AA4DD — 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: EM86

Receiver-side FT8 activity involving AA4DD, decoded by SO8OO in southeastern Poland. 147 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-08-22 and 2026-11-01.

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 147 FT8 messages attributed to AA4DD as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (95%), followed by 80 m (5%) and 40 m (1%). 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 -11 dB.

Overview

147
Messages attributed
4
UTC dates decoded
12
Active 15-min windows
-11 dB
Estimated median S/N

Bands

80m · 7 40m · 1 20m · 139
First attributed message: 2026-08-22
Last attributed message: 2026-11-01 04:48 UTC

Observed FT8 message patterns

Attributed sample
147 messages
Active dates
4 UTC dates
Estimated median S/N
-11 dB
Estimated 10th-90th percentile
-18 to -3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 31, moderate (-15 to -9 dB) 69, strong (≥ -8 dB) 47.

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 AA4DD 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 AA4DD

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
EM86 · 41 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
7,911 km (approx.)
Last such locator decoded
2026-11-01 04:47 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 UTCBandAA4DD S/NCounterpartCounterpart S/NMsgsCapture
11-01 06:12 80m - / -15 DL6II +2 / - 2 Partial capture
11-01 06:08 80m - / -10 F6DZU +1 / - 3 ✓ Closing fragment
11-01 06:06 80m - / -18 F5USK 0 / - 2 Partial capture
11-01 06:03 80m - / -16 DL3OCF -1 / - 6 Partial capture
11-01 06:02 80m - / - OK1UOZ +20 / - 12 Partial capture
11-01 06:01 80m - / -16 F4EGM -4 / - 4 ✓ Closing fragment
11-01 05:52 80m - / - SP9AWP +5 / - 2 Partial capture
11-01 05:49 80m - / - F4EGM -1 / - 12 Partial capture
11-01 05:49 80m - / - IZ7NLJ -4 / - 2 Partial capture
11-01 05:47 80m - / -16 DL3OCF +10 / - 2 Partial capture
11-01 05:45 80m - / - DD2MON -12 / - 4 Partial capture
11-01 05:45 80m - / -14 I2SVA +1 / - 3 ✓ Closing fragment
11-01 05:43 80m - / - OK1UOZ +20 / - 9 Partial capture
11-01 05:43 80m - / - F5MXH 0 / - 2 Partial capture
11-01 05:42 80m - / - G0BLB +5 / - 2 Partial capture
11-01 05:42 80m - / - OM2IB +15 / - 5 Partial capture
11-01 05:42 80m - / - OM3WFH +7 / - 8 Partial capture
11-01 05:39 80m - / -9 CT2HEX -12 / - 3 ✓ Closing fragment
11-01 05:28 80m - / -9 EA5D -4 / - 5 ✓ Closing fragment
11-01 05:26 80m - / -18 OM2KI +16 / - 8 ✓ Closing fragment
11-01 05:24 80m - / -22 YO7CFD -1 / - 5 Partial capture
11-01 05:14 80m - / - ON1JP -8 / - 2 ✓ Closing fragment
11-01 05:03 80m - / - OK1UOZ +18 / - 10 Partial capture
11-01 05:02 80m - / - DL8TV +16 / - 2 Partial capture
11-01 05:02 80m - / - F4FLF +8 / - 4 Partial capture
11-01 05:02 80m - / - OM2KI +22 / - 5 Partial capture
11-01 04:56 80m - / - OM2KI +26 / - 3 Partial capture
11-01 04:56 80m - / -18 OM2WQ +21 / - 12 ✓ Closing fragment
11-01 04:55 80m - / - F4FLF +12 / - 3 Partial capture
11-01 04:54 80m - / - F4EGM +7 / - 3 Partial capture
11-01 04:45 80m - / -16 F1PBZ +8 / - 2 ✓ Closing fragment
11-01 04:45 80m - / - F4EGM -3 / - 4 Partial capture
11-01 04:43 80m - / -1 PI4DX +9 / - 2 ✓ Closing fragment
10-31 06:16 60m - / -13 DK7UY 0 / - 4 ✓ Closing fragment
10-31 06:14 60m - / -25 DL6NDN 0 / - 4 ✓ Closing fragment
10-31 03:50 60m - / -14 HB9SNR -6 / - 3 ✓ Closing fragment
10-31 03:46 60m - / -14 IW1ARB +10 / - 2 ✓ Closing fragment
10-31 03:27 60m - / - G4ATX -5 / - 3 Partial capture
10-31 03:22 60m - / -8 PA4PA +13 / - 3 ✓ Closing fragment
10-31 03:04 60m - / -16 IW2DNI 0 / - 33 ✓ Closing fragment
10-31 03:01 60m - / -19 G0AZH -9 / - 6 ✓ Closing fragment
10-31 02:58 60m - / -18 PC2J -4 / - 5 ✓ Closing fragment
10-03 05:49 80m - / - DK6XY +8 / - 3 Partial capture
10-03 05:49 80m - / - DO2PY -14 / - 2 Partial capture
10-03 05:45 80m - / - PA3FPQ -12 / - 2 Partial capture
10-03 05:42 80m - / - DH9DR -8 / - 3 Partial capture
10-03 05:41 80m - / -15 DL3OCF -7 / - 3 Partial capture
10-03 05:41 80m - / - DO5OT +5 / - 15 Partial capture
10-03 05:37 80m - / - DH9DR +7 / - 5 Partial capture
10-03 05:36 80m - / -11 F6FTB +5 / - 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
060615 +22 2873  AA4DD OK1UOZ JO70
060615  +2 2069  AA4DD F5USK JN03
060615  +6  206  AA4DD DL3OCF -16
060645 +19 2873  AA4DD OK1UOZ JO70
060645  -3 2069  AA4DD F5USK R-18
060645  -7  206  AA4DD DL3OCF -16
060730 +25 2873  AA4DD OK1UOZ JO70 (x2)
060815  +1  453  AA4DD F6DZU R-10
060830 +22 2873  AA4DD OK1UOZ JO70
060845  +0  453  AA4DD F6DZU R-10 (x2)
061015  +5 2622  AA4DD DL6II JO31 (x3)
60m 
UTC    dB Audio  Message
032830  -7  803  AA4DD G4ATX JO01
034630 +10 2176  AA4DD IW1ARB R-14 (x2)
035030  -9 1825  AA4DD HB9SNR JN36 (x3)
061445  +6 2007  AA4DD DL6NDN JO50 (x4)
061645 -15 2080  AA4DD IK8PGE R-17
061645  +4 2617  AA4DD DK7UY JO44 (x4)
160m 
UTC    dB Audio  Message
050530 -13 2369  AA4DD GW4TPG IO81
40m 
UTC    dB Audio  Message
050130 -12 1370  AA4DD ON4FL JO11
050130  -6 2338  AA4DD F4FCE 73
050230 -13 1370  AA4DD ON4FL R-13 (x2)
050330  +1 1891  AA4DD F5RRS JN36 (x5)
050600  +3 2338  AA4DD DM2BM JO54 (x2)
050700  -2  424  AA4DD IZ2QPP JN46 (x3)
051030  -7  231  AA4DD Z34K KN01
20m 
UTC    dB Audio  Message
052645  -6 1985  AA4DD ON3MV JO21
052645  -9 1754  AA4DD F4IIX IN95
052645 -20 1815  AA4DD DL8ZBA 73
052715  -5 1754  AA4DD F4IIX R-03
052745  -7 1985  AA4DD ON3MV JO21
052745  -7 1754  AA4DD F4IIX 73
052800 -18 2090  CQ AA4DD EM86
052830 -18 2089  N3FMC AA4DD R-06
052945 -14 3121  AA4DD US5QRZ KN77
053015 -19 2091  AA4DD I7NOT R-18 (x3)
053145 -20 2090  AA4DD 5B4ARQ KM64 (x3)

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