ntp.iwik.sk

Stratum 1 (synchonized using DCF-77) NTP server located in Bratislava, Slovakia
210 Number of sources = 12
MS Name/IP address         Stratum Poll Reach LastRx Last sample               
===============================================================================
#* DCFa                          0   4    36    31   -396us[ -415us] +/-  970us
#? GPS                           0   4     0     -     +0ns[   +0ns] +/-    0ns
^? hAPac2                        2   6   377     6  -2732us[-2732us] +/-   24ms
^? ptbtime1.ptb.de               1   6   377    48  -1682us[-1678us] +/-   12ms
^? ntp.telekom.sk                1   6   377   251  -1343us[-1216us] +/- 1083us
^? gemini.ta3.sk                 1   6   377    51  -1807us[-1802us] +/-   12ms
^? ntp.ufe.cz                    1   6   377    53  -1652us[-1634us] +/- 4007us
^? tik.cesnet.cz                 1   6   377     0  -2327us[-2327us] +/- 6083us
^? tak.cesnet.cz                 1   6   377     0  -2509us[-2509us] +/- 5525us
^? ntp.nic.cz                    1   6   377    10  -1463us[-1463us] +/- 5062us
^? ntp.hr                        1   6   377   123  -2664us[-2528us] +/- 8104us
^? ntp.jh1.at                    1   6   377    48  -5063us[-5059us] +/-   12ms
210 Number of sources = 12
Name/IP Address            NP  NR  Span  Frequency  Freq Skew  Offset  Std Dev
==============================================================================
DCFa                       64  40   54m     -0.004      0.365    -75ns  1014us
GPS                         0   0     0     +0.000   2000.000     +0ns  4000ms
hAPac2                     29  19   30m     -0.265      0.016  -2735us    11us
ptbtime1.ptb.de            64  36   67m     +0.008      0.438  -1503us  1158us
ntp.telekom.sk             36  21   65m     -0.214      0.021  -1289us    44us
gemini.ta3.sk              64  35   72m     -0.256      0.149  -2011us   405us
ntp.ufe.cz                 64  30   71m     -0.190      0.179  -1785us   482us
tik.cesnet.cz              64  41   68m     -0.210      0.122  -1106us   328us
tak.cesnet.cz              64  37   67m     -0.225      0.108  -1242us   297us
ntp.nic.cz                 64  30   70m     -0.185      0.116  -1095us   338us
ntp.hr                     13   7   22m     -0.255      0.296  -2498us   115us
ntp.jh1.at                 64  34   76m     -0.229      0.067  -4576us   211us
Reference ID    : 44434661 (DCFa)
Stratum         : 1
Ref time (UTC)  : Thu Oct 28 17:50:52 2021
System time     : 0.000037751 seconds fast of NTP time
Last offset     : -0.000019458 seconds
RMS offset      : 0.000085829 seconds
Frequency       : 7.086 ppm fast
Residual freq   : -0.004 ppm
Skew            : 0.373 ppm
Root delay      : 0.000000001 seconds
Root dispersion : 0.001073532 seconds
Update interval : 16.0 seconds
Leap status     : Normal
https://www.ntppool.org/scores/62.197.224.14
DCF77

DCF77 Receiver

ntp-refclock logs:

Oct 28 19:38:00 ntp ntp-refclock[16932]: parse: convert_rawdcf: start bit / parity check FAILED for "##-#####-######RADMLS124812-P124812P12481212412-8112481248P"
Oct 28 19:39:00 ntp ntp-refclock[16932]: parse: convert_rawdcf: start bit / parity check FAILED for "-###########-##RADMLS1-48124p124812P124812124--4811248-248p"
Oct 28 19:39:16 ntp ntp-refclock[16932]: parse: convert_rawdcf: INCOMPLETE DATA - time code only has 15 bits
Oct 28 19:40:00 ntp ntp-refclock[16932]: parse: convert_rawdcf: INCOMPLETE DATA - time code only has 43 bits
Oct 28 19:41:00 ntp ntp-refclock[16932]: parse: convert_rawdcf: start bit / parity check FAILED for "-#--#-####-##----D-LS12----4p1--812P--48-2--4----11--8-2--p"
Oct 28 19:42:00 ntp ntp-refclock[16932]: parse: convert_rawdcf: start bit / parity check FAILED for "##########-####RAD-LS12--124P12-812P1248121241248112481248P"
Oct 28 19:43:00 ntp ntp-refclock[16932]: PARSE receiver #0: SYNCHRONIZED
Oct 28 19:47:00 ntp ntp-refclock[16932]: parse: convert_rawdcf: start bit / parity check FAILED for "-#-#---##-#-#----D-LS124---4p1--812P---8-2--4----11----2--p"
Oct 28 19:47:00 ntp ntp-refclock[16932]: PARSE receiver #0: conversion status "CONVERSION FAILED; ILLEGAL FORMAT"
Oct 28 19:47:00 ntp ntp-refclock[16932]: PARSE receiver #0: interval for following error message class is at least 00:01:00
Oct 28 19:47:00 ntp ntp-refclock[16932]: PARSE receiver #0: FAILED TIMECODE: "-#-#---##-#-#----D-LS124---4p1--812P---8-2--4----11----2--" (check receiver configuration / wiring)
Oct 28 19:47:24 ntp ntp-refclock[16932]: parse: convert_rawdcf: INCOMPLETE DATA - time code only has 24 bits
Oct 28 19:48:00 ntp ntp-refclock[16932]: parse: convert_rawdcf: INCOMPLETE DATA - time code only has 35 bits
Oct 28 19:49:00 ntp ntp-refclock[16932]: parse: convert_rawdcf: start bit / parity check FAILED for "-##-###--#-------D--S1-48--4P1--81-P---812-24----11----2--p"
Oct 28 19:50:00 ntp ntp-refclock[16932]: PARSE receiver #0: STATE CHANGE: DST; TIME CODE; (LEAP INDICATION; CALLBIT) -> DST; CALL BIT; TIME CODE; (LEAP INDICATION; CALLBIT)
Oct 28 19:50:00 ntp ntp-refclock[16932]: PARSE receiver #0: SYNCHRONIZED
Oct 28 19:51:00 ntp ntp-refclock[16932]: parse: convert_rawdcf: start bit / parity check FAILED for "--####-####-###--D--S1---1-4P12-81-P---8-2--4----11----2--p"
Oct 28 19:51:00 ntp ntp-refclock[16932]: PARSE receiver #0: conversion status "CONVERSION FAILED; ILLEGAL FORMAT"
Oct 28 19:51:00 ntp ntp-refclock[16932]: PARSE receiver #0: interval for following error message class is at least 00:01:00
Oct 28 19:51:00 ntp ntp-refclock[16932]: PARSE receiver #0: FAILED TIMECODE: "--####-####-###--D--S1---1-4P12-81-P---8-2--4----11----2--" (check receiver configuration / wiring)