SP7CDG — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: KO01

Receiver-side FT8 activity involving SP7CDG, decoded by SO8OO in southeastern Poland. 240 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, across 8 UTC dates in the available aggregate history. Observed between 2026-06-24 and 2026-09-29.

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 240 FT8 messages attributed to SP7CDG as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (57%), followed by 80 m (35%) and 40 m (5%). Most decodes (88%) 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 (96%); the estimated median was +2 dB.

Overview

240

Messages attributed

UTC dates decoded

Active 15-min windows

+2 dB

Estimated median S/N

Bands

160m · 137 80m · 83 60m · 7 40m · 13

First attributed message: 2026-06-24
Last attributed message: 2026-09-29 15:42 UTC

Observed FT8 message patterns

Attributed sample: 240 messages
Active dates: 8 UTC dates
Estimated median S/N: +2 dB
Estimated 10th-90th percentile: -6 to +11 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 10, strong (≥ -8 dB) 230.

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 SP7CDG in decoded directed-looking exchanges:

7K1CPT · Japan R2DRE · European Russia 5Q1X · Denmark DJ0MAB · Fed. Rep. of Germany HG8LXL · Hungary 3D2USU · Fiji UB6HWF · European Russia

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 SP7CDG

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: KO01 · 190 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 182 km (approx.)
Last such locator decoded: 2026-09-29 15:37 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	SP7CDG S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-29 15:42	80m	+3 / -15	UB6HWF	-7 / -5	5	✓ Full exchange observed
09-29 15:39	80m	+8 / -	UA4FKT	0 / +3	4	Partial capture
09-29 15:30	80m	+4 / -	3D2USU	- / -	14	✓ Closing fragment
09-23 16:57	160m	+6 / -	KH8WW	- / -	22	Partial capture
09-23 16:37	160m	-1 / -	KH8WW	- / -	34	Partial capture
09-21 17:23	160m	-8 / -	R2DRE	- / -8	2	✓ Closing fragment
09-21 17:19	160m	-2 / -	JH0AWC	- / -18	3	Partial capture
09-21 16:50	160m	-1 / -	KH8WW	- / -26	53	Partial capture
09-17 19:53	160m	+14 / -	RI1FJZ	- / -	5	Partial capture
09-17 19:45	160m	+10 / -	RI1FJZ	- / -	2	Partial capture
09-17 18:48	160m	+13 / -	RI1FJZ	- / -26	3	Partial capture
09-17 18:36	160m	-13 / +8	SQ100PKP	-15 / -	2	Partial capture
09-17 18:36	160m	+15 / -	UF6V/UA5D	- / +2	2	Partial capture
09-16 17:11	80m	- / -	R2APC	-8 / -	2	Partial capture
09-16 17:03	80m	-3 / -	KH8WW	- / -	9	Partial capture
09-16 16:48	80m	+5 / -	KH8WW	- / -15	21	Partial capture
09-15 21:19	80m	+2 / -	RI1FJZ	- / -	2	Partial capture
09-15 21:10	80m	+1 / -	RI1FJZ	- / -	12	Partial capture
09-15 20:04	80m	+10 / -	RI1FJZ	- / -15	14	Partial capture
09-15 19:57	80m	+4 / -	RI1FJZ	- / -	3	Partial capture
09-15 19:53	80m	+5 / -	RI1FJZ	- / -	3	Partial capture
09-15 16:10	40m	+4 / -	5Q1X	- / -7	2	✓ Closing fragment
09-15 16:09	40m	+8 / -	F6FHZ	- / -8	2	Partial capture
09-15 16:08	40m	+5 / -3	HG8LXL	-1 / -	4	✓ Closing observed
09-15 16:07	40m	- / -	DJ0MAB	-9 / -	3	✓ Closing fragment
09-15 16:03	40m	-2 / -	RI1FJZ	- / -14	4	Partial capture
09-15 15:58	40m	+7 / -	RI1FJZ	- / -	4	Partial capture
08-29 23:06	160m	+2 / -	RI1FJL	- / -8	9	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
153545  +5  793  3D2USU SP7CDG KO01 (x6)
153900  -1  793  SP7CDG UA4FKT LO23 (x2)
154115  +7  793  UA4FKT SP7CDG +03 (x2)
154200  -7 2651  SP7CDG UB6HWF LN04
154215  +3  793  UB6HWF SP7CDG -05
154230  -6 2651  SP7CDG UB6HWF R-15
154245  +3  793  UB6HWF SP7CDG RR73
154300  -9 2651  SP7CDG UB6HWF 73

160m

UTC    dB Audio  Message
170115  +8 2246  KH8WW SP7CDG KO01 (x15)

40m

UTC    dB Audio  Message
160415  -4 1557  RI1FJZ SP7CDG KO01 (x3)
160700  -3 1416  SP7CDG DJ0MAB JN49 (x2)
160800  -3 1646  SP7CDG HG8LXL KN06
160800  -8 1416  SP7CDG DJ0MAB 73
160830  +1 1646  SP7CDG HG8LXL R-03
160845  +5 1416  HG8LXL SP7CDG RR73
160900  -4 1416  SP7CDG UA4FEN +00
160900  -2 1646  SP7CDG HG8LXL 73
160915  +5 1416  F6FHZ SP7CDG -08 (x2)
161015  +4 1416  5Q1X SP7CDG -07 (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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