HB9RYB — 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: Switzerland Most frequent locator attributed to this token: JN47

Receiver-side FT8 activity involving HB9RYB, decoded by SO8OO in southeastern Poland. 1,200 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 95 UTC dates in the available aggregate history. Observed between 2026-06-06 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 1,200 FT8 messages attributed to HB9RYB as the transmitting token by decoded message structure across 95 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (48%), followed by 80 m (33%) and 40 m (13%). Most decodes (68%) fell within the six-hour window 18:00-00:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

1,200
Messages attributed
95
UTC dates decoded
308
Active 15-min windows
-11 dB
Estimated median S/N

Bands

First attributed message: 2026-06-06
Last attributed message: 2026-10-23 20:38 UTC

Observed FT8 message patterns

Attributed sample
1,200 messages
Active dates
95 UTC dates
Estimated median S/N
-11 dB
Estimated 10th-90th percentile
-20 to -1 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 362, moderate (-15 to -9 dB) 384, strong (≥ -8 dB) 454.

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 HB9RYB

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
JN47 · 798 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
975 km (approx.)
Last such locator decoded
2026-10-23 20:38 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 UTCBandHB9RYB S/NCounterpartCounterpart S/NMsgsCapture
10-21 22:07 80m -3 / -6 ON1BH +5 / - 3 ✓ Closing observed
10-21 22:06 80m -2 / - F1IQH - / -8 2 ✓ Closing fragment
10-21 22:03 80m -5 / -4 OM7AMA +19 / +1 7 ✓ Full exchange observed
10-21 21:54 80m 0 / - DO6SHB +11 / +5 6 Partial capture
10-21 21:52 80m -1 / -20 M9TAM -7 / -4 2 Partial capture
10-21 21:48 80m +4 / - LU3OZ - / - 2 Partial capture
10-21 20:36 80m -6 / -7 DL1DV +2 / -16 6 ✓ Full exchange observed
10-21 20:33 80m -9 / -15 T77RN -1 / - 3 ✓ Closing observed
10-21 20:16 80m -8 / -16 SP9UPH +2 / -8 5 ✓ Full exchange observed
10-21 20:15 80m - / -16 SN0EG -2 / - 3 ✓ Closing fragment
10-21 19:31 80m - / -17 IK1MJK -4 / - 2 ✓ Closing fragment
10-21 19:30 80m - / - OE9RWH +1 / - 4 Partial capture
10-21 19:21 80m - / -13 IK1MJK 0 / - 2 ✓ Closing fragment
10-21 19:14 80m -14 / +6 DA6DN -4 / -3 4 ✓ Full exchange observed
10-21 19:01 80m - / -8 DO2BBC +4 / - 3 ✓ Closing fragment
10-21 18:47 80m -11 / -10 OE3IPU +17 / - 4 ✓ Closing observed
10-21 06:15 80m -6 / - DA1ST - / -11 2 ✓ Closing fragment
10-21 06:03 80m - / -7 OE5PEN -2 / - 3 ✓ Closing fragment
10-21 06:00 80m - / -4 PA3CPS +3 / - 3 ✓ Closing fragment
10-21 05:51 80m -9 / -8 DL1FLW +1 / -14 4 ✓ Full exchange observed
10-17 22:20 80m -8 / - HB3YBU - / - 5 Partial capture
10-17 22:17 80m -10 / - OZ6HR +10 / +4 4 ✓ Full exchange observed
10-17 22:09 80m -11 / - DL/N0PNG - / - 10 Partial capture
10-16 21:59 80m -8 / - IW2GTB - / - 7 Partial capture
10-16 21:57 80m -14 / - DD8BA - / -6 2 ✓ Closing fragment
10-16 21:57 80m - / - M9OOS -7 / - 3 Partial capture
10-11 21:00 80m -14 / - YL2SW - / - 4 Partial capture
10-11 20:17 80m -18 / -2 ON5MX -9 / -11 3 ✓ Full exchange observed
10-10 22:25 80m -2 / - UX7QV - / -15 4 Partial capture
10-10 22:21 80m -4 / -9 UT5EL +2 / +5 5 ✓ Full exchange observed
10-10 21:03 80m - / -10 4Z5AV -6 / - 2 Partial capture
10-10 20:49 80m - / -2 OZ1HPS +6 / - 2 ✓ Closing fragment
10-09 22:23 80m - / -21 OR5T +6 / - 3 ✓ Closing fragment
10-08 22:15 80m +2 / -11 EI4JFB +3 / -11 4 ✓ Full exchange observed
10-08 21:10 80m -7 / - I4USC - / - 10 Partial capture
10-08 20:58 80m -8 / - TM47CDXC - / - 8 Partial capture
10-08 20:55 80m - / +3 IQ2AAH -15 / - 3 ✓ Closing fragment
10-08 19:47 80m -12 / - EA5FGC - / - 7 Partial capture
10-07 22:31 80m -14 / -13 I1WXY -4 / -3 7 ✓ Full exchange observed
10-07 22:29 80m -8 / - OR80AF - / - 2 Partial capture
10-07 22:27 80m -11 / - SP5DFK/QRP - / - 5 Partial capture
10-07 22:23 80m -3 / -8 SQ2RAD -3 / - 6 ✓ Closing observed
10-07 22:17 80m - / -12 DO5HOK -2 / - 2 ✓ Closing fragment
10-07 22:11 80m -7 / -13 IU5HIU -13 / -13 3 ✓ Full exchange observed
10-07 22:08 80m - / -4 DO5UH/P +6 / - 3 ✓ Closing fragment
10-07 22:06 80m - / - RX3ASQ -4 / - 2 Partial capture
10-07 21:59 80m +3 / -10 I8OHQ +4 / -10 4 ✓ Full exchange observed
10-07 21:52 80m -2 / - F4EGM -2 / -5 3 ✓ Closing observed
10-07 21:46 80m - / - RX3ASQ +1 / - 2 Partial capture
10-07 21:43 80m - / -11 IU3FVJ -6 / - 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
215845  -6 1671  DO6SHB HB9RYB +05
220130 -13 1671  TA7ARH HB9RYB JN47
220330  -3 1671  OM7AMA HB9RYB JN47 (x3)
220445 +19  806  HB9RYB OM7AMA -04
220500  -7 1672  OM7AMA HB9RYB R+01
220515 +19  806  HB9RYB OM7AMA RR73
220530  -2 1671  OM7AMA HB9RYB 73
220630  -2 1671  F1IQH HB9RYB -08 (x2)
220715  +5  867  HB9RYB ON1BH -06 (x2)
220800  -3 1671  ON1BH HB9RYB 73
203830 -14 1234  HA8IB HB9RYB JN47
160m
UTC    dB Audio  Message
215830  +8 2402  HB9RYB F1PBZ -06 (x2)
215915 -21 2402  F1PBZ HB9RYB 73
20m
UTC    dB Audio  Message
094530  -9  270  HB9RYB RA6OY KN88
094545 +10  964  SH5RJX HB9RYB RR73
094600  +0  270  HB9RYB RA6OY KN88 (x2)
094700 -17  963  HB9RYB TA3F KM38 (x7)
172100  -1  454  IU7VOL HB9RYB JN47 (x4)
10m
UTC    dB Audio  Message
174115 -10 2505  OZ1AXG HB9RYB 73
174200 -14 2505  HB9RYB EB3JT JN01 (x5)

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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