WA4MB — 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: United States Most frequent locator attributed to this token: EL95

Receiver-side FT8 activity involving WA4MB, decoded by SO8OO in southeastern Poland. 379 FT8 messages attributed to this token as transmitter, on 60m, 40m, 20m, across 24 UTC dates in the available aggregate history. Observed between 2026-06-13 and 2026-10-14.

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 379 FT8 messages attributed to WA4MB as the transmitting token by decoded message structure across 24 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (56%), followed by 20 m (43%) and 60 m (1%). Most decodes (100%) fell within the six-hour window 22:00-04:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13.8 dB.

Overview

379
Messages attributed
24
UTC dates decoded
70
Active 15-min windows
-13.8 dB
Estimated median S/N

Bands

First attributed message: 2026-06-13
Last attributed message: 2026-10-14 02:09 UTC

Observed FT8 message patterns

Attributed sample
379 messages
Active dates
24 UTC dates
Estimated median S/N
-13.8 dB
Estimated 10th-90th percentile
-21 to -6 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 148, moderate (-15 to -9 dB) 144, strong (≥ -8 dB) 87.

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.

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 WA4MB

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
EL95 · 233 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
8,719 km (approx.)
Last such locator decoded
2026-10-14 02:09 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 UTCBandWA4MB S/NCounterpartCounterpart S/NMsgsCapture
10-22 02:16 80m - / -12 AB4SF -10 / - 2 ✓ Closing fragment
10-22 01:55 60m - / -12 OS4K -22 / - 2 Partial capture
10-15 01:43 60m - / -19 GI4SNA -9 / - 2 ✓ Closing fragment
10-14 02:19 40m - / -17 EA7KKO -18 / - 2 Partial capture
10-10 01:32 80m - / -7 VP2MAA -10 / - 4 Partial capture
10-09 02:35 40m -8 / - KF8EKF - / - 2 ✓ Closing fragment
10-09 02:33 40m -11 / - N8TUP - / - 2 Partial capture
10-09 02:30 40m -12 / - WA9CAT - / - 2 ✓ Closing fragment
10-09 02:17 40m - / -14 SV1BLD +12 / - 5 ✓ Closing fragment
10-09 02:07 40m -19 / - KD9WIF - / - 4 Partial capture
10-09 01:40 40m - / - RN6HK +4 / - 5 Partial capture
10-09 01:19 40m - / - F4FPR -12 / - 5 Partial capture
10-07 01:52 40m - / -13 IU8RFW -22 / - 2 ✓ Closing fragment
10-06 02:50 40m -21 / - KX2B - / - 3 Partial capture
10-06 02:47 40m -20 / - AL7T - / - 3 Partial capture
10-06 02:43 40m -19 / - K4MOR - / - 7 Partial capture
10-06 02:40 40m -17 / - AB2RR - / -4 4 ✓ Closing fragment
10-05 02:42 60m - / -6 IT9JNR +2 / - 2 ✓ Closing fragment
10-05 02:32 60m - / -16 ON1JP -16 / - 6 Partial capture
10-04 19:10 160m - / - F4BPO -4 / - 5 Partial capture
10-03 23:21 60m - / -15 LY5O -13 / - 8 Partial capture
10-02 02:49 60m - / -14 HA5UK -16 / - 3 Partial capture
10-02 01:48 60m - / -17 PF7DKW -1 / - 2 ✓ Closing fragment
10-02 01:45 60m - / -18 OR7K -3 / - 3 ✓ Closing fragment
10-02 01:36 60m - / -10 ON1JP -22 / - 2 Partial capture
10-02 01:10 60m - / - DL3HN -16 / - 2 Partial capture
10-01 01:47 60m - / -19 OM5JG -18 / - 3 ✓ Closing fragment
10-01 01:28 60m - / -18 OZ1BUR -9 / - 3 ✓ Closing fragment
10-01 01:15 60m - / -14 PE1MHY -4 / - 2 ✓ Closing fragment
10-01 01:08 60m -24 / - NV1U -19 / -4 2 ✓ Closing observed
09-30 02:48 60m - / -20 YO2MAX +6 / - 2 ✓ Closing fragment
09-30 02:39 60m - / -15 DB3ZY 0 / - 2 ✓ Closing fragment
09-30 02:07 60m - / -3 PA4PA +12 / - 2 ✓ Closing fragment
09-30 01:57 60m - / - SV1QEW -16 / - 4 Partial capture
09-29 02:52 40m -20 / - W0JJG - / - 4 Partial capture
09-29 02:48 40m -12 / -11 4L8A -2 / -6 8 ✓ Full exchange observed
09-28 03:05 60m - / - G6PWS -1 / - 2 Partial capture
09-22 05:14 60m - / - F/PA2JWN -10 / - 2 ✓ Closing fragment
09-22 05:14 60m - / - SP7NC +4 / - 5 Partial capture
09-22 02:44 40m -6 / - A61DD - / -25 8 Partial capture
09-22 02:43 40m - / - RA4ADF -2 / - 5 Partial capture
09-22 02:35 40m -10 / -16 A61DD -12 / -22 21 Partial capture
09-18 02:43 60m - / -13 F6ICX 0 / - 2 ✓ Closing fragment
09-15 02:20 60m - / -17 G4ZFJ +8 / - 2 Partial capture
09-15 02:19 60m - / -8 VY2JGC -18 / - 2 ✓ Closing fragment
09-15 01:57 60m - / -25 HB9SNR 0 / - 2 ✓ Closing fragment
09-15 01:52 60m - / -17 G4ZFJ +5 / - 3 Partial capture
09-15 01:46 60m - / -18 G4ZFJ +11 / - 3 Partial capture
09-05 03:01 40m -13 / - CE3OQA - / -26 2 Partial capture
09-05 02:48 40m -14 / - UT2PC - / -12 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m
UTC    dB Audio  Message
013245 -10 1035  WA4MB VP2MAA -07 (x4)
021815 -17 1767  WA4MB KC1SQ RR73
021645 -11 1182  WA4MB AB4SF -12 (x2)
60m
UTC    dB Audio  Message
232445 -11 2410  WA4MB LY5O -15
022900 -23 1592  KA2YNA WA4MB 73
023100 -24 1593  WB2AZQ WA4MB EL95
023215 -15 1528  WA4MB ON1JP -16 (x6)
024200  +1 2331  WA4MB IT9JNR -06 (x2)
014315 -10  874  WA4MB GI4SNA -19 (x2)
015500 -20 1878  WA4MB OS4K -12 (x2)
40m
UTC    dB Audio  Message
021900 +15 2405  WA4MB SV1BLD 73
022015 -20 2258  LA7DMA WA4MB 73
022145 -16 2258  KN4V WA4MB EL95
022445 -23 1866  WB6OEE WA4MB R-19
022645 -17 1031  KF5DOA WA4MB EL95
023015 -15 1032  WA9CAT WA4MB EL95 (x2)
023315 -12  480  N8TUP WA4MB EL95 (x2)
023515  -7  480  KF8EKF WA4MB EL95 (x2)
020915 -19 2403  W0OS WA4MB EL95
020930 -20 1658  WA4MB N5CDL +07
021900 -18 1337  WA4MB EA7KKO -17 (x2)
160m
UTC    dB Audio  Message
024930 -18 1217  WA4MB W7SMW -17
191015  -6 1525  WA4MB F4BPO JN36 (x5)
20m
UTC    dB Audio  Message
022715 -12  830  W4FMM WA4MB R-20 (x2)
022815 -14  831  GM4HCY WA4MB EL95 (x2)
023045 -13  831  PD0DDA WA4MB -14 (x2)
023215 -22 1719  AE4X WA4MB EL95 (x3)
023645 -14  832  G7FTN WA4MB 73
023815 -15  832  K4NCC WA4MB R-17
024845  +3  392  WA4MB R9SB -13 (x3)
121015  +0 1442  WA4MB EA3NG RR73

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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