DM3RCK — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO62

Receiver-side FT8 activity involving DM3RCK, decoded by SO8OO in southeastern Poland. 717 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 64 UTC dates in the available aggregate history. Observed between 2026-06-11 and 2026-10-22.

These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.

SO8OO decoded 717 FT8 messages attributed to DM3RCK as the transmitting token by decoded message structure across 64 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (38%), followed by 40 m (32%) and 80 m (17%). Most decodes (62%) fell within the six-hour window 14:00-20:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12.5 dB.

Overview

717
Messages attributed
64
UTC dates decoded
162
Active 15-min windows
-12.5 dB
Estimated median S/N

Bands

160m · 10 80m · 122 60m · 84 40m · 232 20m · 269
First attributed message: 2026-06-11
Last attributed message: 2026-10-22 17:20 UTC

Observed FT8 message patterns

Attributed sample
717 messages
Active dates
64 UTC dates
Estimated median S/N
-12.5 dB
Estimated 10th-90th percentile
-19 to -4 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 202, moderate (-15 to -9 dB) 331, strong (≥ -8 dB) 184.

WSJT-X defines S/N reports against a 2,500 Hz reference noise bandwidth. The ranges above are SO8OO receiver-side display categories, not official WSJT-X classes, transmitter-power measurements or estimates of how easy the station is to hear elsewhere. Statistics include only successful decodes on SO8OO's monitored FT8 channels; transmissions that were not decoded are absent.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with DM3RCK in decoded directed-looking exchanges:

Attributed messages by UTC hour

Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.

Most frequent locator attributed to DM3RCK

The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.

Attributed locator
JO62 · 518 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
675 km (approx.)
Last such locator decoded
2026-10-22 17:20 UTC

A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.

Observed FT8 exchanges

S/N cells show: decoded at SO8OO / report transmitted by the counterpart. An observed exchange is not a QSL or an official logbook confirmation.

Time UTCBandDM3RCK S/NCounterpartCounterpart S/NMsgsCapture
10-18 15:30 60m +2 / - HB9HAN - / -12 2 ✓ Closing fragment
10-17 15:10 80m -14 / - SP5UKR -14 / -16 4 ✓ Closing observed
10-08 18:19 60m -12 / -11 HA/DK1STE +4 / - 2 Partial capture
10-08 18:10 80m -5 / - DK0NZ - / - 2 Partial capture
10-03 16:10 40m - / -15 SP9DPM/P 0 / - 5 Partial capture
10-03 16:09 40m -4 / - SP9DPM - / - 2 Partial capture
10-02 17:51 60m - / -4 DL9KM -13 / - 3 ✓ Closing fragment
10-02 17:49 60m -14 / - IU7RAL - / -9 4 ✓ Closing fragment
10-02 17:46 60m -11 / - SP1RKT -17 / +5 6 ✓ Full exchange observed
10-02 17:44 60m -12 / -10 F5LMJ -16 / -5 5 ✓ Full exchange observed
10-02 17:43 60m -10 / -2 DL0NS -18 / -2 5 ✓ Full exchange observed
10-02 17:42 60m -18 / - IU7RAL - / - 2 Partial capture
10-02 15:47 40m -13 / +2 DL1NRC -5 / -10 5 ✓ Full exchange observed
10-02 15:44 40m -16 / -9 DD3ZZ -6 / -16 5 ✓ Full exchange observed
09-30 07:42 40m -12 / - DD4U - / - 4 Partial capture
09-29 18:30 40m -16 / - TA7MMI - / - 4 Partial capture
09-28 18:06 40m -10 / - TA7MMI -7 / -21 13 ✓ Closing observed
09-25 15:09 40m -12 / - DL1EJD - / - 7 Partial capture
09-25 14:41 40m - / - DC2SF/P -17 / - 2 ✓ Closing fragment
09-19 08:52 40m - / +2 OK2PUM/P -16 / - 2 Partial capture
09-18 19:36 40m -9 / -18 DK3TA -6 / - 4 ✓ Closing observed
09-18 19:30 60m -14 / - GX3RAF/P - / - 2 Partial capture
09-13 18:14 160m -20 / - 4U1GSC - / - 4 Partial capture
09-11 15:51 40m -8 / +5 DL1NB -12 / -3 3 Partial capture
09-11 15:50 40m -2 / - DK4REX - / -13 2 Partial capture
09-11 15:45 40m -4 / - DA0O - / -10 3 ✓ Closing fragment
09-11 15:37 40m -19 / -18 R1QAV -16 / -11 5 Partial capture
09-09 15:59 80m -10 / - R1ZH - / - 3 Partial capture
09-02 14:42 40m -8 / - ON2VHF/P - / -18 4 Partial capture
09-02 14:40 40m -8 / - DL50IPARC +6 / -7 5 Partial capture
09-02 14:38 40m -9 / - ON2VHF/P - / -18 3 Partial capture
09-01 17:51 60m - / +1 DL3DLP +2 / - 2 Partial capture
09-01 17:46 60m -15 / -2 DL6ZAJ -10 / +1 6 ✓ Full exchange observed
09-01 17:45 60m -10 / - DL3DLP - / - 2 Partial capture
09-01 17:40 80m - / -14 DH1VY -16 / - 2 Partial capture
09-01 16:22 40m - / - DC2MA -4 / - 2 ✓ Closing fragment
09-01 16:20 40m - / -13 DL4MD -13 / - 2 ✓ Closing fragment
08-26 19:46 60m -12 / -12 DK5AN -14 / -4 3 ✓ Full exchange observed
08-26 19:42 60m -10 / - HB0/HB9FXF - / - 3 Partial capture
08-26 19:13 80m -9 / - DL9FCY - / - 3 Partial capture
08-26 19:04 60m -11 / -5 OE6HLF -4 / -5 3 ✓ Full exchange observed
08-26 18:43 60m -19 / - DL2DBH - / - 2 Partial capture
08-23 15:51 40m -6 / - <...> - / -18 2 Partial capture
08-23 12:33 40m -13 / - DL2PLE - / -1 3 Partial capture
08-22 18:39 20m - / -22 BG0EJN -10 / - 3 Partial capture
08-22 16:34 20m -3 / - BG7ZHS - / - 6 Partial capture
08-20 19:16 20m -3 / -19 D2IM -5 / -4 7 ✓ Full exchange observed
08-20 19:07 20m -9 / -7 XU7O -9 / -12 9 ✓ Full exchange observed
08-20 19:01 20m -2 / - XU7O - / - 2 Partial capture
08-20 18:59 20m -4 / - D2IM - / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

160m 
UTC    dB Audio  Message
195100  +4  858  DM3RCK HG25CCS -22
195115 -12 1976  <...> DM3RCK R-17
195330  -2 1977  DM3RCK IZ4TOA -08
195345 -13 1976  IZ4TOA DM3RCK R-08
195400  -3 1977  DM3RCK IZ4TOA RR73
195515  -9 1977  HF5A DM3RCK JO62
195530  -6 1977  DM3RCK HF5A -17 (x2)
181430 -22 1787  4U1GSC DM3RCK JO62 (x4)
172030 -24 1862  OH2CLX DM3RCK JO62
60m 
UTC    dB Audio  Message
174830 -15 1448  DM3RCK SP1RKT 73
174915 -14 1820  IU7RAL DM3RCK JO62 (x4)
175130 -16 1598  DM3RCK DL9KM JN68 (x3)
181845 -12 1787  DL3RN DM3RCK JO62
181915 -12 1787  <HA/DK1STE> DM3RCK JO62
181945 -15 1714  <...> DM3RCK JO62
182030  +4 2289  DM3RCK HA/DK1STE -11
153030  +2 2564  HB9HAN DM3RCK R-12 (x2)
171430 -15 1904  DF4BR DM3RCK JO62
80m 
UTC    dB Audio  Message
172730  +5 2576  DM3RCK DB26YLBB +04
173815 -24 2381  DL2EH DM3RCK JO62
174000 -16 2570  DM3RCK DH1VY -14 (x2)
155945 -12 2143  R1ZH DM3RCK JO62 (x3)
181000  -3 2101  DK0NZ DM3RCK JO62 (x2)
150815 -10 1087  DM3RCK PI4S/J -03
150830 -19 1866  F5OYA/P DM3RCK R-01
151030 -11 1866  SP5UKR DM3RCK JO62 (x2)
151115 -14 2158  DM3RCK SP5UKR RR73
151130 -15 1866  SP5UKR DM3RCK 73
40m 
UTC    dB Audio  Message
154530  -6 1927  DM3RCK DD3ZZ -09
154545 -18 2340  DD3ZZ DM3RCK R-16 (x2)
154700  -2 2341  DM3RCK DL1NRC JN39
154715 -14 2340  DL1NRC DM3RCK -10
154730  -6 2341  DM3RCK DL1NRC R+02
154745 -12 2341  DL1NRC DM3RCK RR73
154800  -6 2341  DM3RCK DL1NRC 73
160945  -1 2140  SP9DPM DM3RCK JO62 (x2)
161030  +0  343  DM3RCK SP9DPM/P -15 (x5)
20m 
UTC    dB Audio  Message
191715  -2 2145  D2IM DM3RCK JO62 (x2)
191800  -3 2376  DM3RCK D2IM -19
191815  -1 2145  D2IM DM3RCK R-04
191830  -7 2376  DM3RCK D2IM RR73
191845  -1 2145  D2IM DM3RCK 73
163445  -2 1981  BG7ZHS DM3RCK JO62 (x6)
183945  -7  806  DM3RCK BG0EJN -22 (x3)

Decoder S/N history by band

Count-weighted daily averages across messages attributed to this profiled token and successfully decoded at SO8OO, limited to the rolling 90-day UTC chart window.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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