to make radio compatible with more expensive radios
  • default value is 55Hz - compatible with other Quansheng and Baofeng radios
  • the CTCSS scanner can be used to detect the tail tone other radios are using (it might take a while and take multiple transmissions as the tail transmission is very short)
    • once found set the SqTone to found value and enjoy no squelch sound 😄
• when CTCSS is used 180* phase shift tail is enabled for RX/TX to be compatible with more expensive radios
• non-standard 55Hz CTCSS code added

Changes:

• green RX LED turns on in spectrum only when BlMax = 10, to improve user experience in low light conditions
• STE menu item removed - now it is always on

release v.19.2

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Fixes:

• Passwd menu setting was not displayed in center
• Passwd was causing double beep - wrong indication of error
• Passwd after unlock last key pressed was transferred to main app
• welcome screen displayed only after device has been unlocked
• FM radio tune was skipping one channel every time
• potential fix to spectrum 'sticky squelch' issue

release v.19.1

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🔴 WARNING: Please make a backup of your EEPROM before flashing this release. 🔴
It will not damage your calibration data, but it might erase your stored channels and settings.

Features

• new Passwd menu setting:
  • allows to set POWER ON PASSWORD from the menu
  • enter PIN with digits on the keyboard and press MENU to confirm
  • to disable the Passwd setting use KEY_UP or KEY_DOWN and press MENU to confirm
  • after 3 wrong PIN entries the device will perform a factory reset, erasing all the stored channels and settings

Fixes

• ChSave menu option now selects current channel in order to update it
• FM radio was tuned to the wrong frequency after reboot

release v.19

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Features:

• FM radio is back:
  • it has been completely rewritten to be micro size
  • all the tuning procedures are now handled by the FM chip etc.
  • it has been simplified so the only buttons needed to operate are KEY_UP and KEY_DOWN to tune channels
  • frequency range and channel spacing have been restored to default USA/Europe settings which may result in improved reception in these regions
  • known bugs:
    • dual watch is not working while the radio is on, only primary channel interrupts the radio (this was present in previous implementation as well)
    • sometimes radio skips valid frequency, this is due to the fact that now the FM radio chip determines whether the frequency is valid or not, this is not something that can be controlled in fw now

release v.18

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Features:

• added messenger (activated with F+MENU)
  • thanks to great work of @joaquimorg

Changes:

• removed FM radio due to space limitations

Fixes:

• after exiting spectrum the displayed frequency was different than tuned frequency

release v.17.4

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Features:

• ✨✨ Squelch Tail Elimination now works in spectrum ✨✨
  • it is always on regardless of the STE menu setting
  • squelch off delay in spectrum has been changed from 1000ms to 10ms
• ChSave menu finds last empty channel by default

Fixes:

• spectrum modulation toggle sets correct agc preset