DO5HB — 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: JO40

Receiver-side FT8 activity involving DO5HB, decoded by SO8OO in southeastern Poland. 2,020 FT8 messages attributed to this token as transmitter, on 160m, 80m, across 39 UTC dates in the available aggregate history. Observed between 2026-07-04 and 2026-10-21.

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 2,020 FT8 messages attributed to DO5HB as the transmitting token by decoded message structure across 39 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (92%), followed by 160 m (8%). Most decodes (93%) 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 -8.1 dB.

Overview

2,020
Messages attributed
39
UTC dates decoded
249
Active 15-min windows
-8.1 dB
Estimated median S/N

Bands

First attributed message: 2026-07-04
Last attributed message: 2026-10-21 08:23 UTC

Observed FT8 message patterns

Attributed sample
2,020 messages
Active dates
39 UTC dates
Estimated median S/N
-8.1 dB
Estimated 10th-90th percentile
-18 to +1 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 333, moderate (-15 to -9 dB) 660, strong (≥ -8 dB) 1,027.

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 DO5HB

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
JO40 · 1,449 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
911 km (approx.)
Last such locator decoded
2026-10-21 08:22 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 UTCBandDO5HB S/NCounterpartCounterpart S/NMsgsCapture
10-21 08:22 80m -10 / - DF5DY -8 / - 3 ✓ Closing observed
10-21 08:06 80m -21 / - ON6AA - / - 3 Partial capture
10-21 07:08 80m -14 / -4 DJ1TU -10 / +10 5 ✓ Full exchange observed
10-21 07:08 80m -18 / -4 OK8DCC -7 / -9 6 ✓ Full exchange observed
10-21 07:04 80m -18 / - ON4KEB - / - 2 Partial capture
10-21 07:03 80m -17 / - M9HEB - / -3 3 ✓ Closing fragment
10-18 22:21 80m -6 / - DO3RST - / - 2 Partial capture
10-18 22:17 80m -7 / -1 DC4CP +4 / -5 5 ✓ Full exchange observed
10-18 22:15 80m -7 / -3 SP4TXI +16 / +3 5 ✓ Full exchange observed
10-18 22:14 80m -8 / -24 SQ9RIM +18 / - 9 Partial capture
10-18 22:12 80m -8 / +3 HB9EBM +14 / +1 5 ✓ Full exchange observed
10-18 22:02 80m -2 / -2 DC4CP -2 / - 7 Partial capture
10-18 21:37 80m -12 / - ON7IO - / - 2 Partial capture
10-18 21:33 80m - / - DH5SA -19 / - 3 Partial capture
10-18 21:20 80m - / - DH5SA -20 / - 2 Partial capture
10-18 21:16 80m +2 / - OY1HJ - / - 2 Partial capture
10-18 21:15 80m -6 / - BA7IO - / - 2 Partial capture
10-18 21:13 80m -5 / - JH5FXP - / - 2 Partial capture
10-18 21:10 80m - / -2 DA125RH -7 / - 3 Partial capture
10-18 21:10 80m -13 / - II4JOTA - / - 3 Partial capture
10-18 21:09 80m -14 / - VR2ZXP - / - 2 Partial capture
10-18 20:58 80m -8 / - F4JXW - / - 2 Partial capture
10-18 20:56 80m -16 / - G8TJQ - / - 2 Partial capture
10-18 20:44 80m -24 / - JA9PPC - / - 3 Partial capture
10-18 08:43 80m - / - DL1FAM -20 / - 2 ✓ Closing fragment
10-18 08:39 80m - / -19 9A5E -13 / - 2 Partial capture
10-17 23:56 80m -8 / -9 DG6VC +1 / -17 15 ✓ Full exchange observed
10-17 23:54 80m -4 / -2 GB5RS +13 / +7 6 ✓ Full exchange observed
10-17 23:34 80m -4 / -5 G0KUC -5 / -8 5 ✓ Full exchange observed
10-17 23:34 80m -2 / -6 M0WDT +3 / +7 14 Partial capture
10-17 23:26 80m -4 / -1 HB9HRR -9 / -14 9 ✓ Full exchange observed
10-17 23:26 80m +4 / - ON4MAP -8 / -10 7 Partial capture
10-17 23:20 80m -2 / - M0WDT - / - 3 Partial capture
10-17 23:14 80m - / -12 MW9LQA +7 / - 2 ✓ Closing fragment
10-17 23:09 80m - / -6 F1TYP -2 / - 3 Partial capture
10-17 23:00 80m -8 / - SP1IWC - / -8 4 ✓ Closing fragment
10-17 20:25 80m - / -1 PE1RF/J -6 / - 3 Partial capture
10-17 20:23 80m -14 / - F4AYI - / - 2 Partial capture
10-17 20:22 80m -14 / - PE1RF/J - / - 3 Partial capture
10-17 20:21 80m - / - PE0RVA -2 / - 2 ✓ Closing fragment
10-17 20:19 80m 0 / - G4UJS - / - 2 Partial capture
10-17 20:13 80m -10 / - DO5HCS - / -14 4 ✓ Closing fragment
10-16 22:08 80m -10 / - RD9M/3 - / -2 2 Partial capture
10-16 22:05 80m - / -8 SP3HUU +16 / - 2 ✓ Closing fragment
10-16 22:02 80m -15 / -11 EI4JFB -2 / -9 4 ✓ Full exchange observed
10-14 20:49 80m - / - IK2EST -6 / - 2 Partial capture
10-14 20:46 80m -19 / -4 DK2AJ +5 / -6 4 ✓ Full exchange observed
10-14 20:43 80m - / -16 SP2GJI +14 / - 3 ✓ Closing fragment
10-14 20:14 80m - / -11 DM3ER -2 / - 2 Partial capture
10-05 22:30 80m -4 / - US0QV - / - 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
072030 -20 1871  CQ DO5HB JO40 (x8)
080600 -24 1871  ON6AA DO5HB JO40 (x3)
081930 -22 2141  SX37VER DO5HB R-20
082230 -11  443  DF5DY DO5HB JO40
082315  -8  541  DO5HB DF5DY RRR
082330  -9  443  DF5DY DO5HB 73
160m
UTC    dB Audio  Message
210815 -24 1158  F1PBZ DO5HB R-13
210830 -14  857  DO5HB G0THY IO91
210830 -11 2147  DO5HB F1PBZ RR73
210845 -24 1158  F1PBZ DO5HB 73
210900 -12  857  DO5HB G0THY IO91
210915 -24 1157  G0THY DO5HB -10
210930 -16  857  DO5HB G0THY R-20 (x2)
211045 +12 1331  DO5HB SP3CUG JO82 (x7)

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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