IS0AFM — 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: Sardinia Most frequent locator attributed to this token: JM49

Receiver-side FT8 activity involving IS0AFM, decoded by SO8OO in southeastern Poland. 1,927 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 65 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-19.

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 1,927 FT8 messages attributed to IS0AFM as the transmitting token by decoded message structure across 65 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (40%), followed by 60 m (22%) and 20 m (20%). Most decodes (80%) fell within the six-hour window 01:00-07:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

1,927

Messages attributed

UTC dates decoded

219

Active 15-min windows

-10 dB

Estimated median S/N

Bands

80m · 253 60m · 426 40m · 778 20m · 385 10m · 85

First attributed message: 2026-06-07
Last attributed message: 2026-10-19 05:15 UTC

Observed FT8 message patterns

Attributed sample: 1,927 messages
Active dates: 65 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -19.4 to 0 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 464, moderate (-15 to -9 dB) 623, strong (≥ -8 dB) 840.

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 IS0AFM in decoded directed-looking exchanges:

CR7BRV · Portugal ×2 TA2EE · Asiatic Turkey ×2 4X5CG · Israel ×2 KA9FOX · United States ×2 SV1EKI · Greece ×2 EA5HM · Spain ×2 F5SIB · France ×2 G0BLB · England ×2 G8OO · England ×2 LZ2VQ · Bulgaria ×2 4X4DK · Israel AD9GE · United States

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 IS0AFM

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: JM49 · 1,137 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,535 km (approx.)
Last such locator decoded: 2026-10-19 05:05 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	IS0AFM S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-19 05:14	80m	- / -	DK9RC	-7 / -	3	Partial capture
10-19 05:14	80m	- / -	DO1FZL	+3 / -	3	Partial capture
10-19 05:14	80m	-10 / +3	DO1MER	-6 / -8	5	✓ Full exchange observed
10-19 05:14	80m	- / -10	GM6URC	-11 / -	2	Partial capture
10-19 05:14	80m	- / -	YO4CPO	+2 / -	2	Partial capture
10-19 05:13	80m	- / -10	EC3A	-16 / -	2	Partial capture
10-19 05:13	80m	-16 / -	IK0XFD	+2 / -5	3	✓ Closing observed
10-19 05:12	80m	-14 / -13	DO5HOK	+1 / 0	5	Partial capture
10-19 05:11	80m	- / -2	F1PBZ	-2 / -	3	Partial capture
10-19 05:07	80m	- / -	SQ5HG	+16 / -	3	Partial capture
10-19 05:05	80m	-5 / -	PI4S/J	- / -13	3	Partial capture
10-19 04:56	60m	- / -	DM2GG	-6 / -	6	Partial capture
10-19 04:55	60m	-2 / -12	EB1LA	-9 / 0	6	✓ Full exchange observed
10-19 04:52	60m	-2 / -3	SV1EKI	-8 / -1	5	✓ Full exchange observed
10-19 04:51	60m	- / -	EB1LA	-7 / -	3	Partial capture
10-19 04:47	60m	-6 / -12	LZ2HN	+6 / -6	5	✓ Full exchange observed
10-19 04:46	60m	- / -	EB1LA	-4 / -	4	Partial capture
10-19 04:43	60m	-5 / -	SP2EWQ	-12 / -1	4	✓ Closing observed
10-19 04:41	60m	-2 / -11	PA3GDL	+5 / -2	5	✓ Full exchange observed
10-19 04:39	60m	-4 / -	K4YJ	- / -15	2	✓ Closing fragment
10-19 04:39	60m	- / -	EB1LA	-4 / -	4	Partial capture
10-19 04:36	60m	-6 / -	KA9FOX	- / -13	2	✓ Closing fragment
10-19 04:31	60m	-2 / -8	DL3HBF	-1 / +1	9	✓ Full exchange observed
10-19 04:31	60m	-6 / -	W8CO	-19 / -6	3	✓ Closing observed
10-19 04:25	60m	-7 / +1	LZ1GC	+3 / +3	7	✓ Full exchange observed
10-19 04:25	60m	-8 / -	DK6AH	-16 / -15	8	✓ Closing observed
10-19 04:25	60m	-5 / -14	SV8SXV	-8 / -8	4	✓ Full exchange observed
10-19 04:22	60m	- / -	EB1LA	-6 / -	2	Partial capture
10-19 04:22	60m	-6 / -12	SP5EXA	-2 / +4	5	✓ Full exchange observed
10-15 03:09	60m	- / -	IU3VGK	-19 / -	2	Partial capture
10-15 03:09	60m	- / -	SM7HWD	-20 / -	4	Partial capture
10-15 03:03	60m	-20 / -	HF5A	- / -7	3	✓ Closing fragment
10-15 03:02	60m	-15 / -12	F6FHZ	-23 / -7	4	✓ Full exchange observed
10-15 02:57	60m	-22 / +6	OE4AAC	+4 / -	6	✓ Closing observed
10-15 02:57	60m	-19 / -1	ON8WR	-11 / -7	4	✓ Full exchange observed
10-15 02:52	60m	-16 / -	EA5HM	-13 / -1	4	✓ Closing observed
10-15 02:52	60m	-12 / -8	YO4BEW	-13 / -3	7	✓ Full exchange observed
10-15 02:51	60m	-18 / -9	OH1LA	-13 / -10	5	✓ Full exchange observed
10-15 02:45	60m	-16 / -	G0AZH	-10 / -3	12	Partial capture
10-15 02:43	60m	-18 / 0	OH2GQC	-17 / -5	5	✓ Full exchange observed
10-15 02:42	60m	- / -	YO4BEW	-8 / -	8	Partial capture
10-15 02:42	60m	-20 / -	EA5HM	- / -4	2	✓ Closing fragment
10-15 02:41	60m	-17 / -9	EC3A	-18 / 0	3	✓ Full exchange observed
10-15 02:33	80m	-10 / -4	F5OYA/P	-15 / -2	4	✓ Full exchange observed
10-15 02:32	80m	-13 / -	F5UOU	-8 / -7	3	✓ Closing observed
10-15 02:29	80m	-10 / -	F5PBG	-10 / -7	3	✓ Closing observed
10-12 03:52	40m	- / -	SV5BYP	0 / -	4	Partial capture
10-12 03:48	40m	-6 / -	R8CKV	- / -7	2	✓ Closing fragment
10-12 03:47	40m	- / -	SV5BYP	-4 / -	2	Partial capture
10-11 04:29	40m	- / -	SV5BYP	-7 / -	16	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
051415  +6  809  IS0AFM DO5HOK R-13
051415  -4 1971  IS0AFM DO1MER JO43
051415  +4 2263  IS0AFM DO1FZL JO50
051415  -7  749  IS0AFM DK9RC JN58
051430  -9 2263  DO1MER IS0AFM -08
051445  +3 1855  IS0AFM YO4CPO KN44
051445 -14 1693  IS0AFM GM6URC -10
051445  -4 1971  IS0AFM DO1MER R+03
051445  +2 2263  IS0AFM DO1FZL JO50
051500 -11 2263  DO1MER IS0AFM RR73
051515 -14 1911  IS0AFM EC3A -09
051515  -9 1971  IS0AFM DO1MER 73
051515  +3 2263  IS0AFM DO1FZL JO50
051515  -8  749  IS0AFM DK9RC JN58 (x2)

60m

UTC    dB Audio  Message
045400  -8 2588  CQ IS0AFM JM49 (x2)
045515  -9  788  IS0AFM EB1LA IN73
045530  -5 2587  CQ IS0AFM JM49
045545 -11  788  IS0AFM EB1LA IN73
045600  -2 2588  EB1LA IS0AFM +00
045615  -7  788  IS0AFM EB1LA R-12
045630  -1 2588  EB1LA IS0AFM RR73
045645  -8  788  IS0AFM EB1LA 73
045645  -5 1548  IS0AFM DM2GG JO51 (x6)

40m

UTC    dB Audio  Message
034630  -9 1396  CQ DX IS0AFM JM49
034715  -8  796  IS0AFM SV5BYP KM46
034730  -8 1396  CQ DX IS0AFM JM49
034745  +0  796  IS0AFM SV5BYP KM46
034800  -7 1396  R8CKV IS0AFM R-07 (x2)
035200  -2 1396  CQ DX IS0AFM JM49
035215  -1  856  IS0AFM SV5BYP KM46
035230  -7 1396  CQ DX IS0AFM JM49
035245  +0  796  IS0AFM SV5BYP KM46
035300  -3 1396  CQ DX IS0AFM JM49
035315  -1  796  IS0AFM SV5BYP KM46
035330  -1 1396  CQ DX IS0AFM JM49
035345  +0  736  IS0AFM SV5BYP KM46
035400  +0 1396  CQ DX IS0AFM JM49

20m

UTC    dB Audio  Message
070545  +2 2233  IS0AFM YO5PHL KN16
070600 -16 2233  CQ DX IS0AFM JM49
070615  -3 2233  IS0AFM YO5PHL KN16
070630 -19 2234  CQ DX IS0AFM JM49 (x3)
070815  -7 2232  IS0AFM PD0PWH JO21
070830 -24 2233  VK3JMA IS0AFM JM49
071100 -20 2233  CQ DX IS0AFM JM49
071115  -3 2235  IS0AFM OE8PIT JN66
071130 -17 2234  CQ DX IS0AFM JM49
071145  -3 2235  IS0AFM OE8PIT JN66
071200 -17 2234  CQ DX IS0AFM JM49
071215  -4 2235  IS0AFM OE8PIT JN66 (x2)

10m

UTC    dB Audio  Message
142930 -13 2514  IS0AFM PH9OY JO22
144245 -12 2513  IS0AFM DJ7XY JO31 (x2)
144615  -4 2512  IS0AFM DL8DCM JO41 (x2)
134215  -6 2417  IS0AFM F4CUO JN03 (x3)
143245 -12 2485  IS0AFM DN9OPA JN38 (x2)
145115 -11  482  IS0AFM DN9LUZ JO30 (x4)
145645 -22 1774  IS0AFM DO1ANB JO31

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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