S55GR — 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: Slovenia Most frequent locator attributed to this token: JN75

Receiver-side FT8 activity involving S55GR, decoded by SO8OO in southeastern Poland. 37 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 4 UTC dates in the available aggregate history. Observed between 2026-08-26 and 2026-10-21.

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 37 FT8 messages attributed to S55GR as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (97%), followed by 80 m (3%). Most decodes (84%) fell within the six-hour window 11:00-17:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -15 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-15 dB

Estimated median S/N

Bands

80m · 1 40m · 36

First attributed message: 2026-08-26
Last attributed message: 2026-10-21 11:28 UTC

Observed FT8 message patterns

Attributed sample: 37 messages
Active dates: 4 UTC dates
Estimated median S/N: -15 dB
Estimated 10th-90th percentile: -19 to -12 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 15, moderate (-15 to -9 dB) 21, strong (≥ -8 dB) 1.

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 S55GR in decoded directed-looking exchanges:

E70SZ · Bosnia-Herzegovina ×2 IU3WOH · Italy ×2 DL9KM · Fed. Rep. of Germany F5LPL · France GJ0KYZ · Jersey HB9FEL · Switzerland IK0CHU · Italy OE7FZI · Austria OK1CI · Czech Republic PD4RJ · Netherlands

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 S55GR

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: JN75 · 10 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 708 km (approx.)
Last such locator decoded: 2026-10-21 11:15 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 UTC	Band	S55GR S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-21 11:23	40m	-15 / -	EU1EU	- / -15	8	Partial capture
10-21 11:20	40m	- / -3	DL9KM	-15 / -	5	✓ Closing fragment
10-21 11:17	40m	-8 / -	OE7FZI	- / -2	2	✓ Closing fragment
10-21 11:15	40m	-14 / -	GJ0KYZ	- / 0	2	✓ Closing fragment
09-28 08:01	40m	-16 / +7	OK1CI	-9 / +5	3	✓ Full exchange observed
09-14 23:01	80m	-24 / -11	DO5OT	+9 / -	9	Partial capture
08-26 16:32	40m	- / -22	SP7SZJ	0 / -	25	Partial capture
08-26 16:29	40m	-12 / -	IU3WOH	-10 / -8	4	✓ Closing observed
08-26 16:23	40m	-13 / -	F5LPL	- / 0	2	✓ Closing fragment
08-26 16:22	40m	-16 / -	IK0CHU	-7 / -	8	✓ Closing observed
08-26 16:21	40m	-15 / -15	HB9FEL	-9 / -7	5	✓ Full exchange observed
08-26 16:09	40m	-20 / -7	E70SZ	-5 / -	4	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
111745  -2 2408  OE7FZI S55GR RR73
112000 -14 2408  S55GR PD4RJ 73
112030 -17 1604  S55GR DL9KM JN68 (x5)
112315 -14 2408  EU1EU S55GR R-15 (x8)

80m

UTC    dB Audio  Message
230115 +11 1710  S55GR DO5OT JO62
230130 -24 1710  DO5OT S55GR +16
230145  +4 1710  S55GR DO5OT R-11 (x7)

20m

UTC    dB Audio  Message
152300  -8 1580  S55GR F1PPH JN07

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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