E70SZ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Bosnia-Herzegovina Most frequent locator attributed to this token: JN84

Receiver-side FT8 activity involving E70SZ, decoded by SO8OO in southeastern Poland. 18,169 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 111 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-06.

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 18,169 FT8 messages attributed to E70SZ as the transmitting token by decoded message structure across 111 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (37%), followed by 20 m (30%) and 80 m (26%). Most decodes (63%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (71%); the estimated median was -3 dB.

Overview

18,169
Messages attributed
111
UTC dates decoded
1,341
Active 15-min windows
-3 dB
Estimated median S/N

Bands

First attributed message: 2026-06-06
Last attributed message: 2026-10-06 06:22 UTC

Observed FT8 message patterns

Attributed sample
18,169 messages
Active dates
111 UTC dates
Estimated median S/N
-3 dB
Estimated 10th-90th percentile
-15 to +9 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1,651, moderate (-15 to -9 dB) 3,704, strong (≥ -8 dB) 12,814.

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 E70SZ

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
JN84 · 10,955 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
704 km (approx.)
Last such locator decoded
2026-10-06 06:21 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 UTCBandE70SZ S/NCounterpartCounterpart S/NMsgsCapture
10-06 06:21 40m -10 / - RD3FY - / -9 3 ✓ Closing fragment
10-06 06:11 40m -12 / - MM0ABM - / -17 2 Partial capture
10-06 06:08 40m -18 / - EA2CDY - / -15 2 Partial capture
10-06 06:05 40m -12 / - LB4PI - / - 2 Partial capture
10-06 06:03 40m -8 / - F6FDY -14 / +2 4 ✓ Closing observed
10-05 21:10 40m -16 / - BG2ATH - / - 2 Partial capture
10-05 21:04 40m -20 / - F5MEM - / - 3 Partial capture
10-05 21:01 40m -4 / - M0LAD - / - 3 Partial capture
10-05 20:58 80m -1 / - DC4BWS +1 / -11 5 ✓ Full exchange observed
10-05 20:57 80m 0 / +7 IW4BYK +5 / -1 5 ✓ Full exchange observed
10-05 20:56 80m +2 / - EA5FQ - / - 2 Partial capture
10-05 20:53 80m +3 / - R3ND - / - 3 Partial capture
10-05 20:49 80m +1 / - EA3JIJ - / - 5 Partial capture
10-05 20:47 80m +11 / - IZ7BAS - / -2 3 ✓ Closing fragment
10-05 20:45 80m +8 / - R3ND - / - 2 Partial capture
10-05 20:41 80m +7 / - OE1ISB - / -23 3 ✓ Closing fragment
10-05 20:39 80m +3 / +8 SQ2RAD 0 / +4 3 Partial capture
10-05 20:36 80m +7 / - RX3ASQ - / - 10 Partial capture
10-05 20:35 80m +5 / +2 SP5DFK/QRP -14 / -16 3 Partial capture
10-05 20:33 80m +8 / - RX3ASQ - / - 2 Partial capture
10-05 20:32 80m +14 / -3 EW8R +2 / -4 5 ✓ Full exchange observed
10-05 20:30 80m +9 / -8 G0HSP -14 / -18 5 ✓ Full exchange observed
10-05 20:27 80m +7 / - 9A4ZM - / - 3 Partial capture
10-05 20:25 80m +7 / - SM6USU -4 / -4 5 ✓ Full exchange observed
10-05 20:23 80m +4 / - IW3RWZ - / - 3 Partial capture
10-05 20:18 80m +12 / -19 HF40BLP +9 / -1 3 Partial capture
10-05 20:17 80m +6 / - RX3ASQ - / - 5 Partial capture
10-05 20:15 80m +9 / - AN5CV -6 / - 2 ✓ Closing observed
10-05 20:14 80m +4 / -2 DK1AQ +10 / +6 5 ✓ Full exchange observed
10-05 20:11 80m -4 / - R3KIZ - / -16 4 ✓ Closing fragment
10-05 20:07 80m +1 / -17 R3PJU -4 / - 2 Partial capture
10-05 20:05 80m -3 / - II5GG -1 / - 5 ✓ Closing observed
10-05 19:56 80m +5 / -11 SQ5ANT +14 / +7 8 ✓ Full exchange observed
10-05 19:53 80m +3 / -4 I8IGS -6 / - 2 Partial capture
10-05 19:52 80m +1 / - II5GG - / - 2 Partial capture
10-05 19:50 80m 0 / - TM4GGR - / -13 2 ✓ Closing fragment
10-05 19:49 60m - / - 9A4ZM +4 / - 2 Partial capture
10-05 19:46 80m -1 / - 9A4ZM - / - 3 Partial capture
10-05 19:42 80m +6 / -11 M7WVX -4 / -14 5 ✓ Full exchange observed
10-05 19:40 80m -4 / - EW6PG - / - 3 Partial capture
10-05 19:38 80m 0 / -16 UF5F -12 / -17 7 ✓ Full exchange observed
10-05 19:35 80m +5 / +4 LY6SPJ -16 / -22 4 Partial capture
10-05 19:33 80m -2 / - TA4/DD1WT - / -12 2 Partial capture
10-05 19:30 80m +3 / - RX3ASQ - / - 5 Partial capture
10-05 19:27 80m +1 / - R5AT - / - 6 Partial capture
10-05 19:22 80m -1 / -17 SQ3LMR -5 / -22 11 ✓ Full exchange observed
10-05 19:18 80m +7 / - 9A4ZM - / - 6 Partial capture
10-05 19:16 80m +2 / - IU3WOZ - / -4 3 Partial capture
10-05 19:14 80m +1 / -10 DO2MOG -18 / -23 5 ✓ Full exchange observed
10-05 19:13 80m 0 / - TA4/DD1WT - / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
060330 -15  239  E70SZ F6FDY JN33
060345 -10  262  F6FDY E70SZ +02 (x2)
060430 -14  239  E70SZ F6FDY 73
060545 -13 1644  LB4PI E70SZ JN84 (x2)
060845 -18 1343  EA2CDY E70SZ R-15 (x2)
061115 -11  590  MM0ABM E70SZ JN84 (x2)
062115 -10  296  RD3FY E70SZ JN84 (x3)
062230 -11 2306  E70SZ DK8MT JN58
062330 -24 1644  E70SZ LB4PI -10
80m
UTC    dB Audio  Message
205300  +1 1073  R3ND E70SZ JN84 (x3)
205600  +6 1153  EA5FQ E70SZ JN84 (x2)
205715  +1 1264  IW4BYK E70SZ JN84
205730  +1 1264  E70SZ IW4BYK +07
205745  +0 1264  IW4BYK E70SZ R-01
205800  +9 1264  E70SZ IW4BYK RR73
205815  -1 1264  IW4BYK E70SZ 73
205845  -1 1964  DC4BWS E70SZ JN84
205900  +1 1963  E70SZ DC4BWS +12
205915  -2 1964  DC4BWS E70SZ R-11
205930  +1 1963  E70SZ DC4BWS RR73
205945  +0 1964  DC4BWS E70SZ 73
60m
UTC    dB Audio  Message
222230  -4 1271  E70SZ OZ7FOC -14 (x7)
194930  +5 1082  E70SZ 9A4ZM JN86 (x2)
10m
UTC    dB Audio  Message
131145  -4 1235  E70SZ PC9F +17 (x2)
103945  -6 1256  E70SZ ON1AEY -04 (x2)
103830  -9 1104  E70SZ F4AHJ -09 (x2)
105830 -11  475  E70SZ DO1RWM -15
111800 -12  679  E70SZ DM9EE RR73
103300  -5 1117  DF6JF E70SZ JN84
114645  -7  972  E70SZ EA3AKY -15 (x2)
130245 -14 1760  E70SZ CS7CDZ -02 (x2)
130500 -12 1233  E70SZ CR7BUJ -05 (x2)
160m
UTC    dB Audio  Message
204430  -4  967  DD7EE E70SZ JN84
204445 -16  967  E70SZ DD7EE -08
204500  -1  967  DD7EE E70SZ R-22
204515 -19  967  E70SZ DD7EE RR73
204530  +3  967  DD7EE E70SZ 73
204945  -7 1207  R6HV E70SZ JN84
205230  -4 1554  M0ZJB E70SZ JN84
205330  +6  446  EB3DBR E70SZ JN84 (x2)
205415 -12  447  E70SZ EB3DBR -20
205430 +10  446  EB3DBR E70SZ R-16 (x2)
205515 +13  447  E70SZ US2YW KN28 (x3)
20m
UTC    dB Audio  Message
155145 +12  625  E70SZ EB3JT JN01
155345 -12  768  E70SZ PD2VE -11 (x3)
155915  +0 1979  E70SZ F5ADE +02 (x2)
160300 -18 1062  E70SZ M3FRS RR73
160500  -9 1325  E70SZ R6FCT LN05 (x2)
161245  -6 1120  E70SZ RW6A/P -05 (x2)
184200  +0  759  E70SZ M0KPW IO84 (x2)
145815 -22 1946  E70SZ RA3AHN -01 (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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