RA3APK — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KO85

Receiver-side FT8 activity involving RA3APK, decoded by SO8OO in southeastern Poland. 70 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 5 UTC dates in the available aggregate history. Observed between 2026-07-18 and 2026-08-30.

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 70 FT8 messages attributed to RA3APK as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (74%), followed by 20 m (26%). Most decodes (83%) 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 -13 dB.

Overview

70
Messages attributed
5
UTC dates decoded
17
Active 15-min windows
-13 dB
Estimated median S/N

Bands

40m · 52 20m · 18
First attributed message: 2026-07-18
Last attributed message: 2026-08-30 12:49 UTC

Observed FT8 message patterns

Attributed sample
70 messages
Active dates
5 UTC dates
Estimated median S/N
-13 dB
Estimated 10th-90th percentile
-22 to -2 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 29, moderate (-15 to -9 dB) 28, strong (≥ -8 dB) 13.

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 RA3APK 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 RA3APK

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
KO85 · 10 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,193 km (approx.)
Last such locator decoded
2026-08-30 12:44 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 UTCBandRA3APK S/NCounterpartCounterpart S/NMsgsCapture
08-30 12:48 20m -2 / - OZ7AEI - / -12 3 ✓ Closing fragment
08-30 12:43 20m -4 / - BG0FQU - / -21 4 ✓ Closing fragment
08-30 12:41 20m -1 / - R9OAE - / -11 3 ✓ Closing fragment
08-23 20:47 40m -12 / - JN4MIV - / -8 3 Partial capture
08-23 20:45 40m - / -11 RM5F -2 / - 3 ✓ Closing fragment
08-23 20:16 40m - / -6 UB6OCP -10 / - 4 ✓ Closing fragment
08-23 20:07 40m -9 / - JM1DVM - / -19 5 Partial capture
08-23 20:04 40m -11 / -13 RL3QGD -1 / -19 7 ✓ Full exchange observed
08-23 19:57 40m - / -15 JA5XAE -7 / - 2 ✓ Closing fragment
08-23 19:53 40m -9 / - JA6CNL - / -13 2 Partial capture
08-22 21:23 40m -18 / - D2UY - / -15 2 Partial capture
08-22 21:14 40m -18 / -14 R2BIU -3 / -16 5 ✓ Full exchange observed
08-22 21:12 40m -19 / - D2UY - / -16 8 Partial capture
08-22 20:19 40m -19 / - JA4TKY - / -9 3 Partial capture
08-22 16:46 40m -24 / -2 R4PFY -15 / - 2 ✓ Closing observed
08-22 16:41 40m -16 / - UN7DCS - / -7 2 ✓ Closing fragment
08-22 16:37 40m -22 / - UA3WG -13 / -4 2 Partial capture
08-21 15:13 20m - / -17 PD4RJ -12 / - 4 ✓ Closing fragment
08-21 13:35 20m - / -7 R6AO -9 / - 4 Partial capture
08-02 19:43 20m - / -16 TN8GD -8 / - 2 ✓ Closing fragment
08-02 17:50 20m - / -13 F1IQH -16 / - 7 ✓ Closing fragment
08-02 17:46 20m - / -15 PD3LKN +3 / - 4 ✓ Closing fragment
07-20 21:47 20m - / -16 TA2ED -5 / - 3 ✓ Closing fragment
07-09 19:51 20m - / -19 LZ1WV -3 / - 2 ✓ Closing fragment
07-09 09:14 20m - / - DF3ZE -18 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

20m 
UTC    dB Audio  Message
160800  -9  355  RA3APK RR73; G1WOV <...> -10
123800 +13 1086  RA3APK RA6ALD R-11
124145  +1  892  R9OAE RA3APK -11 (x3)
124315  -2  891  BG0FQU RA3APK -21 (x2)
124415  -2  892  CQ RA3APK KO85
124515  -2  892  BG0FQU RA3APK R-17 (x2)
124745  -2  892  F1PSX RA3APK -18
124845  +1  893  OZ7AEI RA3APK -12 (x3)
125100 -15 1831  RA3APK A41KB R+00
40m 
UTC    dB Audio  Message
200800  -9 2287  JM1DVM RA3APK -19 (x4)
201645  -9 2094  RA3APK UB6OCP KN88 (x4)
204415 -15 2287  JN4MIV RA3APK -06
204500  -4 1030  RA3APK RM5F KO85 (x3)
204730 -12 2287  JN4MIV RA3APK -08 (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