7Z1GC — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Saudi Arabia Most frequent locator attributed to this token: LK18

Receiver-side FT8 activity involving 7Z1GC, decoded by SO8OO in southeastern Poland. 247 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 13 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-08-20.

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 247 FT8 messages attributed to 7Z1GC as the transmitting token by decoded message structure across 13 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (74%), followed by 20 m (26%). Most decodes (68%) fell within the six-hour window 09:00-15:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.

Overview

247
Messages attributed
13
UTC dates decoded
31
Active 15-min windows
-8 dB
Estimated median S/N

Bands

20m · 65 10m · 182
First attributed message: 2026-06-08
Last attributed message: 2026-08-20 19:34 UTC

Observed FT8 message patterns

Attributed sample
247 messages
Active dates
13 UTC dates
Estimated median S/N
-8 dB
Estimated 10th-90th percentile
-17 to +1 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 33, moderate (-15 to -9 dB) 89, strong (≥ -8 dB) 125.

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 7Z1GC 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 7Z1GC

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
LK18 · 112 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
3,972 km (approx.)
Last such locator decoded
2026-08-20 19:17 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 UTCBand7Z1GC S/NCounterpartCounterpart S/NMsgsCapture
08-20 19:35 20m - / -17 M8KKH -2 / - 3 ✓ Closing fragment
08-20 19:28 20m - / - MW7FGG -15 / - 3 Partial capture
08-20 19:25 20m - / - ON/PA5PR -13 / - 2 Partial capture
08-20 19:25 20m - / -13 PD8MD +2 / - 2 ✓ Closing fragment
08-20 19:19 20m - / -1 DK4LK +8 / - 3 ✓ Closing fragment
08-07 21:20 20m -9 / -12 JF1KMC -13 / - 2 ✓ Closing observed
08-07 20:49 20m - / - IK4LZH -10 / - 2 Partial capture
07-30 17:59 20m - / - UR5HAN -16 / - 2 ✓ Closing fragment
07-30 17:50 20m - / -17 G0RVY -3 / - 3 ✓ Closing fragment
07-30 17:48 20m - / -13 RM4N -9 / - 2 ✓ Closing fragment
07-29 03:47 20m -5 / 0 KA9EKJ -21 / - 2 ✓ Closing observed
07-28 17:21 20m - / -14 F1PBZ -8 / - 2 Partial capture
07-28 16:42 20m -8 / -14 CT1BFP -2 / -17 3 Partial capture
07-28 16:39 20m - / - IK4LZH -5 / - 3 Partial capture
07-26 16:52 20m - / - G0ACQ -13 / - 2 Partial capture
07-26 16:30 20m - / - MW0KJN -10 / - 2 Partial capture
07-26 16:21 20m - / -19 F1PBZ -1 / - 2 Partial capture
07-26 16:21 20m - / -15 TA2ED -14 / - 2 ✓ Closing fragment
07-26 16:17 20m - / - TA7MMI -14 / - 2 ✓ Closing fragment
07-22 18:50 20m -9 / -20 UW5ESX -4 / -16 5 ✓ Full exchange observed
07-22 18:22 20m -9 / -20 PD2ARI -9 / - 2 ✓ Closing observed
07-22 18:19 20m -6 / -12 UR5VLC +2 / -15 2 Partial capture
07-22 18:15 20m - / -13 DC8SG -2 / - 2 ✓ Closing fragment
07-22 18:06 20m - / - F5UNH -7 / - 2 ✓ Closing fragment
07-22 18:04 20m - / -19 9A4DK -17 / - 2 Partial capture
06-30 18:04 20m - / - RA3DA +11 / - 2 Partial capture
06-30 17:50 20m - / -17 DL1R -10 / - 2 ✓ Closing fragment
06-30 17:50 20m - / - EA3HMM -8 / - 2 ✓ Closing fragment
06-29 12:25 20m - / -11 TA3NK -4 / - 2 ✓ Closing fragment
06-24 18:27 20m - / - DL1HKL -13 / - 8 Partial capture

Recent FT8 messages decoded at SO8OO

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

20m 
UTC    dB Audio  Message
192000  +8 2105  7Z1GC DK4LK R-01 (x2)
192100  -7 2155  7Z1GC M8KKH JO01
192500  +2 2570  7Z1GC PD8MD R-13 (x2)
192530 -16 3069  <7Z1GC> ON/PA5PR (x2)
192800 -11  279  7Z1GC MW7FGG IO81
192800  +6  525  7Z1GC M7NNB IO92
192830 -17  279  7Z1GC MW7FGG IO81 (x2)
193415 -10  527  LY5J 7Z1GC 73
193500  -1 2154  7Z1GC M8KKH JO01 (x3)
80m 
UTC    dB Audio  Message
164415 -23 1363  7Z1GC OZ1EDR JO65

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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