SP9GCZ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: JO83

Receiver-side FT8 activity involving SP9GCZ, decoded by SO8OO in southeastern Poland. 7,451 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, across 12 UTC dates in the available aggregate history. Observed between 2026-09-05 and 2026-10-02.

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 7,451 FT8 messages attributed to SP9GCZ as the transmitting token by decoded message structure across 12 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (38%), followed by 160 m (32%) and 40 m (30%). The busiest six-hour window was 16:00-22:00 UTC, containing 36% of decodes. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (69%); the estimated median was -2 dB.

Overview

7,451

Messages attributed

UTC dates decoded

337

Active 15-min windows

-2 dB

Estimated median S/N

Bands

160m · 2,421 80m · 2,819 40m · 2,211

First attributed message: 2026-09-05
Last attributed message: 2026-10-02 23:59 UTC

Observed FT8 message patterns

Attributed sample: 7,451 messages
Active dates: 12 UTC dates
Estimated median S/N: -2 dB
Estimated 10th-90th percentile: -16.5 to +12 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 855, moderate (-15 to -9 dB) 1,422, strong (≥ -8 dB) 5,174.

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 SP9GCZ in decoded directed-looking exchanges:

G7LHK · England ×4 DL9KM · Fed. Rep. of Germany ×3 SP9WAZ · Poland ×3 DL1IP · Fed. Rep. of Germany ×3 EU1AFX · Belarus ×3 IQ0YA · Italy ×3 M8FQT · England ×3 LA4O · Norway ×3 DD7EE · Fed. Rep. of Germany ×2 DL3FBI · Fed. Rep. of Germany ×2 ES2AJ · Estonia ×2 R7CD · European Russia ×2

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 SP9GCZ

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: JO83 · 6,279 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 515 km (approx.)
Last such locator decoded: 2026-10-02 23:59 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	SP9GCZ S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-04 13:20	10m	- / -4	CT3MD	-9 / -	3	✓ Closing fragment
10-04 11:32	10m	- / +5	CT7AUT	-21 / -	3	✓ Closing fragment
10-03 16:51	80m	- / -	II5GG	-1 / -	10	Partial capture
10-03 00:14	40m	- / -	N1LYP	-15 / -	3	Partial capture
10-03 00:06	40m	- / 0	F1IQH	+4 / -	4	Partial capture
10-03 00:02	40m	- / -7	W2CG	-15 / -	6	✓ Closing fragment
10-03 00:00	40m	- / -6	MW7RHR	-7 / -	3	✓ Closing fragment
10-03 00:00	40m	- / -	RZ4FWA	-8 / -	3	Partial capture
10-02 23:50	80m	+6 / -	KG3V	- / -24	2	Partial capture
10-02 23:47	80m	+1 / +1	IW1GB	-8 / -	3	✓ Closing observed
10-02 23:46	80m	+11 / -	ON1JP	-15 / -23	4	✓ Full exchange observed
10-02 23:42	80m	- / -12	EC3A	-8 / -	3	✓ Closing fragment
10-02 23:42	80m	+14 / -	EB4SM	- / -2	2	✓ Closing fragment
10-02 23:40	80m	+12 / -10	DO8JB	-6 / 0	5	✓ Full exchange observed
10-02 23:37	80m	- / -10	EC3A	-6 / -	2	Partial capture
10-02 23:36	80m	- / -15	EA5W	-5 / -	5	✓ Closing fragment
10-02 23:36	80m	0 / -3	ON4MAP	-12 / -6	4	✓ Full exchange observed
10-02 19:52	160m	0 / -	R3YBG	- / -9	2	✓ Closing fragment
10-02 19:50	160m	-4 / -	OK1AWC	0 / +9	3	✓ Closing observed
10-02 19:49	160m	- / -	OZ0A	+6 / -	2	Partial capture
10-02 19:48	160m	- / -	RU3FM	-2 / -	2	Partial capture
10-02 19:41	160m	- / -	9A4ZM	+5 / -	2	Partial capture
10-02 19:40	160m	- / -	RU3FM	-6 / -	2	Partial capture
10-02 19:29	160m	- / -	DK5IR	-16 / -	2	Partial capture
10-02 19:22	160m	- / -	RU3FM	-2 / -	4	Partial capture
10-02 19:17	160m	- / -	RU3FM	-4 / -	3	Partial capture
10-02 19:16	160m	+12 / -	RD7O	-17 / -14	2	Partial capture
10-02 19:13	160m	- / -	DO8TZ	-14 / -	2	Partial capture
10-02 19:11	160m	- / -	RU3FM	+2 / -	2	Partial capture
10-02 19:07	160m	+14 / -	UR5BIO	- / -15	3	Partial capture
10-02 19:03	160m	- / -	RA1N	+3 / -	2	Partial capture
10-02 19:03	160m	- / -	RU3FM	-6 / -	2	Partial capture
10-02 18:59	160m	- / -	9A4ZM	-4 / -	2	Partial capture
10-02 18:58	160m	- / -	R3YBG	-11 / -	5	Partial capture
10-02 18:58	160m	- / -	RU3FM	-8 / -	2	Partial capture
10-02 18:55	160m	- / -	9A4ZM	+8 / -	2	Partial capture
10-02 18:54	160m	- / -	SQ4PKO	-11 / -	5	Partial capture
10-02 18:52	160m	- / -	RU3FM	-10 / -	2	Partial capture
10-02 18:48	160m	- / -	9A4ZM	+9 / -	2	Partial capture
10-02 18:44	160m	+9 / -8	R2SDZ	0 / -	8	✓ Full exchange observed
10-02 18:44	160m	+11 / +3	SP3EIE	-1 / -	5	✓ Full exchange observed
10-02 18:43	160m	- / -	HF5A	+1 / -	3	Partial capture
10-02 18:40	160m	- / +2	SP4LIN	+8 / -	4	Partial capture
10-02 18:39	160m	- / -	9A4ZM	+6 / -	2	Partial capture
10-02 18:34	160m	- / -	R4WR	-12 / -	2	Partial capture
10-02 18:32	160m	+9 / -4	SQ5MJX	+16 / -	6	✓ Full exchange observed
10-02 18:18	160m	- / -	9A4ZM	+12 / -	2	Partial capture
10-02 18:18	160m	- / -	HF5A	+2 / -	3	Partial capture
10-02 18:17	160m	- / -	LA8ZIA	-18 / -	3	Partial capture
10-02 18:03	160m	- / -	SP1MGM	+2 / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

10m

UTC    dB Audio  Message
113230 -21 1474  SP9GCZ CT7AUT IM67 (x3)
132000  -8 1008  SP9GCZ CT3MD IM13 (x3)

80m

UTC    dB Audio  Message
235000  +4  711  KG3V SP9GCZ -24 (x2)
235130  +8  711  CQ SP9GCZ JO83 (x3)
165145  +5 1489  SP9GCZ II5GG JN53 (x10)

40m

UTC    dB Audio  Message
000145  -8 2027  SP9GCZ RZ4FWA LO23
000145  -8  746  SP9GCZ MW7RHR 73
000215 -17 1932  SP9GCZ W2CG FN20 (x6)
000615  -2  746  SP9GCZ F1IQH JN27 (x4)
001400 -17 2138  SP9GCZ N1LYP FN42 (x3)

160m

UTC    dB Audio  Message
195400  +1  709  CQ SP9GCZ JO83
195415  +3  705  SP9GCZ 9A4ZM JN86
195430  +3  710  CQ SP9GCZ JO83 (x13)

60m

UTC    dB Audio  Message
052815 -11 1820  SP9GCZ IK4CBO JN54

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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