DL7BO — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO62

Receiver-side FT8 activity involving DL7BO, decoded by SO8OO in southeastern Poland. 122 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, across 7 UTC dates in the available aggregate history. Observed between 2026-08-28 and 2026-09-16.

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 122 FT8 messages attributed to DL7BO as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (91%), followed by 80 m (5%) and 60 m (4%). Most decodes (73%) fell within the six-hour window 12:00-18:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (98%); the estimated median was +13 dB.

Overview

122
Messages attributed
7
UTC dates decoded
19
Active 15-min windows
+13 dB
Estimated median S/N

Bands

First attributed message: 2026-08-28
Last attributed message: 2026-09-16 20:05 UTC

Observed FT8 message patterns

Attributed sample
122 messages
Active dates
7 UTC dates
Estimated median S/N
+13 dB
Estimated 10th-90th percentile
-4 to +18 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 2, strong (≥ -8 dB) 120.

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 DL7BO

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
JO62 · 51 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
675 km (approx.)
Last such locator decoded
2026-09-16 20:05 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 UTCBandDL7BO S/NCounterpartCounterpart S/NMsgsCapture
09-16 20:04 80m -3 / - S09S - / - 2 Partial capture
09-13 17:44 40m +13 / - KH8WW - / - 13 Partial capture
09-13 17:37 40m +18 / - KH8WW - / -10 2 Partial capture
09-12 17:37 40m +13 / - RA3WY/P - / - 8 Partial capture
09-09 18:26 80m -3 / -13 RX3DRC -14 / -16 3 Partial capture
09-09 16:21 60m -6 / -12 Z68PX -10 / -13 7 ✓ Full exchange observed
09-08 16:02 40m +14 / - R4HNX - / -16 2 ✓ Closing fragment
09-08 16:00 40m +16 / - R1WCK - / -11 2 ✓ Closing fragment
09-08 15:56 40m +18 / - RC3LD - / -17 5 ✓ Closing fragment
09-08 15:55 40m +17 / -2 RV3TV 0 / - 3 ✓ Closing observed
09-08 15:53 40m +12 / -13 RU3GC +8 / - 3 ✓ Closing observed
09-08 15:52 40m +18 / - RC7KH - / -12 2 ✓ Closing fragment
09-08 15:51 40m +17 / +10 RD7O +6 / -7 4 ✓ Full exchange observed
09-08 15:48 40m +19 / +1 RD4F +8 / -2 5 ✓ Full exchange observed
09-08 15:47 40m - / - DD7EE -3 / - 3 Partial capture
09-08 15:47 40m +14 / - RK3YWA - / -10 2 ✓ Closing fragment
09-08 15:45 40m +16 / - R2PX 0 / -5 4 ✓ Full exchange observed
09-08 15:44 40m +13 / -6 R3DQT -4 / - 3 ✓ Closing observed
09-08 15:41 40m +16 / -4 UB3KGW -12 / -14 4 ✓ Full exchange observed
09-08 15:39 40m +16 / -6 R3KAB -4 / -13 4 ✓ Full exchange observed
09-08 15:38 40m +18 / - RC9WC -1 / - 2 ✓ Closing observed
09-08 15:37 40m +16 / -14 RM1B -13 / -8 4 ✓ Full exchange observed
09-08 15:34 40m +18 / -8 RW4HD 0 / -3 4 ✓ Full exchange observed
09-08 15:32 40m +16 / - OE3ZIO - / -3 2 ✓ Closing fragment
09-08 15:29 40m +12 / +2 DL9KM -7 / -5 5 ✓ Full exchange observed
09-08 15:28 40m +15 / - MI5JYK - / -16 2 ✓ Closing fragment
09-08 15:25 40m +16 / -4 UB3YCK +2 / -7 4 ✓ Full exchange observed
09-08 15:24 40m +11 / 0 R1943OD -4 / -4 2 Partial capture
09-08 15:23 40m +18 / - UA3ZMQ - / -8 2 Partial capture
09-08 15:20 40m +12 / - RC9WC - / -5 3 Partial capture
08-29 22:58 80m - / - DL9KM +2 / - 5 Partial capture
08-29 22:56 80m +15 / - AA1V - / -17 3 ✓ Closing fragment
08-29 12:05 40m +1 / - RI1FJL - / - 8 Partial capture
08-29 05:52 40m +4 / - OA4ENG - / - 6 Partial capture
08-28 23:44 40m -7 / - 9V1YC - / - 3 Partial capture
08-28 23:09 40m -5 / - TN8GD - / -17 5 ✓ Closing fragment
08-28 22:28 40m +15 / - PV8AJ - / -8 4 ✓ Closing fragment
08-28 22:13 40m +11 / - UG0B - / -10 3 ✓ Closing fragment
08-28 21:45 40m +12 / - V51WH - / -12 5 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m
UTC    dB Audio  Message
225645 +12 1694  AA1V DL7BO JO62 (x3)
225800  +7 1830  DL7BO DL9KM JN68 (x5)
182615  -3 1815  RX3DRC DL7BO -16
182730 -13 1507  DL7BO RX3DRC R-13 (x2)
200445  -2 2810  S09S DL7BO JO62 (x2)
40m
UTC    dB Audio  Message
173715 +18  249  KH8WW DL7BO -10 (x15)
60m
UTC    dB Audio  Message
162145  -9 1005  Z68PX DL7BO -13 (x4)
162400 -11 1638  DL7BO Z68PX R-12
162415  -3 1005  Z68PX DL7BO RR73
162430 -10 1578  DL7BO Z68PX 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.

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