OE7CST — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Austria Most frequent locator attributed to this token: JN57

Receiver-side FT8 activity involving OE7CST, decoded by SO8OO in southeastern Poland. 175 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 8 UTC dates in the available aggregate history. Observed between 2026-06-13 and 2026-08-09.

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 175 FT8 messages attributed to OE7CST as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (55%), followed by 40 m (45%). Most decodes (90%) fell within the six-hour window 12:00-18:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

175
Messages attributed
8
UTC dates decoded
29
Active 15-min windows
-9 dB
Estimated median S/N

Bands

40m · 78 20m · 97
First attributed message: 2026-06-13
Last attributed message: 2026-08-09 15:47 UTC

Observed FT8 message patterns

Attributed sample
175 messages
Active dates
8 UTC dates
Estimated median S/N
-9 dB
Estimated 10th-90th percentile
-17 to -2 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 27, moderate (-15 to -9 dB) 65, strong (≥ -8 dB) 83.

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 OE7CST 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 OE7CST

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
JN57 · 100 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
836 km (approx.)
Last such locator decoded
2026-08-09 15:47 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 UTCBandOE7CST S/NCounterpartCounterpart S/NMsgsCapture
08-09 15:47 20m -7 / - TA6MMI - / - 2 Partial capture
08-09 15:42 20m -14 / - LA8OOA - / -11 4 ✓ Closing fragment
08-09 15:28 20m -14 / - BA3NZ - / - 2 Partial capture
08-09 15:23 20m -6 / - F6DEG - / - 3 Partial capture
08-09 15:22 20m -6 / - BH2WTV - / - 2 Partial capture
08-09 15:19 20m -12 / - YE5TMJ - / - 3 Partial capture
08-09 15:17 20m -6 / - R4FDK - / -14 2 Partial capture
08-09 15:16 20m -13 / - DK8HC - / +2 2 Partial capture
08-09 13:36 20m -15 / - <...> - / -20 6 Partial capture
07-29 13:43 20m -8 / - UR4QWW - / -19 2 Partial capture
07-29 13:40 20m -12 / - PA7CV - / - 2 Partial capture
07-26 14:13 20m -18 / - SP9D - / +8 2 Partial capture
07-26 14:12 20m -12 / - CN2DX - / -15 3 ✓ Closing fragment
07-26 14:10 20m -13 / - DK8HC - / +4 3 Partial capture
07-26 14:07 20m -10 / - <...> - / +2 3 Partial capture
07-19 15:19 20m - / -2 R6DVV -20 / - 4 ✓ Closing fragment
07-19 15:08 40m -19 / -6 SP4SHL -19 / -12 3 Partial capture
07-19 15:07 40m -19 / +1 DM3YBN -21 / - 4 ✓ Closing observed
07-19 15:05 40m -19 / - DL2BMH - / - 2 Partial capture
07-12 15:08 40m -12 / - DD7IW - / -13 4 Partial capture
07-12 15:04 40m -16 / - DK4NB - / - 2 ✓ Closing fragment
07-12 15:03 40m -10 / - F1IQH - / +10 2 Partial capture
07-12 14:59 40m -11 / - RA9CUU - / - 5 Partial capture
07-12 14:57 40m -13 / - EU6ABH - / -13 2 Partial capture
07-12 13:18 40m -18 / - DK8HC - / -1 2 Partial capture
07-12 13:17 40m -19 / - IZ8PPI - / -8 2 ✓ Closing fragment
07-04 15:54 40m -2 / - DL7SL - / +7 4 ✓ Closing fragment
07-04 15:44 40m -7 / - IR0WWA - / - 6 Partial capture
07-04 15:38 40m -6 / - SP3MKR - / -1 2 ✓ Closing fragment
07-04 15:27 40m -8 / - G0CLH - / - 3 Partial capture
07-04 15:23 40m -9 / - RA9CUU - / - 3 Partial capture
07-04 14:24 20m - / - RA6OY 0 / - 4 Partial capture
07-04 14:20 20m - / -4 RX3ASQ -12 / - 2 ✓ Closing fragment
06-28 18:34 40m - / -9 SQ8V -6 / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

20m 
UTC    dB Audio  Message
152200  -6 2446  BH2WTV OE7CST JN57 (x2)
152330 -10 2330  F6DEG OE7CST JN57 (x3)
152815 -16 1079  BA3NZ OE7CST JN57 (x2)
153045 -11 2389  UA9LLE OE7CST JN57
154215  -6 1813  LA8OOA OE7CST JN57 (x4)
154445  -9 2337  OH3JF OE7CST JN57
154700  -7 1008  TA6MMI OE7CST JN57 (x2)
40m 
UTC    dB Audio  Message
150800 -11 2421  DD7IW OE7CST -13 (x4)
155445 -13  646  OE7CST DL6CZG JO52
150545 -16 1958  DL2BMH OE7CST JN57 (x2)
150645 -19 1958  CQ OE7CST JN57
150700 -22 1958  OE7CST DM3YBN JO60 (x2)
150745 -19 1958  DM3YBN OE7CST RRR
150800 -20 1958  OE7CST DM3YBN 73
150815 -19 1958  SP4SHL OE7CST -12
150830 -19 1826  OE7CST SP4SHL R-06
150845 -19 1958  SP4SHL OE7CST RRR

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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