AG4H — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: EM63

Receiver-side FT8 activity involving AG4H, decoded by SO8OO in southeastern Poland. 7 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-06-15 and 2026-08-27.

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 7 FT8 messages attributed to AG4H as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (43%), followed by 20 m (43%) and 80 m (14%). In this small sample, the estimated median decoder S/N was -22 dB; no usual signal pattern is inferred.

Overview

7
Messages attributed
4
UTC dates decoded
5
Active 15-min windows
-22 dB
Estimated median S/N

Bands

80m · 1 40m · 3 20m · 3
First attributed message: 2026-06-15
Last attributed message: 2026-08-27 03:24 UTC

Observed FT8 message patterns

Attributed sample
7 messages
Active dates
4 UTC dates
Estimated median S/N
-22 dB
S/N percentile sample
Too small
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 7, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 0.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with AG4H in decoded directed-looking exchanges:

Most frequent locator attributed to AG4H

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
EM63 · 4 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
8,401 km (approx.)
Last such locator decoded
2026-08-13 01:31 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 UTCBandAG4H S/NCounterpartCounterpart S/NMsgsCapture
09-20 00:47 40m - / -16 G0IUS 0 / - 3 Partial capture
09-20 00:44 40m - / -16 G0IUS +4 / - 2 Partial capture
09-16 00:36 40m - / - EA1AA -5 / - 3 Partial capture
09-10 04:10 60m - / - HB9ALO -19 / - 3 Partial capture
09-10 03:37 60m - / -4 6Y5HN -20 / - 2 ✓ Closing fragment
09-02 00:40 40m - / -8 DK7ZT -14 / - 3 Partial capture
08-29 05:28 20m - / -15 EA5IXH +2 / - 3 ✓ Closing fragment
08-29 05:27 20m - / -17 Z35T +6 / - 2 ✓ Closing fragment
08-28 21:42 20m - / - F5PBG -5 / - 3 Partial capture
08-28 21:40 20m - / -9 F5RRS +2 / - 3 ✓ Closing fragment
08-28 02:36 20m - / -13 SV5BYP -14 / - 3 ✓ Closing fragment
08-27 03:31 40m - / -13 S55OO -8 / - 5 Partial capture
08-27 03:28 40m - / -23 OZ1KZX +7 / - 2 ✓ Closing fragment
08-27 03:25 40m - / -20 R2EC 0 / - 2 Partial capture
08-27 02:50 40m - / - F5NNN -11 / - 6 Partial capture
08-27 02:50 40m -24 / -17 RZ6L +15 / -11 4 ✓ Full exchange observed
08-26 02:02 80m - / -19 OH1MLZ +15 / - 2 Partial capture
08-08 02:16 60m - / - ON8BB +8 / - 6 Partial capture
08-08 00:47 40m - / - YO7ARZ -16 / - 2 Partial capture
08-07 03:35 80m - / -21 LA9GX +10 / - 6 ✓ Closing fragment
08-07 03:31 80m - / -23 OA4CLU -21 / - 3 ✓ Closing fragment
08-06 04:42 80m - / -16 2W0YOX -14 / - 4 ✓ Closing fragment
08-06 03:29 40m - / - YO9IAB 0 / - 2 Partial capture
08-04 02:44 80m - / -10 TJ1GD/P -10 / - 2 ✓ Closing fragment
08-03 03:48 80m - / -18 DL8TV +4 / - 3 ✓ Closing fragment
08-03 03:47 80m - / - OK1WE +10 / - 6 Partial capture
07-23 02:45 80m - / -19 HA7TM +9 / - 3 ✓ Closing fragment
07-19 02:37 80m - / -18 TN8GD -24 / - 3 ✓ Closing fragment
07-19 02:32 80m - / -17 SP6JIU +21 / - 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
033230  -3 2146  AG4H S55OO R-13 (x3)
004045 -16 1905  AG4H DK7ZT -08 (x3)
003645  -7 1421  AG4H EA1AA IN83 (x3)
035045  -6 2693  AG4H D44TWO RR73
004445  +3 1109  AG4H G0IUS -16 (x5)
60m 
UTC    dB Audio  Message
021615 +12 2532  AG4H ON8BB JO21 (x6)
033715 -19 1978  AG4H 6Y5HN -04 (x2)
041000 -17 1270  AG4H HB9ALO JN45 (x3)
20m 
UTC    dB Audio  Message
023615 -16 1963  AG4H SV5BYP KM46 (x3)
024015 -16 1065  AG4H PT7RF HI06
214045  +0 2013  AG4H F5RRS JN36 (x3)
214215  -6 1225  AG4H F5PBG IN78 (x3)
052700  +7 2723  AG4H Z35T -17 (x2)
052800  +3 2406  AG4H EA5IXH IM98 (x3)
80m 
UTC    dB Audio  Message
044315 -13  955  AG4H 2W0YOX -14 (x2)
033130 -17 1503  AG4H OA4CLU -23 (x3)
033530 +13 2384  AG4H LA9GX -21 (x6)
005300 -12  605  AG4H W1AW/1 +00
013100 -19  995  CX6TU AG4H EM63
020200 +16 2433  AG4H OH1MLZ -19 (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.

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