DO1SHK — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO31

Receiver-side FT8 activity involving DO1SHK, decoded by SO8OO in southeastern Poland. 443 FT8 messages attributed to this token as transmitter, on 80m, 10m, across 9 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-09-06.

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 443 FT8 messages attributed to DO1SHK as the transmitting token by decoded message structure across 9 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (81%), followed by 10 m (19%). Several six-hour UTC windows tied for the largest share (91%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7 dB.

Overview

443
Messages attributed
9
UTC dates decoded
50
Active 15-min windows
-7 dB
Estimated median S/N

Bands

80m · 359 10m · 84
First attributed message: 2026-06-10
Last attributed message: 2026-09-06 20:53 UTC

Observed FT8 message patterns

Attributed sample
443 messages
Active dates
9 UTC dates
Estimated median S/N
-7 dB
Estimated 10th-90th percentile
-19 to +4 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 89, moderate (-15 to -9 dB) 112, strong (≥ -8 dB) 242.

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 DO1SHK 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 DO1SHK

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 · 354 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,054 km (approx.)
Last such locator decoded
2026-09-06 20:53 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 UTCBandDO1SHK S/NCounterpartCounterpart S/NMsgsCapture
09-06 20:42 80m - / -8 DO1OAS -12 / - 2 Partial capture
09-06 20:29 80m - / - DF2JK -16 / - 2 Partial capture
09-06 20:13 80m - / +4 ON5MX -11 / - 2 ✓ Closing fragment
08-30 10:37 10m -22 / - IT9ECY - / -13 2 Partial capture
08-30 10:26 10m -21 / - DN9CHV - / -19 2 Partial capture
08-30 10:24 10m - / +9 SP8MO -22 / - 2 ✓ Closing fragment
08-29 21:11 80m -10 / - UT2PC +17 / - 5 Partial capture
08-29 21:06 80m -14 / - DL5OAH +2 / - 5 ✓ Closing observed
08-29 20:51 80m +2 / - RI1FJL - / - 3 Partial capture
08-29 20:26 80m 0 / - DH2KAB +2 / -14 3 ✓ Full exchange observed
08-29 19:55 80m - / - DL7UKM +2 / - 3 Partial capture
08-29 19:16 80m - / - DO7MEW -3 / - 3 Partial capture
08-29 19:07 80m - / - DB3GW -9 / - 3 Partial capture
08-29 19:05 80m 0 / - ON6LEO +6 / -1 5 ✓ Full exchange observed
08-29 18:53 80m - / - DB3GW -16 / - 3 Partial capture
08-26 18:59 80m - / - DL3YAV -10 / - 3 Partial capture
08-26 18:54 80m - / - ON4MGV -10 / - 2 ✓ Closing fragment
08-12 20:52 80m - / - IN3XUG +6 / - 2 Partial capture
08-12 20:51 80m - / - DH5AAF -8 / - 2 Partial capture
08-12 20:39 80m -16 / - G8LNR - / -11 4 ✓ Closing fragment
08-12 20:33 80m -15 / - EG5MYC - / - 8 Partial capture
08-12 20:25 80m -18 / - RX6DA - / - 3 Partial capture
08-12 20:18 80m -19 / -17 DL2VN 0 / -14 10 ✓ Full exchange observed
08-12 20:16 80m - / -8 DM2RM +13 / - 2 ✓ Closing fragment
08-12 20:09 80m -6 / -6 DL2RN -10 / -18 9 ✓ Full exchange observed
08-12 20:00 80m -17 / - DB4SNK -5 / -11 4 ✓ Closing observed
08-12 19:53 80m -15 / -1 LA9GX +6 / -6 8 ✓ Full exchange observed
08-12 19:48 80m -11 / -20 SP7ROH +7 / - 11 Partial capture
08-12 19:44 80m -18 / +7 ON8MA -13 / - 4 ✓ Closing observed
08-12 19:37 80m -21 / -7 LB3BJ 0 / -5 4 ✓ Full exchange observed
08-12 19:34 80m -17 / +3 PA4PA -4 / +3 5 ✓ Full exchange observed
08-12 19:33 80m -18 / +3 DO9FR -1 / -11 2 Partial capture
08-12 19:27 80m -19 / - EU3AA - / - 7 Partial capture
08-12 19:17 80m -11 / -9 SO1CJ +14 / +5 4 ✓ Full exchange observed
08-12 19:13 80m -8 / - RZ3DW - / - 5 Partial capture
08-12 19:11 80m -16 / - OH1MLZ - / - 2 Partial capture
08-12 18:57 80m - / -9 DO9KB +10 / - 2 ✓ Closing fragment
08-12 18:48 80m - / -4 SP9FZH +6 / - 2 ✓ Closing fragment
08-12 18:31 80m -24 / -13 SP9UOP +6 / -18 3 ✓ Full exchange observed
08-09 20:58 80m -11 / - ON6CQ -24 / -7 3 ✓ Closing observed
08-09 20:58 80m -12 / -13 HF5A +5 / -10 6 ✓ Full exchange observed
08-09 20:56 80m -11 / - DO5PY - / -7 2 ✓ Closing fragment
08-09 20:53 80m -17 / - SP7VCL +17 / -5 4 ✓ Closing observed
08-09 20:48 80m -13 / - 9A9N - / - 5 Partial capture
08-09 20:46 80m -19 / -7 DL0BRV -18 / -11 3 ✓ Full exchange observed
08-09 20:42 80m -19 / - DO3HUM - / -11 3 ✓ Closing fragment
08-09 20:39 80m -9 / -24 R8CW/4 -2 / - 9 Partial capture
08-09 20:36 80m -16 / -13 OE9MOI +2 / -9 4 ✓ Full exchange observed
08-09 20:33 80m -8 / -15 RA1WP -4 / -15 10 ✓ Full exchange observed
08-09 20:31 80m -8 / -5 DA6EE +4 / -2 5 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
211700 +14  968  DO1SHK UT2PC KO21
201300 -13 1257  DO1SHK ON5MX +04 (x2)
201915 -16 1704  CQ DO1SHK JO31
202230 -13 1544  DO1SHK DO9MH 73
202515 -20 1704  CQ DO1SHK JO31                        a1 (x3)
202900 -14 1704  DO1SHK DF2JK JO30 (x2)
203130 -11 1704  DO1SHK DL9DAJ R-16
204200 -13 1703  DO1SHK DO1OAS -08 (x2)
204415 -20 1703  CQ DO1SHK JO31 (x2)
10m 
UTC    dB Audio  Message
114800  -6  293  CQ DO1SHK JO31
102445 -10  656  DO1SHK SV2CLJ KN10
105745 -23 1420  DO1SHK EA5BCO RR73
111115 -11  615  DO1SHK EA4IAQ RR73
102400 -21 1432  DO1SHK SP8MO +09 (x2)
102615 -22 1308  DN9CHV DO1SHK R-19 (x2)
102945 -19 2295  LZ1EV DO1SHK JO31
103245 -24 1656  YL4U DO1SHK JO31
103715 -21 2107  IT9ECY DO1SHK JO31 (x2)
103915 -11  614  <...> DO1SHK JO31
104415 -17 1242  YU0U DO1SHK 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.

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