SQ5JRN — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: KO02

Receiver-side FT8 activity involving SQ5JRN, decoded by SO8OO in southeastern Poland. 55 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 6 UTC dates in the available aggregate history. Observed between 2026-06-20 and 2026-08-02.

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 55 FT8 messages attributed to SQ5JRN 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 (80%), followed by 20 m (20%). Several six-hour UTC windows tied for the largest share (69%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.

Overview

55
Messages attributed
6
UTC dates decoded
13
Active 15-min windows
-12 dB
Estimated median S/N

Bands

40m · 44 20m · 11
First attributed message: 2026-06-20
Last attributed message: 2026-08-02 20:45 UTC

Observed FT8 message patterns

Attributed sample
55 messages
Active dates
6 UTC dates
Estimated median S/N
-12 dB
Estimated 10th-90th percentile
-21 to 0 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 12, moderate (-15 to -9 dB) 26, strong (≥ -8 dB) 17.

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 SQ5JRN 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 SQ5JRN

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
KO02 · 22 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
290 km (approx.)
Last such locator decoded
2026-08-02 20:37 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 UTCBandSQ5JRN S/NCounterpartCounterpart S/NMsgsCapture
08-07 11:09 20m - / - IK4LZH +2 / - 3 Partial capture
08-07 10:40 40m - / +3 UT4PA -21 / - 3 ✓ Closing fragment
08-04 20:40 40m - / - 5P1KZX -16 / - 2 ✓ Closing fragment
08-04 20:33 40m - / +6 DL7ACA -2 / - 3 ✓ Closing fragment
08-02 20:32 40m -11 / - BI1TX - / -11 3 ✓ Closing fragment
08-02 20:31 40m -12 / -4 F5PBG -20 / -6 5 ✓ Full exchange observed
08-02 20:29 40m -11 / - YO3GJE - / -10 3 ✓ Closing fragment
08-02 20:23 40m -12 / - UB3XCC - / 0 4 ✓ Closing fragment
07-31 14:06 40m -22 / - DL3IAK - / -12 2 Partial capture
07-28 19:06 10m - / +2 DG5KCB -17 / - 2 ✓ Closing fragment
07-28 10:31 20m - / -1 F4ERS -6 / - 2 ✓ Closing fragment
07-28 10:27 20m - / -6 GJ0KYZ 0 / - 2 ✓ Closing fragment
07-05 19:52 40m -14 / - EG4WWA - / -12 4 Partial capture
07-05 19:44 40m -7 / - OH5WWA - / - 3 ✓ Closing fragment
07-05 19:42 40m -13 / -6 TM2WWA -7 / - 4 ✓ Closing observed
07-05 19:39 40m -4 / -11 II9WWA -8 / +5 4 Partial capture
07-05 19:37 40m -8 / - CS2WWA - / -9 4 Partial capture
07-05 19:35 40m -15 / - GB2WWA - / 0 3 ✓ Closing fragment
07-05 17:43 40m - / +4 TM2WWA -6 / - 2 Partial capture
07-04 21:05 20m - / 0 CR2WWA -4 / - 2 ✓ Closing fragment
07-04 15:59 40m - / +6 II3WWA -4 / - 2 Partial capture
07-04 14:06 20m - / - II1WWA -20 / - 2 ✓ Closing fragment
06-28 16:16 10m - / -15 DL9YNG -7 / - 3 ✓ Closing fragment
06-27 14:01 10m - / -12 RW6HP -16 / - 3 ✓ Closing fragment
06-27 13:57 10m - / - RC5F -17 / - 2 ✓ Closing fragment
06-26 14:29 20m -3 / - F1IQH - / -11 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

10m 
UTC    dB Audio  Message
135745 -15 1252  SQ5JRN RC5F KO85 (x2)
140145 -14 1613  SQ5JRN RW6HP LN14 (x3)
161600  -6  484  SQ5JRN DL9YNG JN48 (x3)
093230 -18 1002  SQ5JRN RR73; OE1HLB <...> -06
150545 -18 2174  SQ5JRN II7WWA RR73
182245 -11  680  SQ5JRN F4BJN R-21
100215 -11 2456  SQ5JRN E75W +01
190630 -17 1052  SQ5JRN DG5KCB R+02 (x2)
122630 -18 1374  SQ5JRN UB6OFG KN98
20m 
UTC    dB Audio  Message
140700 -23 1393  SQ5JRN II1WWA RR73
210530  -6 2012  SQ5JRN CR2WWA +00 (x2)
095745  -6  846  OL6WWA SQ5JRN R+10
095800 -15  845  SQ5JRN RR73; F4JUG <...> -08
095830 -21 2166  OH5WWA SQ5JRN KO02
102700  -3  888  SQ5JRN GJ0KYZ -06 (x2)
102945  -5 2830  SQ5JRN R7IA -02
103115  -4 2410  SQ5JRN F4ERS -01 (x2)
103600  -6 2226  SQ5JRN IS0/IK2YCW -03
110915  +1  463  SQ5JRN IK4LZH JN54 (x3)
40m 
UTC    dB Audio  Message
203245 -12 1267  BI1TX SQ5JRN KO02 (x3)
203515 -10 1034  EB1FE SQ5JRN KO02
203745 -14 1126  HL2LRN SQ5JRN KO02
204515  -4 2721  SP7TF SQ5JRN R+04
203345  +2 2540  SQ5JRN DL7ACA JO40 (x3)
203715 -24 1941  SQ5JRN YU7AS -02
204030 -16 1088  SQ5JRN 5P1KZX RR73 (x2)
104045 -21 1514  SQ5JRN UT4PA KO20 (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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