RA2F — 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: Kaliningrad Most frequent locator attributed to this token: KO04

Receiver-side FT8 activity involving RA2F, decoded by SO8OO in southeastern Poland. 74 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 4 UTC dates in the available aggregate history. Observed between 2026-07-01 and 2026-10-22.

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 74 FT8 messages attributed to RA2F as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (68%), followed by 40 m (32%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (80%); the estimated median was -2 dB.

Overview

74
Messages attributed
4
UTC dates decoded
10
Active 15-min windows
-2 dB
Estimated median S/N

Bands

First attributed message: 2026-07-01
Last attributed message: 2026-10-22 17:53 UTC

Observed FT8 message patterns

Attributed sample
74 messages
Active dates
4 UTC dates
Estimated median S/N
-2 dB
Estimated 10th-90th percentile
-10 to +3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 14, strong (≥ -8 dB) 59.

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.

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 RA2F

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
KO04 · 21 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
510 km (approx.)
Last such locator decoded
2026-10-22 17:43 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 UTCBandRA2F S/NCounterpartCounterpart S/NMsgsCapture
10-22 17:52 80m +3 / +1 YO8CRU -6 / -9 5 ✓ Full exchange observed
10-22 17:50 80m -9 / -6 R3RB -11 / - 3 ✓ Closing observed
10-22 17:50 80m -1 / 0 RO2X +4 / -5 8 ✓ Full exchange observed
10-22 17:48 80m -3 / - UA9LT - / -17 2 ✓ Closing fragment
10-22 17:45 80m +2 / -14 RW9WJ -18 / - 5 ✓ Closing observed
10-22 17:43 80m -7 / - RA9FUE - / -20 3 ✓ Closing fragment
10-22 17:40 80m -5 / -19 UN3P -24 / -22 4 ✓ Full exchange observed
10-22 17:38 80m -1 / -1 DO2BBC +4 / -6 4 ✓ Full exchange observed
10-22 17:36 80m -3 / -9 YO4BXX -10 / -6 6 ✓ Full exchange observed
10-22 17:36 80m -2 / - RT3K -2 / -11 3 ✓ Closing observed
10-22 17:35 80m +3 / - R6ML - / -11 2 ✓ Closing fragment
10-22 17:32 80m -5 / - R2FC - / - 2 Partial capture
10-22 17:30 80m -2 / - R4CHN - / -26 2 Partial capture
10-22 17:30 80m - / - DL9KM -17 / - 2 Partial capture
10-22 17:30 80m +4 / +10 DO7BE -10 / -11 8 ✓ Full exchange observed
10-22 17:28 80m +4 / -2 EU1EU -9 / -6 3 ✓ Full exchange observed
10-22 17:27 80m -2 / -17 R3TS -18 / -14 5 ✓ Full exchange observed
10-22 17:24 80m +3 / +8 OM1TD -3 / -10 6 ✓ Full exchange observed
10-22 17:23 80m +2 / - R1QF/P - / - 2 Partial capture
10-22 17:22 80m -4 / -12 RK8W -9 / -16 4 ✓ Full exchange observed
10-22 17:21 80m +4 / - RX3VF -17 / -12 3 ✓ Closing observed
10-22 17:18 80m -1 / 0 RA5AD -8 / -4 5 ✓ Full exchange observed
10-22 17:16 80m -1 / +4 E70SZ +10 / -8 5 ✓ Full exchange observed
08-10 19:30 40m -9 / -4 DD7EE -4 / +4 6 ✓ Full exchange observed
08-10 19:27 40m -6 / - OH2PV - / -19 3 ✓ Closing fragment
08-10 18:15 40m -6 / - UB8AHK - / -15 2 Partial capture
08-04 19:03 40m -9 / - RC6OZ - / -10 2 ✓ Closing fragment
08-04 19:01 40m -10 / - RA3RPW - / -13 3 ✓ Closing fragment
08-04 18:56 40m -1 / - YC2BUZ - / - 4 Partial capture
08-04 18:53 40m - / -6 DJ0MAB -5 / - 3 ✓ Closing fragment
08-04 18:50 40m -4 / - VK4DAD - / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m
UTC    dB Audio  Message
175045  +3 2513  RA2F RO2X KO74
175045  -8 1953  RA2F R3RB LO03
175115  +6 2513  RA2F RO2X KO74
175115 -14 1953  RA2F R3RB R-06
175130  -9 1244  R3RB RA2F RR73
175145  +2 2513  RA2F RO2X KO74
175200  -1 1244  RO2X RA2F -05
175215  +4 2513  RA2F RO2X R+00
175230  -1 1244  RO2X RA2F RR73
175245  -4 1244  RA2F YO8CRU KN36
175245  +5 2513  RA2F RO2X 73
175300  +3 1244  YO8CRU RA2F -09
175315  -9 1244  RA2F YO8CRU R+01
175330  +3 1243  YO8CRU RA2F RR73
175345  -6 1244  RA2F YO8CRU 73
40m
UTC    dB Audio  Message
181500  -7  483  UB8AHK RA2F -15 (x2)
191630 -10  726  R1BDX RA2F -07
192115 -12  726  BG5JGG RA2F R-16
192645  -7  725  UB8CQC/P RA2F 73
192745 -12  725  OH2PV RA2F -19 (x3)
192945  -6  725  UB8CQC/P RA2F R+06
193000  -1  543  RA2F DD7EE JO41 (x2)
193045  -9  725  DD7EE RA2F +04
193100  -7  543  RA2F DD7EE R-04
193115  -9  725  DD7EE RA2F RR73
193130  -5  543  RA2F DD7EE 73

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

21 CW reception events in the last 30 days.

  • 40m: 21 events; last heard 2026-10-14 17:53 UTC

Latest CW receptions

UTCBandkHzS/N · 500 HzWPMListen
2026-10-14 17:53:2240m7022.8980.4 dB—WebSDR ↗
2026-10-14 17:50:2740m7022.8962.8 dB32.5WebSDR ↗
2026-10-14 17:49:2040m7022.89714.8 dB32.5WebSDR ↗
2026-10-14 17:40:1440m7022.8989.2 dB—WebSDR ↗
2026-10-14 17:38:0940m7022.89814.1 dB33WebSDR ↗
2026-10-14 17:28:5240m7022.89814.8 dB32.8WebSDR ↗
2026-10-14 17:25:0940m7022.89813.1 dB29.9WebSDR ↗
2026-10-14 17:24:4340m7022.89912.5 dB—WebSDR ↗
2026-10-14 17:16:0740m7022.9009.1 dB32.5WebSDR ↗
2026-10-14 17:15:0540m7022.8985.5 dB33.3WebSDR ↗
2026-10-14 17:14:0040m7022.9011.8 dB—WebSDR ↗
2026-10-14 17:12:4740m7022.90011.1 dB31.7WebSDR ↗
2026-10-14 17:11:3840m7022.9009.5 dB32.5WebSDR ↗
2026-10-14 17:10:4440m7022.90011.4 dB32.5WebSDR ↗
2026-10-14 17:10:0640m7022.8938.6 dB—WebSDR ↗
2026-10-07 17:32:1240m7015.9975.7 dB32.5WebSDR ↗
2026-10-07 17:30:1340m7015.9966.3 dB31.7WebSDR ↗
2026-10-07 17:19:2740m7015.9975.3 dB31.7WebSDR ↗
2026-10-07 17:03:1340m7015.9998.1 dB30.4WebSDR ↗
2026-10-07 17:02:1140m7015.9999.4 dB29.7WebSDR ↗
CW reception history

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