W9DHI — 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: EN63

Receiver-side FT8 activity involving W9DHI, decoded by SO8OO in southeastern Poland. 499 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 28 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-23.

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 499 FT8 messages attributed to W9DHI as the transmitting token by decoded message structure across 28 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (94%), followed by 40 m (6%). Most decodes (72%) fell within the six-hour window 21:00-03:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7.2 dB.

Overview

499
Messages attributed
28
UTC dates decoded
75
Active 15-min windows
-7.2 dB
Estimated median S/N

Bands

40m · 31 20m · 468
First attributed message: 2026-06-07
Last attributed message: 2026-09-23 00:53 UTC

Observed FT8 message patterns

Attributed sample
499 messages
Active dates
28 UTC dates
Estimated median S/N
-7.2 dB
Estimated 10th-90th percentile
-14 to +11 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 29, moderate (-15 to -9 dB) 183, strong (≥ -8 dB) 287.

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 W9DHI 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 W9DHI

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
EN63 · 301 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
7,549 km (approx.)
Last such locator decoded
2026-09-23 00:52 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 UTCBandW9DHI S/NCounterpartCounterpart S/NMsgsCapture
10-20 05:56 40m - / -17 OT7K +6 / - 2 ✓ Closing fragment
10-17 05:29 60m - / - OE7RFJ -8 / - 3 Partial capture
10-10 00:25 40m - / - F5NBU 0 / - 2 ✓ Closing fragment
10-06 00:07 40m - / -5 CT2HEX -11 / - 3 ✓ Closing fragment
09-29 00:15 40m - / -5 IZ5IMD -17 / - 2 Partial capture
09-29 00:12 40m - / -15 G8KHF -3 / - 4 ✓ Closing fragment
09-29 00:02 40m - / - EA7LZ -16 / - 2 ✓ Closing fragment
09-28 23:59 40m - / -13 GI4FUE -10 / - 2 ✓ Closing fragment
09-28 23:52 40m - / -6 F4EGM +12 / - 3 ✓ Closing fragment
09-28 23:48 40m - / - G4YAN -3 / - 5 Partial capture
09-28 23:42 40m - / - DD3ME +2 / - 2 Partial capture
09-27 06:25 40m - / - DH0BRO -8 / - 2 Partial capture
09-27 06:11 40m - / - SP1ZMO +2 / - 2 Partial capture
09-23 00:52 40m -11 / - KB3UJT - / -2 3 Partial capture
09-23 00:50 40m -13 / - N4NF - / -10 4 ✓ Closing fragment
09-23 00:45 40m -11 / - DL2IR - / -17 2 Partial capture
09-20 08:20 40m - / - G0THF -16 / - 2 Partial capture
09-20 05:58 80m - / -13 G4IRN -6 / - 3 ✓ Closing fragment
09-20 05:50 80m - / -15 F1PBZ -5 / - 3 Partial capture
09-20 05:50 80m - / -16 F5USK -20 / - 3 ✓ Closing fragment
09-20 05:49 80m - / -14 F5OYM -16 / - 2 ✓ Closing fragment
09-20 05:46 80m - / -13 F5GN -10 / - 5 ✓ Closing fragment
09-20 05:44 80m - / -11 EA3A -10 / - 2 ✓ Closing fragment
09-20 05:41 80m - / -12 F1PBZ +8 / - 2 Partial capture
09-20 05:38 80m - / -13 F6DZU -8 / - 2 ✓ Closing fragment
09-20 05:38 80m - / -23 ON7GB +2 / - 5 ✓ Closing fragment
09-19 07:01 40m - / -7 F1MXE -12 / - 2 ✓ Closing fragment
09-19 07:00 40m - / -23 DA1ST -1 / - 3 Partial capture
09-19 06:59 40m - / -13 M8FQT -8 / - 2 ✓ Closing fragment
09-19 06:51 40m - / - DL2DT -12 / - 2 Partial capture
09-19 06:36 40m - / -24 G0VAX -14 / - 2 ✓ Closing fragment
09-19 05:42 40m - / -9 EA6AJW -20 / - 3 ✓ Closing fragment
09-19 05:36 40m - / -12 DL2MIJ -4 / - 3 ✓ Closing fragment
09-19 05:35 40m - / -16 IU5JHK -4 / - 2 ✓ Closing fragment
09-19 05:29 40m - / -9 F5OYM -3 / - 3 ✓ Closing fragment
09-19 05:20 40m - / -5 F6HUK -4 / - 2 ✓ Closing fragment
09-19 01:20 40m - / - M9RPO -2 / - 2 Partial capture
09-19 00:35 40m - / - IT9JNN -10 / - 2 Partial capture
09-19 00:30 40m - / -12 GM6URC -4 / - 2 Partial capture
09-19 00:05 40m - / -15 2E0FXE -2 / - 5 ✓ Closing fragment
09-19 00:01 40m - / - F6FDY -6 / - 3 Partial capture
09-18 23:50 40m - / - DL3MIB -11 / - 2 Partial capture
09-17 01:52 40m - / -19 SV9QWC -8 / - 2 Partial capture
09-17 01:35 40m - / -15 GM6URC -17 / - 3 Partial capture
09-17 01:15 40m - / -15 GM6URC -17 / - 3 Partial capture
09-10 23:46 40m - / - F4MIZ +3 / - 2 Partial capture
09-10 07:05 40m - / -24 G4AWA -6 / - 3 ✓ Closing fragment
09-10 06:53 40m - / - IK2ZJR -10 / - 2 Partial capture
09-10 06:52 40m - / -7 ON4AOI +3 / - 2 ✓ Closing fragment
09-10 06:51 40m - / - PD0WL -22 / - 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
001300  -4  880  W9DHI G8KHF RR73 (x2)
001500 -17 2221  W9DHI IZ5IMD -05 (x2)
000730  -7  788  W9DHI CT2HEX IM58 (x3)
001730 -13 1308  W9DHI BA9QQB/R -07
002530  +2 2838  W9DHI F5NBU JN28 (x2)
003945  -8 2839  W9DHI YU4FQN KN04 (x2)
004345  -5 2839  W9DHI DK4RH JO31
055630  +6  723  W9DHI OT7K -17 (x2)
60m 
UTC    dB Audio  Message
052945  -6 2154  W9DHI OE7RFJ JN67 (x3)
80m 
UTC    dB Audio  Message
054745 -11 1296  W9DHI F5GN R-14 (x3)
054915  -8 2907  W9DHI F5OYM -14 (x2)
055045 -20 2417  W9DHI F5USK JN03
055045  -4  452  W9DHI F1PBZ -15
055115 -19 2416  W9DHI F5USK R-16
055115  -7  453  W9DHI F1PBZ -15
055145 -22 2417  W9DHI F5USK 73
055145  -5  453  W9DHI F1PBZ -15
055800  -6  587  W9DHI G4IRN IO82 (x3)
002215 -24 1913  W9DHI W1EQ +01
20m 
UTC    dB Audio  Message
150930  +1 2585  W9DHI DL1R JN58
151400  +7 2353  W9DHI R1QBQ -12 (x2)
151700 -10 1916  W9DHI F6EKI JN23 (x4)
155130  +3 2867  W9DHI F1JPG R-15 (x2)
160130 -10 1735  W9DHI DB5BC JO30 (x2)
160800 +10 2967  W9DHI DG3ET JO30 (x3)
175830  -5 3060  W9DHI IU2LVV JN45

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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