9Y4DG — 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: Trinidad & Tobago Most frequent locator attributed to this token: FK90

Receiver-side FT8 activity involving 9Y4DG, decoded by SO8OO in southeastern Poland. 232 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 19 UTC dates in the available aggregate history. Observed between 2026-07-24 and 2026-10-04.

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 232 FT8 messages attributed to 9Y4DG as the transmitting token by decoded message structure across 19 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (81%), followed by 40 m (18%) and 10 m (0%). Several six-hour UTC windows tied for the largest share (87%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (94%); the estimated median was -21 dB.

Overview

232
Messages attributed
19
UTC dates decoded
63
Active 15-min windows
-21 dB
Estimated median S/N

Bands

40m · 42 20m · 189 10m · 1
First attributed message: 2026-07-24
Last attributed message: 2026-10-04 03:10 UTC

Observed FT8 message patterns

Attributed sample
232 messages
Active dates
19 UTC dates
Estimated median S/N
-21 dB
Estimated 10th-90th percentile
-24 to -17 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 218, moderate (-15 to -9 dB) 14, 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.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with 9Y4DG 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 9Y4DG

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
FK90 · 164 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
8,602 km (approx.)
Last such locator decoded
2026-10-04 03:10 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 UTCBand9Y4DG S/NCounterpartCounterpart S/NMsgsCapture
10-04 02:53 40m - / -20 R2ZCA -14 / - 2 ✓ Closing fragment
10-03 07:35 40m - / -10 M0MLS -20 / - 2 ✓ Closing fragment
10-03 07:22 40m - / -13 G4DBW -11 / - 2 ✓ Closing fragment
10-03 06:55 40m - / -17 G5LSB -16 / - 5 ✓ Closing fragment
10-03 06:35 40m - / - M8FQT -17 / - 3 Partial capture
10-03 06:23 40m - / -19 ON8LX -14 / - 4 Partial capture
10-03 05:13 40m - / -10 IK2PZX -2 / - 2 Partial capture
10-03 05:03 40m - / -22 3Z4DX -4 / - 2 ✓ Closing fragment
10-03 05:00 40m - / -15 DK4TM -1 / - 3 ✓ Closing fragment
10-03 04:51 40m - / -13 IZ7DOK -4 / - 2 Partial capture
10-03 04:46 40m - / - EA7LLJ -10 / - 2 Partial capture
10-03 04:45 40m - / -13 3Z4DX -9 / - 5 Partial capture
10-03 04:26 40m - / -18 3Z4DX -10 / - 2 Partial capture
10-03 04:18 40m - / - F4MOJ -7 / - 4 Partial capture
10-03 04:09 40m - / -14 EA3NE -4 / - 2 ✓ Closing fragment
10-03 04:07 40m - / - PA0KGB -3 / - 5 Partial capture
10-03 04:02 40m - / - F3CJ -15 / - 4 Partial capture
10-02 06:57 40m - / - PI4TS -15 / - 5 Partial capture
10-02 06:42 40m - / - DL3KVR +6 / - 2 Partial capture
10-02 06:35 40m - / - IN3IZQ -17 / - 5 Partial capture
10-02 06:32 40m - / - DL3KVR -8 / - 4 Partial capture
10-02 06:25 40m - / - IZ0RPS -8 / - 2 Partial capture
10-02 06:10 40m - / - DL2LTH -6 / - 2 Partial capture
10-02 06:02 40m - / - IZ0RPS 0 / - 2 Partial capture
10-02 05:29 40m - / - F4NQP -18 / - 3 Partial capture
10-02 05:18 40m - / - F4NQP -18 / - 2 Partial capture
10-02 05:13 40m - / - DL3KRI -4 / - 2 Partial capture
10-02 04:41 40m - / - EA3IVL -18 / - 4 Partial capture
10-02 04:35 40m - / -20 IZ8NON -8 / - 2 Partial capture
10-02 04:33 40m - / - SV3AUW -20 / - 5 Partial capture
10-02 04:13 40m - / - M7KEV -10 / - 4 Partial capture
10-02 02:23 40m - / - GW0SGL -14 / - 2 Partial capture
10-02 01:36 40m -20 / - IN3IZQ - / -12 2 Partial capture
10-02 01:33 40m - / - GW0SGL -11 / - 5 Partial capture
10-02 01:29 40m - / - RZ4FWA -14 / - 4 Partial capture
10-02 01:10 40m - / - HB9DUQ -12 / - 2 Partial capture
10-02 00:35 40m - / - RK4FV -1 / - 3 Partial capture
10-02 00:18 40m - / -14 F4HJG -14 / - 4 Partial capture
10-02 00:10 40m - / - PA1CG 0 / - 5 Partial capture
10-02 00:08 40m - / -12 EA2EWL -14 / - 4 Partial capture
10-01 04:07 40m - / - IK7DTP -24 / - 3 Partial capture
10-01 03:54 40m - / -13 PD1RK -3 / - 3 ✓ Closing fragment
10-01 03:39 40m - / -16 SV2AOB 0 / - 2 Partial capture
10-01 03:38 40m - / - PA1CG -12 / - 3 Partial capture
10-01 03:26 40m - / - PA1CG -12 / - 3 Partial capture
10-01 03:19 40m - / - IN3IZQ -10 / - 2 Partial capture
10-01 03:18 40m - / -14 F4GYY -17 / - 4 Partial capture
10-01 03:15 40m - / -14 F4GYY -14 / - 3 Partial capture
10-01 02:40 40m - / - TA3NK -6 / - 2 Partial capture
10-01 02:15 40m - / - EB7CFU -12 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
063630 -17 1146  9Y4DG M8FQT IO93 (x2)
065500 -17 1147  9Y4DG G5LSB IO92 (x5)
072200 -10 2312  9Y4DG G4DBW R-13 (x2)
073530 -19 1711  9Y4DG M0MLS R-10 (x2)
025330 -14 1860  9Y4DG R2ZCA R-20 (x2)
030945 -21 1147  CQ 9Y4DG FK90                         a1 (x2)
60m 
UTC    dB Audio  Message
063400  -9 1366  9Y4DG DD4U R-16
063430 -11 1366  9Y4DG RR73; DH8GV <...> +24
065000  +1 1135  9Y4DG PA4CC R-20 (x3)
065430  -8  933  9Y4DG G8OO R-18 (x8)
233500  +2 1777  9Y4DG F5RRS R-14 (x2)
80m 
UTC    dB Audio  Message
041045  +1  902  9Y4DG OG8A KP22
041230  -5 2059  9Y4DG DB3OI R-24 (x2)
042945 -24 1904  9Y4DG K1EZ R-23 (x2)
053100 -15  901  9Y4DG OG8A R-17
053600  -1 1307  9Y4DG DL3OCF -19 (x2)
054045  +5 2550  9Y4DG DF0PDF -16 (x5)
061030 -11 2710  9Y4DG OH6NIO KP12
061900  -3 1305  9Y4DG ON8DM 73
10m 
UTC    dB Audio  Message
150630 +14 2737  9Y4DG CN8WK R-03 (x2)
20m 
UTC    dB Audio  Message
065100 -12 1479  9Y4DG DL1GKH R-17 (x2)
070500  -4 1794  9Y4DG I4BMJ JN54 (x4)
070800 -17  632  9Y4DG F5SZB R-14
072130  -9 1516  9Y4DG IK1JMJ JN35 (x3)
080100  -4 1763  9Y4DG EA4ZM -10
081130 -11 2073  9Y4DG HB9IUP JN46 (x4)
160m 
UTC    dB Audio  Message
211800 -11  746  9Y4DG DL3HN JN49

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