DG9SEH — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JN48

Receiver-side FT8 activity involving DG9SEH, decoded by SO8OO in southeastern Poland. 1,930 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 13 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-27.

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 1,930 FT8 messages attributed to DG9SEH as the transmitting token by decoded message structure across 13 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (50%), followed by 40 m (48%) and 10 m (1%). Most decodes (66%) fell within the six-hour window 14:00-20:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

1,930
Messages attributed
13
UTC dates decoded
175
Active 15-min windows
-10 dB
Estimated median S/N

Bands

80m · 6 40m · 934 20m · 964 10m · 26
First attributed message: 2026-06-06
Last attributed message: 2026-09-27 16:32 UTC

Observed FT8 message patterns

Attributed sample
1,930 messages
Active dates
13 UTC dates
Estimated median S/N
-10 dB
Estimated 10th-90th percentile
-20 to +1.8 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 528, moderate (-15 to -9 dB) 588, strong (≥ -8 dB) 814.

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 DG9SEH 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 DG9SEH

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
JN48 · 1,478 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
941 km (approx.)
Last such locator decoded
2026-09-27 16:32 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 UTCBandDG9SEH S/NCounterpartCounterpart S/NMsgsCapture
09-27 16:31 40m -8 / - M7TUP -20 / +2 3 ✓ Closing observed
09-27 16:29 40m -11 / -14 RD7O +1 / -5 7 ✓ Full exchange observed
09-27 16:26 40m -9 / - US5AT - / - 5 Partial capture
09-27 16:21 40m - / -5 SP2ZST -14 / - 2 ✓ Closing fragment
09-27 16:20 40m -10 / - IW2GXC - / -3 2 Partial capture
09-27 16:16 40m -14 / - SM2ODB - / - 3 Partial capture
09-27 16:13 40m -15 / - G3JPJ - / -1 5 Partial capture
09-27 16:11 40m -12 / -16 F4HSB -15 / -1 5 ✓ Full exchange observed
09-27 16:09 40m -5 / -11 S57MK -8 / -11 5 ✓ Full exchange observed
09-27 16:06 40m -6 / -16 RA3PS -10 / -11 8 ✓ Full exchange observed
09-27 15:57 40m -12 / - G7KMZ - / - 5 Partial capture
09-27 15:55 40m -18 / - UA0ACZ - / - 3 Partial capture
09-27 15:52 40m -14 / - RN3TT - / -11 4 ✓ Closing fragment
09-27 15:50 40m -15 / - R6OU - / - 3 Partial capture
09-27 15:43 40m -15 / - RT3S - / -16 9 ✓ Closing fragment
09-27 15:42 40m -14 / - OZ1LNR - / -10 2 ✓ Closing fragment
09-27 15:38 40m -14 / - RO6OP - / - 5 Partial capture
09-27 15:35 40m -18 / - UA3GU - / - 5 Partial capture
09-27 15:32 40m -16 / - SQ8ESR - / - 3 Partial capture
09-27 15:29 40m -19 / - R6OU - / - 3 Partial capture
09-27 15:25 40m - / -1 G1UZL -19 / - 2 ✓ Closing fragment
09-27 15:19 40m - / 0 DJ2CR -12 / - 2 ✓ Closing fragment
09-27 15:15 40m -18 / - IK3/UY7LA - / -14 3 Partial capture
09-27 15:12 40m -9 / - G4GMO - / - 6 Partial capture
09-27 15:00 40m - / - HA1RJ +7 / - 7 Partial capture
09-27 14:56 40m - / -15 EW8DU -4 / - 3 ✓ Closing fragment
09-27 14:53 40m -10 / -17 RX3DQX -2 / -3 7 ✓ Full exchange observed
09-27 14:51 40m -3 / - IU8BDY - / -18 4 ✓ Closing fragment
09-27 14:48 40m -11 / - RO6OP - / - 4 Partial capture
09-27 14:47 40m -8 / - F1PBZ - / -8 2 ✓ Closing fragment
09-27 14:45 40m -19 / - UF4S/P - / - 2 Partial capture
09-27 14:42 40m -19 / - OE9RRI - / - 4 Partial capture
09-27 14:39 40m -16 / - M9PMB - / -20 4 ✓ Closing fragment
09-27 14:36 40m -17 / - G2YL - / - 5 Partial capture
09-27 14:33 40m -17 / - RT3S - / - 5 Partial capture
09-27 14:32 40m -19 / - RN3ZBX - / - 2 Partial capture
09-27 14:27 40m -18 / - MM7WQD - / - 3 Partial capture
09-27 14:15 40m -20 / - UF4S/P - / - 3 Partial capture
09-27 14:09 40m -20 / - M9PAB - / -24 4 Partial capture
09-27 13:40 40m -22 / -13 SP2SGK 0 / - 3 Partial capture
09-27 13:35 40m -22 / - G3XKT - / - 2 Partial capture
09-27 13:32 40m -20 / - PA5MR - / - 2 Partial capture
09-27 13:30 40m -23 / - RG3M - / - 3 Partial capture
09-27 13:23 40m -22 / - OK1FAQ/P +2 / - 3 Partial capture
09-27 13:20 40m -21 / - F4CKR - / -18 5 ✓ Closing fragment
09-27 13:17 40m -23 / - M0KCM - / -14 3 Partial capture
09-27 12:59 40m - / -4 SQ7KHW -16 / - 5 ✓ Closing fragment
09-27 12:50 40m -23 / - DF8MH/P - / - 2 Partial capture
09-27 12:23 40m -24 / - UF4S/P - / - 2 Partial capture
09-27 12:18 40m -22 / - 9A2LM - / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
162630 -14 1291  US5AT DG9SEH JN48 (x4)
162900 -11 1292  RD7O DG9SEH JN48 (x3)
163015  +1 2814  DG9SEH RD7O -14
163030 -21 1292  RD7O DG9SEH R-05
163045  +1 2815  DG9SEH RD7O RR73
163100  -9 1291  RD7O DG9SEH 73
163115 -20 2011  DG9SEH M7TUP IO90
163130  -8 1292  M7TUP DG9SEH +02 (x2)
163230 -11 1291  IK3/UY7LA DG9SEH JN48
80m 
UTC    dB Audio  Message
213300  +1 2134  9A5E DG9SEH JN48
213315  +3 2134  DG9SEH 9A5E +00
213330  +8 2134  9A5E DG9SEH R+21
213345  +4 2134  DG9SEH 9A5E RR73
213400  +7 2135  9A5E DG9SEH 73
213415  -4 1634  DG9SEH RC2Y KO73 (x2)
213530  +0  749  9A9N DG9SEH R+03
213700  +0  749  YO4LUP DG9SEH RR73
213715 -15 1047  DG9SEH YO4LUP 73
221915 +16 2949  9J2FI DG9SEH JN48
065915  -4 1969  DG9SEH DF0PDF -19 (x2)
073330 -16 1803  DG9SEH DA6NEL -11 (x2)
20m 
UTC    dB Audio  Message
184415  -8 1092  TK/F6FDY DG9SEH JN48
185915  -6 1512  <EA1SS/QRP5W> DG9SEH JN48
195615 -16 1513  LZ2CC DG9SEH JN48
195815 -17 1513  7Z1AV DG9SEH JN48 (x2)
200215 -18 1512  VE1WT DG9SEH JN48 (x3)
200615 -24 1513  N4RTL DG9SEH JN48 (x2)
200715 -21 1513  PT7BI DG9SEH JN48 (x3)
201115 -18 1513  LZ2CC DG9SEH JN48 (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.

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