R4ADJ — 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: European Russia Most frequent locator attributed to this token: LN28

Receiver-side FT8 activity involving R4ADJ, decoded by SO8OO in southeastern Poland. 1,581 FT8 messages attributed to this token as transmitter, on 40m, across 5 UTC dates in the available aggregate history. Observed between 2026-10-19 and 2026-10-23.

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 1,581 FT8 messages attributed to R4ADJ 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 (100%). The busiest six-hour window was 17:00-23:00 UTC, containing 48% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.

Overview

1,581
Messages attributed
5
UTC dates decoded
133
Active 15-min windows
-13 dB
Estimated median S/N

Bands

40m · 1,581
First attributed message: 2026-10-19
Last attributed message: 2026-10-23 16:08 UTC

Observed FT8 message patterns

Attributed sample
1,581 messages
Active dates
5 UTC dates
Estimated median S/N
-13 dB
Estimated 10th-90th percentile
-19 to -6 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 446, moderate (-15 to -9 dB) 802, strong (≥ -8 dB) 333.

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 R4ADJ 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 R4ADJ

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
LN28 · 1,211 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,686 km (approx.)
Last such locator decoded
2026-10-23 16:07 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 UTCBandR4ADJ S/NCounterpartCounterpart S/NMsgsCapture
10-23 16:14 40m - / -24 IK6GPZ +5 / - 4 ✓ Closing fragment
10-23 15:42 40m -10 / -2 RJ3DC -18 / - 3 ✓ Full exchange observed
10-23 15:34 40m - / -3 RJ3DC -20 / - 2 Partial capture
10-23 15:30 40m - / -20 DF0KK 0 / - 3 ✓ Closing fragment
10-23 12:23 40m -15 / - UN0PA - / -13 4 Partial capture
10-23 11:22 40m - / - OK2CNI +1 / - 7 Partial capture
10-23 05:23 40m -14 / -22 S51CC +1 / -18 14 Partial capture
10-23 04:53 40m -8 / - R4SF - / -9 3 ✓ Closing fragment
10-23 04:48 40m -12 / - YO4CVV - / -7 2 ✓ Closing fragment
10-23 04:19 40m -9 / +9 UA4WCS -2 / - 4 ✓ Closing observed
10-23 04:17 40m -9 / - RN6DE - / -2 3 ✓ Closing fragment
10-23 03:54 40m - / - F4IIX -10 / - 3 Partial capture
10-23 03:51 40m - / -5 R6AAG -10 / - 2 ✓ Closing fragment
10-23 03:43 40m - / - F4IIX -5 / - 2 Partial capture
10-23 03:30 40m -2 / -17 UA9SY -22 / -7 3 ✓ Full exchange observed
10-23 03:19 40m -12 / -15 OD5KU -16 / -13 2 Partial capture
10-23 03:15 40m -10 / - RU3DBT - / -10 6 ✓ Closing fragment
10-23 03:10 40m -7 / - RA6OF - / -14 2 ✓ Closing fragment
10-23 03:06 40m -7 / - UA3YFL - / -3 3 ✓ Closing fragment
10-22 18:04 40m -10 / - HA8MK - / -14 2 Partial capture
10-22 18:00 40m -13 / -11 2E0FHM -5 / -20 7 ✓ Full exchange observed
10-22 17:56 40m - / - OV5SP -19 / - 2 Partial capture
10-22 17:22 40m -14 / -16 EA4D -5 / -15 7 Partial capture
10-22 17:12 40m -15 / -16 YU1EU -3 / -6 9 ✓ Full exchange observed
10-22 17:04 40m - / -10 ON4ASV +11 / - 3 ✓ Closing fragment
10-22 16:54 40m - / - S53AK -8 / - 5 Partial capture
10-22 16:26 40m - / -7 RA3M +3 / - 2 ✓ Closing fragment
10-22 16:15 40m - / -13 RG8G -12 / - 2 ✓ Closing fragment
10-22 15:56 40m - / -13 RW3ZO -7 / - 3 ✓ Closing fragment
10-22 15:33 40m -13 / - R2DYC -11 / +3 3 ✓ Closing observed
10-22 15:31 40m - / -15 UB3YGA -7 / - 3 ✓ Closing fragment
10-22 15:29 40m - / +9 R3UDU -6 / - 3 ✓ Closing fragment
10-22 14:55 40m -10 / - R3DFU - / -11 2 ✓ Closing fragment
10-22 14:51 40m -12 / - UB3FBD -15 / -3 3 ✓ Closing observed
10-22 14:51 40m - / - DG1HBA -4 / - 2 Partial capture
10-22 00:05 40m - / -13 IX1HPN -7 / - 3 ✓ Closing fragment
10-21 23:14 40m - / -10 EB2EMZ -16 / - 2 Partial capture
10-21 22:50 40m - / -14 EA3AAY -3 / - 3 ✓ Closing fragment
10-21 21:36 40m - / - M6UCD -22 / - 3 Partial capture
10-21 21:10 40m - / - F4MVU -7 / - 3 Partial capture
10-21 21:00 40m - / - F1HSY -12 / - 2 Partial capture
10-21 20:44 40m - / - EA1KCN -7 / - 2 Partial capture
10-21 20:43 40m - / -12 TA1MB -18 / - 2 ✓ Closing fragment
10-21 20:30 40m - / - IZ2QPP -17 / - 3 ✓ Closing fragment
10-21 20:25 40m - / -13 F4EPP -9 / - 2 Partial capture
10-21 19:55 40m -7 / - SP9RQZ - / -18 5 Partial capture
10-21 19:29 40m - / -20 EA1FG -5 / - 4 Partial capture
10-21 19:06 40m - / -18 PD3FCA -13 / - 15 Partial capture
10-21 18:54 40m - / -13 SV1DKR -12 / - 3 ✓ Closing fragment
10-21 18:32 40m -6 / - DM3VPJ - / -18 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
154245 -17 1490  R4ADJ RJ3DC 73
154600  -9 2478  CQ R4ADJ LN28 (x5)
160215  +7 2847  R4ADJ F4GUK JN18
160600  -6 2478  CQ R4ADJ LN28 (x3)
160830 -11 2478  R4PIN R4ADJ R-01
161415  +3  880  R4ADJ IK6GPZ JN62 (x4)

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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