DO1MER — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO43

Receiver-side FT8 activity involving DO1MER, decoded by SO8OO in southeastern Poland. 419 FT8 messages attributed to this token as transmitter, on 160m, 80m, 10m, across 29 UTC dates in the available aggregate history. Observed between 2026-06-14 and 2026-09-20.

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 419 FT8 messages attributed to DO1MER as the transmitting token by decoded message structure across 29 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (79%), followed by 160 m (18%) and 10 m (3%). Most decodes (88%) fell within the six-hour window 00:00-06:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.

Overview

419
Messages attributed
29
UTC dates decoded
74
Active 15-min windows
-8 dB
Estimated median S/N

Bands

160m · 77 80m · 331 10m · 11
First attributed message: 2026-06-14
Last attributed message: 2026-09-20 03:58 UTC

Observed FT8 message patterns

Attributed sample
419 messages
Active dates
29 UTC dates
Estimated median S/N
-8 dB
Estimated 10th-90th percentile
-21 to +1 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 97, moderate (-15 to -9 dB) 106, strong (≥ -8 dB) 216.

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 DO1MER 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 DO1MER

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
JO43 · 248 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
964 km (approx.)
Last such locator decoded
2026-09-20 03:52 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 UTCBandDO1MER S/NCounterpartCounterpart S/NMsgsCapture
09-20 03:58 80m -5 / - LA3CSA - / - 2 ✓ Closing fragment
09-20 03:55 80m +1 / - F4GYM -24 / - 2 ✓ Closing observed
09-20 03:49 160m -2 / - EB3ENW -9 / -1 4 ✓ Closing observed
09-20 03:49 160m -2 / -13 SV2BWY +1 / 0 6 ✓ Full exchange observed
09-20 03:44 160m 0 / 0 DL3FBI -13 / +3 5 ✓ Full exchange observed
09-20 03:31 80m -4 / - WX7P - / -16 5 ✓ Closing fragment
09-20 03:30 80m -5 / -10 RO3ZR +4 / - 3 ✓ Closing observed
09-20 03:28 80m -11 / -8 F5LMJ -21 / -15 5 ✓ Full exchange observed
09-20 03:11 80m -4 / - 4X1VE - / - 2 Partial capture
09-20 03:07 80m -8 / -9 R4FDD -10 / 0 4 ✓ Full exchange observed
09-20 02:57 160m -7 / - CT2GQA -21 / -11 4 ✓ Closing observed
09-20 02:51 80m -8 / -4 UC6D +6 / +8 4 ✓ Full exchange observed
09-20 02:49 80m -5 / -15 YO8XFU +3 / -6 5 ✓ Full exchange observed
09-20 02:45 80m 0 / -4 EA2DYB -9 / +5 4 ✓ Full exchange observed
09-20 02:45 80m -4 / +10 ON4MAP -17 / +2 7 ✓ Full exchange observed
09-20 02:39 80m - / -5 IK4IDY 0 / - 2 ✓ Closing fragment
09-20 02:35 80m -2 / - DL0RDG +5 / - 5 ✓ Full exchange observed
09-20 02:27 160m -9 / -18 EA5JK +4 / - 5 ✓ Full exchange observed
09-19 17:53 160m -15 / -2 HA7VC/P +6 / -5 5 ✓ Full exchange observed
09-19 17:50 160m -14 / +1 DO9AO -5 / - 5 ✓ Full exchange observed
09-19 17:48 160m -17 / -4 LY2CK -8 / -7 4 ✓ Full exchange observed
09-19 17:00 80m +1 / +1 EU1AFX -12 / +5 3 ✓ Full exchange observed
09-19 16:52 80m -13 / -5 US7KC +16 / - 4 ✓ Closing observed
09-19 16:50 80m - / - RW1AI -6 / - 2 ✓ Closing fragment
09-19 16:46 80m -10 / -4 SP3IPA -2 / - 4 ✓ Full exchange observed
09-19 16:45 80m - / - RW1AI -6 / - 2 Partial capture
09-19 15:50 80m -20 / +9 DB3OI -5 / - 4 ✓ Full exchange observed
09-19 15:50 80m -24 / - EU1AFX +8 / 0 2 Partial capture
09-19 15:48 80m -22 / -1 PF7DKW -2 / - 4 ✓ Closing observed
09-19 04:50 80m - / -8 9A2LM -14 / - 3 ✓ Closing fragment
09-19 04:34 80m -1 / - R2EA/P - / -25 3 Partial capture
09-18 04:56 80m -21 / -2 DL6RS +6 / +5 5 ✓ Full exchange observed
09-18 04:53 80m -12 / - OZ6NC - / -11 3 ✓ Closing fragment
09-18 04:44 80m -7 / - CT2GQA - / +2 2 ✓ Closing fragment
09-18 04:42 80m -12 / +4 ON4MAP -21 / -2 4 ✓ Full exchange observed
09-16 05:19 80m -16 / - DO1OAS -13 / - 4 ✓ Full exchange observed
09-16 04:54 80m -9 / - N1WI - / - 3 Partial capture
09-16 04:50 80m -9 / -7 F4LZZ -5 / -9 4 ✓ Full exchange observed
09-14 04:52 80m -10 / - DO5PY -24 / -4 4 ✓ Closing observed
09-11 04:53 80m -24 / -4 DJ2FR -19 / - 4 ✓ Closing observed
09-11 04:50 80m -23 / -5 SP7SZJ +1 / -3 6 ✓ Full exchange observed
09-11 04:49 80m -24 / - EA4IDN - / - 2 Partial capture
09-10 06:01 80m -19 / - DA6PP - / -9 2 ✓ Closing fragment
09-09 04:57 80m -16 / - DO1TEM - / +10 2 ✓ Closing fragment
09-09 04:56 80m -20 / - F4LNM - / -10 2 ✓ Closing fragment
09-08 06:29 80m - / - DF0AWG -14 / - 5 Partial capture
09-07 05:09 80m - / -1 HF100PKP +7 / - 2 Partial capture
09-07 05:08 80m -13 / - VE2HLS - / -14 3 ✓ Closing fragment
09-07 05:07 80m -13 / - SP5DFK/QRP - / -7 2 Partial capture
09-07 05:04 80m -12 / - DL1HDL - / - 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
033015  -4 1819  CQ DO1MER JO43
033030  +4 2701  DO1MER RO3ZR R-10
033045  -5 1820  RO3ZR DO1MER RR73
033100  +4 2701  DO1MER RO3ZR 73
033115  -2 1820  WX7P DO1MER -16 (x5)
033415  -7 1820  YO4ATW DO1MER -16
033830  -1 2406  NJ3T DO1MER JO43
035530 -24 2437  DO1MER F4GYM RR73
035545  +1 2434  F4GYM DO1MER 73
035815  -8 1547  LA3CSA DO1MER R+12 (x2)
160m 
UTC    dB Audio  Message
034700  -3 1424  CQ DO1MER JO43 (x3)
034900  +4 2285  DO1MER SV2BWY KN10
034900 -12  645  DO1MER EB3ENW JN11
034915  +0 1424  EB3ENW DO1MER -01
034930  +4 2285  DO1MER SV2BWY KN10
034945  -3 1424  EB3ENW DO1MER RR73
035000  -6  645  DO1MER EB3ENW 73
035015  -2 1424  SV2BWY DO1MER +00
035030  -2 1988  DO1MER SV2BWY R-13
035045  -2 1424  SV2BWY DO1MER RR73
035100  -3 1988  DO1MER SV2BWY 73
035215  -1 1424  CQ DO1MER JO43 (x2)
10m 
UTC    dB Audio  Message
074600 -19 1706  DO1MER F5LHI -08 (x2)
123100 -17 1727  DO1MER LZ4VR R+05 (x2)
060445  -2  750  IW0DYI DO1MER JO43 (x3)
060700  -3  750  HA7UL DO1MER JO43 (x2)
060845  +2  751  IU5LQC DO1MER JO43 (x3)
061015  -3  751  DL9KM DO1MER +13 (x2)
061115  +2  751  LZ2CC DO1MER JO43

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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