YB7IBR — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Indonesia Most frequent locator attributed to this token: OI77

Receiver-side FT8 activity involving YB7IBR, decoded by SO8OO in southeastern Poland. 90 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-06-11 and 2026-09-15.

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 90 FT8 messages attributed to YB7IBR as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (72%), followed by 160 m (18%) and 20 m (6%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.

Overview

90
Messages attributed
3
UTC dates decoded
8
Active 15-min windows
-13 dB
Estimated median S/N

Bands

160m · 16 80m · 65 40m · 4 20m · 5
First attributed message: 2026-06-11
Last attributed message: 2026-09-15 15:50 UTC

Observed FT8 message patterns

Attributed sample
90 messages
Active dates
3 UTC dates
Estimated median S/N
-13 dB
Estimated 10th-90th percentile
-21 to -9 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 31, moderate (-15 to -9 dB) 52, strong (≥ -8 dB) 7.

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 YB7IBR in decoded directed-looking exchanges:

Most frequent locator attributed to YB7IBR

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
OI77 · 8 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
10,450 km (approx.)
Last such locator decoded
2026-09-15 15:49 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 UTCBandYB7IBR S/NCounterpartCounterpart S/NMsgsCapture
09-20 17:26 80m - / - HB9BLQ +9 / - 3 Partial capture
09-20 17:25 80m - / - OE3DSB +18 / - 5 Partial capture
09-20 17:24 80m - / -13 HB9AZZ +8 / - 4 ✓ Closing fragment
09-20 17:21 80m - / -25 SM5VSS -3 / - 5 Partial capture
09-20 17:21 80m - / - OE3DSB +19 / - 2 Partial capture
09-20 17:20 80m - / -18 ON4IQ +11 / - 7 ✓ Closing fragment
09-20 17:18 80m - / -16 DL7VEE +22 / - 3 ✓ Closing fragment
09-20 17:14 80m - / - SM5VSS -5 / - 3 Partial capture
09-20 17:14 80m - / - DL6ZXG -6 / - 2 Partial capture
09-20 17:14 80m - / -9 HB9ALO -11 / - 7 ✓ Closing fragment
09-20 17:14 80m - / - ON4IQ +12 / - 5 Partial capture
09-20 17:10 80m - / - HB9ALO -15 / - 3 Partial capture
09-20 17:10 80m - / -13 DF0AWG +4 / - 9 ✓ Closing fragment
09-20 17:10 80m - / - ON4IQ +10 / - 4 Partial capture
09-19 15:35 80m - / - OH4BW -5 / - 5 ✓ Closing fragment
09-15 15:49 40m -14 / - R2FBW - / -23 4 ✓ Closing fragment
09-10 18:02 80m - / -13 OK1YQ +27 / - 3 Partial capture
09-10 18:00 80m - / - UX5UO +5 / - 13 Partial capture
09-10 18:00 80m - / +2 DJ7M +6 / - 2 ✓ Closing fragment
09-04 18:44 160m - / -4 LA1SDX -21 / - 4 ✓ Closing fragment
09-04 17:20 80m - / -20 9K2HN 0 / - 2 ✓ Closing fragment
08-31 16:51 80m - / - OH4BW -9 / - 2 Partial capture
08-09 17:48 80m - / -17 R4WQ -17 / - 3 Partial capture
08-09 17:40 80m - / -19 DL6NDN -5 / - 4 ✓ Closing fragment
08-09 16:08 20m - / - IZ4EKI -14 / - 2 ✓ Closing fragment
08-09 16:02 20m - / - F4NHL -15 / - 8 Partial capture
08-09 15:59 20m - / -10 DB1SN -8 / - 2 Partial capture
08-09 15:57 20m - / - OE2GRN -16 / - 3 Partial capture
08-09 15:54 20m - / - F4NHL -16 / - 7 Partial capture
08-09 15:52 20m - / - DJ0MAB -16 / - 2 Partial capture
08-09 13:49 10m - / - HG1DRC -2 / - 5 Partial capture
08-09 13:47 10m - / - F5SSQ -14 / - 3 Partial capture
08-09 13:44 10m - / -11 R6BH -15 / - 3 ✓ Closing fragment
08-09 13:24 10m - / - RC5F -13 / - 2 ✓ Closing fragment
08-09 13:24 10m - / -12 M0BEW -16 / - 2 Partial capture
08-08 17:39 160m - / - R6KA -13 / - 3 Partial capture
08-07 18:29 80m - / -19 OM1II +5 / - 3 ✓ Closing fragment
08-02 19:54 160m - / - UA3ZNQ -1 / - 4 Partial capture
08-02 19:53 160m - / - UT4WT +4 / - 4 Partial capture
08-02 19:50 160m -9 / -8 UB3IBG -12 / - 6 ✓ Closing observed
08-02 19:49 160m -10 / - JA5CBO - / -7 2 ✓ Closing fragment
08-02 19:49 160m -10 / - RU3OW -1 / -15 5 ✓ Closing observed
08-02 19:48 160m - / - UT4WT +8 / - 2 Partial capture
08-02 19:47 160m -8 / - DG0JK +8 / -19 4 Partial capture
08-02 19:47 160m -10 / - JA3FYC - / -1 2 ✓ Closing fragment
08-02 19:46 160m -11 / -18 UA1AEL -6 / -10 5 ✓ Full exchange observed
08-02 19:46 160m - / - RU3OW +1 / - 2 Partial capture
08-02 19:44 160m -14 / -4 ES6DO -10 / -18 5 ✓ Full exchange observed
08-02 19:40 160m -16 / -3 EW6CB +2 / -8 5 ✓ Full exchange observed
08-02 19:39 80m -20 / -11 ON6LR -8 / - 3 ✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
172315  +9  814  YB7IBR ON4IQ 73
172345  -2 1886  YB7IBR SM5VSS R-25
172345 +10 1542  YB7IBR OZ1HPS JO45
172415  +9 2784  YB7IBR HB9AZZ JN47 (x3)
172545 +18  267  YB7IBR OE3DSB JN78
172545  +8 2784  YB7IBR HB9AZZ 73
172615 +19  267  YB7IBR OE3DSB JN78
172615 +11 2004  YB7IBR HB9BLQ JN46 (x3)
172745 +19  267  YB7IBR OE3DSB JN78 (x3)
40m 
UTC    dB Audio  Message
165830 -13 2278  YB7IBR UA3FO KO94 (x3)
172900  +5  590  YB7IBR S59A -12 (x2)
173530  +0  755  YB7IBR DF2GH JN68 (x3)
225100  -9 1910  YB7IBR R7OP KN98 (x2)
154900 -18 1322  R2FBW YB7IBR OI77 (x4)
160m 
UTC    dB Audio  Message
195315  +3  940  YB7IBR UT4WT KO20 (x3)
195415  +0 1525  YB7IBR UA3ZNQ KO81
195445  +6  940  YB7IBR UT4WT KO20
195445  +4 1508  YB7IBR UA3ZNQ KO81 (x3)
173945 -17 2225  YB7IBR R6KA KN75 (x3)
184430 -22 1719  YB7IBR LA1SDX JP20 (x4)
20m 
UTC    dB Audio  Message
155845 -17 1442  YB7IBR HB9EXE JN47
155945  -8  800  YB7IBR DB1SN JN48 (x2)
160215 -13 1576  YB7IBR F4NHL IN94
160415 -19 1204  YB7IBR IZ4EKI -10
160415 -18 1807  YB7IBR F5DGQ -03
160415 -13 1576  YB7IBR F4NHL IN94 (x7)
160815 -15 1198  YB7IBR IZ4EKI RR73 (x2)
10m 
UTC    dB Audio  Message
132445 -16 1265  YB7IBR M0BEW -18
132545 -12 1521  YB7IBR RC5F 73
133715 -18 1872  YB7IBR R6BH KN84 (x4)
134745 -13 1801  YB7IBR F5SSQ JN06 (x3)
134915  -6 1858  YB7IBR HG1DRC JN86 (x5)
135715 -15 1693  YB7IBR F5SSQ JN06

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.

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