SV8SXD — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Greece Most frequent locator attributed to this token: KM29

Receiver-side FT8 activity involving SV8SXD, decoded by SO8OO in southeastern Poland. 67 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 6 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-09-20.

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 67 FT8 messages attributed to SV8SXD as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (67%), followed by 20 m (28%) and 80 m (3%). Several six-hour UTC windows tied for the largest share (90%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -15 dB.

Overview

67
Messages attributed
6
UTC dates decoded
11
Active 15-min windows
-15 dB
Estimated median S/N

Bands

80m · 2 40m · 45 20m · 19 10m · 1
First attributed message: 2026-06-09
Last attributed message: 2026-09-20 23:35 UTC

Observed FT8 message patterns

Attributed sample
67 messages
Active dates
6 UTC dates
Estimated median S/N
-15 dB
Estimated 10th-90th percentile
-23 to -1 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 32, moderate (-15 to -9 dB) 15, strong (≥ -8 dB) 20.

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 SV8SXD 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 SV8SXD

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
KM29 · 22 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,188 km (approx.)
Last such locator decoded
2026-09-07 23:40 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 UTCBandSV8SXD S/NCounterpartCounterpart S/NMsgsCapture
09-20 23:34 80m -2 / +2 SV5ADM 0 / +2 4 ✓ Full exchange observed
09-20 23:29 80m - / - 4O7CC +8 / - 2 ✓ Closing fragment
09-20 23:27 80m - / -2 EA5HM -13 / - 3 ✓ Closing fragment
09-20 23:25 80m - / -7 OK1HEH +5 / - 3 ✓ Closing fragment
09-20 23:25 80m - / -5 R4FDD +1 / - 3 ✓ Closing fragment
09-07 23:37 40m -15 / -13 YO9HP -14 / -2 3 ✓ Full exchange observed
09-07 23:35 40m -18 / - 9A3AUH - / -14 2 ✓ Closing fragment
09-07 23:31 40m -8 / - R3RBB - / -12 2 ✓ Closing fragment
09-07 23:25 40m -13 / - PI4TX - / -11 2 Partial capture
09-07 23:25 40m - / -21 IZ8PPI -20 / - 2 Partial capture
09-07 23:23 40m -13 / -14 F1PBZ +6 / -17 4 ✓ Full exchange observed
09-07 23:13 40m -2 / - XV9B - / -14 6 Partial capture
09-07 22:59 40m -4 / - TA2EE - / -5 2 ✓ Closing fragment
09-07 22:57 40m -4 / - PA2KV - / -11 2 ✓ Closing fragment
09-05 07:48 40m - / -11 IU4PSV -8 / - 3 ✓ Closing fragment
06-28 12:16 20m - / -9 G1LQT -19 / - 2 Partial capture
06-28 10:54 10m - / - IU7QBB -2 / - 4 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
232530  +2 1949  SV8SXD R4FDD R-05
232530  +9 1436  SV8SXD OK1HEH -07
232600  +0 1949  SV8SXD R4FDD 73
232600  +7 1436  SV8SXD OK1HEH -10 (x2)
232700 -13 1912  SV8SXD EA5HM IM99 (x3)
232900  +6  337  SV8SXD 4O7CC +11 (x2)
233100  -3 2142  SV8SXD GI4DOH RR73
233445  -1 1120  SV8SXD SV5ADM +02
233500  -2 1948  SV5ADM SV8SXD R+02
233515  +0 1120  SV8SXD SV5ADM RR73
233530  -1 1948  SV5ADM SV8SXD 73
40m 
UTC    dB Audio  Message
233015 -12 1980  CQ SV8SXD KM29 (x3)
233145  -8 1979  R3RBB SV8SXD -12 (x2)
233315 -17 1988  CQ SV8SXD KM29 (x2)
233515 -14 1983  RA3UAG SV8SXD RR73
233545 -18 1983  9A3AUH SV8SXD -14 (x2)
233715 -20 1984  CQ SV8SXD KM29
233730 -11 1042  SV8SXD YO9HP -13
233915 -15 1985  YO9HP SV8SXD R-02
233930 -16 1042  SV8SXD YO9HP RR73
234045 -18 1984  9V1YC SV8SXD KM29
20m 
UTC    dB Audio  Message
121400  -3 2732  SV8SXD IQ4JO JN63
121430 -20 2030  SV8SXD DH2YBG R+03
121600 -19 1250  SV8SXD G1LQT -09 (x2)
10m 
UTC    dB Audio  Message
105430  -3 2660  SV8SXD IU7QBB JM99
105445 -13 2520  SP9VEY SV8SXD RR73
105630  -1 2660  SV8SXD IU7QBB JM99 (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.

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