HB9VIV — 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: JN36

Receiver-side FT8 activity involving HB9VIV, decoded by SO8OO in southeastern Poland. 97 FT8 messages attributed to this token as transmitter, on 20m, across 5 UTC dates in the available aggregate history. Observed between 2026-07-23 and 2026-08-27.

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 97 FT8 messages attributed to HB9VIV as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Several six-hour UTC windows tied for the largest share (87%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (64%); the estimated median was -4 dB.

Overview

97
Messages attributed
5
UTC dates decoded
15
Active 15-min windows
-4 dB
Estimated median S/N

Bands

20m · 97
First attributed message: 2026-07-23
Last attributed message: 2026-08-27 08:24 UTC

Observed FT8 message patterns

Attributed sample
97 messages
Active dates
5 UTC dates
Estimated median S/N
-4 dB
Estimated 10th-90th percentile
-17 to +9 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 12, moderate (-15 to -9 dB) 23, strong (≥ -8 dB) 62.

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.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with HB9VIV in decoded directed-looking exchanges:

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 HB9VIV

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
JN36 · 54 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,158 km (approx.)
Last such locator decoded
2026-08-27 08:21 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 UTCBandHB9VIV S/NCounterpartCounterpart S/NMsgsCapture
08-27 17:40 40m - / -10 F1PBZ -6 / - 2 ✓ Closing fragment
08-27 17:38 40m - / - IZ4AIF +7 / - 3 ✓ Closing fragment
08-27 17:38 40m - / - R2EC +8 / - 2 Partial capture
08-27 08:23 20m +6 / - EA5DQW - / -9 3 Partial capture
08-27 08:21 20m +4 / - SQ5WBW - / -8 2 ✓ Closing fragment
08-27 08:13 20m - / -17 OS4K 0 / - 2 Partial capture
08-27 08:12 20m +4 / -17 ON1JP -2 / -25 7 ✓ Full exchange observed
08-27 08:09 20m +6 / - MW8KUZ - / -12 6 ✓ Closing fragment
08-27 08:06 20m +10 / - PA0LDE -2 / -4 3 Partial capture
08-27 08:06 20m +8 / +2 UT7UJ +21 / +3 3 Partial capture
08-27 08:05 20m +10 / - MM3RCR - / +3 3 ✓ Closing fragment
08-27 07:20 20m +2 / 0 MI7RDK -5 / +1 4 ✓ Full exchange observed
08-27 07:20 20m - / - RV6F -1 / - 5 Partial capture
08-27 07:15 20m +2 / - SP9XG - / -10 2 ✓ Closing fragment
08-27 07:10 20m +6 / - YO9PH - / +7 2 ✓ Closing fragment
08-27 06:23 20m +9 / - K0JV - / - 10 Partial capture
08-27 06:09 20m - / -17 RY3F +12 / - 3 Partial capture
08-27 06:07 20m -5 / - SM7MBG - / -25 4 ✓ Closing fragment
08-27 05:40 20m -10 / - RI1FJL - / -13 10 ✓ Closing fragment
08-25 16:47 20m - / -13 RN6MA +19 / - 3 Partial capture
08-23 19:52 20m - / -7 JA8DIV -10 / - 2 Partial capture
08-23 19:48 20m -12 / - XU7O - / - 4 Partial capture
08-23 19:28 20m - / 0 F1PPH +3 / - 3 Partial capture
08-20 09:50 20m -8 / - OH1LA - / -12 3 Partial capture
08-20 09:47 20m -10 / - OH1LA - / -12 2 Partial capture
08-20 09:41 20m -14 / -8 OH6DHM -2 / -25 5 ✓ Full exchange observed
08-20 09:37 20m -2 / -8 RU4SS -4 / +3 5 ✓ Full exchange observed
08-20 09:36 20m -16 / - 4D0DRD - / -11 2 Partial capture
08-11 07:54 20m - / -21 R9AL -13 / - 2 Partial capture
08-11 07:53 20m - / - RV6F -8 / - 5 Partial capture
08-11 07:49 20m -15 / - GM4ZTO - / -10 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
173800 +10 2426  HB9VIV R2EC KO82
173800  +6 2224  HB9VIV IZ4AIF JN54
173830  +5 2426  HB9VIV R2EC KO82
173830  +7 2224  HB9VIV IZ4AIF R+21 (x2)
174030  -6  488  HB9VIV F1PBZ -10 (x2)
20m 
UTC    dB Audio  Message
081315  +2 1861  HB9VIV OS4K -17 (x2)
081345  +2 1414  HB9VIV ON1JP -17
081400  +6  758  CQ HB9VIV JN36
081415  -2 1414  HB9VIV ON1JP -17
081430  +5  758  ON1JP HB9VIV R-25
081445  -6 1414  HB9VIV ON1JP -17
081500  +4  758  ON1JP HB9VIV R-25 (x2)
082100  +5  758  CQ HB9VIV JN36
082130  +4  758  SQ5WBW HB9VIV -08 (x2)
082330  +3  758  EA5DQW HB9VIV -09 (x3)

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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