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And young enough he had the chance to learn software
as a mother tongue.
On 20220206 10:27:31, Siegfried
infected with ham radio with an age of just 48 hours ... that
explains it .. grin
Am 06.02.2022 um 19:26 schrieb Simon
I heard Sputnik. I was two days old in a maternity
hospital, it was being played on the BBC Home service.
(And for the record, I did hear Sputnik
on the school's radio club radio.)
On 20220206 10:19:42, jdow wrote:
Please - it's ALL Simon, really. He is
the guilty party in this endeavor. I'm just an over
educated gadfly on the sidelines. And, indeed, SDRC is so
fantastic it's hard to believe looking at it from a "first
licensed in 1959" vantage point.
On 20220206 01:50:00, h. garcia
Simon, JDow -- very good morning to you and everyone in
I've been reading the exchanges in this thread and I
found it fascinating! Thank you so much!
To be honest, I've haven't checked if we have more
recent topics on the WFM MPX demodulador and the RDS
Anyways, just wanted to share how impressed I'm with the
RDS decoder available in small radios like Sangean
DT-800 or XHData D-808 leveraged by Skyworks (former
SiLabs) ICs Si47xx.
Like you described before, if one checks the MPX
spectrum, very often the RDS carrier is obliterated by
the audio peaks. BER indicator (RDS Spy shows it)
improves a lot during soft music ou pauses/silences.
Nevertheless, the Si47xx seems to cope way better these
scenarios. I've got a station where the DT-800 shows the
station name in no more than 10-15s. Over the PC,
sometimes it takes 2 min to show up.
I've been checking the Si47xx documentation and they
includes some very clever DSP techniques to condition
the RF signal and MPX output. For instance, the IC is
aware of selective fading and tries to handle that.
Unsure how this helps the group, hi! Just wanted to
share Si47xx seems a really nice piece of FM and RDS and
its documentation, despite not revealing how it's done,
shows all real life constraints the IC designers had to
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