SP3XR — 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: JO72

Receiver-side FT8 activity involving SP3XR, decoded by SO8OO in southeastern Poland. 551 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 31 UTC dates in the available aggregate history. Observed between 2026-07-02 and 2026-11-05.

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 551 FT8 messages attributed to SP3XR as the transmitting token by decoded message structure across 31 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (57%), followed by 20 m (29%) and 40 m (13%). Several six-hour UTC windows tied for the largest share (48%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (76%); the estimated median was -2 dB.

Overview

551

Messages attributed

UTC dates decoded

Active 15-min windows

-2 dB

Estimated median S/N

Bands

80m · 316 40m · 73 20m · 162

First attributed message: 2026-07-02
Last attributed message: 2026-11-05 02:02 UTC

Observed FT8 message patterns

Attributed sample: 551 messages
Active dates: 31 UTC dates
Estimated median S/N: -2 dB
Estimated 10th-90th percentile: -14 to +8 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 43, moderate (-15 to -9 dB) 88, strong (≥ -8 dB) 420.

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 SP3XR in decoded directed-looking exchanges:

PI4DX · Netherlands ×3 5B4AMX · Cyprus ×2 EC3A · Spain ×2 G8KHF · England ×2 SV5BYP · Dodecanese ×2 4L1MA · Georgia A61QQ · United Arab Emirates F4HSB · France LA2PIA · Norway OE3AAS · Austria 3A2LF · Monaco 5B4AMM · Cyprus

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 SP3XR

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: JO72 · 341 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 552 km (approx.)
Last such locator decoded: 2026-11-05 01:59 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	SP3XR S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-05 01:57	80m	+10 / -	EA4D	- / -17	11	Partial capture
11-05 01:50	80m	+9 / -	OD5KU	- / -	14	Partial capture
11-05 01:47	80m	+12 / -1	CT2KNA	-21 / -19	6	✓ Full exchange observed
11-05 01:46	80m	+8 / -4	9A5E	+6 / +9	3	✓ Full exchange observed
11-05 01:43	80m	- / -	9A3AUH	+9 / -	4	Partial capture
11-05 01:43	80m	+9 / -9	SV5BYP	-15 / -11	7	✓ Full exchange observed
11-05 01:40	80m	0 / -15	VE3DZ	-9 / -14	8	✓ Full exchange observed
11-05 01:38	80m	+10 / -10	4L1FL	-1 / -2	5	✓ Full exchange observed
11-05 01:35	40m	- / -22	WT3Q	-8 / -	3	✓ Closing fragment
11-05 01:21	40m	- / -16	W6NWS	-4 / -	4	✓ Closing fragment
11-05 01:12	40m	- / -9	EC3A	-16 / -	2	✓ Closing fragment
11-04 03:42	80m	+8 / -	W3UA	- / -	4	Partial capture
11-04 03:38	80m	+3 / -6	MI0NWA	-4 / -2	5	✓ Full exchange observed
11-04 03:30	80m	+8 / -2	YL2EA	+5 / -11	5	✓ Full exchange observed
11-04 03:28	80m	+12 / -	OH2MDN	+13 / 0	6	✓ Full exchange observed
11-04 03:26	80m	+13 / -6	SQ4PKO	-3 / -	4	✓ Closing observed
11-04 03:24	80m	- / -	9A2WA	-10 / -	2	Partial capture
11-04 03:24	80m	+10 / +6	LZ1GC	+8 / +3	6	✓ Full exchange observed
11-04 03:21	80m	+18 / +4	F5MXH	-4 / -6	6	✓ Full exchange observed
11-04 03:19	80m	+13 / -17	S55X	-3 / -	3	✓ Closing observed
11-04 03:00	40m	- / -	DL3MIB	+5 / -	7	Partial capture
11-04 02:59	40m	- / -9	F4AHJ	-10 / -	2	✓ Closing fragment
11-04 02:40	40m	- / -2	UA4FKT	+10 / -	5	Partial capture
11-04 02:39	40m	- / -5	EA3NE	-10 / -	2	Partial capture
11-04 02:35	40m	- / +4	3A2LF	-11 / -	2	✓ Closing fragment
11-03 00:56	80m	+3 / -	MD0CCE	- / -3	6	✓ Closing fragment
11-03 00:54	80m	+2 / -	F5PBG	- / -	2	Partial capture
11-03 00:52	80m	-4 / -3	SP1EG	+3 / +5	5	✓ Full exchange observed
11-03 00:51	80m	-1 / -	GI4FUE	-2 / +3	4	✓ Closing observed
11-03 00:47	80m	+6 / -	PA3FPQ	+8 / +7	6	✓ Full exchange observed
11-03 00:42	80m	+4 / +9	DL3MIB	+14 / -	8	✓ Full exchange observed
11-03 00:42	80m	+4 / -	SP1EG	-3 / +6	9	Partial capture
11-03 00:39	80m	+4 / -	LA3VEA	-14 / -9	6	✓ Closing observed
11-03 00:33	80m	0 / -23	OD5ZZ	-24 / -20	5	Partial capture
11-03 00:29	40m	- / -9	IW9FRA	-13 / -	2	✓ Closing fragment
11-03 00:28	40m	- / -17	EA1AA	-6 / -	6	✓ Closing fragment
11-03 00:17	40m	- / -8	TC2TR	-7 / -	3	✓ Closing fragment
11-03 00:16	40m	- / -17	EA1R	-22 / -	2	✓ Closing fragment
11-03 00:10	40m	- / -7	EA5FD	-11 / -	6	✓ Closing fragment
11-03 00:07	40m	- / -1	SV5BYP	0 / -	2	✓ Closing fragment
11-03 00:02	40m	- / -23	9K2YM	-14 / -	2	✓ Closing fragment
11-01 02:10	80m	+2 / -7	SP8HDC	-1 / -	4	✓ Closing observed
11-01 02:08	80m	-2 / -7	TC3ATA	-8 / -4	7	✓ Full exchange observed
11-01 02:06	80m	-3 / -	Z32ID	- / -	3	Partial capture
11-01 01:59	80m	+4 / -	IU2JMZ	- / -	4	Partial capture
11-01 01:53	80m	+6 / -	OE8RPK	-8 / -8	10	✓ Closing observed
11-01 01:51	80m	- / -5	OH6RE	0 / -	2	✓ Closing fragment
11-01 01:48	80m	-5 / +1	OK1JMB	-6 / +6	5	✓ Full exchange observed
11-01 01:46	80m	-3 / -	YU6DX	+8 / +2	4	✓ Full exchange observed
11-01 01:42	80m	-5 / -	Z32ID	- / -	5	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
015545 +18  401  OD5KU SP3XR JO72 (x4)
015745 +12  401  EA4D SP3XR JO72 (x11)

40m

UTC    dB Audio  Message
030100  +3 1070  SP3XR DL3MIB JN57 (x5)
011215 -14 1761  SP3XR EC3A -09 (x2)
011530 -10  403  SP3XR 9A5CW -14
012100  -4  575  SP3XR W6NWS -16 (x4)
013515  -8  520  SP3XR WT3Q -22 (x3)

60m

UTC    dB Audio  Message
194600  -5 1064  SP3XR 9A4ZM JN86 (x2)

20m

UTC    dB Audio  Message
165230 -18 1859  LA2PIA SP3XR 73
165345 -13 1329  EK1KE SP3XR JO72 (x5)
170345  -3 1067  SP3XR PI4DX -18 (x2)
171545 -14 2177  A92AA SP3XR JO72 (x3)
141815  -7 1576  SP3XR R3KCW +01 (x2)
143215 -12 1368  SP3XR F4HSB -09 (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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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