Feb 26
Introducing "ChronoGPS" - RFC 5905 Compliant Time Sync Tool Optimized
for FT8/FT4/FT2 and Other Synchronized Digital Modes
In digital mode operation such as FT8, FT4, and FT2, the accuracy of your
PC clock directly impacts decode rates - it's absolutely critical.
ChronoGPS goes beyond a simple time correction tool by strictly implementing
RFC 5905 (NTPv4) internally, achieving a level of precision that sets it apart
from existing sync tools.
■ Why does "RFC 5905" matter?
Many lightweight time sync tools use "SNTP (Simple NTP)", which simply
overwrites the PC clock with the time received from a server. However,
internet communication always involves "path jitter" and "round-trip delay",
which can introduce errors ranging from a few milliseconds to several hundred
milliseconds.
ChronoGPS, compliant with RFC 5905, performs the following advanced processing
in the background:
- Statistical Error Elimination:
Measures the round-trip time of communication packets in milliseconds.
Statistical filtering removes network-induced noise to derive true
standard time.
- System Clock Protection:
Maintains consistency with the OS system clock while applying optimal
corrections based on the RFC algorithm.
■ A "Head Start" for Future GNSS Operation
Even if you currently operate primarily in an internet-connected environment,
ChronoGPS truly shines if you ever consider portable or offline operation
for FT8/FT4/FT2.
When you add a commercially available GNSS (GPS/QZSS/etc.) receiver,
ChronoGPS operates with it as a Stratum 1 time source at maximum precision.
- Simply connect and configure your receiver to achieve high-precision
timekeeping equivalent to - or better than - internet sync, even in
mountainous areas or remote islands without network access.
- Multi-GNSS Support:
Not just GPS - fully utilizes multiple satellite constellations including
Japan's "Michibiki (QZSS)", GLONASS, Galileo, and BeiDou for stable
time acquisition.
Start by experiencing its stability with everyday internet sync.
Then, when you pick up a GNSS receiver, this software seamlessly evolves
into a full-featured time sync tool ready for serious FT8/FT4/FT2
field operation.
▼ Project Details & Download (GitHub)
github.com/jp1lrt/ChronoGPS/…
#JTDX
#ChronoGPS
#FT8
#FT4
#HamRadio
#AmateurRadio
#DigiMode
#WSJT
#TimSync
#NTP
#RFC5905
#GNSS
#GPS
#QZSS
#Michibiki
#OpenSource
#WindowsSoftware
#DigitalModes
#WeakSignal
#WSJTX
#HamRadioSoftware
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3 Jan 2022
A @TIMBrasil informa: seu Apple Watch jamais terá #timsync, não importa quantos chamados você abra. Uhahahahaha (risada maquiavélica).
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29 Dec 2021
Ate agora não consegui configurar o TimSync tbm. Nas lojas e no *144, os funcionários demonstram desconhecimento total sobre o serviço, e já não sei mais a quem reportar o problema.
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