AO5FSB — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Spain Most frequent locator attributed to this token: IM98

Receiver-side FT8 activity involving AO5FSB, decoded by SO8OO in southeastern Poland. 2,328 FT8 messages attributed to this token as transmitter, on 60m, 40m, 20m, across 8 UTC dates in the available aggregate history. Observed between 2026-08-23 and 2026-08-30.

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 2,328 FT8 messages attributed to AO5FSB as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (67%), followed by 40 m (24%) and 60 m (10%). Most decodes (61%) fell within the six-hour window 16:00-22:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7 dB.

Overview

2,328
Messages attributed
8
UTC dates decoded
168
Active 15-min windows
-7 dB
Estimated median S/N

Bands

60m · 224 40m · 550 20m · 1,554
First attributed message: 2026-08-23
Last attributed message: 2026-08-30 13:57 UTC

Observed FT8 message patterns

Attributed sample
2,328 messages
Active dates
8 UTC dates
Estimated median S/N
-7 dB
Estimated 10th-90th percentile
-17 to +7 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 363, moderate (-15 to -9 dB) 669, strong (≥ -8 dB) 1,296.

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 AO5FSB in decoded directed-looking exchanges:

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 AO5FSB

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
IM98 · 1,086 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
2,203 km (approx.)
Last such locator decoded
2026-08-30 13:57 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 UTCBandAO5FSB S/NCounterpartCounterpart S/NMsgsCapture
08-30 17:50 40m - / -25 LY3I -5 / - 4 Partial capture
08-30 17:24 40m - / +1 ON7AN -6 / - 3 ✓ Closing fragment
08-30 16:45 20m - / - PD4AH -12 / - 3 Partial capture
08-30 13:24 20m -8 / -20 2E1HAT +1 / -15 16 ✓ Full exchange observed
08-30 13:18 20m - / - 2E1HAT 0 / - 2 Partial capture
08-30 13:10 20m -10 / - 2E1HAT +2 / -13 9 Partial capture
08-30 13:01 20m - / -10 DB2ZR -4 / - 2 ✓ Closing fragment
08-30 13:00 20m - / - IW5ALZ -12 / - 2 Partial capture
08-30 12:57 20m -15 / - PD4AH -8 / -14 3 Partial capture
08-30 12:55 20m - / -5 ON7GE -5 / - 3 ✓ Closing fragment
08-30 12:48 20m -13 / - F8EFJ +3 / -9 7 Partial capture
08-30 12:44 20m - / - PA5WJB -4 / - 4 ✓ Closing fragment
08-30 12:31 20m -16 / -11 F8STC -11 / -14 3 ✓ Full exchange observed
08-30 12:22 20m - / - M8FQT -4 / - 6 Partial capture
08-30 12:16 20m - / - DL7FAI -12 / - 6 Partial capture
08-30 12:08 20m -1 / - ON9MD - / -7 7 Partial capture
08-30 12:06 20m - / - R7OV 0 / - 3 Partial capture
08-30 12:01 20m +2 / -7 DA1MHH 0 / -5 3 ✓ Full exchange observed
08-30 11:57 20m +2 / - W6NWS -13 / - 2 ✓ Closing observed
08-30 11:55 20m - / +8 PC4W -5 / - 3 ✓ Closing fragment
08-30 11:53 20m +5 / -11 DG5KAC -5 / -9 2 Partial capture
08-30 11:44 20m - / - IZ0AIO -4 / - 3 Partial capture
08-30 11:43 20m +3 / -5 M0HSG -2 / - 3 ✓ Closing observed
08-30 11:38 20m - / - IW5ALZ -2 / - 4 Partial capture
08-30 11:38 20m +2 / - PA2AMJ -4 / - 2 ✓ Closing observed
08-30 11:32 20m - / - IK4LZH +12 / - 3 ✓ Closing fragment
08-30 11:18 20m - / -3 PA3CDX 0 / - 3 ✓ Closing fragment
08-30 11:14 20m - / -6 OH7FAE +2 / - 4 ✓ Closing fragment
08-30 11:07 20m - / - IZ0AIO -7 / - 9 Partial capture
08-30 11:07 20m - / - PE1LYU +6 / - 3 Partial capture
08-30 11:00 20m - / -1 ON7SX -6 / - 5 ✓ Closing fragment
08-30 10:56 20m - / - IK4LZH +19 / - 3 Partial capture
08-30 10:55 20m - / - PD4PMS +8 / - 5 Partial capture
08-29 21:26 20m - / - JA2ICB -4 / - 2 Partial capture
08-29 21:22 20m - / -23 JF1UVJ -16 / - 4 Partial capture
08-29 21:14 20m -4 / - JA0DAI - / -6 2 ✓ Closing fragment
08-29 21:12 20m 0 / - IK2FBA - / 0 2 ✓ Closing fragment
08-29 21:11 20m +2 / - JE1XUL - / -13 2 ✓ Closing fragment
08-29 21:08 20m +2 / - DK8BZ - / -6 2 ✓ Closing fragment
08-29 21:06 20m -2 / - ZL1VAH - / -14 2 ✓ Closing fragment
08-29 21:04 20m +4 / - F1AWL - / -11 2 ✓ Closing fragment
08-29 21:03 20m +4 / - SM7TZK - / -4 2 ✓ Closing fragment
08-29 21:00 20m -11 / - JG1GEO - / -12 2 ✓ Closing fragment
08-29 20:58 20m -10 / - R7ZY - / -14 2 ✓ Closing fragment
08-29 20:55 20m -16 / - JH0EHQ - / -13 3 ✓ Closing fragment
08-29 20:53 20m -13 / - M8KKH - / -11 2 ✓ Closing fragment
08-29 20:47 20m -23 / - 4I1DWE - / -15 5 Partial capture
08-29 20:44 20m -23 / - IZ5YBN - / -13 2 ✓ Closing fragment
08-29 20:42 20m -12 / - F4ACR - / 0 2 ✓ Closing fragment
08-29 20:40 20m -12 / - SP5ES - / -9 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
201130 -18 1758  AO5FSB M0CKX IO93 (x6)
172445  -5 1169  AO5FSB ON7AN JO20 (x3)
173515 -10 1237  AO5FSB F5RMK RR73
173800  -6 1788  AO5FSB DL8TT JO30
175000  -1  844  AO5FSB LY3I -25 (x4)
20m 
UTC    dB Audio  Message
133045  -1  501  AO5FSB 2E1HAT JO01 (x4)
134900 -12  520  CQ AO5FSB IM98
134945 -13 1157  AO5FSB R9OFU NO14
135100  -9  520  CQ AO5FSB IM98 (x2)
135200  -7  519  YL2TM AO5FSB R-14
135500 -12  520  CQ AO5FSB IM98 (x2)
140315  -4  519  AO5FSB M8HHF IO91
164545 -17 1174  AO5FSB PD4AH JO33 (x3)
60m 
UTC    dB Audio  Message
221645 -21 1901  AO5FSB EB3GHN R+00 (x2)
221715  -7 1845  AO5FSB 3Z6AEF JO81 (x2)
221800 -21 1902  3Z6AEF AO5FSB -09
221815 -12 2213  AO5FSB EA3BMU JN01
221815  +1 1845  AO5FSB 3Z6AEF R-10
221830 -21 1901  3Z6AEF AO5FSB RR73
221845 -11 2213  AO5FSB EA3BMU JN01
221845  -2 1845  AO5FSB 3Z6AEF 73
221900 -22 1902  CQ AO5FSB IM98
221930 -22 1901  EA3BMU AO5FSB +01
221945 -14 1901  AO5FSB EA3BMU R+03 (x2)
222030 -23 1902  CQ AO5FSB IM98

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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