RY4D — 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: LO32

Receiver-side FT8 activity involving RY4D, decoded by SO8OO in southeastern Poland. 7,378 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 41 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-22.

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 7,378 FT8 messages attributed to RY4D as the transmitting token by decoded message structure across 41 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (56%), followed by 40 m (22%) and 20 m (22%). Most decodes (65%) fell within the six-hour window 20:00-02:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.

Overview

7,378
Messages attributed
41
UTC dates decoded
435
Active 15-min windows
-8 dB
Estimated median S/N

Bands

80m · 4,147 40m · 1,620 20m · 1,611
First attributed message: 2026-06-06
Last attributed message: 2026-10-22 04:06 UTC

Observed FT8 message patterns

Attributed sample
7,378 messages
Active dates
41 UTC dates
Estimated median S/N
-8 dB
Estimated 10th-90th percentile
-18 to 0 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1,160, moderate (-15 to -9 dB) 2,156, strong (≥ -8 dB) 4,062.

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 RY4D 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 RY4D

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
LO32 · 5,538 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,769 km (approx.)
Last such locator decoded
2026-10-22 04:06 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 UTCBandRY4D S/NCounterpartCounterpart S/NMsgsCapture
10-22 02:27 80m - / - DM1EE +13 / - 3 Partial capture
10-22 02:22 80m 0 / - OH6IH -8 / -16 3 ✓ Closing observed
10-22 02:08 80m - / - DL2AMD -1 / - 2 Partial capture
10-22 01:49 80m -3 / +9 RJ9M -14 / -14 5 ✓ Full exchange observed
10-22 01:35 80m -2 / -10 F4ESO +10 / -16 5 ✓ Full exchange observed
10-22 01:21 80m +6 / +4 R2GCV +6 / +7 5 ✓ Full exchange observed
10-22 00:16 80m - / -9 ON8FAB +1 / - 9 Partial capture
10-21 23:29 80m - / - DO8PAT +9 / - 3 Partial capture
10-21 23:28 80m - / - M7FSE -12 / - 5 Partial capture
10-21 23:24 80m - / - E75EP -3 / - 3 Partial capture
10-21 23:18 80m - / - E75EP +3 / - 3 Partial capture
10-21 23:18 80m +2 / - VW0KFJ/R - / -15 2 Partial capture
10-21 23:15 80m - / - ER1CW -12 / - 3 Partial capture
10-21 23:11 80m -4 / +5 DL3ARH +7 / -17 6 ✓ Full exchange observed
10-21 23:02 80m - / - F4NJU -17 / - 2 Partial capture
10-21 22:58 80m 0 / -9 EA2A +8 / -15 5 ✓ Full exchange observed
10-21 22:09 80m - / -1 F4MZI +4 / - 2 Partial capture
10-21 22:07 80m 0 / +10 TA1MB -8 / -17 3 ✓ Full exchange observed
10-21 22:05 80m +2 / -9 DG2EBG +2 / -17 4 ✓ Full exchange observed
10-21 22:00 80m 0 / -9 ON1BH -2 / -18 5 ✓ Full exchange observed
10-21 21:45 80m -2 / - DO6LE - / -17 2 ✓ Closing fragment
10-21 21:27 80m -2 / +2 IZ5ILK -6 / -15 5 ✓ Full exchange observed
10-21 21:12 80m - / - DL6FCK +1 / - 3 Partial capture
10-21 21:05 80m -1 / -14 EU1EU 0 / - 4 ✓ Closing observed
10-21 20:59 80m - / - ON4MAP -2 / - 5 Partial capture
10-21 20:56 80m +1 / - JF3LOP - / -17 2 ✓ Closing fragment
10-21 20:43 80m -5 / +2 S50XX +6 / -11 4 ✓ Full exchange observed
10-21 20:34 80m - / -12 DL9ATW +2 / - 3 ✓ Closing fragment
10-21 20:34 80m - / - F1IQH -16 / - 2 Partial capture
10-21 20:28 80m -2 / - R44XBV - / -21 2 Partial capture
10-21 20:26 80m - / - RA3LCX +4 / - 2 Partial capture
10-21 20:26 80m - / +5 SP2HJN -4 / - 3 ✓ Closing fragment
10-21 19:53 80m - / -10 DL9AJ +18 / - 5 ✓ Closing fragment
10-21 19:48 80m - / - DO5AX -24 / - 2 Partial capture
10-21 19:31 80m - / +2 UN7ED -12 / - 2 ✓ Closing fragment
10-21 19:28 80m - / +5 DK9MLA +4 / - 3 Partial capture
10-21 19:20 80m - / - RX6DX -10 / - 2 ✓ Closing fragment
10-21 19:18 80m - / -2 RN3YN -8 / - 3 ✓ Closing fragment
10-21 19:02 80m - / - DL3JHK -20 / - 2 Partial capture
10-21 18:59 80m - / - DL3JHK -18 / - 2 Partial capture
10-21 18:56 80m -4 / - RA3WJR - / -16 2 ✓ Closing fragment
10-21 18:52 80m -1 / -1 RV3ZK -6 / +4 5 ✓ Full exchange observed
10-21 18:51 80m -4 / - RA1QX -17 / -16 3 ✓ Closing observed
10-21 18:42 80m -6 / - R8PG -5 / -2 4 ✓ Closing observed
10-21 18:40 80m -5 / - RX3DQL 0 / 0 4 Partial capture
10-21 18:40 80m - / -2 R2DX/3 -2 / - 4 ✓ Closing fragment
10-21 03:19 80m -8 / -9 DL1VVQ +10 / +2 3 ✓ Full exchange observed
10-21 03:07 80m - / - DM1EE +2 / - 2 Partial capture
10-21 03:06 80m -4 / - ON8WR -4 / -12 3 ✓ Closing observed
10-21 03:01 80m -9 / - RA4AUY - / +9 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
022345  -4 1646  CQ RY4D LO32 (x6)
022730 +15 1531  RY4D DM1EE JO31 (x3)
024900 -24  596  RY4D R8FH RR73
040245 -12 1646  CQ RY4D LO32 (x5)
40m 
UTC    dB Audio  Message
040115 -10 1042  RY4D SV9AUP R-21 (x2)
041945 -18 1797  RY4D RC6D +06
042000 -12 1776  RC6D RY4D R+01
042100 -17 1776  CQ RY4D LO32
042130 -17 1776  UA9SY RY4D +17 (x2)
042230 -15 1776  CQ RY4D LO32 (x2)
042345 -20 1690  RY4D UA3VFL +01
042400 -15 1777  UA3VFL RY4D R+16
042415 -18 1690  RY4D UA3VFL RR73
042430 -16 1776  UA3VFL RY4D 73
042500 -23 1776  CQ RY4D LO32 (x2)
160m 
UTC    dB Audio  Message
194515  +2  788  RY4D RA3VX -06 (x3)
20m 
UTC    dB Audio  Message
013545 -15  760  CQ RY4D LO32                          a1 (x2)
022630  +0 3035  RY4D IW5ALZ JN53 (x3)
031130 -15  760  RY4D RA3ZDU KO90 (x2)
033530  +8  333  RY4D PD2WL -17 (x2)
033900  -9 3071  RY4D SV2LZX RR73
034030  +1 2790  RY4D IW5ALZ JN53
173330 -22 1422  RY4D DG2NCD JN49
174100 -14 1421  RY4D DB8JV JO31
174130 -12 1421  RY4D G8WIL IO91 (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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