SP9BCH — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: KO00

Receiver-side FT8 activity involving SP9BCH, decoded by SO8OO in southeastern Poland. 91 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 11 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-14.

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 91 FT8 messages attributed to SP9BCH as the transmitting token by decoded message structure across 11 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (89%), followed by 80 m (10%) and 20 m (1%). Most decodes (71%) 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 (97%); the estimated median was +4 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

+4 dB

Estimated median S/N

Bands

80m · 9 40m · 81 20m · 1

First attributed message: 2026-06-06
Last attributed message: 2026-09-14 08:24 UTC

Observed FT8 message patterns

Attributed sample: 91 messages
Active dates: 11 UTC dates
Estimated median S/N: +4 dB
Estimated 10th-90th percentile: -3 to +13 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 2, strong (≥ -8 dB) 88.

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 SP9BCH in decoded directed-looking exchanges:

OK1HEH · Czech Republic ×2 A41ZZ · Oman EH7WWA · Spain F5ADE · France F5PTY · France II2WWA · Italy II7WWA · Italy IK1MJK · Italy IQ2PV · Italy LA3LUA · Norway ON8PIE · Belgium 4O7CC · Montenegro

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 SP9BCH

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: KO00 · 41 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 84 km (approx.)
Last such locator decoded: 2026-09-14 08:23 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	SP9BCH S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-14 08:23	40m	+5 / -	SP100PKP	- / -6	3	Partial capture
09-14 08:21	40m	- / -	HA9OA	+10 / -	2	Partial capture
09-14 08:21	40m	+6 / -	GJ0KYZ	- / -12	2	✓ Closing fragment
09-14 08:19	40m	+5 / -	OK1HEH	-3 / +3	3	✓ Closing observed
09-14 08:17	40m	+4 / -	TK5NJ	- / -15	4	✓ Closing fragment
09-13 18:08	40m	+5 / -	II8IHBC	- / -14	2	Partial capture
09-13 18:06	40m	+2 / -	R6HV/P	- / -3	2	Partial capture
09-12 15:14	40m	0 / -	SP2BT	- / -13	2	Partial capture
09-12 15:14	40m	- / -13	UA4FEN	-8 / -	4	Partial capture
09-12 15:13	40m	+6 / -	OZ6NC	- / -16	2	✓ Closing fragment
09-06 20:15	80m	+22 / -15	SP5DFK/QRP	-4 / -5	3	Partial capture
09-06 13:06	40m	- / -	DL7ACA	-4 / -	3	Partial capture
09-06 13:05	40m	0 / 0	3Z100PKP	-12 / 0	2	Partial capture
09-06 10:40	40m	0 / -	4O7CC	- / -10	3	✓ Closing fragment
09-06 09:23	40m	-6 / -	OZ2NYB/P	- / 0	3	Partial capture
09-05 18:56	80m	+13 / -	RA4CQW/P	- / -17	4	Partial capture
08-03 10:04	20m	- / -7	ON8PIE	-16 / -	2	✓ Closing fragment
07-24 11:06	10m	- / -1	LA3LUA	-6 / -	2	✓ Closing fragment
07-23 19:08	40m	- / 0	OZ1AKN	-18 / -	2	✓ Closing fragment
07-21 08:12	10m	- / -	F5ADE	-14 / -	2	✓ Closing fragment
07-15 15:04	20m	- / -18	EA3GXK	-12 / -	2	Partial capture
07-03 08:03	10m	- / +3	F5PTY	-13 / -	2	✓ Closing fragment
06-29 11:03	10m	- / -7	II2WWA	-14 / -	2	✓ Closing fragment
06-29 10:57	10m	- / -	II7WWA	+6 / -	2	✓ Closing fragment
06-29 10:53	10m	- / -19	IK1MJK	-10 / -	2	✓ Closing fragment
06-26 13:33	10m	- / -	GB198KHZ	-7 / -	3	Partial capture
06-26 09:19	10m	- / -1	DG6TOM	+8 / -	2	Partial capture
06-22 16:58	10m	- / -18	IR2RMAG	-9 / -	2	Partial capture
06-22 16:55	10m	- / +10	IQ2PV	0 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
081700  -3 1592  TK5NJ SP9BCH KO00 (x4)
081930  +4 2029  OK1HEH SP9BCH R+03
081945  -3 1314  SP9BCH OK1HEH RR73
082000  +6 2029  OK1HEH SP9BCH 73
082100  +6 2029  GJ0KYZ SP9BCH R-12 (x2)
082145 +10 2988  SP9BCH HA9OA KN08 (x2)
082315  +3 2029  SP100PKP SP9BCH KO00 (x2)
082400 -23 1689  SP9BCH II6IGTO -01
082415  +4 2029  SP100PKP SP9BCH R-06

80m

UTC    dB Audio  Message
185630 +19 2404  SP9BCH SN100PKP +17
185645 +15 2305  RA4CQW/P SP9BCH R-17 (x4)
185915 +17 1026  SP100PKP SP9BCH KO00
200815  -1 1382  SN100PKP SP9BCH KO00
200845  -2 1382  <3Z100PKP> SP9BCH R-04
200900  -5 1310  SP9BCH RR73; SP5OKO <...> -26
201500 +23  432  SP5DFK/QRP SP9BCH KO00
201515  -4  431  SP9BCH SP5DFK/QRP -15
201530 +21  432  SP5DFK/QRP SP9BCH R-05

20m

UTC    dB Audio  Message
123845 -23 2256  SP9BCH II6WWA -10
150400 -10  766  SP9BCH EA3GXK IM98 (x2)
100415 -17 1217  SP9BCH ON8PIE -07 (x2)

10m

UTC    dB Audio  Message
105700  +6  584  SP9BCH II7WWA RR73 (x2)
110300 -14 1721  SP9BCH II2WWA -07 (x2)
110700  -7  377  SP9BCH E2WWA -11
110930 -13  968  SP9BCH EH7WWA RR73
080200  -4 1744  SP9BCH OP0WWA -15
080230  -6 1744  SP9BCH RR73; CT7AUT <...> -08
080345 -14 1403  SP9BCH F5PTY +03 (x2)
081215 -12 1752  SP9BCH F5ADE +16 (x2)
110630  -6  325  SP9BCH LA3LUA -01 (x2)
110800 -14 1719  SP9BCH F6JON/QRP -23

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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