AA4R — 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: United States Most frequent locator attributed to this token: EN64

Receiver-side FT8 activity involving AA4R, decoded by SO8OO in southeastern Poland. 54 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 5 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-09-23.

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 54 FT8 messages attributed to AA4R as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (54%), followed by 40 m (35%) and 80 m (11%). Most decodes (65%) fell within the six-hour window 19:00-01:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

54
Messages attributed
5
UTC dates decoded
12
Active 15-min windows
-9 dB
Estimated median S/N

Bands

First attributed message: 2026-06-08
Last attributed message: 2026-09-23 01:27 UTC

Observed FT8 message patterns

Attributed sample
54 messages
Active dates
5 UTC dates
Estimated median S/N
-9 dB
Estimated 10th-90th percentile
-14 to -5 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 25, strong (≥ -8 dB) 26.

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.

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 AA4R

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
EN64 · 28 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
7,465 km (approx.)
Last such locator decoded
2026-09-23 01:27 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 UTCBandAA4R S/NCounterpartCounterpart S/NMsgsCapture
10-19 21:07 40m - / - SV1AZL -15 / - 3 Partial capture
10-19 20:14 40m - / -13 LA8ENA -14 / - 2 ✓ Closing fragment
10-14 01:24 60m - / -14 F8NHF +3 / - 6 ✓ Closing fragment
09-25 01:20 80m - / - ON6AA +9 / - 2 Partial capture
09-23 00:26 80m -16 / - RI1FJZ - / - 2 Partial capture
09-13 23:12 40m - / - EX7CQ 0 / - 2 ✓ Closing fragment
09-13 23:09 40m - / -21 EX7CQ -4 / - 2 Partial capture
09-02 00:03 40m - / - G5TV -10 / - 2 Partial capture
08-22 01:50 40m -9 / - UR1CCT - / - 10 Partial capture
08-21 01:18 40m -4 / - PV8AJ -16 / - 3 ✓ Closing observed
08-21 01:06 40m - / - SP7NC 0 / - 4 Partial capture
08-21 01:05 40m -5 / - W0LS - / - 2 ✓ Closing fragment
08-21 01:03 40m - / -18 JY4CH -15 / - 3 Partial capture
08-21 01:01 40m -6 / -12 EC3A -6 / - 4 ✓ Closing observed
08-21 00:46 40m - / -13 4X1UF -5 / - 4 Partial capture
08-21 00:44 40m -10 / - EA1RFF - / - 2 Partial capture
08-21 00:39 40m - / -13 4X1UF -4 / - 8 Partial capture
08-19 23:22 40m - / -6 DK7VK -2 / - 7 ✓ Closing fragment
08-19 05:57 60m - / -21 F5OZC -18 / - 3 Partial capture
08-17 00:58 80m - / -11 VP8A -22 / - 2 ✓ Closing fragment
08-03 12:27 20m - / -8 DM1YS -22 / - 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
015500  -4 2953  UR1CCT AA4R EN64 (x3)
000345 -13 1543  AA4R G5TV IO93 (x2)
230900  -7 1715  AA4R EX7CQ -21 (x4)
201430 -14 2171  AA4R LA8ENA -13 (x2)
210500  -8 2745  AA4R LB7ZG R-14
210700 -14  353  AA4R SV1AZL KM17 (x3)
60m
UTC    dB Audio  Message
055715 -15 2180  AA4R F5OZC -21 (x3)
012415  -5 2183  AA4R F8NHF JO10 (x6)
80m
UTC    dB Audio  Message
005830 -21  539  AA4R VP8A -11 (x2)
002115 -15 2892  RI1FJZ AA4R EN64 (x6)
011730 +14 1178  AA4R ON6AA JO11 (x3)
20m
UTC    dB Audio  Message
122700 -24 1982  AA4R DM1YS -08 (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

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee