SP6ZLT — 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: Poland Most frequent locator attributed to this token: JO81

Receiver-side FT8 activity involving SP6ZLT, decoded by SO8OO in southeastern Poland. 363 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 30 UTC dates in the available aggregate history. Observed between 2026-06-14 and 2026-10-17.

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 363 FT8 messages attributed to SP6ZLT as the transmitting token by decoded message structure across 30 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (74%), followed by 80 m (19%) and 20 m (7%). Most decodes (75%) fell within the six-hour window 17:00-23:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9.1 dB.

Overview

363
Messages attributed
30
UTC dates decoded
79
Active 15-min windows
-9.1 dB
Estimated median S/N

Bands

80m · 68 40m · 269 20m · 26
First attributed message: 2026-06-14
Last attributed message: 2026-10-17 21:22 UTC

Observed FT8 message patterns

Attributed sample
363 messages
Active dates
30 UTC dates
Estimated median S/N
-9.1 dB
Estimated 10th-90th percentile
-17 to +2 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 52, moderate (-15 to -9 dB) 141, strong (≥ -8 dB) 170.

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 SP6ZLT 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 SP6ZLT

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
JO81 · 10 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
379 km (approx.)
Last such locator decoded
2026-10-17 21:21 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 UTCBandSP6ZLT S/NCounterpartCounterpart S/NMsgsCapture
11-04 17:17 40m - / -20 OM2BK -7 / - 2 ✓ Closing fragment
11-04 13:49 10m - / 0 4Z5ML +12 / - 2 ✓ Closing fragment
11-04 13:47 10m - / -2 CT1KNM +6 / - 2 ✓ Closing fragment
11-04 08:21 40m - / -19 IW3RWZ -17 / - 2 Partial capture
11-04 07:37 40m - / -7 DM9YL -6 / - 2 ✓ Closing fragment
11-04 06:48 40m - / -18 PI4DX -2 / - 3 Partial capture
10-31 14:40 40m - / -4 DL7BO +14 / - 2 ✓ Closing fragment
10-30 12:09 40m - / -12 DK1HSI -8 / - 3 Partial capture
10-30 11:50 40m - / -12 DL5DQZ +2 / - 2 ✓ Closing fragment
10-25 12:34 40m - / -5 SQ9AQQ -10 / - 2 ✓ Closing fragment
10-24 12:34 40m - / -6 SP6LHT -5 / - 2 ✓ Closing fragment
10-17 21:21 80m +2 / - OZ6HR - / +1 2 Partial capture
10-17 21:20 80m -3 / - DO1BOC - / - 3 Partial capture
10-17 21:18 80m -3 / +1 DK7ZT +4 / -7 4 ✓ Full exchange observed
10-17 21:16 80m -2 / - SP6K - / -8 4 ✓ Closing fragment
10-17 21:14 80m 0 / - OZ6HR - / -5 4 Partial capture
10-17 21:10 80m +6 / - R1BNG/P - / -11 2 Partial capture
10-17 21:08 80m +3 / - F4CTJ - / -11 4 ✓ Closing fragment
10-10 19:58 80m -8 / - V51WH - / -16 2 Partial capture
10-10 19:01 80m -11 / - SP9LQ - / -10 4 Partial capture
10-10 18:57 80m -2 / - SQ9MEZ - / -13 2 ✓ Closing fragment
10-10 09:41 40m - / - HF5W -8 / - 2 Partial capture
10-10 09:38 40m -12 / -3 DM8ITZ -6 / 0 4 ✓ Full exchange observed
10-02 09:11 40m - / -20 OZ9FF -10 / - 2 ✓ Closing fragment
10-01 14:48 40m - / -10 HA1BF +1 / - 4 ✓ Closing fragment
09-13 07:21 40m - / - IK2RZQ -7 / - 2 Partial capture
09-13 07:20 40m -1 / -13 SP5RZL -2 / 0 4 ✓ Full exchange observed
09-12 23:26 40m - / -18 EB3JT -9 / - 3 ✓ Closing fragment
09-12 23:23 40m - / -7 CR7BRV -6 / - 2 ✓ Closing fragment
09-12 23:13 80m - / - DO9BAU 0 / - 9 Partial capture
09-12 23:07 40m - / -5 F4MBU -6 / - 2 ✓ Closing fragment
08-31 07:37 20m - / -13 IQ4JO +7 / - 3 Partial capture
08-30 18:58 40m -11 / - DJ0MAB - / - 3 Partial capture
08-24 14:13 20m - / -20 IR7MGGC -1 / - 3 Partial capture
08-24 10:43 20m - / - ON4AOI -16 / - 2 ✓ Closing fragment
08-18 19:11 40m - / -13 RN2F -7 / - 2 ✓ Closing fragment
08-16 20:30 40m -9 / - EA8UP - / -14 2 Partial capture
08-15 21:50 40m -10 / -3 DM2RM +6 / +6 3 ✓ Full exchange observed
08-11 16:57 20m - / -19 HA1BF +2 / - 4 ✓ Closing fragment
08-10 18:18 80m +1 / +2 SN0GIP +3 / -3 5 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
120630  -5 1122  SP6ZLT HA1BF -06
120930  -9  457  SP6ZLT DK1HSI -12 (x3)
144000 +15  483  SP6ZLT DL7BO -04 (x2)
064845  +4 2178  SP6ZLT PI4DX -18 (x3)
073715  -5 2669  SP6ZLT DM9YL -07 (x2)
082115 -16 1675  SP6ZLT IW3RWZ -19 (x2)
171700  -9 1940  SP6ZLT OM2BK -20 (x2)
10m 
UTC    dB Audio  Message
134715  +6 1964  SP6ZLT CT1KNM -02 (x2)
134900 +11 3000  SP6ZLT 4Z5ML +00 (x2)
80m 
UTC    dB Audio  Message
211515  +2  760  OZ6HR SP6ZLT -05 (x2)
211615  -4  760  SP6K SP6ZLT -08 (x4)
211800  +2  826  SP6ZLT DK7ZT +01
211815  -7  760  DK7ZT SP6ZLT R-07
211830  +6  826  SP6ZLT DK7ZT RR73
211845  +1  760  DK7ZT SP6ZLT 73
212000  -2  760  DO1BOC SP6ZLT JO81 (x3)
212130  -1  760  OZ6HR SP6ZLT +01 (x2)
20m 
UTC    dB Audio  Message
165700  -9 1496  SP6ZLT HA1BF -19 (x4)
104315 -15 1692  SP6ZLT ON4AOI +18 (x2)
111015 +16  465  SP6ZLT IK4LZH RR73
141330  +0 1756  SP6ZLT IR7MGGC -20 (x3)
150200 -10 1479  SP6ZLT EA3AGF RR73
193600  -4 1508  SP6ZLT ON5LW RR73
073730 +13 2236  SP6ZLT IQ4JO -13 (x3)

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

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee