F4HSB — 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: France Most frequent locator attributed to this token: JN37

Receiver-side FT8 activity involving F4HSB, decoded by SO8OO in southeastern Poland. 18,830 FT8 messages attributed to this token as transmitter, on 60m, 40m, 20m, 10m, across 98 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 18,830 FT8 messages attributed to F4HSB as the transmitting token by decoded message structure across 98 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (83%), followed by 60 m (9%) and 40 m (7%). The busiest six-hour window was 06:00-12:00 UTC, containing 46% of decodes. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (63%); the estimated median was -18 dB.

Overview

18,830
Messages attributed
98
UTC dates decoded
1,907
Active 15-min windows
-18 dB
Estimated median S/N

Bands

First attributed message: 2026-06-06
Last attributed message: 2026-10-22 05:59 UTC

Observed FT8 message patterns

Attributed sample
18,830 messages
Active dates
98 UTC dates
Estimated median S/N
-18 dB
Estimated 10th-90th percentile
-24 to -5.1 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 11,916, moderate (-15 to -9 dB) 3,951, strong (≥ -8 dB) 2,963.

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 F4HSB

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
JN37 · 12,989 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,116 km (approx.)
Last such locator decoded
2026-10-22 05:59 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 UTCBandF4HSB S/NCounterpartCounterpart S/NMsgsCapture
10-22 05:58 60m -20 / - SP2EWQ - / - 2 Partial capture
10-22 05:55 60m -23 / - OH3NAO -24 / -5 3 ✓ Closing observed
10-22 05:47 60m -23 / -4 EB3JT -16 / - 4 ✓ Full exchange observed
10-22 05:46 60m -20 / -9 F5RMK -10 / +5 3 ✓ Full exchange observed
10-22 05:38 60m -21 / -23 PA3RO -16 / -17 6 Partial capture
10-22 05:35 60m - / -3 IT9VCE -5 / - 5 ✓ Closing fragment
10-22 05:33 60m -23 / - EA1HTF - / +9 2 ✓ Closing fragment
10-22 05:31 60m -22 / -1 EA5BM -15 / - 5 ✓ Full exchange observed
10-22 05:28 60m -22 / - <...> - / - 2 Partial capture
10-22 05:25 60m -23 / - NP3MR - / - 4 Partial capture
10-22 05:24 60m -19 / - ON1JP -15 / - 2 ✓ Closing observed
10-22 05:00 40m - / -7 TO4A +3 / - 2 Partial capture
10-21 06:11 60m - / -8 DF4WQ -13 / - 3 ✓ Closing fragment
10-21 06:08 60m -20 / -1 PA4PA +11 / - 5 ✓ Full exchange observed
10-21 06:06 60m -18 / -7 DH9DR 0 / - 4 ✓ Closing observed
10-21 06:04 60m -17 / - SP6PCL -12 / -1 4 ✓ Closing observed
10-21 06:03 60m -18 / +8 G4ATX +2 / - 5 ✓ Full exchange observed
10-21 06:00 60m -18 / 0 DK7UY +4 / - 7 ✓ Full exchange observed
10-21 05:59 60m -14 / - DG4HAD - / - 2 Partial capture
10-21 05:57 60m -17 / -4 IK4CBO -8 / - 3 ✓ Closing observed
10-21 05:47 40m -11 / - EA5ET -13 / - 2 Partial capture
10-21 05:36 40m -14 / - OM3PC - / - 2 Partial capture
10-20 05:39 60m -19 / - EA8AE - / -4 3 ✓ Closing fragment
10-20 05:38 60m -18 / -14 ES2AJ -2 / +9 6 ✓ Full exchange observed
10-20 05:15 40m -15 / -9 G1LQT -16 / +8 4 ✓ Full exchange observed
10-20 05:04 40m - / -12 G1LQT -10 / - 2 Partial capture
10-20 04:56 40m -13 / -8 F4FDR -13 / - 2 Partial capture
10-20 04:55 40m -18 / - HA7TM - / +6 2 ✓ Closing fragment
10-20 04:49 40m -18 / - EW4DX - / -9 2 Partial capture
10-20 04:46 40m -16 / - OM8FR - / - 2 ✓ Closing fragment
10-20 04:44 40m -15 / -12 5B4ALJ -1 / -6 4 ✓ Full exchange observed
10-20 04:32 40m - / -9 G6HUI -17 / - 3 ✓ Closing fragment
10-20 04:22 40m -15 / - R2EA/M - / - 5 Partial capture
10-19 05:30 60m -21 / -11 HA8RC -17 / - 3 ✓ Closing observed
10-19 05:28 60m - / -25 DL6NDN +4 / - 2 ✓ Closing fragment
10-19 05:19 60m - / -8 EB1LA -4 / - 4 ✓ Closing fragment
10-19 05:17 60m - / 0 EA3CU -10 / - 3 ✓ Closing fragment
10-19 05:13 60m - / -5 IT9JNR +2 / - 2 ✓ Closing fragment
10-19 05:10 60m - / -6 OV9A -9 / - 2 ✓ Closing fragment
10-19 05:08 60m - / -6 SP5EXA +6 / - 3 ✓ Closing fragment
10-19 05:07 60m - / -14 LZ2HN +4 / - 2 ✓ Closing fragment
10-18 14:44 40m - / -12 SP5ROM -2 / - 3 Partial capture
10-18 14:42 40m - / -10 DK8EW -2 / - 2 ✓ Closing fragment
10-18 14:29 40m - / +8 DB1RLP -10 / - 2 ✓ Closing fragment
10-18 14:17 40m -22 / -16 DL2USR -11 / - 2 Partial capture
10-18 14:08 40m - / -3 DK1XAM -2 / - 2 ✓ Closing fragment
10-18 14:07 40m - / -1 DJ0BS -9 / - 2 ✓ Closing fragment
10-18 14:05 40m -21 / -9 PD7JLP -10 / +8 3 ✓ Full exchange observed
10-18 14:04 40m - / -10 HA3TBL -16 / - 2 ✓ Closing fragment
10-18 13:55 40m - / -1 DM4IG +4 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

60m
UTC    dB Audio  Message
054530 -21 1569  VE2CKW F4HSB JN37
054615  -9 1836  F4HSB F5RMK -09
054630 -20 1569  F5RMK F4HSB R+05
054645 -11 1836  F4HSB F5RMK RR73
054715 -15 1570  F4HSB EB3JT JN01
054730 -23 1569  EB3JT F4HSB +20
054745 -17 1570  F4HSB EB3JT R-04 (x2)
055230 -24 1569  CQ F4HSB JN37
055515 -24 1680  F4HSB OH3NAO KP21
055530 -24 1569  OH3NAO F4HSB -05 (x2)
055800 -20 1568  SP2EWQ F4HSB JN37 (x2)
055930 -24 1568  IK3FHW F4HSB JN37
40m
UTC    dB Audio  Message
052730 -21 1567  CQ F4HSB JN37 (x5)
053645 -11 1595  OM3PC F4HSB JN37 (x2)
053945 -18 1591  EA7R F4HSB JN37
054015 -14 1590  SV2BXH F4HSB JN37
054715 -11 1583  EA5ET F4HSB JN37
054900 -13 1583  F4HSB EA5ET +11
055215 -17 1579  K3DY F4HSB JN37
050030  +3  388  F4HSB TO4A -07 (x2)
051630 -13 1048  F4HSB LZ2PAJ -12
80m
UTC    dB Audio  Message
153115  +0 2770  F4HSB IW4EGP -19 (x2)
164930 -24 1613  F4HSB DJ8TX RR73 (x2)
165330 +12  848  F4HSB OK1AAM -24 (x2)
192615 -17  808  F4HSB DO5HOK -18
192845  -2 1721  F4HSB F6AOJ RR73
155400 -19 2282  F4HSB DH0ZAL -22
192545  +5 2826  F4HSB DL7ACA -15 (x2)
192715  -7 1335  F4HSB DB100FT -14 (x2)
182930  -3 1790  F4HSB UA4FEN -05
182930 -11 2774  <F4HSB> R5BM/M RR73
20m
UTC    dB Audio  Message
140315 -12 1812  2E1HAT F4HSB JN37 (x3)
140615  -4 1812  <...> F4HSB JN37 (x4)
140845  +2 1812  RL3T F4HSB JN37
140900  +2 1866  F4HSB RL3T -18 (x3)
141045  +1 1812  RL3T F4HSB R+10
141130 +18 2967  F4HSB F4HDR -01 (x2)
141215  -9 1812  F4HDR F4HSB 73
10m
UTC    dB Audio  Message
102815 -16 1881  DL5DQZ F4HSB JN37 (x3)
102945 -17 1881  LZ1KU F4HSB JN37 (x3)
103115 -18 1881  LZ4VR F4HSB JN37 (x3)
103245 -20 1881  E75W F4HSB JN37
103300 -12 2294  F4HSB E75W +02
103315 -17 1881  E75W F4HSB R+20
103330 -10 2294  F4HSB E75W RR73
103345 -20 1880  E75W F4HSB 73
104015 -13 1880  M7CWF F4HSB 73

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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