DJ7M — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JN49

Receiver-side FT8 activity involving DJ7M, decoded by SO8OO in southeastern Poland. 5,493 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, across 53 UTC dates in the available aggregate history. Observed between 2026-06-06 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 5,493 FT8 messages attributed to DJ7M as the transmitting token by decoded message structure across 53 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (83%), followed by 40 m (11%) and 160 m (6%). Most decodes (93%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (98%); the estimated median was +16 dB.

Overview

5,493
Messages attributed
53
UTC dates decoded
448
Active 15-min windows
+16 dB
Estimated median S/N

Bands

160m · 350 80m · 4,540 40m · 603
First attributed message: 2026-06-06
Last attributed message: 2026-10-07 06:58 UTC

Observed FT8 message patterns

Attributed sample
5,493 messages
Active dates
53 UTC dates
Estimated median S/N
+16 dB
Estimated 10th-90th percentile
+2.6 to +22.8 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 14, moderate (-15 to -9 dB) 102, strong (≥ -8 dB) 5,377.

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 DJ7M 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 DJ7M

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
JN49 · 4,254 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
920 km (approx.)
Last such locator decoded
2026-10-07 06:58 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 UTCBandDJ7M S/NCounterpartCounterpart S/NMsgsCapture
10-07 06:57 80m +8 / - LU2BA - / - 3 Partial capture
10-07 06:16 80m +14 / - KC9USW - / -5 4 ✓ Closing fragment
10-07 06:14 80m +16 / - NN0F - / -10 2 ✓ Closing fragment
10-07 06:11 80m +12 / - KB2TDH - / 0 3 ✓ Closing fragment
10-07 06:09 80m +10 / - KY6AA - / -8 5 ✓ Closing fragment
10-07 06:06 80m - / - IZ2EWN -10 / - 2 Partial capture
10-07 06:06 80m - / - DL1UDO -8 / - 4 Partial capture
10-07 06:05 80m +8 / - AB4FJ - / -7 2 ✓ Closing fragment
10-07 06:03 80m +9 / - K9BDH - / -10 2 ✓ Closing fragment
10-07 05:55 80m - / -1 SP3IPA +12 / - 3 Partial capture
10-07 05:54 80m +6 / - N2QN - / +4 2 ✓ Closing fragment
10-07 05:52 80m +6 / - KC4WQ - / -8 2 ✓ Closing fragment
10-07 05:49 80m +4 / - NP3RK - / -14 6 ✓ Closing fragment
10-07 05:38 80m +8 / - WB5BHS - / -16 2 ✓ Closing fragment
10-07 05:37 80m +6 / - N9LIG - / -16 2 ✓ Closing fragment
10-07 05:37 80m +10 / - F5RAV -10 / -17 5 Partial capture
10-07 05:36 80m +9 / - KG9OH - / -11 2 ✓ Closing fragment
10-07 05:35 80m - / - DO7TTR -3 / - 3 Partial capture
10-07 05:34 80m +8 / - NE5TX - / -7 2 ✓ Closing fragment
10-07 05:27 80m +7 / - WV8U - / -4 2 ✓ Closing fragment
10-07 05:27 80m - / - F5RAV -5 / - 2 Partial capture
10-07 05:26 80m +11 / - AA5H - / -10 2 ✓ Closing fragment
10-07 05:25 80m +5 / - K8OS - / -7 2 ✓ Closing fragment
10-06 19:40 80m - / - OE9GWV -14 / - 3 Partial capture
10-06 19:38 80m +22 / - VK2LAW - / -5 3 ✓ Closing fragment
10-06 18:59 80m +21 / - JH1FNU - / - 8 Partial capture
10-06 17:11 80m +20 / - BD8FWI - / -14 2 ✓ Closing fragment
10-06 17:09 80m +24 / - BG5JGG - / - 3 Partial capture
10-06 06:30 80m - / - ON4KEB -6 / - 5 Partial capture
10-06 06:26 80m +10 / - W5XO - / - 4 Partial capture
10-06 06:21 80m +10 / - GM6URC - / -15 2 ✓ Closing fragment
10-06 06:20 80m - / - DO7RMS -8 / - 2 Partial capture
10-06 06:20 80m +10 / - AC9HP - / -15 2 ✓ Closing fragment
10-06 06:19 80m +8 / - K3ATA - / -8 2 ✓ Closing fragment
10-06 06:18 80m +10 / - K4YT - / +2 2 ✓ Closing fragment
10-06 06:17 80m +10 / - KB8CR - / -1 2 ✓ Closing fragment
10-06 06:16 80m - / - DM2GG -12 / - 5 Partial capture
10-06 06:14 80m +9 / - N8F - / +4 4 ✓ Closing fragment
10-05 21:03 80m - / - DL7ACN -3 / - 3 Partial capture
10-05 20:53 80m +23 / - GD3SKZ - / - 18 Partial capture
10-05 20:50 80m +23 / - VU2CPL - / -8 3 ✓ Closing fragment
10-05 20:48 80m +20 / - GD3SKZ - / - 3 Partial capture
10-05 20:27 80m +24 / -3 UX5UO +7 / -10 6 ✓ Full exchange observed
10-05 20:24 80m +24 / - HB3YOY -4 / -19 4 ✓ Closing observed
10-05 20:19 80m +24 / - EB4DMH - / -12 2 ✓ Closing fragment
10-05 20:18 80m +25 / - JL1RUC - / - 2 ✓ Closing fragment
10-05 20:16 80m +24 / - JR4DSM - / -19 2 ✓ Closing fragment
10-05 20:15 80m +24 / - BA6IM - / -18 2 ✓ Closing fragment
10-05 20:12 80m - / -9 SQ2JYJ +3 / - 3 Partial capture
10-05 20:04 80m +17 / - VK3EW - / -1 9 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
061230 +13  508  KB2TDH DJ7M 73
061300 +11  508  CQ DX DJ7M JN49 (x2)
061400 +16  508  NN0F DJ7M -10 (x2)
061500 +15  508  CQ DX DJ7M JN49 (x2)
061600 +14  508  KC9USW DJ7M -05 (x4)
061800 +15  508  CQ DX DJ7M JN49
065730  +8  507  LU2BA DJ7M JN49 (x3)
160m 
UTC    dB Audio  Message
185200 +17  850  DJ7M RR73; UA4FEN <...> -12
185200  -9 2477  DJ7M IZ0BVU R+06
185215 +14  409  LZ2IP DJ7M 73
185230  -1 2478  DJ7M IZ0BVU R+02
185245 +13  409  IZ0BVU DJ7M RR73
185300  -2 2478  DJ7M IZ0BVU 73
184515 +17  456  VK3ALS DJ7M JN49 (x4)
184745 +21  456  CQ DX DJ7M JN49
184800 -18 1152  DJ7M IK7SHC JN80
184815 +24  456  CQ DX DJ7M JN49 (x3)
40m 
UTC    dB Audio  Message
205100  +6 1084  D2ACE DJ7M R-15 (x2)
205300  +5 1084  YO4LUP DJ7M RR73
205345 -16 2210  DJ7M G4DBW JO01
205400  +1 1084  UT5UGR DJ7M R-21
205415 -19 1202  DJ7M UT5UGR RR73
205430  +6 1084  UT5UGR DJ7M 73
205545 -18 2210  DJ7M G4DBW R+02 (x2)
063200 -12 1084  HI8UD DJ7M JN49 (x4)
063415  +5  683  DJ7M SQ9CXH JO90 (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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