SQ7NHR — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: JO91

Receiver-side FT8 activity involving SQ7NHR, decoded by SO8OO in southeastern Poland. 73 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 6 UTC dates in the available aggregate history. Observed between 2026-06-08 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 73 FT8 messages attributed to SQ7NHR 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 (73%), followed by 20 m (26%) and 80 m (1%). Most decodes (100%) fell within the six-hour window 03:00-09:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

73
Messages attributed
6
UTC dates decoded
10
Active 15-min windows
-10 dB
Estimated median S/N

Bands

80m · 1 40m · 53 20m · 19
First attributed message: 2026-06-08
Last attributed message: 2026-08-21 06:32 UTC

Observed FT8 message patterns

Attributed sample
73 messages
Active dates
6 UTC dates
Estimated median S/N
-10 dB
Estimated 10th-90th percentile
-18 to +3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 11, moderate (-15 to -9 dB) 26, strong (≥ -8 dB) 36.

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 SQ7NHR 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 SQ7NHR

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
JO91 · 44 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
262 km (approx.)
Last such locator decoded
2026-08-21 06:32 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 UTCBandSQ7NHR S/NCounterpartCounterpart S/NMsgsCapture
08-21 06:33 40m - / - SP1ZMO -18 / - 3 Partial capture
08-21 06:32 40m - / - DB3MAX -24 / - 2 Partial capture
08-21 06:30 40m 0 / - SP5ETF - / -7 2 ✓ Closing fragment
08-21 06:26 40m -9 / - DL2HUC -9 / -1 3 ✓ Closing observed
08-21 06:25 40m -2 / +2 YL2JZ -14 / -1 4 ✓ Full exchange observed
08-21 06:25 40m -1 / +5 SP9SOS -8 / -5 5 ✓ Full exchange observed
08-21 06:22 40m +3 / - SP8GF -18 / -15 4 Partial capture
08-21 06:21 40m +5 / - ON4VMA - / - 3 Partial capture
08-20 14:28 20m - / +5 F4HSB -12 / - 2 Partial capture
08-20 14:27 20m - / -6 UT4QM -8 / - 3 ✓ Closing fragment
08-20 14:25 20m - / -1 DL6KA +3 / - 2 ✓ Closing fragment
08-08 08:12 20m - / - PD0PWH -9 / - 2 Partial capture
08-02 10:43 20m - / - RA6OY +20 / - 4 Partial capture
08-02 10:38 20m - / - PA7D -11 / - 3 Partial capture
08-02 10:32 20m - / - PD4JOH -10 / - 2 Partial capture
08-01 08:10 40m -21 / -2 UT4PA -12 / +6 5 ✓ Full exchange observed
08-01 08:08 40m -19 / - F1PBZ - / -10 3 ✓ Closing fragment
08-01 08:02 40m - / -14 SP0DF -22 / - 2 ✓ Closing fragment
07-28 11:00 20m - / -22 DH2RL -14 / - 4 Partial capture
07-28 10:50 20m - / - IK4LZH +10 / - 3 Partial capture
07-28 10:49 20m - / - DL6UM -13 / - 2 Partial capture
07-28 10:48 20m - / +3 M7NFV -12 / - 3 ✓ Closing fragment
07-28 10:47 20m - / -2 DK0RST -24 / - 2 Partial capture
07-19 07:27 40m -11 / - DK7UY - / -7 2 ✓ Closing fragment
07-19 07:22 40m -12 / +4 SP2EOE -19 / +6 3 ✓ Full exchange observed
07-19 07:17 40m -13 / - F4PAN - / - 3 Partial capture
07-14 15:11 20m - / -18 DH3PL -15 / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
062745  -4 1389  SQ7NHR SP9SOS RR73
062800  -1 1389  SP9SOS SQ7NHR 73
062830  -4 1389  CQ SQ7NHR JO91                        a1 (x3)
063000  +1 1389  SP5ETF SQ7NHR R-07 (x2)
063100  +3 1389  CQ SQ7NHR JO91 (x3)
063215 -23 1390  SQ7NHR DB3MAX JO64 (x2)
063315 -15 1390  SQ7NHR SP1ZMO JO73 (x3)
20m 
UTC    dB Audio  Message
104300 +20  323  SQ7NHR RA6OY KN88 (x4)
081100 -12  729  SQ7NHR CR7BRV IM58
081230  -9 1317  SQ7NHR PD0PWH JO21 (x2)
142545 -19 2289  SQ7NHR RV3YN KO73
142545  +2  595  SQ7NHR DL6KA -01 (x2)
142715  -8 1740  SQ7NHR UT4QM KN77 (x3)
142815 -12 1920  SQ7NHR F4HSB JN37 (x2)

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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