R0SDM/P — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Asiatic Russia

Receiver-side FT8 activity involving R0SDM/P, decoded by SO8OO in southeastern Poland. 17 FT8 messages attributed to this token as transmitter, on 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-08-14 and 2026-08-15.

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 17 FT8 messages attributed to R0SDM/P as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). In this small sample, the estimated median decoder S/N was -9 dB; no usual signal pattern is inferred.

Overview

17
Messages attributed
2
UTC dates decoded
7
Active 15-min windows
-9 dB
Estimated median S/N

Bands

First attributed message: 2026-08-14
Last attributed message: 2026-08-15 09:04 UTC

Observed FT8 message patterns

Attributed sample
17 messages
Active dates
2 UTC dates
Estimated median S/N
-9 dB
S/N percentile sample
Too small
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 10, strong (≥ -8 dB) 5.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

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.

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 UTCBandR0SDM/P S/NCounterpartCounterpart S/NMsgsCapture
08-15 09:06 20m - / +3 F5HNQ +9 / - 2 Partial capture
08-15 09:01 20m -12 / - SP6AXW - / -15 4 Partial capture
08-15 08:55 20m - / +2 F5HNQ +11 / - 3 Partial capture
08-15 08:52 20m - / -16 IK4PLW -6 / - 3 Partial capture
08-15 08:48 20m - / - F5HNQ +10 / - 2 Partial capture
08-15 08:45 20m - / -18 DH2YBG -6 / - 6 Partial capture
08-15 08:37 20m - / - HB9DBM -8 / - 4 Partial capture
08-15 08:33 20m - / - F1HFP -13 / - 5 Partial capture
08-15 08:24 20m - / - F1HFP -15 / - 9 Partial capture
08-15 08:24 20m - / - F5HNQ +1 / - 2 Partial capture
08-15 08:23 20m - / -9 PF2JV -18 / - 2 Partial capture
08-15 08:20 20m - / -10 R4UR -12 / - 6 Partial capture
08-15 08:13 20m - / -20 PA3AIW -10 / - 3 Partial capture
08-15 08:12 20m - / -4 IV3GHY +16 / - 2 Partial capture
08-15 08:07 20m - / - F1SZC -5 / - 11 Partial capture
08-15 08:01 20m - / - F5HNQ +13 / - 2 Partial capture
08-15 07:53 20m - / -13 F5HNQ +2 / - 2 Partial capture
08-15 07:39 20m - / -16 R9TS -11 / - 5 Partial capture
08-15 07:36 20m - / -15 R9TS -10 / - 2 Partial capture
08-15 07:32 20m - / - 9A2AA -4 / - 4 Partial capture
08-15 07:25 20m - / - RA6FC -12 / - 2 Partial capture
08-15 07:25 20m - / - RO3ZR -13 / - 2 Partial capture
08-15 07:21 20m - / - LX1NO -3 / - 5 Partial capture
08-15 07:18 20m - / - RA4CBN -14 / - 2 Partial capture
08-15 07:00 20m - / -14 R4IK -12 / - 2 Partial capture
08-15 06:02 20m - / -11 DF3WI -16 / - 4 Partial capture
08-15 06:00 20m - / - RA4CBN -18 / - 3 Partial capture
08-15 05:54 20m - / - RN3QTS -9 / - 6 Partial capture
08-15 05:43 20m - / - RN3QTS -7 / - 13 Partial capture
08-15 05:33 20m - / - RA4CBN -9 / - 3 Partial capture
08-15 05:29 20m - / - RN3QTS -4 / - 12 Partial capture
08-15 05:20 20m - / - RA4CBN -10 / - 2 Partial capture
08-15 04:41 20m - / -9 R6TA +6 / - 4 Partial capture
08-15 04:12 20m - / - UA9AX -15 / - 3 Partial capture
08-15 04:12 20m - / - R6FX -5 / - 3 Partial capture
08-15 04:02 20m - / - R9CB +1 / - 4 Partial capture
08-15 03:55 20m - / - R9CB 0 / - 5 Partial capture
08-15 03:42 20m - / -10 RV9CX -2 / - 6 ✓ Closing fragment
08-14 18:24 20m - / - SV1MOZ -9 / - 5 Partial capture
08-14 17:19 20m - / +9 EA7CPW +8 / - 2 Partial capture
08-14 17:17 20m - / -10 IK6HRB +4 / - 8 ✓ Closing fragment
08-14 17:14 20m - / - EA3JIS -8 / - 3 Partial capture
08-14 17:14 20m - / -6 EA3AKY -1 / - 2 Partial capture
08-14 17:14 20m - / - EA5GIL -23 / - 2 Partial capture
08-14 17:12 20m - / - EA3IDY +14 / - 18 Partial capture
08-14 17:09 20m - / -9 PB7Z -12 / - 5 Partial capture
08-14 17:08 20m - / - PD7EB -2 / - 2 Partial capture
08-14 17:04 20m - / - DL1BKX -8 / - 12 Partial capture
08-14 17:01 20m - / - UA1ZFL -10 / - 4 Partial capture
08-14 17:00 20m - / - DL1BKX -3 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

20m
UTC    dB Audio  Message
084915  +8 2935  R0SDM/P F5HNQ IN98
085245 -10 2328  R0SDM/P IK4PLW JN64 (x3)
085530 +10 2935  R0SDM/P F5HNQ IN98 (x3)
090130 -11 1380  SP6AXW R0SDM/P -15 (x4)
090500  -3 2815  R0SDM/P UA4CKN -23
090600 -21 1972  R0SDM/P R4LBN LO44
090645  +9 2934  R0SDM/P F5HNQ IN98 (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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