A71UN — 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: Qatar Most frequent locator attributed to this token: LL55

Receiver-side FT8 activity involving A71UN, decoded by SO8OO in southeastern Poland. 10,700 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 33 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-08-21.

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 10,700 FT8 messages attributed to A71UN as the transmitting token by decoded message structure across 33 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (75%), followed by 40 m (19%) and 80 m (4%). Most decodes (67%) fell within the six-hour window 21:00-03:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.

Overview

10,700
Messages attributed
33
UTC dates decoded
519
Active 15-min windows
-13 dB
Estimated median S/N

Bands

80m · 424 40m · 2,006 20m · 8,053 10m · 217
First attributed message: 2026-06-06
Last attributed message: 2026-08-21 22:55 UTC

Observed FT8 message patterns

Attributed sample
10,700 messages
Active dates
33 UTC dates
Estimated median S/N
-13 dB
Estimated 10th-90th percentile
-20 to -5 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3,450, moderate (-15 to -9 dB) 4,677, strong (≥ -8 dB) 2,573.

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 A71UN 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 A71UN

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
LL55 · 6,979 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
3,694 km (approx.)
Last such locator decoded
2026-08-21 22:54 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 UTCBandA71UN S/NCounterpartCounterpart S/NMsgsCapture
08-21 22:54 20m +8 / +8 XU7O -7 / -14 5 ✓ Full exchange observed
08-21 22:47 20m +10 / - WV5A - / -4 5 ✓ Closing fragment
08-21 22:45 20m +13 / - 6Y5RH - / - 3 Partial capture
08-21 22:43 20m - / - IK3BVD -8 / - 4 Partial capture
08-21 22:42 20m +4 / - KC3VBE - / -10 2 ✓ Closing fragment
08-21 22:41 20m - / - IW5ALZ -11 / - 4 Partial capture
08-21 22:35 20m -3 / -6 W4PPT -18 / -15 5 ✓ Full exchange observed
08-21 22:34 20m -3 / - VE3XZF - / -18 4 Partial capture
08-21 22:33 20m +1 / - DL7JLC - / +1 4 ✓ Closing fragment
08-21 22:33 20m -1 / - EA8BYO - / -20 4 Partial capture
08-21 22:33 20m - / - IK4LZH +3 / - 3 Partial capture
08-21 22:32 20m - / - WB2FKO -4 / - 2 Partial capture
08-21 22:31 20m - / - VO2NS -10 / - 3 Partial capture
08-21 22:26 20m +4 / - V7YOO - / -14 4 Partial capture
08-21 22:22 20m -2 / -3 R3FE -12 / -7 3 ✓ Full exchange observed
08-21 22:22 20m - / -6 ON4SC -3 / - 4 Partial capture
08-21 22:20 20m -4 / - V7YOO - / -14 3 Partial capture
08-21 22:20 20m -3 / - W4MA - / -5 3 ✓ Closing fragment
08-21 22:18 20m -4 / - JG8JBX - / -13 4 Partial capture
08-21 22:17 20m - / - DL1YAW/P -11 / - 7 Partial capture
08-21 22:16 20m - / -8 OH4LRP -4 / - 3 ✓ Closing fragment
08-21 22:13 20m -9 / - JS2GSW - / -13 2 ✓ Closing fragment
08-21 22:10 20m -15 / - JH5WVY - / -16 3 ✓ Closing fragment
08-21 22:09 20m -12 / - N9MAX - / 0 2 ✓ Closing fragment
08-21 22:08 20m - / - IW5ALZ -1 / - 3 Partial capture
08-21 22:04 20m -9 / - F1JIO - / -4 4 ✓ Closing fragment
08-21 22:04 20m - / - HB9EXE -4 / - 11 Partial capture
08-21 22:02 20m -7 / - JG1EZF - / -4 2 ✓ Closing fragment
08-21 22:01 20m -4 / - EA7BEM - / -13 3 Partial capture
08-21 22:00 20m - / - IW5ALZ -5 / - 4 Partial capture
08-21 21:58 20m - / -9 KP4QVQ -12 / - 6 Partial capture
08-21 21:54 20m - / - IW5ALZ -8 / - 5 Partial capture
08-21 21:54 20m 0 / - G0BAZ - / -20 2 Partial capture
08-21 21:53 20m -6 / -2 N3AAA -6 / +1 2 Partial capture
08-21 21:48 20m - / -17 KP4QVQ -12 / - 4 Partial capture
08-21 21:47 20m -2 / - W9TST - / -16 4 ✓ Closing fragment
08-21 21:46 20m - / - PD4RJ -9 / - 2 Partial capture
08-21 21:45 20m -3 / +1 IU3UMB -7 / -13 6 Partial capture
08-21 21:45 20m - / - WB8SIG -8 / - 2 Partial capture
08-21 21:45 20m -6 / - N8CMB - / -5 3 Partial capture
08-21 21:42 20m - / - NA4MM -19 / - 2 Partial capture
08-21 21:39 20m - / -19 HZ1SK -13 / - 2 Partial capture
08-21 21:38 20m - / -13 KP4QVQ -12 / - 9 Partial capture
08-21 21:36 20m -7 / 0 EI2KXB -14 / -17 4 ✓ Full exchange observed
08-21 21:28 20m -10 / -8 N1NK +4 / +6 4 ✓ Full exchange observed
08-21 21:28 20m - / - ON9MD -5 / - 5 Partial capture
08-21 21:25 20m - / - M7XEI -19 / - 3 Partial capture
08-21 21:24 20m -20 / - M9DNC - / -22 2 Partial capture
08-21 21:21 20m - / - IK1LJO -12 / - 4 Partial capture
08-21 21:20 20m - / - F4VTR -4 / - 5 Partial capture

Recent FT8 messages decoded at SO8OO

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

20m 
UTC    dB Audio  Message
224500  +6  825  V7YOO A71UN -14
224515 -11 1217  A71UN IK3BVD JN66
224515 +13  826  6Y5RH A71UN LL55 (x3)
224700  +7  826  WV5A A71UN LL55 (x5)
225445 +11  826  XU7O A71UN LL55
225500  -6  528  A71UN XU7O +08
225515  +6  826  XU7O A71UN R-14
225530  -8  528  A71UN XU7O RR73
225545  +6  826  XU7O A71UN 73
10m 
UTC    dB Audio  Message
102145 -18 1498  A71UN DG1KIW JO30 (x5)
102715 -18  943  A71UN S57MPU R-21 (x3)
102845  +1  593  A71UN ON7GB JO21
102845 -14 1439  A71UN DN9WES JO30
102915 -15  943  A71UN S57MPU R-21
102915 -16 1439  A71UN DN9WES JO30 (x4)
60m 
UTC    dB Audio  Message
203600  +7  609  A71UN 9A4ZM JN86 (x2)
40m 
UTC    dB Audio  Message
023930 -18 1033  CQ A71UN LL55                         a1
023945  -3  590  A71UN PA3EY R-15
024030 -16 1034  CQ A71UN LL55                         a1 (x7)
030715  -8 1122  A71UN WK1O FN42 (x2)
030745 -15 1034  A71UN TA3NK KN39
030815  -3 1122  A71UN WK1O R-22
030815 -18 1034  A71UN TA3NK KN39 (x2)
80m 
UTC    dB Audio  Message
211545  +9 2523  A71UN DL3TC JO50

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

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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