SP9DSR — 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: Poland Most frequent locator attributed to this token: JN99

Receiver-side FT8 activity involving SP9DSR, decoded by SO8OO in southeastern Poland. 9 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 3 UTC dates in the available aggregate history. Observed between 2026-07-26 and 2026-10-23.

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 9 FT8 messages attributed to SP9DSR 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 (78%), followed by 40 m (22%). In this small sample, the estimated median decoder S/N was -18 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-18 dB

Estimated median S/N

Bands

80m · 7 40m · 2

First attributed message: 2026-07-26
Last attributed message: 2026-10-23 22:17 UTC

Observed FT8 message patterns

Attributed sample: 9 messages
Active dates: 3 UTC dates
Estimated median S/N: -18 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 6, moderate (-15 to -9 dB) 2, 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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with SP9DSR in decoded directed-looking exchanges:

UA4FKT · European Russia ×2 CR7CDR · Portugal GJ0KYZ · Jersey PI4DX · Netherlands RC5F · European Russia YO3SL · Romania 4O7CC · Montenegro DK5ON · Fed. Rep. of Germany R5AV · European Russia DL3IKE · Fed. Rep. of Germany DO6AZ · Fed. Rep. of Germany HA7VC/P · Hungary

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 SP9DSR

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: JN99 · 7 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 206 km (approx.)
Last such locator decoded: 2026-10-23 22:17 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	SP9DSR S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-23 21:47	80m	- / -22	UA4FKT	+6 / -	3	✓ Closing fragment
10-23 21:42	80m	- / -14	HA7VC/P	-1 / -	2	✓ Closing fragment
10-23 21:36	80m	- / -8	G0HSP	-16 / -	2	Partial capture
10-23 21:32	80m	-18 / -4	PE1HTB	+11 / -3	3	✓ Full exchange observed
10-23 21:30	80m	- / -3	DL3IKE	-2 / -	2	✓ Closing fragment
10-23 21:27	80m	- / -13	DO6AZ	+14 / -	2	✓ Closing fragment
09-05 22:19	40m	- / -19	4O7CC	0 / -	2	✓ Closing fragment
09-05 22:14	40m	- / -12	4O7CC	-2 / -	2	Partial capture
07-26 21:35	40m	- / -10	R5AV	-11 / -	2	✓ Closing fragment
07-26 21:29	40m	- / -	R2AL	0 / -	3	Partial capture
07-26 21:29	40m	- / -19	UA4FKT	-6 / -	3	✓ Closing fragment
07-26 21:24	40m	- / +2	DK5ON	-19 / -	2	✓ Closing fragment
07-26 19:25	20m	- / -9	YO3SL	-11 / -	2	✓ Closing fragment
07-26 11:12	20m	- / -	RA6OY	+5 / -	4	Partial capture
07-26 11:12	20m	- / -13	RC5F	-10 / -	4	✓ Closing fragment
07-26 10:36	10m	- / -	PI4DX	-15 / -	3	✓ Closing fragment
07-26 10:22	10m	- / -11	GJ0KYZ	-16 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
213045  -6 1360  SP9DSR DL3IKE RR73
213215 +11 1023  SP9DSR PE1HTB -04
213300 -18 1022  PE1HTB SP9DSR R-03 (x2)
213600 -15 1563  SP9DSR G0HSP -08 (x2)
213715  -7 1833  SP9DSR R1CBW -14
214200  +1 2052  SP9DSR HA7VC/P -14 (x2)
214500 -24 1831  R1CBW SP9DSR JN99
214615  -4 1871  SP9DSR SP9TBT/5 -21
214745  +4 1870  SP9DSR UA4FKT LO23 (x3)
221745 -15  972  SP9PLK SP9DSR JN99

40m

UTC    dB Audio  Message
212930  -7 1752  SP9DSR UA4FKT LO23
212930  -3  957  SP9DSR R2AL KO85
213000  -5 1752  SP9DSR UA4FKT R-19
213000  +4  957  SP9DSR R2AL KO85
213030  -5 1752  SP9DSR UA4FKT 73
213030  -1  957  SP9DSR R2AL KO85
213530  -9 1751  SP9DSR R5AV -10 (x2)
221430  -4 2271  SP9DSR 4O7CC -12 (x2)
221530  +3 2271  SP9DSR RR73; CT1AGS <...> -10
221930  +0 2271  SP9DSR 4O7CC -19 (x2)
214015 -10  915  SP9DSR EA1FYL -06
215545 -19 1714  SP9DSR EA7L -12

10m

UTC    dB Audio  Message
102200 -17 1405  SP9DSR GJ0KYZ -11 (x2)
103600 -14 1058  SP9DSR PI4DX JO21 (x3)
104815 -18 2158  SP9DSR CR7CDR RR73

20m

UTC    dB Audio  Message
111200  -6  959  SP9DSR RC5F KO85
111200  +6  325  SP9DSR RA6OY KN88
111230  -7  959  SP9DSR RC5F R-13
111230  +7  325  SP9DSR RA6OY KN88
111300 -14  959  SP9DSR RC5F R-13
111300  +1  325  SP9DSR RA6OY KN88
111330 -13  959  SP9DSR RC5F 73
111330  +7  325  SP9DSR RA6OY KN88
192515 -14 1580  SP9DSR YO3SL -09 (x2)

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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