DO3RST — 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: Fed. Rep. of Germany Most frequent locator attributed to this token: JO31

Receiver-side FT8 activity involving DO3RST, decoded by SO8OO in southeastern Poland. 76 FT8 messages attributed to this token as transmitter, on 160m, 80m, across 8 UTC dates in the available aggregate history. Observed between 2026-10-02 and 2026-10-18.

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 76 FT8 messages attributed to DO3RST as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (97%), followed by 160 m (3%). Most decodes (96%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (74%); the estimated median was -4 dB.

Overview

76
Messages attributed
8
UTC dates decoded
13
Active 15-min windows
-4 dB
Estimated median S/N

Bands

First attributed message: 2026-10-02
Last attributed message: 2026-10-18 22:28 UTC

Observed FT8 message patterns

Attributed sample
76 messages
Active dates
8 UTC dates
Estimated median S/N
-4 dB
Estimated 10th-90th percentile
-14 to +4 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 5, moderate (-15 to -9 dB) 15, strong (≥ -8 dB) 56.

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.

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 DO3RST

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
JO31 · 52 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,054 km (approx.)
Last such locator decoded
2026-10-18 22:28 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 UTCBandDO3RST S/NCounterpartCounterpart S/NMsgsCapture
10-18 22:28 80m - / - RX3ASQ +2 / - 2 Partial capture
10-18 22:24 80m -1 / - F1PBZ - / - 7 ✓ Closing fragment
10-18 22:21 80m - / - DO5HB -6 / - 2 Partial capture
10-18 22:19 80m +7 / -14 IU4UWH -14 / - 4 Partial capture
10-18 22:19 80m - / - DO9BAU +4 / - 11 Partial capture
10-18 22:18 80m +4 / +1 HB9EUP +2 / -5 10 ✓ Full exchange observed
10-13 19:51 80m - / - DO1MGN -12 / - 2 Partial capture
10-13 19:50 80m +1 / - TF4M - / - 3 Partial capture
10-13 19:49 80m 0 / -7 F4JYH -6 / +4 4 ✓ Full exchange observed
10-13 19:48 80m - / -12 DO9POL -8 / - 3 Partial capture
10-13 19:46 80m -7 / - DK1XT - / - 4 Partial capture
10-13 19:44 80m 0 / - DO9POL - / - 3 Partial capture
10-13 19:39 80m -1 / - RV3X - / - 4 Partial capture
10-13 19:37 80m +4 / +7 DO6MFD +4 / +9 4 ✓ Full exchange observed
10-13 19:36 80m - / - DO1MGN -12 / - 3 Partial capture
10-13 19:36 80m - / -16 YO4NF +13 / - 2 Partial capture
10-13 19:35 80m +3 / 0 OK1TRJ +12 / - 4 ✓ Full exchange observed
10-10 16:20 80m -11 / - SN40KZE - / - 3 Partial capture
10-10 16:19 80m - / - DO2XB +8 / - 10 Partial capture
10-10 16:17 80m - / - DG6ITP +8 / - 4 Partial capture
10-09 18:41 80m +3 / - EA5OH - / - 2 Partial capture
10-09 18:32 80m - / -8 S58X +4 / - 3 ✓ Closing fragment
10-09 18:31 80m -10 / - RT3K/P - / +7 3 ✓ Closing fragment
10-09 18:29 80m - / - DL9KM -8 / - 4 Partial capture
10-09 18:25 80m -11 / -15 SQ5ANT +6 / +1 7 ✓ Full exchange observed
10-09 18:22 80m +1 / -22 IN3LTL -10 / -9 4 ✓ Full exchange observed
10-09 18:21 80m 0 / -8 OM3RP +21 / +9 5 ✓ Full exchange observed
10-08 19:54 80m - / - DB100FT -3 / - 2 Partial capture
10-08 19:54 80m - / -13 DO3BOX -9 / - 4 Partial capture
10-08 19:53 80m - / -5 PA4BEN -6 / - 2 ✓ Closing fragment
10-08 19:46 80m -12 / - OI5AY - / - 2 Partial capture
10-08 19:44 80m -8 / -14 SQ2RAD +10 / - 5 ✓ Full exchange observed
10-08 19:17 80m -8 / -7 PA7F -2 / - 3 Partial capture
10-08 19:10 80m -10 / - ER5GB - / - 2 Partial capture
10-05 17:38 80m - / -14 HG0NPJ +2 / - 4 Partial capture
10-05 17:33 80m -15 / -9 PG7VG -10 / -7 4 ✓ Full exchange observed
10-04 20:25 80m -7 / - RO2E/M - / - 2 Partial capture
10-04 20:23 80m - / - DC7MA -10 / - 2 Partial capture
10-04 20:23 80m - / - DO9JTR -6 / - 25 Partial capture
10-04 20:22 80m - / -10 DD7EE +4 / - 2 ✓ Closing fragment
10-04 20:21 80m - / -13 YO4NF +14 / - 2 Partial capture
10-04 20:20 80m -8 / -11 M0KHR -8 / +2 7 ✓ Full exchange observed
10-02 21:15 40m - / -12 YO4NF +2 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m
UTC    dB Audio  Message
222345  +2 2402  DO3RST DO9BAU JO62
222415  +5 2582  F1PBZ DO3RST JO31
222415  +4 2402  DO3RST DO9BAU JO62
222445  +5 2582  F1PBZ DO3RST JO31
222445  +0 2402  DO3RST DO9BAU JO62
222515  +0 2582  F1PBZ DO3RST JO31 (x5)
222815  -1 2582  CQ DO3RST JO31
222830  +3 1109  DO3RST RX3ASQ KO95
222830  -5 2581  DO3RST OH4LRP KP32
222845  -4 2582  CQ DO3RST JO31
222900  +2 1109  DO3RST RX3ASQ KO95
10m
UTC    dB Audio  Message
162445 -23 2175  DO3RST PS8ARP GI84
40m
UTC    dB Audio  Message
211545  +3  602  DO3RST YO4NF -12 (x2)
160m
UTC    dB Audio  Message
210800 -16  705  CQ DO3RST JO31                        a1 (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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