ON7DY — FT8 activity observed at SO8OO

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

Receiver-side FT8 activity involving ON7DY, decoded by SO8OO in southeastern Poland. 550 FT8 messages attributed to this token as transmitter, on 60m, 40m, 20m, 10m, across 43 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-08-31.

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 550 FT8 messages attributed to ON7DY as the transmitting token by decoded message structure across 43 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (81%), followed by 60 m (8%) and 40 m (6%). The busiest six-hour window was 15:00-21:00 UTC, containing 49% of decodes. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (61%); the estimated median was -7 dB.

Overview

550
Messages attributed
43
UTC dates decoded
122
Active 15-min windows
-7 dB
Estimated median S/N

Bands

60m · 44 40m · 35 20m · 444 10m · 27
First attributed message: 2026-06-06
Last attributed message: 2026-08-31 18:22 UTC

Observed FT8 message patterns

Attributed sample
550 messages
Active dates
43 UTC dates
Estimated median S/N
-7 dB
Estimated 10th-90th percentile
-14 to +2 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 36, moderate (-15 to -9 dB) 178, strong (≥ -8 dB) 336.

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 ON7DY 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 ON7DY

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 · 9 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,194 km (approx.)
Last such locator decoded
2026-08-29 08:34 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 UTCBandON7DY S/NCounterpartCounterpart S/NMsgsCapture
08-31 18:22 20m +2 / - 9A3TGY - / -18 2 Partial capture
08-31 18:08 20m -7 / - BG5GEB - / -11 4 Partial capture
08-29 20:28 60m 0 / +8 HB9RB +4 / +4 8 ✓ Full exchange observed
08-29 20:17 60m -6 / -10 EI5JL -16 / -3 6 ✓ Full exchange observed
08-29 20:09 60m -7 / - HB9AUS - / 0 15 Partial capture
08-29 20:06 60m -8 / - OM8YZ - / -14 5 Partial capture
08-29 19:59 60m -7 / -8 OV5SP -8 / - 3 ✓ Closing observed
08-29 19:54 60m -12 / - <...> - / -12 3 Partial capture
08-29 19:47 60m -13 / -10 ER1CW -11 / -11 4 ✓ Full exchange observed
08-29 18:05 20m -6 / - LX7I - / -19 2 Partial capture
08-29 17:58 20m -3 / - <...> - / -17 10 Partial capture
08-29 17:40 20m +6 / - <...> - / -9 2 Partial capture
08-29 17:34 20m +6 / - OH8GEB - / -14 2 Partial capture
08-29 16:48 20m +6 / - E27EEL - / -3 2 Partial capture
08-29 16:44 20m -4 / - E27EEL - / -3 2 Partial capture
08-29 10:00 20m -5 / - UA9LLB - / -15 2 Partial capture
08-29 09:48 20m -8 / - EA1FRP - / -12 23 Partial capture
08-27 14:44 20m - / -9 GM3DRA -2 / - 10 Partial capture
08-27 13:55 20m +7 / - RA0SCA - / -12 3 ✓ Closing fragment
08-21 07:59 20m -1 / - VK3HA - / -21 2 ✓ Closing fragment
08-15 19:33 40m -4 / - T77R - / -9 2 Partial capture
08-15 19:17 40m -6 / - <...> - / +2 6 Partial capture
08-14 20:38 20m -14 / - PT9PA - / -13 2 Partial capture
08-13 19:35 20m -10 / - <...> - / -19 4 Partial capture
08-13 18:41 20m -3 / - DS2MGT - / -16 7 Partial capture
08-13 18:39 20m -10 / - OK1FED - / -8 2 Partial capture
08-13 18:19 20m -4 / - IZ4JMA - / -14 4 ✓ Closing fragment
08-13 18:11 20m -8 / - R9SES - / -15 7 Partial capture
08-13 18:05 20m -8 / - DJ6OI/P - / -9 7 Partial capture
08-13 09:26 10m -8 / - CR5VP - / -10 2 Partial capture
08-11 19:46 20m -12 / - IW0RGU - / -13 3 Partial capture
08-11 19:35 20m -10 / - HZ1YJ - / -16 7 Partial capture
08-11 19:13 20m +5 / - <...> - / -16 5 Partial capture
08-09 20:25 40m -14 / - CR5VP -21 / -4 4 ✓ Closing observed
08-05 09:53 20m -18 / - CR5VP - / -5 2 Partial capture
08-05 09:53 20m -16 / -12 R5KH -24 / -18 3 Partial capture
08-05 09:33 20m -5 / -13 RC3AN -10 / -11 3 ✓ Full exchange observed
08-05 09:28 20m -3 / - RA3PPA - / 0 3 Partial capture
08-05 09:26 20m - / -14 RW3VA -15 / - 2 ✓ Closing fragment
08-05 09:17 20m -16 / - RA3AV - / -18 2 Partial capture
08-05 09:13 20m -12 / - YO8BJK - / -19 2 Partial capture
08-04 14:07 20m -8 / - PD0U - / -9 2 Partial capture
08-04 14:06 20m - / +7 SV7BAY -8 / - 2 ✓ Closing fragment
08-04 12:37 20m -7 / - UN0GY - / -11 3 Partial capture
08-04 12:28 20m - / -12 A71XX -18 / - 2 ✓ Closing fragment
08-04 12:24 20m - / +1 RU3QR -22 / - 3 ✓ Closing fragment
08-03 07:39 40m -12 / - VP2MAA - / -12 3 ✓ Closing fragment
07-31 08:06 20m - / -9 S59WT -12 / - 3 Partial capture
07-31 07:47 20m -10 / - XE2V - / -20 2 ✓ Closing fragment
07-31 07:32 20m -6 / - N5CH - / -15 9 Partial capture

Recent FT8 messages decoded at SO8OO

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

20m 
UTC    dB Audio  Message
180245  -8 2798  <...> ON7DY -17 (x2)
180530 -10 1935  LX7I ON7DY -19 (x2)
180730 -13 1251  RX3ASQ ON7DY +03
180530 -10 2510  BG5GEB ON7DY -11 (x6)
181745  -7 2754  <II7MGBA> ON7DY +07
182215  +7 2655  9A3TGY ON7DY -18 (x2)
203115  +7 1126  ON7DY CS8ABF 73
40m 
UTC    dB Audio  Message
074115 -11 2217  VP2MAA ON7DY RR73
202500 -15 2143  CR5VP ON7DY -04 (x3)
202645 -21 1539  ON7DY CR5VP 73
191700  -6 2669  <...> ON7DY +02 (x6)
193345  -3 2756  T77R ON7DY -09 (x2)
071730  -6 2666  HI3RRR ON7DY -15 (x2)
60m 
UTC    dB Audio  Message
201645  -5 2068  HB9AUS ON7DY +00
201715  -8 2068  EI5JL ON7DY -03 (x3)
201830 -16 1746  ON7DY EI5JL R-10
201845  -4 2068  EI5JL ON7DY RR73
201900 -16 1747  ON7DY EI5JL 73
202815  -1 2288  HB9RB ON7DY +04 (x5)
203030  +6  342  ON7DY HB9RB R+08
203045  -2 2288  HB9RB ON7DY RR73
203100  +2  342  ON7DY HB9RB RR73
10m 
UTC    dB Audio  Message
111315  +2 2610  LY2MM ON7DY RR73
111345  +0 2609  UA9CMN ON7DY RR73
111645  +3 2716  EX8ABR ON7DY -18 (x2)
111815  -3 2713  US1MM ON7DY -06 (x3)
112045  -3 2710  EX8ABR ON7DY -20 (x2)
092400 -22 2089  ON7DY HB9ACA R-15
092730 -10  490  ON7DY TM40TFR R+10
082545 -10 2651  IS0UWS ON7DY -11
092645  -7 2728  CR5VP ON7DY -10 (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.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee