9A5BDE — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Croatia Most frequent locator attributed to this token: JN83

Receiver-side FT8 activity involving 9A5BDE, decoded by SO8OO in southeastern Poland. 90 FT8 messages attributed to this token as transmitter, on 80m, 40m, 10m, across 4 UTC dates in the available aggregate history. Observed between 2026-06-15 and 2026-09-20.

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 90 FT8 messages attributed to 9A5BDE as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (81%), followed by 40 m (18%) and 10 m (1%). Several six-hour UTC windows tied for the largest share (67%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (89%); the estimated median was +7 dB.

Overview

90
Messages attributed
4
UTC dates decoded
10
Active 15-min windows
+7 dB
Estimated median S/N

Bands

80m · 73 40m · 16 10m · 1
First attributed message: 2026-06-15
Last attributed message: 2026-09-20 18:11 UTC

Observed FT8 message patterns

Attributed sample
90 messages
Active dates
4 UTC dates
Estimated median S/N
+7 dB
Estimated 10th-90th percentile
-9 to +13 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 10, strong (≥ -8 dB) 80.

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 9A5BDE 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 9A5BDE

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
JN83 · 32 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
803 km (approx.)
Last such locator decoded
2026-09-20 18:10 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 UTCBand9A5BDE S/NCounterpartCounterpart S/NMsgsCapture
09-20 18:10 80m +3 / -9 EW6PG +4 / -4 5 ✓ Full exchange observed
09-20 17:52 80m 0 / - SA3CAT - / - 9 Partial capture
09-20 00:17 80m +12 / - UN7LZ - / - 2 Partial capture
09-20 00:15 80m +11 / +1 I8OHQ +6 / - 6 ✓ Full exchange observed
09-20 00:11 80m +6 / +2 US5RK +10 / +2 9 Partial capture
09-20 00:09 80m +6 / - R4FDD +9 / -9 3 ✓ Closing observed
09-20 00:07 80m +5 / -8 ON4MAP -12 / -12 7 ✓ Full exchange observed
09-20 00:04 80m +7 / -6 EC3A -11 / - 4 ✓ Closing observed
09-20 00:04 80m +10 / -1 YO6LM +21 / - 5 ✓ Full exchange observed
09-20 00:03 80m +10 / - SV3CEZ -8 / - 5 ✓ Full exchange observed
09-19 23:54 80m +10 / - R4FDK -2 / -15 12 Partial capture
09-19 23:54 80m +8 / +6 OK1UOZ +13 / +1 5 ✓ Full exchange observed
09-19 23:54 80m +8 / +9 RD7O +14 / +3 5 ✓ Full exchange observed
09-19 23:50 80m +4 / -12 TF3VS 0 / -5 5 ✓ Full exchange observed
09-19 23:48 80m +6 / -1 PC2J -3 / -21 5 ✓ Full exchange observed
09-19 23:48 80m +9 / -5 RA6OY +3 / -3 12 ✓ Full exchange observed
09-19 23:46 80m +6 / +2 9A3AUH +9 / - 5 ✓ Full exchange observed
09-19 23:45 80m +10 / -1 DL9KM -1 / -9 5 ✓ Full exchange observed
09-19 23:44 80m +10 / - EA3FR - / -23 2 ✓ Closing fragment
09-19 23:42 80m +11 / -1 CT7AUT -21 / -1 5 ✓ Full exchange observed
09-19 23:41 80m +14 / -2 UF4S +10 / +4 5 ✓ Full exchange observed
09-19 15:30 40m - / -12 R3ES +3 / - 2 ✓ Closing fragment
09-19 15:28 40m -5 / -1 E70SZ +6 / - 4 ✓ Closing observed
09-18 18:20 40m -8 / -4 F4GYG -1 / -5 2 Partial capture
09-18 18:20 40m -8 / - F5PBG -10 / -4 4 ✓ Closing observed
09-18 18:18 40m -5 / -6 DK9BM 0 / +10 3 ✓ Full exchange observed
09-18 18:16 40m -8 / - EA2FGV -12 / -2 4 ✓ Closing observed
09-18 18:15 40m -8 / - R6LQU - / -11 3 ✓ Closing fragment
09-18 18:12 40m -9 / +5 SQ9BDB -3 / -7 6 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
175230  +1 2117  9A5BDE IQ4JO JN63
175245  -2 1340  SA3CAT 9A5BDE JN83 (x9)
181045  +3 1340  EW6PG 9A5BDE JN83
181100  +9 1906  9A5BDE EW6PG -09
181115  +4 1341  EW6PG 9A5BDE R-04
181130  +0 1906  9A5BDE EW6PG RR73
181145  +3 1341  EW6PG 9A5BDE 73
40m 
UTC    dB Audio  Message
181845  -5 1438  DK9BM 9A5BDE R+10
181900  -1 2222  9A5BDE DK9BM RR73
181930  -4 1442  9A5BDE UT2SQ KN29
182000  -8 1437  9A5BDE F5PBG IN78
182000  -1 1689  9A5BDE F4GYG -04
182015  -8 1438  F4GYG 9A5BDE R-05
182100 -11 1437  9A5BDE F5PBG IN78
182145  -8 1438  F5PBG 9A5BDE -04 (x2)
152845  +7  765  9A5BDE E70SZ -01 (x3)
153000  -5 1437  E70SZ 9A5BDE 73
153045  +3 2581  9A5BDE R3ES -12 (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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