7Z1FF — 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: Saudi Arabia Most frequent locator attributed to this token: LL15

Receiver-side FT8 activity involving 7Z1FF, decoded by SO8OO in southeastern Poland. 566 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 19 UTC dates in the available aggregate history. Observed between 2026-08-02 and 2026-10-20.

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 566 FT8 messages attributed to 7Z1FF as the transmitting token by decoded message structure across 19 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (56%), followed by 10 m (43%) and 40 m (1%). Most decodes (65%) fell within the six-hour window 02:00-08:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -15 dB.

Overview

566
Messages attributed
19
UTC dates decoded
91
Active 15-min windows
-15 dB
Estimated median S/N

Bands

40m · 8 20m · 316 10m · 242
First attributed message: 2026-08-02
Last attributed message: 2026-10-20 12:38 UTC

Observed FT8 message patterns

Attributed sample
566 messages
Active dates
19 UTC dates
Estimated median S/N
-15 dB
Estimated 10th-90th percentile
-21 to -8 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 244, moderate (-15 to -9 dB) 248, strong (≥ -8 dB) 74.

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 7Z1FF 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 7Z1FF

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
LL15 · 350 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
3,271 km (approx.)
Last such locator decoded
2026-10-20 12:37 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 UTCBand7Z1FF S/NCounterpartCounterpart S/NMsgsCapture
10-20 12:37 10m -7 / - YU5B - / -7 2 ✓ Closing fragment
10-20 12:36 10m -6 / - SQ1RTU - / -14 2 ✓ Closing fragment
10-20 12:33 10m -7 / - SN4K - / -12 2 ✓ Closing fragment
10-20 12:29 10m -12 / - R1FC - / -16 7 ✓ Closing fragment
10-20 12:28 10m - / - TF4M -11 / - 6 Partial capture
10-20 12:28 10m -12 / - SP7TF - / -9 2 ✓ Closing fragment
10-20 07:36 10m -16 / - JA9IFF - / +2 2 ✓ Closing fragment
10-20 07:33 10m -18 / - S56A - / -6 2 ✓ Closing fragment
10-20 07:30 10m -18 / - BH4BNQ - / -19 2 Partial capture
10-20 07:11 10m -19 / - BI1RFV - / -7 2 ✓ Closing fragment
10-20 06:27 10m -16 / - SQ7EHA - / -12 2 ✓ Closing fragment
10-20 06:24 10m -18 / - IU4MTO - / -10 2 ✓ Closing fragment
10-20 06:21 10m -14 / - BI8FRF - / -6 2 ✓ Closing fragment
10-20 06:20 10m -16 / - 9A7V - / -6 2 ✓ Closing fragment
10-20 06:17 10m -13 / - SP6JIU - / -3 2 ✓ Closing fragment
10-20 06:12 10m -16 / - ON4CET - / -21 2 ✓ Closing fragment
10-20 06:07 10m -13 / - HG6WF - / -5 2 ✓ Closing fragment
10-20 06:04 10m -10 / - EX8BT - / -15 2 ✓ Closing fragment
10-20 06:03 10m -16 / - DL9KM - / -9 2 ✓ Closing fragment
10-20 06:01 10m -12 / - R2SDZ - / -14 2 ✓ Closing fragment
10-20 05:59 10m -15 / - UR0MC - / -5 2 ✓ Closing fragment
10-20 03:43 40m - / - F4BYA +10 / - 4 Partial capture
10-18 15:48 10m - / - EC7KW -8 / - 3 Partial capture
10-18 15:41 10m - / -20 CT2HEX -6 / - 3 ✓ Closing fragment
10-18 15:26 10m - / -1 CR7BUW -10 / - 2 Partial capture
10-18 15:22 10m -10 / - LZ1GC - / -4 5 Partial capture
10-18 15:20 10m -8 / - AA9JC - / -19 3 ✓ Closing fragment
10-18 15:18 10m -6 / - LZ1BJ - / -10 2 ✓ Closing fragment
10-18 15:16 10m -7 / - SP9PRR - / -20 3 ✓ Closing fragment
10-18 15:10 10m -6 / +5 EA7FXB -23 / -10 5 ✓ Full exchange observed
10-18 14:58 10m -11 / - WP3UT - / -18 3 Partial capture
10-18 14:43 10m -10 / - KV3R - / -9 2 Partial capture
10-18 14:06 10m -8 / - VE2WNF - / -10 2 ✓ Closing fragment
10-18 13:58 10m -7 / - IU1WZN - / -14 11 Partial capture
10-18 13:54 10m -6 / - VE3XAT - / -16 2 ✓ Closing fragment
10-18 13:48 10m -8 / - K3MEC - / -3 2 ✓ Closing fragment
10-17 15:43 10m - / -4 EA7HCG -6 / - 3 ✓ Closing fragment
10-17 15:20 10m - / - CT4KQ -22 / - 3 Partial capture
10-17 15:05 10m - / - CS7BLU -21 / - 2 ✓ Closing fragment
10-17 13:25 10m -16 / - YC4PCR - / -13 2 ✓ Closing fragment
10-17 13:24 10m -13 / - OE3FVU - / -15 3 ✓ Closing fragment
10-17 13:22 10m -10 / - SP2HJN - / -12 2 ✓ Closing fragment
10-17 13:20 10m -11 / - LU5FF - / -12 2 ✓ Closing fragment
10-17 13:18 10m -7 / - WK1O - / -6 2 ✓ Closing fragment
10-16 13:48 10m -22 / - RZ9WA - / -4 2 ✓ Closing fragment
10-16 13:38 10m -18 / - WB8ASI - / -7 2 ✓ Closing fragment
10-16 13:32 10m -20 / - HA5CPN - / -9 2 ✓ Closing fragment
10-16 13:29 10m -17 / - LZ4VR - / -16 2 ✓ Closing fragment
10-15 04:22 40m - / - SV1ONU -23 / - 2 Partial capture
10-15 04:18 40m - / -25 SP5MXZ -3 / - 11 Partial capture

Recent FT8 messages decoded at SO8OO

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

10m 
UTC    dB Audio  Message
123200 -17 2266  R1FC 7Z1FF R-16 (x2)
123245 -10 2560  7Z1FF TF4M HP85
123300  -5 2267  CQ 7Z1FF LL15
123330  -3 2267  SN4K 7Z1FF -12
123345 -11 2560  7Z1FF TF4M HP85
123400 -11 2267  SN4K 7Z1FF RR73
123430 -10 2267  CQ 7Z1FF LL15 (x3)
123600  -5 2267  SQ1RTU 7Z1FF -14 (x2)
123700  -8 2267  CQ 7Z1FF LL15
123730  -8 2266  YU5B 7Z1FF -07 (x2)
40m 
UTC    dB Audio  Message
041930  +0 2041  7Z1FF SP5MXZ -25 (x5)
042200 -23 1835  7Z1FF SV1ONU KM18
042200  -2 2041  7Z1FF SP5MXZ -25 (x2)
042300 -23 1835  7Z1FF SV1ONU KM18
042300  -3 2041  7Z1FF SP5MXZ -25 (x2)
034315 +13 2982  7Z1FF F4BYA JN19 (x4)
60m 
UTC    dB Audio  Message
052100  -4 1131  7Z1FF DM1SV JN49
055300  -9 1007  7Z1FF EA7ST IM87 (x8)
20m 
UTC    dB Audio  Message
035100 -15 1251  RC3AN 7Z1FF 73
035245 -18 1250  SV1EAG 7Z1FF LL15 (x3)
040615 -20 1155  UT0RM 7Z1FF LL15
041500 -16 1053  RU6FK 7Z1FF LL15
160045 -22 1187  CQ 7Z1FF LL15 (x3)
160230  -5  327  7Z1FF BG0DAP NN33 (x3)
020115  -9 1189  CQ 7Z1FF LL15
173500  +5 2279  7Z1FF ON6AA JO11
044415  -4 2104  7Z1FF EP2AES LM55

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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