ON5VKE — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Belgium Most frequent locator attributed to this token: JO20

Receiver-side FT8 activity involving ON5VKE, decoded by SO8OO in southeastern Poland. 940 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 46 UTC dates in the available aggregate history. Observed between 2026-06-07 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 940 FT8 messages attributed to ON5VKE as the transmitting token by decoded message structure across 46 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (45%), followed by 80 m (31%) and 20 m (24%). Most decodes (70%) fell within the six-hour window 16:00-22:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

940
Messages attributed
46
UTC dates decoded
147
Active 15-min windows
-10 dB
Estimated median S/N

Bands

80m · 289 40m · 426 20m · 225
First attributed message: 2026-06-07
Last attributed message: 2026-09-20 18:37 UTC

Observed FT8 message patterns

Attributed sample
940 messages
Active dates
46 UTC dates
Estimated median S/N
-10 dB
Estimated 10th-90th percentile
-19 to -3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 239, moderate (-15 to -9 dB) 305, strong (≥ -8 dB) 396.

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 ON5VKE 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 ON5VKE

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
JO20 · 707 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,194 km (approx.)
Last such locator decoded
2026-09-20 18:36 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 UTCBandON5VKE S/NCounterpartCounterpart S/NMsgsCapture
09-20 18:36 40m -5 / +1 OE3PBS +5 / +3 5 ✓ Full exchange observed
09-20 18:00 40m - / -13 RY3F -2 / - 3 Partial capture
09-20 17:57 40m - / -16 OK7MZ -2 / - 2 ✓ Closing fragment
09-20 17:53 40m -8 / -2 M9PXZ -10 / -14 8 ✓ Full exchange observed
09-18 09:59 40m - / - DL1LRI -7 / - 3 Partial capture
09-18 09:54 40m - / -2 OE3KJO -4 / - 2 ✓ Closing fragment
09-13 12:22 40m - / +1 DG7WA -7 / - 2 ✓ Closing fragment
09-13 12:16 40m - / +9 DM2CNE -9 / - 3 ✓ Closing fragment
09-13 12:04 40m - / - PA3GAE -16 / - 2 ✓ Closing fragment
09-13 10:45 40m - / -12 SP3XR -10 / - 3 ✓ Closing fragment
09-13 10:25 40m - / -11 S55OO -2 / - 6 ✓ Closing fragment
09-11 09:07 40m - / -4 OK3MB -17 / - 3 ✓ Closing fragment
09-11 09:07 40m - / - OZ1JMJ -10 / - 4 Partial capture
09-11 09:07 40m - / -8 PA7ZZ -4 / - 2 Partial capture
09-10 20:57 40m - / - F1TXI -4 / - 3 Partial capture
09-10 20:51 40m -9 / - EA4HAI - / -15 2 Partial capture
09-09 19:41 40m -6 / - GW0XMG - / - 4 Partial capture
09-09 19:37 40m - / -11 UR3HC 0 / - 2 ✓ Closing fragment
09-09 19:33 40m -6 / -2 PC2K -5 / +8 4 ✓ Full exchange observed
09-09 19:20 40m - / - YO2MTG -5 / - 2 Partial capture
09-09 19:19 40m - / - RA6OY +4 / - 5 Partial capture
09-09 19:18 40m - / -20 UT4VL -6 / - 3 Partial capture
08-31 11:56 20m -4 / - SP6HT - / -5 4 Partial capture
08-31 11:53 20m -5 / - EA1EU - / -12 2 ✓ Closing fragment
08-30 21:02 80m - / - OT1V -3 / - 2 Partial capture
08-30 21:01 80m - / - DM2BM -4 / - 2 Partial capture
08-30 21:00 80m - / - UR9QQ -2 / - 8 Partial capture
08-30 20:59 80m - / +8 DO1OAS -5 / - 7 Partial capture
08-30 20:59 80m - / 0 F1PBZ +9 / - 4 Partial capture
08-30 20:58 80m - / -11 DL3HN -3 / - 6 Partial capture
08-30 16:27 20m -7 / - SA3SHN - / - 3 ✓ Closing fragment
08-29 21:09 40m -6 / - YL4U - / - 2 Partial capture
08-29 21:06 40m -4 / - IZ5YBN - / -7 2 ✓ Closing fragment
08-29 21:02 80m - / - G8OO -9 / - 2 Partial capture
08-29 20:59 80m -6 / - PA5MB - / +5 2 ✓ Closing fragment
08-29 20:55 80m -4 / - DO5PY - / +4 2 ✓ Closing fragment
08-29 20:54 80m - / -7 UA2KU 0 / - 2 Partial capture
08-29 20:53 80m - / - DO1TOM -14 / - 4 Partial capture
08-28 21:34 80m - / -14 R2EN +2 / - 2 Partial capture
08-28 21:34 80m - / - SP9MRP +9 / - 2 Partial capture
08-28 20:27 40m - / - R7ZY +3 / - 3 Partial capture
08-28 20:25 40m - / - OM3PR +2 / - 3 Partial capture
08-28 20:23 40m -7 / - PH0RON +3 / -6 3 ✓ Closing observed
08-28 20:23 40m - / - F1RAU -2 / - 6 Partial capture
08-28 20:21 40m -8 / - M0IEP - / -10 2 ✓ Closing fragment
08-28 20:16 40m -5 / - MW7RHR - / -11 5 Partial capture
08-28 20:12 40m -8 / +4 DL1EDR +1 / 0 5 ✓ Full exchange observed
08-28 20:11 40m -8 / - CT4VB - / +2 2 ✓ Closing fragment
08-28 20:07 40m - / - SP3HCA +2 / - 2 Partial capture
08-28 20:06 40m - / -10 YO9ADN -6 / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
175545  -6 1178  CQ ON5VKE JO20
175600  +5 2364  ON5VKE RV9XV LP63
175715 -12 1177  CQ ON5VKE JO20
175745  -2 1459  ON5VKE OK7MZ -16 (x2)
180045  -3 1178  ON5VKE RY3F -13 (x3)
180815  -7 2389  ON5VKE IQ4JO JN63
183530 -14 1177  CQ ON5VKE JO20
183600  -5 1177  OE3PBS ON5VKE JO20
183615  +5 1743  ON5VKE OE3PBS +01
183630  -5 1177  OE3PBS ON5VKE R+03
183645  +5 1743  ON5VKE OE3PBS RR73
183700  -5 1177  OE3PBS ON5VKE 73
80m 
UTC    dB Audio  Message
210245  -1 2104  ON5VKE IQ4JO JN63
210245  -5 1147  ON5VKE DO1OAS +08
210245  -2  403  ON5VKE DL3HN R-11
210315  +0  860  ON5VKE UR9QQ KN77
210315  -1  562  ON5VKE OT1V JO20
210315  -4 1147  ON5VKE DO1OAS +08
210345  -6  860  ON5VKE UR9QQ KN77
210345  -4 1147  ON5VKE DO1OAS +08
192900 -16 1121  CQ ON5VKE JO20 (x5)
193115  -1 1867  ON5VKE IQ4JO JN63
193130 -21 1120  CQ ON5VKE JO20
20m 
UTC    dB Audio  Message
115430  -6 1218  CQ ON5VKE JO20 (x3)
115600  -5 1218  SP6HT ON5VKE -05 (x2)
115645  -7 1218  ON5VKE R7OV KN87
115700  -1 1218  SP6HT ON5VKE -05 (x2)
115800  -2 1218  CQ ON5VKE JO20 (x7)
10m 
UTC    dB Audio  Message
080045 -21 1662  ON5VKE EC3A RR73
120945 -12 1379  ON5VKE EA3DYI R-15

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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