DO7SP — 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 DO7SP, decoded by SO8OO in southeastern Poland. 72 FT8 messages attributed to this token as transmitter, on 80m, 10m, across 10 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-10-09.

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 72 FT8 messages attributed to DO7SP as the transmitting token by decoded message structure across 10 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (54%), followed by 10 m (46%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-11 dB

Estimated median S/N

Bands

80m · 39 10m · 33

First attributed message: 2026-06-08
Last attributed message: 2026-10-09 07:39 UTC

Observed FT8 message patterns

Attributed sample: 72 messages
Active dates: 10 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -19 to +5 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 17, moderate (-15 to -9 dB) 26, strong (≥ -8 dB) 29.

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 DO7SP in decoded directed-looking exchanges:

S55X · Slovenia ×2 DH3DX · Fed. Rep. of Germany DK7JP · Fed. Rep. of Germany DL9KM · Fed. Rep. of Germany DM5KM · Fed. Rep. of Germany DO7RMS · Fed. Rep. of Germany EA2EWL · Spain F4BJN · France F5PBG · France G3TKT · England HB3YOY · Switzerland HB9MZI · Switzerland

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 DO7SP

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 · 25 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,063 km (approx.)
Last such locator decoded: 2026-10-09 07:38 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 UTC	Band	DO7SP S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-09 07:37	80m	-20 / +2	DM5KM	+2 / +6	4	✓ Full exchange observed
10-09 07:37	80m	- / -	SP5EXA	+6 / -	3	Partial capture
10-09 07:33	80m	- / +6	DH3DX	-24 / -	3	✓ Closing fragment
10-09 07:31	80m	-19 / -	HB9MZI	- / -5	2	✓ Closing fragment
10-08 06:59	80m	-12 / -14	S55X	-14 / -14	5	✓ Full exchange observed
10-08 06:55	80m	-6 / -	G3TKT	- / -15	2	✓ Closing fragment
10-08 06:55	80m	-11 / +1	DL9KM	-11 / -8	7	✓ Full exchange observed
10-08 06:54	80m	-6 / 0	DK7JP	-18 / +3	5	✓ Full exchange observed
10-08 06:53	80m	-7 / -	M0MLS	- / +1	2	✓ Closing fragment
10-01 06:30	80m	-16 / -	WD1V	- / -	2	Partial capture
10-01 06:27	80m	-13 / -7	HB3YOY	-17 / +10	5	✓ Full exchange observed
10-01 06:27	80m	-12 / -	PE1NPS	-20 / +1	4	✓ Closing observed
10-01 06:26	80m	-12 / -	EA2EWL	- / -18	2	✓ Closing fragment
10-01 06:24	80m	-14 / -	F5PBG	- / +2	2	✓ Closing fragment
10-01 06:19	80m	-10 / -	F4BJN	- / -5	2	✓ Closing fragment
10-01 06:19	80m	-14 / 0	DO7RMS	-12 / -4	6	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
073300 -24 1712  DO7SP DH3DX JO31
073315 -18 1712  PC1K DO7SP RR73
073400 -23 1712  DO7SP DH3DX R+06 (x2)
073700  +6 1712  DO7SP SP5EXA KO02
073715 -23 1601  CQ DO7SP JN39
073730  +7 1712  DO7SP SP6FME JO90
073745 -19 1601  DM5KM DO7SP +06
073800  +8 1712  DO7SP SP5EXA KO02
073800  +3  745  DO7SP DM5KM R+02
073815 -20 1600  DM5KM DO7SP RR73
073830  +5 1712  DO7SP SP5EXA KO02
073830  +1  745  DO7SP DM5KM 73
073845 -21 1601  CQ DO7SP JN39                         a1
073945 -24 1601  DL9YAO DO7SP -07

10m

UTC    dB Audio  Message
071930  -9 1306  VK3BE DO7SP JN39
072200  -8 1855  CQ DO7SP JN39 (x3)

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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