DO5SL — 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: JO31

Receiver-side FT8 activity involving DO5SL, decoded by SO8OO in southeastern Poland. 183 FT8 messages attributed to this token as transmitter, on 80m, 10m, across 11 UTC dates in the available aggregate history. Observed between 2026-08-23 and 2026-10-07.

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 183 FT8 messages attributed to DO5SL as the transmitting token by decoded message structure across 11 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (95%), followed by 10 m (5%). Most decodes (93%) fell within the six-hour window 16:00-22:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

183
Messages attributed
11
UTC dates decoded
53
Active 15-min windows
-11 dB
Estimated median S/N

Bands

80m · 174 10m · 9
First attributed message: 2026-08-23
Last attributed message: 2026-10-07 17:02 UTC

Observed FT8 message patterns

Attributed sample
183 messages
Active dates
11 UTC dates
Estimated median S/N
-11 dB
Estimated 10th-90th percentile
-20 to -3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 51, moderate (-15 to -9 dB) 66, strong (≥ -8 dB) 66.

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 DO5SL 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 DO5SL

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
JO31 · 75 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,054 km (approx.)
Last such locator decoded
2026-10-07 17:00 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 UTCBandDO5SL S/NCounterpartCounterpart S/NMsgsCapture
10-08 16:17 80m - / -20 DL2USR -6 / - 2 ✓ Closing fragment
10-07 17:01 80m -17 / -12 ES2AJ +8 / - 4 ✓ Full exchange observed
10-07 16:31 80m - / +1 OZ5AGJ -6 / - 3 ✓ Closing fragment
09-27 19:18 80m -8 / -12 F1PBZ -15 / -24 2 Partial capture
09-27 19:18 80m -14 / -1 PC2J -9 / +2 5 ✓ Full exchange observed
09-27 19:16 80m - / - DA6WA -12 / - 4 Partial capture
09-27 19:07 80m -1 / - PE1JLZ - / +4 2 ✓ Closing fragment
09-27 18:36 80m -9 / -7 DK5IR -7 / +3 7 ✓ Full exchange observed
09-25 21:28 80m - / -1 DO4TYW -12 / - 2 ✓ Closing fragment
09-25 21:28 80m -9 / -13 HB9EXN -3 / - 2 Partial capture
09-25 21:20 80m -8 / - DO2PY - / -2 2 ✓ Closing fragment
09-25 21:15 80m -8 / -14 EU1EU -8 / -17 2 Partial capture
09-25 21:06 80m -4 / - F5PBG - / -17 2 Partial capture
09-25 21:02 80m -5 / -18 EW2ZC +8 / -12 5 ✓ Full exchange observed
09-25 21:02 80m -6 / -22 YO4NF +10 / -11 7 ✓ Full exchange observed
09-25 20:58 80m - / -18 YO4NF 0 / - 2 Partial capture
09-25 20:57 80m -8 / -5 DO2RG -7 / 0 4 ✓ Full exchange observed
09-25 20:54 80m -4 / - DL7ACN - / -3 2 ✓ Closing fragment
09-25 20:54 80m -1 / -21 YO4NF +2 / -9 3 Partial capture
09-25 20:52 80m -7 / -8 DO1TOM -6 / +3 5 ✓ Full exchange observed
09-25 20:43 80m -14 / - R5AV +3 / -6 3 ✓ Closing observed
09-25 20:42 80m -10 / -2 OK1DBE +6 / +5 4 ✓ Full exchange observed
09-25 20:42 80m - / -14 F1PBZ 0 / - 4 Partial capture
09-25 20:09 80m -12 / - TF1A - / - 2 Partial capture
09-25 19:27 80m -10 / -14 RA4Y -4 / -8 6 ✓ Full exchange observed
09-25 17:07 80m - / -4 OK1SI +6 / - 2 ✓ Closing fragment
09-25 17:03 80m - / -2 LY2TS -1 / - 2 ✓ Closing fragment
09-24 18:04 80m 0 / - 9A4ZM +11 / -1 3 ✓ Closing observed
09-24 18:03 80m -14 / - US2YW +10 / -1 4 ✓ Closing observed
09-24 18:02 80m -12 / +2 DK7TX +6 / +9 3 ✓ Full exchange observed
09-24 17:58 80m - / - 9A4ZM +15 / - 2 Partial capture
09-24 17:44 80m -4 / -4 DO4FOX -12 / -15 4 ✓ Full exchange observed
09-24 17:42 80m 0 / - HA1RJ - / - 2 Partial capture
09-24 17:37 80m - / -3 F1PBZ +12 / - 3 Partial capture
09-24 17:37 80m -6 / - IQ4JO +8 / -8 2 Partial capture
09-24 17:37 80m -8 / -14 UA4FKT +5 / - 5 ✓ Closing observed
09-24 17:17 80m -15 / - UI4I - / - 2 Partial capture
09-24 17:11 80m -4 / -15 OE1FEA -8 / - 5 ✓ Closing observed
09-24 17:09 80m -4 / - PE50SCOUT - / -8 2 Partial capture
09-24 16:56 80m -8 / -19 EV1R +10 / 0 3 ✓ Full exchange observed
09-24 16:52 80m -18 / +4 DL1JEL 0 / 0 5 ✓ Full exchange observed
09-24 16:30 80m -14 / +4 DO5DMF 0 / - 4 ✓ Full exchange observed
09-21 18:33 80m -10 / -17 RY7F -10 / - 3 Partial capture
09-21 18:28 80m -6 / -8 PE1PIN -10 / - 3 Partial capture
09-21 16:57 80m -12 / - RU6C - / - 2 Partial capture
09-20 19:31 80m -4 / -8 IV3GHY +14 / -4 6 ✓ Full exchange observed
09-20 19:24 80m -3 / +1 DO6AZ +2 / - 5 ✓ Closing observed
09-20 19:19 80m -6 / -10 DO1MGN -21 / -11 6 ✓ Full exchange observed
09-20 19:19 80m -7 / -9 DO1MYK -5 / - 3 ✓ Closing observed
09-20 19:06 80m -14 / -4 RW1C +6 / - 4 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
191900 -14 1968  PC2J DO5SL RR73
191915  -5 1968  DO5SL PC2J 73
191930  -8 2203  F1PBZ DO5SL R-24
163100  -6 2239  DO5SL OZ5AGJ R+01 (x3)
165200  -9  408  UA3QNA DO5SL JO31
170000 -14  589  CQ DO5SL JO31 (x2)
170115  +6 1089  DO5SL ES2AJ -12
170200 -17 1090  ES2AJ DO5SL R+16
170215  +9 1089  DO5SL ES2AJ RR73
170230 -17 1089  ES2AJ DO5SL 73
161715  -5 2001  DO5SL DL2USR -20 (x2)
10m 
UTC    dB Audio  Message
071730 -17 1322  DO5SL IK2TLA RR73
071745 -18 1321  IK2TLA DO5SL 73
074715 -10 2283  HB9ACA DO5SL JO31
074730 -13 2283  DO5SL HB9ACA +00
074745 -17 2283  HB9ACA DO5SL R-04
074800 -13 2283  DO5SL HB9ACA RR73
075100  -8  295  Z34K DO5SL JO31
075345 -18 1508  HB0WR DO5SL JO31 (x4)
081145 -22 1729  E75C DO5SL JO31

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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