SP1ZX — 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: Poland Most frequent locator attributed to this token: JO74

Receiver-side FT8 activity involving SP1ZX, decoded by SO8OO in southeastern Poland. 122 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, across 6 UTC dates in the available aggregate history. Observed between 2026-06-16 and 2026-09-30.

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 122 FT8 messages attributed to SP1ZX as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (43%), followed by 160 m (37%) and 60 m (16%). Several six-hour UTC windows tied for the largest share (76%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

122

Messages attributed

UTC dates decoded

Active 15-min windows

-10 dB

Estimated median S/N

Bands

160m · 45 80m · 6 60m · 19 40m · 52

First attributed message: 2026-06-16
Last attributed message: 2026-09-30 21:02 UTC

Observed FT8 message patterns

Attributed sample: 122 messages
Active dates: 6 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -19 to 0 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 30, moderate (-15 to -9 dB) 38, strong (≥ -8 dB) 54.

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 SP1ZX in decoded directed-looking exchanges:

DL7ARV · Fed. Rep. of Germany ×2 9A4ZM · Croatia DD4U · Fed. Rep. of Germany DF0US · Fed. Rep. of Germany DK2DB · Fed. Rep. of Germany EA5RR · Spain G4IRN · England GM0OPS · Scotland HA5AO · Hungary IU3RRX · Italy PA0O · Netherlands S59YL · Slovenia

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 SP1ZX

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: JO74 · 65 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 686 km (approx.)
Last such locator decoded: 2026-09-30 21:01 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	SP1ZX S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-30 21:01	80m	+6 / -	PJ2/W4IPC	- / -22	2	Partial capture
09-30 21:00	80m	+9 / -2	EI9FVB	-2 / -4	5	✓ Full exchange observed
09-30 20:57	160m	-18 / -6	S59YL	+2 / -	3	✓ Closing observed
09-30 20:53	160m	-9 / -	EA4HPY	- / -	2	Partial capture
09-30 20:50	160m	-14 / -	IU3RRX	+1 / -	3	✓ Closing observed
09-30 20:45	160m	-15 / -	LA9JKA	- / -	2	Partial capture
09-30 20:43	160m	-10 / -	DF0US	-12 / -3	4	✓ Closing observed
09-30 20:41	160m	-17 / -14	G4IRN	+4 / +2	4	✓ Full exchange observed
09-30 20:39	160m	-13 / -	R9CS/P	- / -	2	Partial capture
09-30 20:32	160m	-7 / -	F4GGS	- / -	3	Partial capture
09-30 20:28	160m	-14 / -4	SP4LIN	0 / -2	4	✓ Full exchange observed
09-30 20:27	160m	-11 / -8	DK2DB	-3 / -10	4	✓ Full exchange observed
09-30 20:23	160m	-9 / +5	PA0O	+8 / +1	4	Partial capture
09-30 20:20	160m	-9 / -10	DD4U	-22 / -	5	✓ Closing observed
09-30 20:17	160m	-18 / -9	9A4ZM	+5 / -11	5	✓ Full exchange observed
09-30 20:16	160m	-18 / -	EA5RR	-14 / -12	4	✓ Closing observed
09-30 20:15	160m	-15 / -14	HA5AO	+12 / -8	5	✓ Full exchange observed
09-30 20:14	160m	-15 / -	GM0OPS	-5 / -	2	✓ Closing observed
09-30 13:14	40m	-18 / -6	YL3AKH	-6 / -	5	✓ Closing observed
09-30 13:13	40m	-22 / -9	EW2GI	-9 / -	5	✓ Closing observed
09-30 13:12	40m	-20 / -	OK2BXD/P	-12 / -	4	✓ Closing observed
09-27 12:30	40m	-5 / -	PE50SCOUT	- / -	4	Partial capture
09-27 12:27	40m	-16 / -4	DD3ZZ	-16 / -6	6	Partial capture
09-27 12:19	40m	-19 / -	3Z100PKP	- / -	3	Partial capture
09-27 12:14	40m	-14 / -	DC9GT	- / -3	3	✓ Closing fragment
09-27 12:07	40m	-20 / -	DK1REM	- / -18	5	✓ Closing fragment
08-19 22:20	40m	- / -	EA5XA	-9 / -	5	Partial capture
08-19 22:12	40m	-4 / -	<...>	- / -15	11	Partial capture
08-19 22:10	40m	-4 / -	3B9/SQ9UM	- / -	2	Partial capture
08-19 22:08	40m	-10 / -	<...>	- / -	2	Partial capture
08-19 21:59	40m	-16 / -	TF/DO1BBM	- / -8	2	Partial capture
08-19 21:54	40m	-7 / -	R2EA/M	- / -15	2	Partial capture
08-19 21:11	60m	+2 / 0	DR800WE	+6 / 0	3	Partial capture
08-19 21:10	60m	+2 / -	OH6NIO	-6 / -8	5	✓ Full exchange observed
08-19 21:09	60m	0 / +6	DL7ARV	+8 / -3	5	✓ Full exchange observed
08-19 21:07	60m	+2 / +7	OJ0JR	+3 / -3	5	✓ Full exchange observed
08-19 21:06	60m	-7 / -4	EA1SAL	-16 / -4	5	✓ Full exchange observed
08-19 21:04	60m	-6 / -1	F4HIK	-14 / -4	5	✓ Full exchange observed
08-19 21:03	60m	-3 / +3	DL6ZXG	+2 / +3	5	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
212645  -5 2108  UA6Q/M SP1ZX R-13
210015  +9 1197  EI9FVB SP1ZX JO74
210030  +0  552  SP1ZX EI9FVB -02
210045 +11 1198  EI9FVB SP1ZX R-04
210100  -3  552  SP1ZX EI9FVB RR73
210115  +6 1197  EI9FVB SP1ZX 73
210145  +8 1197  PJ2/W4IPC SP1ZX JO74 (x2)

160m

UTC    dB Audio  Message
204345  -4 1199  DF0US SP1ZX R-03
204400 -12 1046  SP1ZX DF0US RR73
204415  -7 1199  DF0US SP1ZX 73
204500 -15 1199  LA9JKA SP1ZX JO74 (x2)
204800 -13 1199  CQ SP1ZX JO74 (x2)
205000 -14 1199  IU3RRX SP1ZX JO74
205145  +1 1199  SP1ZX IU3RRX RR73
205200 -13 1199  IU3RRX SP1ZX 73
205315  -8 1199  EA4HPY SP1ZX JO74 (x2)
205730 -18 1199  S59YL SP1ZX JO74
205745  +1 2117  SP1ZX S59YL -06 (x2)

40m

UTC    dB Audio  Message
131200 -19 1327  OK2BXD/P SP1ZX JO74
131245 -10 1370  SP1ZX OK2BXD/P +15 (x2)
131315 -11 1244  SP1ZX EW2GI KO43
131330 -20 1327  OK2BXD/P SP1ZX 73
131345 -12 1082  SP1ZX UA3SCU -05
131345  -9 1244  SP1ZX EW2GI KO43
131415  -4 1327  SP1ZX YL3AKH KO16
131415  -7 1244  SP1ZX EW2GI R-09
131430 -22 1327  EW2GI SP1ZX RR73
131445  -6 1327  SP1ZX YL3AKH KO16
131445 -10 1244  SP1ZX EW2GI 73
131515  -6 1327  SP1ZX YL3AKH R-06
131530 -18 1327  YL3AKH SP1ZX RR73
131545  -7 1327  SP1ZX YL3AKH 73

60m

UTC    dB Audio  Message
210845  +4  702  OJ0JR SP1ZX 73
210900  +9  562  SP1ZX DL7ARV JO62
210915  +0  562  DL7ARV SP1ZX -03
210930  +7  562  SP1ZX DL7ARV R+06
210945  +0  562  DL7ARV SP1ZX RR73
211000  -8 2586  SP1ZX OH6NIO KP12
211000  +9  562  SP1ZX DL7ARV 73
211015  +1 2587  OH6NIO SP1ZX -08
211030  -5 2585  SP1ZX OH6NIO R+17
211045  +3 2587  OH6NIO SP1ZX RR73
211100  -5 2585  SP1ZX OH6NIO 73
211115  +3 2688  DR800WE SP1ZX JO74
211130  +6 2688  SP1ZX DR800WE +00
211145  +0 2688  DR800WE SP1ZX R+00
195445  -8 1978  LA1HW SP1ZX JO74

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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