Mobilinkd -- Find us @[email protected]

545 posts

Mobilinkd -- Find us @Mobilinkd@mastodon.radio

Mobilinkd -- Find us @[email protected]

@Mobilinkd

Highly mobile packet radio

Chicago Katılım Haziran 2013
54 Takip Edilen1.6K Takipçiler
Mobilinkd -- Find us @Mobilinkd@mastodon.radio
github.com/mobilinkd/Nucl… These changes are now released. As part of the ongoing repo re-org, the NucleoTNC firmware now has its own Github repository. The fine frequency adjustments to the ADC and DAC timers works pretty well.
Mobilinkd -- Find us @[email protected]@Mobilinkd

Should have a firmware update to the NucleoTNC out soon that improves #M17 performance. The oscillator is off by about 100ppm due to the way MSI PLL mode works. Micro-adjustments to the ADC and DAC timers can bring that to within 4ppm. Also, a DC offset bug is fixed. #hamradio

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Mobilinkd -- Find us @Mobilinkd@mastodon.radio
Should have a firmware update to the NucleoTNC out soon that improves #M17 performance. The oscillator is off by about 100ppm due to the way MSI PLL mode works. Micro-adjustments to the ADC and DAC timers can bring that to within 4ppm. Also, a DC offset bug is fixed. #hamradio
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Mobilinkd -- Find us @Mobilinkd@mastodon.radio
If you have a Rev B NucleoTNC board and want to use it for M-17 data, swapping out C1 & C2 for 22uF 16V+ caps is recommended. This is one of the changes on the Rev C board & schematic.
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hackaday
hackaday@hackaday·
@Mobilinkd Nice! What's your application? Ham fun or something more?
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hackaday
hackaday@hackaday·
Happy hackers! What are you working on this fine summer season?
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Mobilinkd -- Find us @Mobilinkd@mastodon.radio
I have misplaced my Nooelec NESDR in the move. I am relegated to using a backup #rtlsdr, one without a TCXO which drifts like crazy. It's got errors in the 55-65ppm range depending on which direction the breeze is blowing. #hamradio
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Sabine Hossenfelder
Sabine Hossenfelder@skdh·
If the Brits want to rejoin the EU, should we let them?
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Mobilinkd -- Find us @Mobilinkd@mastodon.radio
@TakagawaU16 This firmware version adds a "DIG" (digital modulation) mode which bypasses DC filtering, sub-audio HPF, emphasis, 3000Hz LPF, TX audio filters, and disables MIC AGC and AF ALC as specified for "DMR scheme" in application note. It provides a flat response from BK4819 IC.
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