AB5VJ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: FM19

Receiver-side FT8 activity involving AB5VJ, decoded by SO8OO in southeastern Poland. 31 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 3 UTC dates in the available aggregate history. Observed between 2026-09-10 and 2026-09-12.

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 31 FT8 messages attributed to AB5VJ as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (90%), followed by 80 m (10%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -16 dB.

Overview

31
Messages attributed
3
UTC dates decoded
8
Active 15-min windows
-16 dB
Estimated median S/N

Bands

80m · 3 40m · 28
First attributed message: 2026-09-10
Last attributed message: 2026-09-12 03:05 UTC

Observed FT8 message patterns

Attributed sample
31 messages
Active dates
3 UTC dates
Estimated median S/N
-16 dB
Estimated 10th-90th percentile
-23 to -8 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 17, moderate (-15 to -9 dB) 10, strong (≥ -8 dB) 4.

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 AB5VJ 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 AB5VJ

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
FM19 · 7 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
7,310 km (approx.)
Last such locator decoded
2026-09-12 02:44 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 UTCBandAB5VJ S/NCounterpartCounterpart S/NMsgsCapture
09-12 03:08 80m - / -7 IZ2AMW -2 / - 5 ✓ Closing fragment
09-12 03:08 80m - / -18 F5RRS +12 / - 4 ✓ Closing fragment
09-12 03:02 80m -22 / - J88IH - / -7 2 ✓ Closing fragment
09-12 02:40 40m -17 / - OK1IG - / 0 3 Partial capture
09-12 02:35 40m -16 / - KD5USA - / +7 2 Partial capture
09-12 02:34 40m -14 / - HA2AI - / - 2 Partial capture
09-12 02:28 40m - / 0 CR7BRV -6 / - 4 ✓ Closing fragment
09-12 02:24 40m -15 / - F5PBG -4 / -24 5 Partial capture
09-12 02:22 40m - / +3 AM42SDC -18 / - 2 Partial capture
09-11 02:00 40m -10 / -13 RA6FRI +9 / -14 12 ✓ Full exchange observed
09-11 01:59 40m -11 / - CU6AB - / - 2 Partial capture
09-11 01:54 40m -24 / +1 PV8AJ -12 / - 3 ✓ Closing observed
09-10 01:34 80m - / -15 PI4DX -10 / - 2 ✓ Closing fragment
09-10 01:28 40m -20 / -5 G5STU -6 / - 3 ✓ Closing observed
09-10 01:24 40m -7 / - N3FMC - / -17 3 ✓ Closing fragment
09-10 01:22 40m - / -7 SV8/F2VX +5 / - 2 Partial capture
09-10 01:12 40m - / -6 SV9/SV1ABB -12 / - 2 Partial capture
09-10 01:10 40m -20 / -8 CR7BRV -6 / - 3 ✓ Closing observed
09-09 05:39 80m - / - G8OO -24 / - 3 Partial capture
09-09 05:25 80m - / - ON5RZ -14 / - 8 Partial capture
09-09 05:19 80m - / -13 DO1ID +6 / - 2 Partial capture
09-09 05:19 80m - / -6 G0BLB -20 / - 3 ✓ Closing fragment
09-09 05:16 80m - / - G0BLB -14 / - 2 Partial capture
09-09 05:15 80m - / -1 F5NLY -20 / - 8 ✓ Closing fragment
09-09 05:11 80m - / -14 ON7GB -12 / - 6 Partial capture
09-09 05:08 80m - / -17 F5RRS -17 / - 7 ✓ Closing fragment
09-09 05:06 80m - / -15 G1XOW -9 / - 3 ✓ Closing fragment
09-09 05:04 80m - / -5 PI4DX -5 / - 2 ✓ Closing fragment
09-09 04:21 40m - / -13 IS0AFM +4 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
030245 -23 2229  J88IH AB5VJ R-07 (x2)
030500  +9  516  AB5VJ UX5UO KO50
030515 -24 2228  N1KSY AB5VJ +05
030815 +18  496  AB5VJ F5RRS -18
030815 -12 2497  AB5VJ EA5IT IM99
030845  -2 1819  AB5VJ IZ2AMW JN45
030845  +9  496  AB5VJ F5RRS -18
030915  +5 1819  AB5VJ IZ2AMW JN45
030915 +11  496  AB5VJ F5RRS RR73
030945  -6 1819  AB5VJ IZ2AMW JN45
030945 +10  496  AB5VJ F5RRS RR73
031045  -9 1819  AB5VJ IZ2AMW R-07 (x2)
033945  -8 1637  AB5VJ DK2EU JO31
40m 
UTC    dB Audio  Message
022800  -5  594  AB5VJ CR7BRV +00 (x4)
023415 -14 2393  HA2AI AB5VJ RRR (x2)
023545 -15 2393  KD5USA AB5VJ +07 (x2)
023845 -15 2392  KE8ESJ AB5VJ 73
024030 -17 2392  OK1IG AB5VJ FM19 (x3)
024300 -18 2264  SV9QWC AB5VJ -11
024430 -16 2264  CT7AXN AB5VJ FM19
024600 -21 2264  OE8DDX AB5VJ -25

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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