SP4NDY — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: KO04

Receiver-side FT8 activity involving SP4NDY, decoded by SO8OO in southeastern Poland. 857 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, across 47 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-19.

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 857 FT8 messages attributed to SP4NDY as the transmitting token by decoded message structure across 47 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (67%), followed by 40 m (26%) and 60 m (6%). Most decodes (97%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (91%); the estimated median was +11.9 dB.

Overview

857

Messages attributed

UTC dates decoded

127

Active 15-min windows

+11.9 dB

Estimated median S/N

Bands

80m · 570 60m · 53 40m · 223 20m · 11

First attributed message: 2026-06-06
Last attributed message: 2026-09-19 21:12 UTC

Observed FT8 message patterns

Attributed sample: 857 messages
Active dates: 47 UTC dates
Estimated median S/N: +11.9 dB
Estimated 10th-90th percentile: -7 to +20 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 24, moderate (-15 to -9 dB) 49, strong (≥ -8 dB) 784.

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 SP4NDY in decoded directed-looking exchanges:

9A3AUH · Croatia ×2 DK8HC · Fed. Rep. of Germany ×2 F1PBZ · France ×2 R2EN · European Russia ×2 TM2WWA · France ×2 DL9KM · Fed. Rep. of Germany ×2 IU5HIU · Italy ×2 R3SE · European Russia ×2 A71DA · Qatar DF7EF · Fed. Rep. of Germany IU2IKT · Italy Z30WWA · North Macedonia

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 SP4NDY

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: KO04 · 461 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 510 km (approx.)
Last such locator decoded: 2026-09-19 21:09 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	SP4NDY S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-19 21:11	60m	+8 / -5	EB3JT	-14 / -1	5	✓ Full exchange observed
09-19 21:09	60m	+10 / -8	J48S	0 / -5	5	✓ Full exchange observed
09-17 22:09	60m	- / -	SM3LDP	-12 / -	2	✓ Closing fragment
09-17 21:56	60m	- / +7	DL4NDK	-6 / -	2	✓ Closing fragment
09-17 21:52	60m	- / -1	SV1EKI	-4 / -	3	✓ Closing fragment
09-17 21:50	60m	- / +3	E74C	-15 / -	3	✓ Closing fragment
09-17 21:48	60m	-18 / +5	DA0O	0 / -	3	✓ Closing observed
09-17 21:46	60m	-17 / 0	EA3EDU	-6 / 0	4	✓ Full exchange observed
09-17 21:43	60m	-16 / -12	SM7HJZ	-1 / -	4	✓ Closing observed
09-17 21:42	60m	-18 / +4	OZ1NIB	-8 / -	2	✓ Closing observed
09-17 21:39	60m	- / +1	IK1BQD	-3 / -	4	✓ Closing fragment
09-17 21:37	60m	- / -3	IU5HIU	-12 / -	3	✓ Closing fragment
09-17 21:36	60m	- / -13	GW3TYI	-15 / -	2	✓ Closing fragment
09-17 21:34	60m	-18 / +8	G4ZFJ	+2 / +10	5	✓ Full exchange observed
09-17 21:33	60m	- / -4	EA1IOK	-3 / -	3	✓ Closing fragment
09-17 21:33	60m	- / 0	LZ2VQ	+6 / -	3	✓ Closing fragment
09-17 21:25	80m	+16 / -	OE3UKW	- / -	2	Partial capture
09-16 21:49	60m	- / -9	DK9CK	-20 / -	2	✓ Closing fragment
09-16 21:45	60m	- / -	DL7GP	0 / -	4	✓ Closing fragment
09-16 21:37	60m	- / -1	IK6DLK	-5 / -	3	✓ Closing fragment
09-16 21:35	60m	- / +2	IU2VUZ	-21 / -	2	Partial capture
09-16 21:23	60m	- / -	DG4BZ	-8 / -	2	✓ Closing fragment
09-16 21:20	60m	- / -1	EB3DBR	-8 / -	2	✓ Closing fragment
09-16 21:15	60m	- / -	DL3RDO	+2 / -	4	✓ Closing fragment
09-16 21:14	60m	- / +4	ON7GB	-7 / -	3	✓ Closing fragment
09-16 21:10	60m	- / -	DH1HF	-16 / -	2	✓ Closing fragment
09-16 21:09	60m	- / -12	PE1NPS	-14 / -	3	✓ Closing fragment
09-16 18:23	60m	+11 / -3	9A6OY	-8 / -4	7	✓ Full exchange observed
09-16 18:23	60m	+13 / -	DL9KM	- / -10	2	✓ Closing fragment
09-16 18:20	60m	+12 / -2	E79D	+13 / +8	5	✓ Full exchange observed
09-16 18:16	60m	+8 / -	ER3UA	+5 / +6	6	✓ Full exchange observed
09-16 18:14	60m	+10 / -	YO3CWC	- / -	2	Partial capture
09-16 18:09	60m	+15 / -2	OE4AHG	-9 / -1	2	Partial capture
09-16 18:09	60m	+9 / -	SM0EJR	-8 / -	5	✓ Full exchange observed
09-16 18:08	60m	+13 / -	EA3HMM	- / -12	2	✓ Closing fragment
09-16 18:06	60m	+9 / -	OZ/DF4ZL	- / -4	2	Partial capture
09-16 17:58	60m	+16 / +3	DK1XAM	-6 / +2	8	✓ Full exchange observed
09-16 17:58	60m	+16 / +2	DL5DQZ	+3 / -	6	✓ Full exchange observed
09-16 17:56	60m	+14 / +6	9A4ZM	+7 / -	6	✓ Full exchange observed
09-16 17:56	60m	+16 / -9	PH2M	-5 / +2	7	✓ Full exchange observed
09-16 17:54	60m	+15 / -	G0AZH	-12 / -6	7	✓ Closing observed
09-16 17:53	60m	+15 / -	SA6DST	-16 / +5	6	✓ Closing observed
09-16 17:53	60m	- / -	DG0OAT	+1 / -	4	Partial capture
09-16 17:53	60m	+16 / -	DK7ZT	-18 / -2	6	✓ Full exchange observed
09-16 17:53	60m	+13 / -	OK1BN	+8 / -	5	✓ Full exchange observed
09-16 08:29	10m	- / +2	IU2IKT	+2 / -	2	✓ Closing fragment
09-15 21:57	80m	+10 / -	RN6HK	-2 / -5	4	✓ Closing observed
09-15 21:56	80m	+15 / -3	HB9EUP	-3 / 0	4	✓ Full exchange observed
09-15 21:49	80m	+13 / -	<...>	- / -	7	Partial capture
09-14 01:37	80m	+6 / -	K4XP	- / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

60m

UTC    dB Audio  Message
215345  -3 2321  SP4NDY SV1EKI 73
215600  -3 1162  SP4NDY DL4NDK +07 (x2)
220915 -11  568  SP4NDY SM3LDP +12 (x2)
210945  +9  869  J48S SP4NDY KO04
211000  +0  582  SP4NDY J48S -08
211015 +10  869  J48S SP4NDY R-05
211030  +0  582  SP4NDY J48S RR73
211045 +10  869  J48S SP4NDY 73
211130 -14  868  SP4NDY EB3JT JN01
211145  +9  869  EB3JT SP4NDY -01
211200 -14  869  SP4NDY EB3JT R-05
211215  +8  869  EB3JT SP4NDY RR73
211230 -14  869  SP4NDY EB3JT 73

80m

UTC    dB Audio  Message
215315 +21 2871  <...> SP4NDY KO04
215445  +7 1304  SQ100PKP SP4NDY R+01
215500  +2  744  SP4NDY RR73; EA1BCK <...> -14
215600 +16 1304  HB9EUP SP4NDY KO04
215615  -3 2346  SP4NDY HB9EUP -03
215630 +15 1304  HB9EUP SP4NDY R+00 (x2)
215715  -3 1305  SP4NDY RN6HK LN14
215730 +11 1304  RN6HK SP4NDY -05 (x2)
215815  +0 1305  SP4NDY RN6HK 73
220015  +9 1304  YT5DL SP4NDY KO04
220045 +14 2518  RI1FJZ SP4NDY KO04
212515 +18 2718  OE3UKW SP4NDY KO04 (x2)

10m

UTC    dB Audio  Message
205345  -7 2426  SP4NDY DF7EF JO30
205415  -7 2488  SP4NDY DN9OPA JN38
205415  -4 2427  SP4NDY DF7EF JO30
205445  -9 2488  SP4NDY DN9OPA JN38
205445  -8 2427  SP4NDY DF7EF R-04
205515 -10 2488  SP4NDY DN9OPA JN38
205515  -9 2428  SP4NDY DF7EF 73
205545  -6 2488  SP4NDY DN9OPA JN38 (x6)
082915  +1 2527  SP4NDY IU2IKT +02 (x2)

40m

UTC    dB Audio  Message
221400  -1 2533  SP4NDY F1PBZ RR73
221430 +11 2981  SP4NDY F4BYA JN19 (x3)
221800  -7 2921  SP4NDY PC2J JO22
221830  -5 2334  SP4NDY 2E0MRK IO91 (x3)
213630 -17 2426  SP4NDY F6FHZ R-08
213700  +0 2170  SP4NDY IK2RZQ JN45 (x3)
213800 -16 2426  SP4NDY F6FHZ JN18 (x2)
014715 -22 1969  SP4NDY UN7PPV -16

20m

UTC    dB Audio  Message
152700 -20 1789  SP4NDY GB2WWA +00 (x2)
115530 -12  718  KA1MXL SP4NDY KO04
120400 -16 2325  R0ADA SP4NDY R-01 (x2)
120615 -15 2487  SP4NDY 9A3AUH JN75
120700 -14 2325  9A3AUH SP4NDY RR73
165215  -7 2996  <...> SP4NDY KO04 (x2)
215215 -19 2184  SP4NDY YV5WL -17
215815 -10  571  SP4NDY KB1FJC -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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