SV8TBJ — 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: Greece Most frequent locator attributed to this token: JM99

Receiver-side FT8 activity involving SV8TBJ, decoded by SO8OO in southeastern Poland. 179 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 19 UTC dates in the available aggregate history. Observed between 2026-06-26 and 2026-11-06.

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 179 FT8 messages attributed to SV8TBJ as the transmitting token by decoded message structure across 19 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (60%), followed by 40 m (16%) and 160 m (16%). Most decodes (85%) fell within the six-hour window 17:00-23:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

179

Messages attributed

UTC dates decoded

Active 15-min windows

-10 dB

Estimated median S/N

Bands

160m · 28 80m · 13 60m · 107 40m · 29 20m · 2

First attributed message: 2026-06-26
Last attributed message: 2026-11-06 06:01 UTC

Observed FT8 message patterns

Attributed sample: 179 messages
Active dates: 19 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -23 to -1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 52, moderate (-15 to -9 dB) 52, strong (≥ -8 dB) 75.

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 SV8TBJ in decoded directed-looking exchanges:

SV2AEL · Greece TI4LAS · Costa Rica DL5DQZ · Fed. Rep. of Germany S9R · Sao Tome & Principe SV1OZ · Greece

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 SV8TBJ

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: JM99 · 166 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,181 km (approx.)
Last such locator decoded: 2026-11-06 06:01 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	SV8TBJ S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-06 06:01	40m	-12 / -	R0BD/P	- / +6	2	Partial capture
11-05 19:32	80m	- / -	SP5JMA	+8 / -	2	Partial capture
11-05 19:31	80m	- / -	EA1IOK	-12 / -	2	Partial capture
11-05 19:31	80m	- / -	UA4FKT	-4 / -	3	Partial capture
11-05 19:30	80m	-8 / -	UT3UIY/P	- / -	2	Partial capture
11-04 19:01	160m	-20 / -	OD5ZF	- / -	2	Partial capture
11-04 18:58	160m	- / -1	S58T	+2 / -	2	Partial capture
11-04 17:12	40m	-12 / -	DL/N0PNG	- / -	4	Partial capture
11-04 17:06	40m	-6 / -	VI40EUDXF	- / -	3	Partial capture
10-30 21:20	60m	-10 / -	S9R	- / -9	6	✓ Closing fragment
10-29 05:50	60m	- / -	HA3TBL	-16 / -	2	Partial capture
10-29 05:49	60m	-20 / -11	DL5DQZ	+1 / -	4	✓ Closing observed
10-29 05:47	60m	-21 / -	SV1OZ	-11 / +8	4	✓ Closing observed
10-27 21:53	160m	-23 / -	XX9TXN	- / -	3	Partial capture
10-27 21:12	160m	-12 / -	XX9TXN	- / -	2	Partial capture
10-27 21:00	160m	-24 / -	XX9TXN	- / -	8	Partial capture
10-25 21:32	60m	-3 / -	S9R	- / -	59	Partial capture
10-25 21:10	60m	-10 / -	S9R	- / -	35	Partial capture
10-24 06:22	40m	- / -	9A4ZM	-10 / -	2	Partial capture
10-24 06:21	40m	-19 / -	TI4LAS	-18 / -	2	✓ Closing observed
10-23 04:33	80m	-10 / -	R1QF/P	- / -	6	Partial capture
10-11 18:36	60m	-12 / -	9H6C	- / -	3	Partial capture
09-20 18:51	160m	-23 / -	4X1UF	- / -	3	Partial capture
09-20 18:38	160m	- / -	IV3VFR	0 / -	2	Partial capture
09-20 18:38	160m	- / -13	SV2AEL	0 / -	2	✓ Closing fragment
09-20 18:29	160m	-17 / -	RI1FJZ	- / -	2	Partial capture
09-20 17:56	160m	-22 / -	RI1FJZ	- / -	4	Partial capture
09-20 17:47	160m	-23 / -	RI1FJZ	- / -	3	Partial capture
08-31 23:00	40m	-10 / -	RI1FJL	- / -11	5	Partial capture

Recent FT8 messages decoded at SO8OO

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

10m

UTC    dB Audio  Message
081445 -11 2034  SV8TBJ EA4HTI IM69

40m

UTC    dB Audio  Message
185015  -4  989  SV8TBJ YO1BRANCUSI +10
170445  -7 2445  9Y4C SV8TBJ JM99
170615  -4 2445  VI40EUDXF SV8TBJ JM99 (x3)
171215 -18 2307  DL/N0PNG SV8TBJ JM99 (x4)
065815 -16 2194  ON/PD4MB SV8TBJ JM99
060045 -10 2196  UR9QQ SV8TBJ JM99
060115 -12 2196  R0BD/P SV8TBJ JM99
060130 -14  744  SV8TBJ R4LL/6B +08
060145 -12 2196  R0BD/P SV8TBJ R+06
060230  -3 2005  SV8TBJ OE3RWR JN88

80m

UTC    dB Audio  Message
043715 -12 2211  R1QF/P SV8TBJ JM99 (x2)
185400 -13 2224  <SX200H> SV8TBJ JM99
185430 -17 2224  R8XF/P SV8TBJ R+14
184030  -9 2618  SV8TBJ UA9XL/P +06
184100  -2 2617  SV8TBJ RR73; R4FES <...> -08
193015  -9 2089  UT3UIY/P SV8TBJ JM99 (x2)
193130  -5 2090  SV8TBJ UA4FKT LO23
193130 -12  699  SV8TBJ EA1IOK IN62
193200  -2 2090  SV8TBJ UA4FKT LO23
193200 +11  538  SV8TBJ SP5JMA KO02
193230  -4 2090  SV8TBJ UA4FKT LO23
193230  +6  538  SV8TBJ SP5JMA KO02
193230 -13  699  SV8TBJ EA1IOK IN62

160m

UTC    dB Audio  Message
210315 -24 2182  XX9TXN SV8TBJ JM99 (x11)
185815 +10  834  SV8TBJ S58T -01 (x2)
190100 -21 2155  OD5ZF SV8TBJ JM99 (x2)

60m

UTC    dB Audio  Message
054830 -11  239  SV8TBJ SV1OZ RR73
054845 -19 1670  SV1OZ SV8TBJ 73
054930  +1 2274  SV8TBJ DL5DQZ JO61 (x2)
055015 -20 1670  DL5DQZ SV8TBJ RR73
055030 -13 1835  SV8TBJ HA3TBL JN86
055030  +1 2273  SV8TBJ DL5DQZ 73
055100 -19 1835  SV8TBJ HA3TBL JN86
212015 -13 2431  S9R SV8TBJ JM99 (x6)
185730  -5 2599  SV8TBJ <...> +04

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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