SP5MDR — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: KO02

Receiver-side FT8 activity involving SP5MDR, decoded by SO8OO in southeastern Poland. 180 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 7 UTC dates in the available aggregate history. Observed between 2026-07-11 and 2026-09-15.

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 180 FT8 messages attributed to SP5MDR as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (64%), followed by 40 m (36%). Most decodes (100%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (83%); the estimated median was -1 dB.

Overview

180

Messages attributed

UTC dates decoded

Active 15-min windows

-1 dB

Estimated median S/N

Bands

80m · 115 40m · 65

First attributed message: 2026-07-11
Last attributed message: 2026-09-15 17:17 UTC

Observed FT8 message patterns

Attributed sample: 180 messages
Active dates: 7 UTC dates
Estimated median S/N: -1 dB
Estimated 10th-90th percentile: -11 to +12 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 27, strong (≥ -8 dB) 149.

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 SP5MDR in decoded directed-looking exchanges:

SP9CXN · Poland ×2 DK8HC · Fed. Rep. of Germany DL7UKM · Fed. Rep. of Germany DL9KM · Fed. Rep. of Germany HA7TM · Hungary HG8LXL · Hungary SP5ROM · Poland SP9KKA · Poland 9A4ZM · Croatia DL5JMN · Fed. Rep. of Germany DO1FZL · Fed. Rep. of Germany DO9BAU · Fed. Rep. of Germany

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 SP5MDR

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: KO02 · 120 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 290 km (approx.)
Last such locator decoded: 2026-09-15 17:14 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	SP5MDR S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-15 17:14	40m	-10 / -1	SQ9SZ	-3 / -22	8	Partial capture
09-15 17:09	40m	-10 / -11	DL7UKM	-2 / -3	7	✓ Full exchange observed
09-15 17:09	40m	- / -	YO6LM	+11 / -	2	Partial capture
09-15 17:06	40m	-7 / -13	DL9KM	0 / -9	5	✓ Full exchange observed
09-15 17:06	40m	- / -	UX7QV	-9 / -	2	Partial capture
09-15 17:05	40m	-7 / -	SM4IED	- / -	3	Partial capture
09-15 16:59	40m	-7 / -	3Z100PKP	- / -19	3	Partial capture
09-15 16:58	40m	-10 / -	II8IHBC	- / -19	2	Partial capture
09-15 16:54	40m	-16 / -	II8IHBC	- / -	4	Partial capture
09-15 16:51	40m	-11 / -13	9A4ZM	0 / -5	3	Partial capture
09-15 16:50	40m	- / -	S51PV	-8 / -	6	Partial capture
09-15 16:46	40m	-10 / -8	DK8HC	-10 / -	6	✓ Closing observed
09-15 16:46	40m	- / -18	SP5MXZ	-6 / -	4	Partial capture
09-15 16:44	40m	- / -4	HA7TM	+10 / -	4	✓ Closing fragment
09-15 16:44	40m	-9 / -7	HG8LXL	-2 / -	9	✓ Closing observed
09-15 16:38	40m	-5 / -12	SP9KKA	+6 / -8	12	✓ Full exchange observed
09-12 19:23	80m	-1 / -	IQ4JO	-1 / -17	5	Partial capture
09-12 19:23	80m	0 / -	RA4Y	+2 / +8	5	Partial capture
09-12 19:20	80m	+4 / -	SN100PKP	- / -	4	Partial capture
09-12 19:18	80m	-2 / -	UB0SMX/P	- / -	3	Partial capture
09-12 19:14	80m	-2 / -20	F1PBZ	-6 / -3	3	✓ Full exchange observed
09-12 19:13	80m	-1 / -6	HF5A	+9 / +9	5	✓ Full exchange observed
09-12 19:09	80m	-1 / -8	R2EA	-11 / +7	3	✓ Full exchange observed
09-12 19:07	80m	-7 / -8	LY2EW	0 / -	5	✓ Full exchange observed
09-12 19:05	80m	-4 / -6	OK1UOZ	+12 / -	5	✓ Full exchange observed
09-12 19:00	80m	+6 / -8	9A4ZM	+11 / +9	5	✓ Full exchange observed
09-12 18:59	80m	+11 / -9	DL5JMN	+3 / +6	5	✓ Full exchange observed
09-12 18:54	80m	+2 / -14	LZ2VQ	-1 / -14	13	✓ Full exchange observed
09-12 18:43	80m	+3 / -	SQ7SE	0 / -9	14	✓ Full exchange observed
09-12 18:37	80m	+6 / -	SQ7SE	- / -	7	Partial capture
09-12 16:20	40m	-9 / -	SQ9PCO	- / -	5	Partial capture
09-12 16:11	80m	+20 / -17	DO1FZL	+3 / -1	5	✓ Full exchange observed
09-12 15:21	40m	-12 / -	SQ9AWN	- / -	2	Partial capture
08-29 19:10	80m	- / -	DL9KM	-10 / -	7	Partial capture
08-29 19:06	80m	- / -	9A4ZM	+8 / -	2	Partial capture
08-29 19:06	80m	+14 / -9	DO9BAU	-1 / +7	11	✓ Full exchange observed
08-29 19:03	80m	+13 / +10	SP9CXN	+12 / -	8	✓ Full exchange observed
08-28 20:23	80m	+13 / -	SQ3WL	- / -	3	Partial capture
08-28 20:12	80m	+12 / -8	HA7BLT	+8 / +5	6	✓ Full exchange observed
08-28 20:06	80m	+12 / -	SQ3WL	- / -	4	Partial capture
08-28 20:04	80m	+4 / -7	SP5DFK	0 / -2	6	Partial capture
08-28 20:03	80m	- / -	DJ5FS	-5 / -	4	Partial capture
08-28 20:03	80m	+10 / +8	SP7AH	+18 / -	5	✓ Full exchange observed
08-28 20:00	80m	+3 / -2	SM6NOC	+8 / -	7	✓ Full exchange observed
08-28 19:58	80m	0 / -	SQ3WL	- / -	2	Partial capture
08-27 18:40	40m	-8 / -	HF30NPN	- / +9	13	Partial capture
08-18 17:01	40m	- / -13	SP5ROM	-17 / -	2	✓ Closing fragment
07-11 18:54	80m	+5 / +1	SP8BJU	+11 / -	3	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
170930  +2 1496  SP5MDR DL7UKM JO62
170945 -10 1795  DL7UKM SP5MDR -03
171000  +1 1496  SP5MDR DL7UKM R-11 (x2)
171045  -9 1795  DL7UKM SP5MDR RRR
171100  -6 1794  SP5MDR DL7UKM 73
171315  -8 1456  TK/4O7CC SP5MDR KO02
171415  -8 1567  SQ9SZ SP5MDR KO02
171430  -3  980  SP5MDR SQ9SZ -01
171445 -10 1567  SQ9SZ SP5MDR KO02
171500  -4  980  SP5MDR SQ9SZ -01 (x3)
171715 -11 1567  SQ9SZ SP5MDR R-22 (x2)

80m

UTC    dB Audio  Message
192100  +0  366  SN100PKP SP5MDR KO02 (x3)
192230  +8  366  CQ SP5MDR KO02 (x2)
192315  +1 2104  SP5MDR RA4Y LO35
192315  -1 2430  SP5MDR IQ4JO JN63
192330  +0  366  RA4Y SP5MDR +08
192345  +1 2104  SP5MDR RA4Y LO35
192400  +3  366  IQ4JO SP5MDR -17
192415  +3 2104  SP5MDR RA4Y LO35
192430  -6  366  IQ4JO SP5MDR -17
192445  +3 2104  SP5MDR RA4Y LO35
192500  +0  366  IQ4JO SP5MDR -17 (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.

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