DC7MA — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JN39

Receiver-side FT8 activity involving DC7MA, decoded by SO8OO in southeastern Poland. 1,236 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 50 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-17.

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 1,236 FT8 messages attributed to DC7MA as the transmitting token by decoded message structure across 50 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (36%), followed by 40 m (35%) and 60 m (12%). Most decodes (79%) fell within the six-hour window 17:00-23:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9.2 dB.

Overview

1,236
Messages attributed
50
UTC dates decoded
146
Active 15-min windows
-9.2 dB
Estimated median S/N

Bands

First attributed message: 2026-06-07
Last attributed message: 2026-10-17 09:16 UTC

Observed FT8 message patterns

Attributed sample
1,236 messages
Active dates
50 UTC dates
Estimated median S/N
-9.2 dB
Estimated 10th-90th percentile
-19.1 to 0 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 272, moderate (-15 to -9 dB) 404, strong (≥ -8 dB) 560.

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 DC7MA

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
JN39 · 708 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,063 km (approx.)
Last such locator decoded
2026-10-17 09:15 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 UTCBandDC7MA S/NCounterpartCounterpart S/NMsgsCapture
10-23 12:51 40m - / -11 DK1HSI -12 / - 2 ✓ Closing fragment
10-23 12:49 40m - / -16 LY8O -6 / - 2 ✓ Closing fragment
10-17 09:15 80m -20 / - DO7TTR - / - 3 ✓ Closing fragment
10-17 09:13 80m -20 / - DH0ZAL - / - 3 ✓ Closing fragment
10-16 09:35 40m - / -27 IK0CHU -20 / - 2 Partial capture
10-16 09:24 40m - / - IK0CHU -16 / - 3 Partial capture
10-16 09:09 40m - / -16 HB9ELE -1 / - 2 ✓ Closing fragment
10-14 20:58 80m +6 / +9 SM4MI -8 / +1 4 ✓ Full exchange observed
10-14 20:57 80m +7 / - DA6DNA - / -9 3 ✓ Closing fragment
10-14 20:55 80m +12 / -3 OH4TQ +1 / - 4 ✓ Closing observed
10-14 20:52 80m -9 / - M9DNC - / +3 3 ✓ Closing fragment
10-14 20:50 80m -13 / - IK8MID +4 / -6 4 ✓ Closing observed
10-14 20:48 80m -8 / - DO6WA - / - 3 Partial capture
10-14 20:46 80m -9 / - ER5DX - / - 4 Partial capture
10-14 20:44 80m -7 / - MM0ULL - / 0 3 ✓ Closing fragment
10-14 20:42 80m -5 / -9 DL6ZXG +8 / -9 6 ✓ Full exchange observed
10-14 20:37 60m - / -12 EA5KBG -13 / - 3 Partial capture
10-14 20:29 60m -14 / - G3TXA - / - 3 Partial capture
10-14 20:27 60m -6 / - OM5KM - / +9 2 ✓ Closing fragment
10-14 20:22 60m -16 / - SP8BJU - / - 4 ✓ Closing fragment
10-14 20:20 60m -14 / - DL2YDX - / - 3 Partial capture
10-10 16:53 40m -12 / - M7KSV - / - 3 Partial capture
10-10 16:50 40m -10 / - ON4CAS - / - 3 ✓ Closing fragment
10-10 16:48 40m -10 / - ON3YDM - / 0 3 ✓ Closing fragment
10-08 20:46 80m -3 / +7 DK2PH +1 / +7 5 ✓ Full exchange observed
10-08 20:44 80m -12 / -17 RA5AD -2 / -5 5 ✓ Full exchange observed
10-08 20:43 80m -12 / -13 YO3AI -6 / -5 5 ✓ Full exchange observed
10-08 20:39 80m -8 / -6 OH8WW +6 / +9 7 ✓ Full exchange observed
10-08 20:37 80m +1 / - GW4HZA -12 / 0 4 ✓ Closing observed
10-08 20:35 80m -8 / - OS8E - / -1 2 ✓ Closing fragment
10-08 20:30 80m -5 / -6 OH7ML -10 / -14 5 ✓ Full exchange observed
10-08 20:28 80m +3 / - DO5HCS - / - 2 Partial capture
10-08 20:25 80m -2 / -8 EI4JFB -14 / - 5 ✓ Full exchange observed
10-08 20:24 80m -2 / - SP9TBT +2 / +9 6 ✓ Closing observed
10-08 20:22 80m -3 / - DO2ANW - / - 4 ✓ Closing fragment
10-08 20:18 80m -5 / -6 OH3CYT -4 / -2 5 ✓ Full exchange observed
10-08 20:12 80m -5 / - ON8LX -8 / - 4 ✓ Closing observed
10-08 20:10 80m -10 / - DO1DQ +2 / - 5 ✓ Full exchange observed
10-08 20:07 80m -14 / +2 DP75BAC -19 / - 3 Partial capture
10-08 20:07 80m -10 / - RA6FCU/P - / - 2 Partial capture
10-08 20:05 80m -11 / -1 DC0GL -11 / - 4 ✓ Closing observed
10-08 20:02 60m -16 / -2 DB6LL/P 0 / - 3 ✓ Full exchange observed
10-08 19:59 60m -18 / -7 G0ABI 0 / - 5 ✓ Full exchange observed
10-08 19:52 60m -16 / - SM7XON - / - 2 ✓ Closing fragment
10-08 19:50 60m -17 / -7 DL9FCK -10 / - 3 ✓ Closing observed
10-08 19:47 60m -24 / -8 DF7RG -4 / - 3 ✓ Closing observed
10-08 19:46 60m -16 / - S51XA - / - 2 Partial capture
10-08 19:18 40m -7 / -19 M7RPY -16 / -2 10 ✓ Full exchange observed
10-08 19:17 40m -20 / - DG8MPI - / +10 2 ✓ Closing fragment
10-08 19:15 40m -8 / - SP0YAGI - / +9 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
165330 -10 1319  M7KSV DC7MA JN39 (x3)
090915  -2  739  DC7MA HB9ELE -16 (x2)
092430 -16 1329  DC7MA IK0CHU JN62 (x5)
133415  -5 1143  DC7MA DM5ME JO52
124945 -10 1791  DC7MA LY8O -16 (x2)
125130 -14  829  DC7MA DK1HSI -11 (x2)
80m
UTC    dB Audio  Message
205630  +6 2302  DC7MA OH4TQ RR73
205645 +12 1913  OH4TQ DC7MA 73
205715  +5 1913  DA6DNA DC7MA JN39 (x3)
205845  +4 1913  SM4MI DC7MA JN39
205900  -8 2100  DC7MA SM4MI +09
205915  +7 1913  SM4MI DC7MA R+01 (x2)
091345 -20 2149  DH0ZAL DC7MA JN39 (x3)
091530 -20 2147  DO7TTR DC7MA JN39 (x3)
60m
UTC    dB Audio  Message
202515 -11 2004  SP8BJU DC7MA 73
202545 -17 2005  CQ DC7MA JN39 (x4)
202745  -8 2005  OM5KM DC7MA +09 (x2)
202845 -10 2005  CQ DC7MA JN39 (x2)
202945 -14 2004  G3TXA DC7MA JN39 (x3)
203730 -13 1063  DC7MA EA5KBG -12 (x3)
20m
UTC    dB Audio  Message
131015  -5 1503  DC7MA LA8OOA RR73
131200 -15 1935  EA5KAI DC7MA JN39
131430 -21 1935  OM7AG DC7MA R+09 (x2)
131530 -18 1935  JJ5NFT DC7MA JN39 (x2)
131700 -16 1935  IZ0RDM DC7MA JN39 (x2)
131800 -10 1935  EA5KAI DC7MA JN39 (x4)
132545 -12 1931  LZ3HI DC7MA JN39
132715 -15 1930  K2TQC DC7MA JN39 (x2)
10m
UTC    dB Audio  Message
121015  -7 2076  DC7MA DO1HKL -18
163330 -19 1130  DC7MA EI8GS RR73

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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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