DK9PH — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO41

Receiver-side FT8 activity involving DK9PH, decoded by SO8OO in southeastern Poland. 1,249 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, across 8 UTC dates in the available aggregate history. Observed between 2026-09-10 and 2026-10-04.

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 1,249 FT8 messages attributed to DK9PH as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (55%), followed by 60 m (44%) and 160 m (1%). Most decodes (100%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (97%); the estimated median was +6 dB.

Overview

1,249
Messages attributed
8
UTC dates decoded
75
Active 15-min windows
+6 dB
Estimated median S/N

Bands

First attributed message: 2026-09-10
Last attributed message: 2026-10-04 22:40 UTC

Observed FT8 message patterns

Attributed sample
1,249 messages
Active dates
8 UTC dates
Estimated median S/N
+6 dB
Estimated 10th-90th percentile
-3.4 to +14.9 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 8, moderate (-15 to -9 dB) 29, strong (≥ -8 dB) 1,212.

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 DK9PH

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
JO41 · 556 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
916 km (approx.)
Last such locator decoded
2026-10-04 22:40 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 UTCBandDK9PH S/NCounterpartCounterpart S/NMsgsCapture
10-04 22:40 80m +3 / - RN8C/M - / - 2 Partial capture
10-04 22:38 80m -3 / - SP5DFK/QRP - / - 2 Partial capture
10-04 22:36 80m +1 / - G7RHF - / +4 3 ✓ Closing fragment
10-04 22:34 80m +7 / - BD8BTP -22 / -19 5 ✓ Closing observed
10-04 22:30 80m +4 / - K4YT - / -25 6 ✓ Closing fragment
10-04 22:00 80m -2 / - IU8GUK - / - 2 Partial capture
10-04 21:57 80m 0 / +1 DO4DXA +16 / - 7 ✓ Full exchange observed
10-04 21:55 80m +3 / +5 SV3AUW -10 / -6 6 ✓ Full exchange observed
10-04 21:52 80m +5 / +8 EI2KM +16 / +10 8 ✓ Full exchange observed
10-04 21:49 80m +10 / -5 RD4CAF -14 / -5 4 ✓ Full exchange observed
10-04 21:49 80m +4 / -1 HF1Z +6 / +7 6 ✓ Full exchange observed
10-04 21:46 80m +6 / -8 DO4TYW -4 / -12 10 ✓ Full exchange observed
10-04 21:43 80m +10 / -10 M7CWF -13 / +1 7 ✓ Full exchange observed
10-04 21:41 80m +10 / -1 SP6FME +11 / +7 5 ✓ Full exchange observed
10-04 21:40 80m +4 / 0 DL7ACA +10 / +1 4 ✓ Full exchange observed
10-04 21:39 80m +1 / - ER5DX - / - 3 Partial capture
10-04 21:32 80m +4 / - DK8HC -8 / +2 8 Partial capture
10-04 21:32 80m +6 / -2 OK1WCF +10 / - 7 ✓ Full exchange observed
10-04 21:28 80m +8 / - CN8NY - / -25 5 ✓ Closing fragment
10-04 21:24 80m +6 / - MX0SQC - / - 3 Partial capture
10-04 21:20 80m +6 / - EQ4DDZ - / - 3 Partial capture
10-04 21:18 80m +2 / - SX2LGT - / -3 3 ✓ Closing fragment
10-04 21:12 80m +3 / - JA6LCJ - / -20 6 Partial capture
10-04 21:05 80m +5 / - OH6FSO - / -22 3 ✓ Closing fragment
10-04 21:04 80m +4 / - RK3YWS/P - / -2 2 Partial capture
10-04 21:02 80m +2 / 0 G0HSP -20 / -7 4 ✓ Full exchange observed
10-03 22:47 80m +7 / -7 EA8UP -4 / -1 5 ✓ Full exchange observed
10-03 22:43 80m +10 / - IT9BYL - / -3 3 ✓ Closing fragment
10-03 22:42 80m +14 / -7 ON3UI -20 / -25 5 ✓ Full exchange observed
10-03 22:39 80m +17 / -3 M9NTS -8 / +4 7 ✓ Full exchange observed
10-03 22:38 80m +16 / - KX8D - / -16 4 ✓ Closing fragment
10-03 22:35 80m +16 / - WE2A - / - 5 Partial capture
10-03 22:31 80m +12 / +1 OM1AGE -2 / -12 7 ✓ Full exchange observed
10-03 21:57 80m 0 / - TJ1GD - / -25 5 Partial capture
10-03 21:47 80m +5 / - TJ1GD - / - 8 Partial capture
10-03 21:44 80m +14 / - DG0MAN - / +8 2 Partial capture
10-03 21:43 80m +8 / - EC3A - / -11 2 ✓ Closing fragment
10-03 21:42 80m +14 / - DL9KM - / -8 2 ✓ Closing fragment
10-03 21:40 80m +14 / -8 UC6D +12 / -6 4 ✓ Full exchange observed
10-03 21:38 80m +14 / +3 DH4PAP +2 / -3 6 ✓ Full exchange observed
10-03 21:37 80m +12 / -3 DO2DLE +2 / -1 5 ✓ Full exchange observed
10-03 21:35 80m +4 / -5 M0KHR -10 / -7 7 ✓ Full exchange observed
10-03 21:34 80m +12 / -9 RY3F +6 / -9 6 ✓ Full exchange observed
10-03 21:32 80m +11 / +5 PC2J +4 / -4 5 ✓ Full exchange observed
10-03 21:30 80m +4 / -12 RU3T +11 / +3 5 ✓ Full exchange observed
10-03 21:28 80m +12 / - ON4MAP 0 / -6 5 ✓ Full exchange observed
10-03 21:26 80m +10 / -11 OE9RWH +2 / -10 5 ✓ Full exchange observed
10-03 21:25 80m +16 / - OZ5AGJ +6 / +2 5 ✓ Full exchange observed
10-03 21:24 80m +14 / - SV1EKI -10 / -13 3 ✓ Closing observed
10-03 21:19 80m +11 / - DO5HB -7 / -23 7 ✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

80m
UTC    dB Audio  Message
223230  +2 1185  K4YT DK9PH 73 (x2)
223400  +2 1185  BD8BTP DK9PH JO41 (x3)
223515 -22  600  DK9PH BD8BTP RR73
223530  +9  692  BD8BTP DK9PH 73
223645  +4 1188  G7RHF DK9PH JO41 (x3)
223815  -4 1188  SP5DFK/QRP DK9PH JO41 (x2)
223915  -1 2063  OZ/DO1BOC DK9PH JO41
224015  +1 1905  RN8C/M DK9PH JO41 (x2)
10m
UTC    dB Audio  Message
101500 -18 2245  DK9PH <...> -05
092445  -1 2419  DK9PH RM8L MO27 (x3)
103415 -17 1065  DK9PH CU2AP -17 (x2)
60m
UTC    dB Audio  Message
210145  +2 1458  OT4R DK9PH JO41
210215  +7 1458  SP9MOC DK9PH -15 (x2)
210330  +3 1458  EA1MX DK9PH JO41
210345  -6 2552  DK9PH EA1MX -07
210400  +8 1458  EA1MX DK9PH R+07
210415  -7 2552  DK9PH EA1MX RR73
210430  +2 1458  EA1MX DK9PH 73
210515  -3 1458  SP5XTF DK9PH JO41 (x5)
210745  +8 1458  F1UGD DK9PH JO41 (x2)
160m
UTC    dB Audio  Message
212700 -10 1194  G6PZ DK9PH R+09
212715  +0 1395  DK9PH G6PZ RR73
212730 -14 1194  G6PZ DK9PH 73
212800 -13 1194  LX1JX DK9PH JO41 (x2)
213015  +3 2748  DK9PH LX1JX -01 (x2)
213100  -4 2748  LX1JX DK9PH 73
213315 -16  923  SP9GCZ DK9PH JO41
213530  -7 1436  DK9PH DK6WS +02
213545 -16 1437  DK6WS DK9PH R+05
213600 -10 1436  DK9PH DK6WS +02
213615 -18 1437  DK6WS DK9PH R+04
213630 -13 1436  DK9PH DK6WS RR73
213645 -21 1437  DK6WS DK9PH 73

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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