9A8DM — 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: Croatia Most frequent locator attributed to this token: JN86

Receiver-side FT8 activity involving 9A8DM, decoded by SO8OO in southeastern Poland. 59 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 5 UTC dates in the available aggregate history. Observed between 2026-08-28 and 2026-10-10.

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 59 FT8 messages attributed to 9A8DM as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (93%), followed by 20 m (7%). Several six-hour UTC windows tied for the largest share (63%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (97%); the estimated median was -2 dB.

Overview

59
Messages attributed
5
UTC dates decoded
9
Active 15-min windows
-2 dB
Estimated median S/N

Bands

40m · 55 20m · 4
First attributed message: 2026-08-28
Last attributed message: 2026-10-10 13:54 UTC

Observed FT8 message patterns

Attributed sample
59 messages
Active dates
5 UTC dates
Estimated median S/N
-2 dB
Estimated 10th-90th percentile
-7 to +5 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 2, strong (≥ -8 dB) 57.

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 9A8DM 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 9A8DM

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
JN86 · 20 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
521 km (approx.)
Last such locator decoded
2026-10-10 13:49 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 UTCBand9A8DM S/NCounterpartCounterpart S/NMsgsCapture
10-10 13:53 40m -8 / - SP6AXW - / +2 2 ✓ Closing fragment
10-10 13:50 40m - / - DL/AD2LX -20 / - 2 Partial capture
10-10 13:50 40m - / -3 SP9KKA -1 / - 3 Partial capture
10-10 13:49 40m -7 / - DL7DF - / - 3 ✓ Closing fragment
09-06 08:41 40m -6 / - 4O7CC - / +10 5 ✓ Closing fragment
09-05 19:11 40m -4 / -18 DL3MIB +9 / -2 5 ✓ Full exchange observed
09-05 19:09 40m -2 / -4 PA2RO -1 / -3 5 ✓ Full exchange observed
09-05 19:08 40m -3 / - KS3XAU - / -1 4 Partial capture
09-05 18:56 40m +3 / +9 Z62NS -4 / - 2 Partial capture
09-05 18:49 40m +1 / - MW0UPH - / -10 6 ✓ Closing fragment
09-05 18:47 40m +4 / - HF100PKP - / - 2 Partial capture
09-05 18:45 40m +4 / - KJ8DCO - / -8 2 Partial capture
09-05 16:45 40m +1 / - W1AW/0 - / -6 2 Partial capture
09-05 16:43 40m 0 / - IZ8PPI - / -13 2 ✓ Closing fragment
09-05 16:43 40m +1 / +6 DK7ZT -4 / +3 5 ✓ Full exchange observed
09-05 16:41 40m -4 / -3 SP6FME -1 / +7 6 ✓ Full exchange observed
09-05 16:40 40m -2 / -3 9A4ZM +3 / -4 4 ✓ Full exchange observed
09-05 16:38 40m 0 / - MW0USK - / 0 5 ✓ Closing fragment
09-01 18:49 40m -5 / -7 EA6ZS -14 / -7 4 Partial capture
09-01 09:22 40m -7 / - MW3FLI - / -17 7 Partial capture
08-28 10:52 20m +12 / -11 EA9AA -22 / - 7 Partial capture
08-13 13:17 10m - / -13 GJ0KYZ -20 / - 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
084315  -6 1139  4O7CC 9A8DM 73
134900  -8 1140  DL7DF 9A8DM JN86 (x3)
135015  -1 1049  9A8DM SP9KKA -03
135015 -13 1263  9A8DM OE9GWV JN47
135015 -21 2026  <9A8DM> DL/AD2LX
135045  -1 1049  9A8DM SP9KKA -03
135045  -6 2833  9A8DM HA1DCQ -05
135045 -19 2025  <9A8DM> DL/AD2LX
135115  -1 1049  9A8DM SP9KKA -03
135300  -7 1139  IU8RFW 9A8DM RR73
135315  -7 1264  9A8DM OE9GWV JN47
135330  -8 1140  SP6AXW 9A8DM +02 (x2)
20m 
UTC    dB Audio  Message
145515 -17  821  9A8DM MW7MCX -21
105245  +8  978  EA9AA 9A8DM JN86 (x4)
105500 -24 1835  9A8DM EA9AA -11 (x3)
10m 
UTC    dB Audio  Message
131715 -20 1263  9A8DM GJ0KYZ -13 (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

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