R5DK — 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: European Russia Most frequent locator attributed to this token: KO96

Receiver-side FT8 activity involving R5DK, decoded by SO8OO in southeastern Poland. 1,139 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 46 UTC dates in the available aggregate history. Observed between 2026-07-18 and 2026-11-05.

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 1,139 FT8 messages attributed to R5DK as the transmitting token by decoded message structure across 46 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (62%), followed by 40 m (36%) and 20 m (3%). Most decodes (64%) fell within the six-hour window 19:00-01:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (78%); the estimated median was +1 dB.

Overview

1,139
Messages attributed
46
UTC dates decoded
221
Active 15-min windows
+1 dB
Estimated median S/N

Bands

First attributed message: 2026-07-18
Last attributed message: 2026-11-05 23:12 UTC

Observed FT8 message patterns

Attributed sample
1,139 messages
Active dates
46 UTC dates
Estimated median S/N
+1 dB
Estimated 10th-90th percentile
-13.9 to +11.4 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 78, moderate (-15 to -9 dB) 176, strong (≥ -8 dB) 885.

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.

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 R5DK

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
KO96 · 87 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,353 km (approx.)
Last such locator decoded
2026-10-28 19:57 UTC

Other locator fields attributed to this token: KO85 (27).

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 UTCBandR5DK S/NCounterpartCounterpart S/NMsgsCapture
11-05 23:09 80m +1 / - K5VRX - / -12 3 Partial capture
11-04 21:59 80m +13 / - BH3FZG - / -18 3 Partial capture
11-04 21:54 80m +2 / +2 OE5TXF +18 / - 4 ✓ Full exchange observed
11-04 21:29 80m -1 / - HS0ZOY - / -19 3 Partial capture
11-04 21:25 80m 0 / -3 MD0CCE +4 / -3 5 ✓ Full exchange observed
11-04 21:21 80m +12 / - LZ1ZF -2 / -2 5 ✓ Closing observed
11-04 21:17 80m +6 / - EA8UP - / -8 5 Partial capture
11-04 21:15 80m +10 / -13 IK6GPZ +9 / +4 6 ✓ Full exchange observed
11-04 21:14 80m +10 / - MW0GBW - / -25 2 Partial capture
11-04 21:11 80m +4 / - JH2FXK - / -9 2 ✓ Closing fragment
11-04 21:11 80m - / -2 RA3TVW -8 / - 5 Partial capture
11-04 21:09 80m +2 / - JE2LPC - / -18 2 Partial capture
11-04 21:07 80m 0 / - OE1PMD - / 0 2 Partial capture
11-04 21:03 80m +3 / - OE1PMD - / 0 3 Partial capture
11-04 20:59 80m +1 / - D2UY - / -7 5 ✓ Closing fragment
11-04 20:57 80m +6 / - JH2FXK - / -9 2 Partial capture
11-04 20:53 80m +9 / -2 EW8DU +1 / - 3 Partial capture
11-04 20:52 80m - / - LZ911TD -9 / - 2 ✓ Closing fragment
11-04 20:52 80m +5 / -5 SP1RKT +4 / -9 6 ✓ Full exchange observed
11-04 20:51 80m +10 / - ON3MOH/P - / -3 2 Partial capture
11-04 20:11 80m -7 / -6 R7ZY -3 / - 4 ✓ Closing observed
11-04 20:09 80m +9 / - JA3FYC - / -15 3 Partial capture
11-04 19:41 80m +6 / - SV5BYP - / -11 4 ✓ Closing fragment
11-04 06:21 80m -7 / - LY1G - / -1 2 Partial capture
11-04 05:39 80m - / 0 LY5A +4 / - 2 ✓ Closing fragment
11-04 00:46 80m +4 / 0 T77RN -13 / -13 11 Partial capture
11-04 00:33 80m 0 / - K1ZZ - / -20 7 Partial capture
11-04 00:25 80m +12 / -15 UA9CK -11 / - 5 ✓ Closing observed
11-04 00:24 80m +6 / -11 CT7BRV -16 / -11 4 ✓ Full exchange observed
11-04 00:14 40m - / -19 PT7YB -14 / - 2 ✓ Closing fragment
11-04 00:11 40m -18 / -3 CU7MD -16 / -18 2 Partial capture
11-04 00:08 40m - / -4 DL1BBO -9 / - 4 ✓ Closing fragment
11-04 00:06 40m - / +7 3A2LF -14 / - 2 ✓ Closing fragment
11-03 23:20 80m +2 / - EA8UP - / -9 3 Partial capture
11-03 23:16 80m +1 / - CT3HQ - / -12 3 Partial capture
11-03 23:13 80m +7 / - CT1APN - / -16 4 Partial capture
11-01 21:20 80m -8 / -11 4O7CC -2 / -13 5 ✓ Full exchange observed
11-01 21:19 80m -6 / - EY7BP - / - 2 Partial capture
11-01 19:56 80m +2 / -15 4O7CC -12 / -13 8 Partial capture
11-01 19:54 80m -1 / - YT2U - / -5 2 Partial capture
11-01 19:52 80m -1 / - 5B4AMM - / - 3 Partial capture
11-01 19:46 80m +4 / - RA9SBN - / -8 2 ✓ Closing fragment
11-01 19:40 80m -4 / - Z62NS - / +1 2 Partial capture
11-01 19:36 80m - / - RM5F +1 / - 3 Partial capture
11-01 19:34 80m +2 / -13 JF2XGF -19 / -16 12 ✓ Full exchange observed
11-01 19:32 80m -10 / - Z62NS - / +1 3 Partial capture
11-01 19:30 80m -10 / - C31CT - / -18 3 Partial capture
11-01 19:28 80m +1 / - 5B4AMX - / -7 2 ✓ Closing fragment
11-01 04:42 80m 0 / -13 ZZ5UNO +3 / -11 11 Partial capture
11-01 04:35 80m - / - RR73; +3 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m
UTC    dB Audio  Message
212915  +0 1824  HS0ZOY R5DK -19 (x3)
215415  +3 1824  OE5TXF R5DK +13
215430 +18  880  R5DK OE5TXF R+02
215445  +2 1824  OE5TXF R5DK RRR
215500 +18  879  R5DK OE5TXF 73
215630  +4 1825  BI6AN R5DK -16
215915 +14  559  BH3FZG R5DK -18 (x3)
222645  -8 2149  EX7DY R5DK RRR
230945  +3 1440  K5VRX R5DK -12 (x3)
40m
UTC    dB Audio  Message
041415  -7  834  PV8AJ R5DK R-09
041430 -12 1447  R5DK PV8AJ RR73
041445 -10  834  PV8AJ R5DK 73
041545  -8  834  R8LCA R5DK -11
041630  -4 2468  R5DK RW6AVK KN95
000600 -10 1718  R5DK 3A2LF R+07 (x2)
000845  -9  498  R5DK DL1BBO JO43 (x4)
001115 -18 1144  CU7MD R5DK -18
001230 -16 1550  R5DK CU7MD R-03
001430 -14 1503  R5DK PT7YB R-19 (x2)
10m
UTC    dB Audio  Message
120330  -8 1902  R5DK 9K2WA R-18
120400 -15 1902  R5DK RR73; HG5OGI <...> +04
120515 +11  764  R5DK CR7BRV -06 (x2)
20m
UTC    dB Audio  Message
203145  +2  425  R5DK MI7RDK -04 (x3)
204245  -7  444  R5DK VE3ARF -11 (x2)
205400 -15 2226  R5DK CN8NS R-25 (x3)
050615  -6 2789  R5DK R6FX LN14
205745  -9 2152  R5DK CX6TU -13
155045  -1 2820  R5DK M1WLK IO82 (x3)
203345  +6 1125  R5DK CS8ABF R-11 (x2)

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

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee