ON9TT — 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: Belgium Most frequent locator attributed to this token: JO21

Receiver-side FT8 activity involving ON9TT, decoded by SO8OO in southeastern Poland. 140 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 16 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-11-02.

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 140 FT8 messages attributed to ON9TT as the transmitting token by decoded message structure across 16 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (37%), followed by 20 m (34%) and 80 m (19%). Most decodes (56%) fell within the six-hour window 08:00-14:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.

Overview

140
Messages attributed
16
UTC dates decoded
38
Active 15-min windows
-12 dB
Estimated median S/N

Bands

80m · 27 40m · 13 20m · 48 10m · 52
First attributed message: 2026-06-08
Last attributed message: 2026-11-02 18:48 UTC

Observed FT8 message patterns

Attributed sample
140 messages
Active dates
16 UTC dates
Estimated median S/N
-12 dB
Estimated 10th-90th percentile
-19 to -4 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 37, moderate (-15 to -9 dB) 67, strong (≥ -8 dB) 36.

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 ON9TT 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 ON9TT

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
JO21 · 79 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,192 km (approx.)
Last such locator decoded
2026-11-02 18:15 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 UTCBandON9TT S/NCounterpartCounterpart S/NMsgsCapture
11-05 15:15 40m - / - DJ2MS -17 / - 2 ✓ Closing fragment
11-05 11:12 40m - / - DL1PAB -7 / - 7 Partial capture
11-05 11:08 40m - / -18 DH7ZP -13 / - 3 ✓ Closing fragment
11-05 10:57 40m - / -18 DL4GCJ -2 / - 4 ✓ Closing fragment
11-05 10:55 40m - / - SP5EXA +6 / - 4 Partial capture
11-05 10:35 40m - / - DL4GCJ -2 / - 2 Partial capture
11-02 20:54 80m - / -21 S50XX +4 / - 8 Partial capture
11-02 20:46 80m - / -21 IQ4JO +12 / - 2 ✓ Closing fragment
11-02 20:37 80m - / - DK4OX -2 / - 2 Partial capture
11-02 20:28 80m - / -12 DO1ID +1 / - 5 Partial capture
11-02 20:27 80m - / - OK2CNI +11 / - 7 Partial capture
11-02 19:34 80m - / - DL1FRH -12 / - 2 Partial capture
11-02 18:16 40m -12 / - HF5A - / +3 2 Partial capture
11-02 16:43 40m - / -18 3A2LF -13 / - 3 Partial capture
11-02 15:32 40m - / -9 9A6NCC +7 / - 3 ✓ Closing fragment
11-02 15:21 40m - / -2 DL6KBV -10 / - 3 ✓ Closing fragment
11-02 14:51 40m - / - F1POK -14 / - 2 ✓ Closing fragment
11-02 14:43 40m - / 0 OE3KLU +17 / - 2 ✓ Closing fragment
10-09 19:36 80m - / -7 DF5JU -13 / - 2 ✓ Closing fragment
10-09 19:24 80m - / - SQ3HS +4 / - 2 Partial capture
10-09 19:22 80m - / +7 DA6WA -12 / - 5 ✓ Closing fragment
10-09 18:53 80m - / - DA6NEL +4 / - 3 Partial capture
10-09 18:38 80m - / -15 SQ6NSG +16 / - 3 ✓ Closing fragment
10-09 18:35 80m - / -9 DO7MEW -10 / - 2 ✓ Closing fragment
10-09 18:27 80m -15 / -15 DO3LZ -6 / +9 4 Partial capture
10-09 18:23 80m - / -16 DL2LTH -3 / - 5 ✓ Closing fragment
10-09 18:22 80m -10 / - M9NRS - / -9 2 ✓ Closing fragment
10-09 18:16 80m - / +3 DO1OAS -2 / - 3 ✓ Closing fragment
10-09 17:57 80m -14 / -11 9A5E +12 / - 4 ✓ Closing observed
10-09 17:54 80m -12 / - ON1CH - / +6 2 ✓ Closing fragment
10-09 11:05 40m - / -5 OH3MB -2 / - 2 ✓ Closing fragment
10-09 10:59 40m - / - OH3MB -4 / - 2 Partial capture
10-09 10:22 40m - / +2 OS7P -9 / - 2 ✓ Closing fragment
10-09 10:19 40m - / -4 DL7FE -11 / - 3 ✓ Closing fragment
09-04 07:18 40m - / -8 OV6ZM -10 / - 2 ✓ Closing fragment
09-04 07:06 40m - / -9 DM5KK +13 / - 3 ✓ Closing fragment
09-04 07:03 40m -16 / -5 DF0AWG +4 / - 3 ✓ Full exchange observed
08-29 17:01 40m - / 0 DF8RU +8 / - 2 ✓ Closing fragment
08-22 08:11 10m -14 / -6 SV2CLJ -6 / +1 3 ✓ Full exchange observed
08-19 06:52 10m - / - DO1FZL -12 / - 10 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
105830  -2 2341  ON9TT DL4GCJ R-18 (x2)
110830 -10 1130  ON9TT DH7ZP JO40 (x3)
111200  -8  973  ON9TT DL1PAB JO62 (x7)
150230 -11 1130  ON9TT YL3ATJ KO27
151545 -19 1067  ON9TT DJ2MS JO30 (x2)
80m 
UTC    dB Audio  Message
203030 +14 2690  ON9TT OK2CNI JN79
203700  -7 1620  ON9TT DK4OX JO52 (x2)
204130  +5  238  ON9TT DO1ID -01
204630 +13 2568  ON9TT IQ4JO R-21 (x2)
205445  +7 1073  ON9TT S50XX JN65 (x8)
210400 -13  611  ON9TT PC40EUDXF -07
10m 
UTC    dB Audio  Message
065230 -14 1210  ON9TT DO1FZL JO50
065245 -16 1210  CQ ON9TT JO21                         a1
065300 -12 1210  ON9TT DO1FZL JO50 (x2)
065345 -15 1211  CQ ON9TT JO21
065400 -12 1210  ON9TT DO1FZL JO50 (x7)
081100  -5  568  ON9TT SV2CLJ -06
081115 -14  876  SV2CLJ ON9TT R+01
081130  -6  568  ON9TT SV2CLJ RR73

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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