DO5SA — 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: JO51

Receiver-side FT8 activity involving DO5SA, decoded by SO8OO in southeastern Poland. 49 FT8 messages attributed to this token as transmitter, on 80m, across 3 UTC dates in the available aggregate history. Observed between 2026-10-25 and 2026-10-30.

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 49 FT8 messages attributed to DO5SA as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (100%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (92%); the estimated median was -1 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-1 dB

Estimated median S/N

Bands

80m · 49

First attributed message: 2026-10-25
Last attributed message: 2026-10-30 18:21 UTC

Observed FT8 message patterns

Attributed sample: 49 messages
Active dates: 3 UTC dates
Estimated median S/N: -1 dB
Estimated 10th-90th percentile: -8 to +5 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 3, strong (≥ -8 dB) 45.

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 DO5SA in decoded directed-looking exchanges:

DA6PI · Fed. Rep. of Germany ×2 DA6WM · Fed. Rep. of Germany ×2 DA6NEL · Fed. Rep. of Germany DD1GN · Fed. Rep. of Germany DF3XP · Fed. Rep. of Germany DJ4TW · Fed. Rep. of Germany DL1NB · Fed. Rep. of Germany DL6AZ · Fed. Rep. of Germany DO4HBE · Fed. Rep. of Germany DO6ZMR · Fed. Rep. of Germany HB3YTK · Switzerland HF5A · Poland

Most frequent locator attributed to DO5SA

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: JO51 · 19 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 779 km (approx.)
Last such locator decoded: 2026-10-30 18:16 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	DO5SA S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-30 18:17	80m	-5 / -12	IU2UDS	-10 / -	2	✓ Closing observed
10-30 18:17	80m	+3 / +2	DO6ZMR	-11 / -9	11	✓ Full exchange observed
10-30 18:14	80m	+1 / -	SV1DKR	- / -15	2	✓ Closing fragment
10-30 18:12	80m	+4 / -	DJ4TW	- / -18	2	✓ Closing fragment
10-28 18:21	80m	-1 / -	DO4HBE	- / -23	3	✓ Closing fragment
10-28 18:18	80m	-6 / -	DL1NB	- / -5	2	✓ Closing fragment
10-28 18:17	80m	-6 / +5	DF3XP	-9 / -1	5	✓ Full exchange observed
10-28 18:12	80m	-14 / -	DO4HBE	- / -18	2	Partial capture
10-28 18:02	80m	+9 / -	HF5A	0 / -	2	✓ Closing observed
10-25 18:17	80m	+3 / +5	SP5DFK/QRP	-10 / -14	2	Partial capture
10-25 18:13	80m	- / -10	DL6AZ	-4 / -	4	✓ Closing fragment
10-25 18:10	80m	-4 / +4	RA2FU	-6 / -15	7	✓ Full exchange observed
10-25 18:10	80m	-4 / -25	SM7MDI	-15 / -5	7	✓ Full exchange observed
10-25 18:06	80m	-1 / -16	HB3YTK	-6 / 0	5	✓ Full exchange observed
10-25 18:02	80m	- / -5	DL9WO	-8 / -	2	Partial capture
10-25 17:58	80m	- / -	OK1VIG	-20 / -	2	Partial capture
10-25 17:52	80m	- / +2	DD1GN	-5 / -	4	✓ Closing fragment
10-25 17:51	80m	- / -	DA6NEL	+8 / -	3	✓ Closing fragment
10-25 17:49	80m	-8 / -	DA6WM	-6 / -	3	✓ Closing observed
10-25 17:48	80m	-3 / -	DA6PI	-16 / -	2	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
181615  +5 1603  CQ DO5SA JO51 (x2)
181700 -18 1604  DO5SA DO6ZMR JO53
181730 -10 2631  DO5SA IU2UDS R-12
181745  -5 1603  IU2UDS DO5SA RR73
181815  +6 1603  DO6ZMR DO5SA -09 (x6)
182100 -14 1603  DO5SA DO6ZMR R+02 (x2)
182145  +1 1603  DO6ZMR DO5SA RR73
182200  -7 1603  DO5SA DO6ZMR 73

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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