JF8QNF — 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: Japan Most frequent locator attributed to this token: QN02

Receiver-side FT8 activity involving JF8QNF, decoded by SO8OO in southeastern Poland. 658 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 10m, across 42 UTC dates in the available aggregate history. Observed between 2026-08-02 and 2026-11-04.

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 658 FT8 messages attributed to JF8QNF as the transmitting token by decoded message structure across 42 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (51%), followed by 160 m (32%) and 40 m (17%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.

Overview

658
Messages attributed
42
UTC dates decoded
129
Active 15-min windows
-13 dB
Estimated median S/N

Bands

160m · 212 80m · 335 40m · 109 10m · 2
First attributed message: 2026-08-02
Last attributed message: 2026-11-04 20:20 UTC

Observed FT8 message patterns

Attributed sample
658 messages
Active dates
42 UTC dates
Estimated median S/N
-13 dB
Estimated 10th-90th percentile
-21 to -3.2 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 227, moderate (-15 to -9 dB) 259, strong (≥ -8 dB) 172.

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 JF8QNF 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 JF8QNF

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
QN02 · 227 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
8,163 km (approx.)
Last such locator decoded
2026-11-04 20:20 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 UTCBandJF8QNF S/NCounterpartCounterpart S/NMsgsCapture
11-04 20:19 80m - / - SV2CWV -6 / - 2 Partial capture
11-04 20:18 80m -4 / -25 IU8UUF +9 / - 4 ✓ Closing observed
11-04 20:16 80m - / -18 DL5RDP +5 / - 3 Partial capture
11-04 20:16 80m - / - DL8GAM +13 / - 3 Partial capture
11-04 20:13 80m -11 / - R7ZY -2 / -11 5 Partial capture
11-04 19:28 80m -14 / - TR8CA - / -18 3 Partial capture
11-04 18:58 160m -16 / -17 YO4CPO -17 / -21 5 Partial capture
11-04 18:29 80m - / -2 SV5BYP -14 / - 3 ✓ Closing fragment
11-03 19:56 160m -21 / -15 OE6MMD +5 / -14 5 ✓ Full exchange observed
11-03 19:25 160m -15 / -23 US0SY +6 / - 5 ✓ Closing observed
11-03 19:21 160m -10 / -20 HA1TNX +14 / -21 9 ✓ Full exchange observed
11-03 19:13 160m - / - RA6ZS -10 / - 4 Partial capture
11-03 18:29 160m - / -19 IW4AOT -8 / - 8 ✓ Closing fragment
11-03 18:24 80m - / - UA3YFL +1 / - 3 Partial capture
11-03 18:23 80m - / - OM2IB +19 / - 4 Partial capture
11-03 18:23 80m - / -5 R4HIV -22 / - 2 ✓ Closing fragment
11-03 18:18 80m - / - UA3YFL +5 / - 3 Partial capture
11-03 18:13 80m - / -2 RO2X -7 / - 5 ✓ Closing fragment
11-03 18:10 80m - / -9 SP6JZL -2 / - 3 Partial capture
11-03 18:10 80m - / -10 EU1FQ -10 / - 4 Partial capture
11-03 18:08 80m - / -19 SP9KR +18 / - 4 ✓ Closing fragment
11-03 18:08 80m - / -15 UX7UU +14 / - 60 Partial capture
11-03 18:04 80m -15 / -25 HB9AZZ +16 / - 4 ✓ Closing observed
11-03 18:02 80m - / -8 OH7XI +3 / - 4 ✓ Closing fragment
11-03 18:02 80m - / -15 R3GW -2 / - 2 ✓ Closing fragment
11-01 20:38 160m - / -8 OG8A -6 / - 2 ✓ Closing fragment
11-01 20:37 160m - / - RK3BM -13 / - 5 Partial capture
11-01 20:34 160m - / -21 DL8LAS +6 / - 4 ✓ Closing fragment
11-01 20:32 160m - / - IU2LVV -13 / - 17 Partial capture
11-01 20:32 160m - / - SP7AS -10 / - 2 Partial capture
11-01 20:31 160m - / -20 EW6FL +3 / - 2 ✓ Closing fragment
11-01 20:31 160m - / -14 F6BPZ -6 / - 3 ✓ Closing fragment
11-01 20:31 160m - / -13 SQ7AEC +2 / - 10 ✓ Closing fragment
11-01 20:24 160m - / - F8CRS -12 / - 2 Partial capture
11-01 20:24 160m - / - IU2LVV +2 / - 4 Partial capture
11-01 20:14 160m - / -10 IX1HOF -9 / - 2 ✓ Closing fragment
11-01 20:02 160m - / -24 RU4CK/P -20 / - 3 ✓ Closing fragment
11-01 19:57 160m - / -20 EB5A -13 / - 4 ✓ Closing fragment
11-01 19:48 160m - / -15 SP7Y +8 / - 2 ✓ Closing fragment
11-01 19:03 160m - / - EW1I +10 / - 2 Partial capture
11-01 19:01 160m - / -15 LA5LJA -7 / - 4 Partial capture
11-01 18:41 160m - / - IK7SHC -8 / - 3 Partial capture
11-01 18:37 160m -10 / - EA2B - / -20 2 Partial capture
11-01 18:34 160m -11 / - IK0NMJ -1 / -16 25 Partial capture
11-01 18:20 160m - / -18 SP7JLH +8 / - 6 ✓ Closing fragment
11-01 18:19 160m - / -17 F8IPH -22 / - 7 ✓ Closing fragment
11-01 18:09 160m - / - OH5KNL +4 / - 4 Partial capture
11-01 18:07 160m - / -6 SV8QG -19 / - 3 ✓ Closing fragment
11-01 18:06 160m - / -17 IZ7NLJ -3 / - 3 ✓ Closing fragment
11-01 17:57 80m - / - DL9KM -1 / - 6 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
201630  +5 2935  JF8QNF DL5RDP -18
201645 -10 2901  CQ DX JF8QNF QN02
201700 +13  572  JF8QNF DL8GAM JO42
201700  +7 2935  JF8QNF DL5RDP -18 (x2)
201745  -5 2900  CQ DX JF8QNF QN02
201800 +11 2900  JF8QNF IU8UUF JN70
201830  +0 1612  JF8QNF IZ8KVW JN71
201830  +7 2900  JF8QNF IU8UUF R-25
201845  -4 2900  IU8UUF JF8QNF RR73
201900  +8 2899  JF8QNF IU8UUF 73
201930 -10  493  JF8QNF SV2CWV KN10
202000  -5 2709  GW8PSJ JF8QNF QN02
202030  -3  493  JF8QNF SV2CWV KN10 (x2)
160m 
UTC    dB Audio  Message
195800  +4 1356  JF8QNF OE6MMD R-15 (x3)
203445 -10 2816  CQ DX JF8QNF QN02 (x3)
203730 -24  917  JF8QNF SV4LGX KM09
203730  +7 2670  JF8QNF HG9FS KN08
183215 -10 2763  CQ DX JF8QNF QN02
183330  -9 2154  JF8QNF RU3ACA -16
185845 -19 1831  JF8QNF YO4CPO KN44 (x2)
190000 -14 2734  YO4CPO JF8QNF -21
190045 -18 1954  JF8QNF YO4CPO R-17
190100 -18 2733  YO4CPO JF8QNF -21
40m 
UTC    dB Audio  Message
205500  -7 2792  ZC4OL JF8QNF QN02 (x2)
205745  +0  301  JF8QNF M9DNC -12 (x12)
111400 -11 1028  JF8QNF OH3MB KP20
10m 
UTC    dB Audio  Message
105415  -7 2056  JF8QNF F4FSY -01 (x2)
110500  -2 2492  JF8QNF DN9OPA JN38 (x11)
072745 -16 2289  TA7I JF8QNF +00
072845 -17 2289  UR5EEW JF8QNF -15

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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