DL4IAZ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JN48

Receiver-side FT8 activity involving DL4IAZ, decoded by SO8OO in southeastern Poland. 167 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 8 UTC dates in the available aggregate history. Observed between 2026-07-07 and 2026-09-02.

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 167 FT8 messages attributed to DL4IAZ as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (89%), followed by 60 m (5%) and 20 m (3%). Most decodes (84%) fell within the six-hour window 05:00-11:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.

Overview

167
Messages attributed
8
UTC dates decoded
22
Active 15-min windows
-8 dB
Estimated median S/N

Bands

80m · 2 60m · 9 40m · 148 20m · 5 10m · 3
First attributed message: 2026-07-07
Last attributed message: 2026-09-02 10:25 UTC

Observed FT8 message patterns

Attributed sample
167 messages
Active dates
8 UTC dates
Estimated median S/N
-8 dB
Estimated 10th-90th percentile
-20 to +1 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 39, moderate (-15 to -9 dB) 40, strong (≥ -8 dB) 88.

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 DL4IAZ 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 DL4IAZ

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
JN48 · 80 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
941 km (approx.)
Last such locator decoded
2026-09-02 10:25 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 UTCBandDL4IAZ S/NCounterpartCounterpart S/NMsgsCapture
09-02 10:25 40m -20 / - M7FHO - / - 2 Partial capture
09-02 10:23 40m -19 / +6 DH3CW -4 / -11 3 ✓ Full exchange observed
09-02 09:50 40m -20 / - F4SNF - / -4 2 ✓ Closing fragment
09-02 09:47 40m -17 / - HB9MXY - / +1 2 ✓ Closing fragment
08-31 11:38 20m +6 / +2 9A170NT +8 / -2 3 Partial capture
08-27 06:26 40m -1 / - DL4DP - / -1 3 ✓ Closing fragment
08-27 06:22 40m -10 / - F6JON/QRP - / -13 2 Partial capture
08-27 06:20 40m -10 / - PD1ADA - / +1 3 ✓ Closing fragment
08-27 06:19 40m - / - DJ0MAB -8 / - 7 Partial capture
08-27 06:18 40m 0 / -6 PD2MAC -9 / -4 4 ✓ Full exchange observed
08-27 06:13 40m -13 / 0 I/DH3YAK -11 / 0 3 Partial capture
08-27 06:09 40m -2 / -10 DH9DR +5 / +3 4 ✓ Full exchange observed
08-27 06:06 40m -7 / +8 M0CKX -20 / -1 5 ✓ Full exchange observed
08-27 06:04 40m -6 / - F5NNN - / -12 2 ✓ Closing fragment
08-27 06:02 40m -11 / - PV8AJ - / -13 3 ✓ Closing fragment
08-26 11:35 40m -21 / -2 SQ2ODE -2 / -10 4 ✓ Full exchange observed
08-26 11:33 40m -18 / +5 DH4ST -17 / 0 4 ✓ Full exchange observed
08-26 11:31 40m -20 / - PE1JFS - / -9 2 Partial capture
08-26 11:27 40m -14 / - MM0KQC - / -4 2 Partial capture
08-26 11:23 40m -16 / - GD0NFN - / -22 3 Partial capture
08-26 11:21 40m -14 / - OZ9FF - / -7 2 Partial capture
08-26 11:19 40m -19 / - DB70DLRS - / -2 2 Partial capture
08-26 11:15 40m -4 / - EA1CQ - / -13 2 ✓ Closing fragment
08-26 11:13 40m -2 / - DB9JH - / -3 3 ✓ Closing fragment
08-26 06:01 60m -20 / - F5OZC - / +1 2 ✓ Closing fragment
08-26 05:57 60m - / 0 DF6QN -13 / - 3 ✓ Closing fragment
08-26 05:54 60m -16 / - W8CO - / -12 6 ✓ Closing fragment
08-26 05:42 40m -2 / - DC9GT - / -13 2 ✓ Closing fragment
08-26 05:40 40m -2 / - N1WI - / - 4 Partial capture
08-26 05:39 40m -4 / - PV8AJ - / - 2 Partial capture
08-26 05:32 40m +7 / - N1WI - / - 2 Partial capture
08-26 05:31 40m -1 / +1 S55A -3 / -3 4 ✓ Full exchange observed
08-26 05:29 40m -2 / +8 IR7MGGC -7 / -2 3 Partial capture
08-26 05:28 40m -5 / - M9HEB - / -8 3 ✓ Closing fragment
08-25 05:36 40m -8 / - LZ2SPD - / -9 3 ✓ Closing fragment
08-25 05:32 40m -4 / - EA5HM -18 / -1 7 Partial capture
08-25 05:31 40m -9 / -1 II7MGBT -4 / +2 3 Partial capture
08-25 05:29 40m -5 / - ZL1OGX - / - 3 Partial capture
08-25 05:27 40m -7 / +6 SN40KZE +6 / -12 2 Partial capture
08-25 05:27 40m - / - YO3GNF -5 / - 2 Partial capture
08-20 07:22 10m -21 / - OE3FVU - / - 2 Partial capture
08-20 07:15 20m 0 / - 9H4JX - / -16 3 Partial capture
08-20 07:09 40m -11 / - CS8ABF - / -11 3 Partial capture
08-20 07:07 40m -12 / - SP5ROM - / 0 3 ✓ Closing fragment
08-20 06:59 40m -2 / - OJ0JR - / -10 13 ✓ Closing fragment
08-20 06:57 40m -8 / - F1TXI - / 0 2 ✓ Closing fragment
08-20 06:56 40m - / -3 GJ0KYZ -9 / - 2 Partial capture
08-20 06:54 40m -9 / - HB9HEF - / -3 3 ✓ Closing fragment
08-20 06:52 40m -12 / - PV8AJ - / - 2 Partial capture
08-20 06:47 40m -5 / - OJ0JR - / - 6 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
062600  -2  731  DL4DP DL4IAZ JN48 (x3)
094745 -19 1798  HB9MXY DL4IAZ R+01 (x2)
094945 -12 2640  DG2SEG DL4IAZ 73
095045 -21 2182  F4SNF DL4IAZ R-04 (x2)
095200  +1 1359  DL4IAZ SP100PKP -02
095345 -22 1981  G8ANJ DL4IAZ JN48
102345  -1 1735  DL4IAZ DH3CW +06
102400 -19 1735  DH3CW DL4IAZ R-11
102415  -7 1735  DL4IAZ DH3CW RR73
102500 -21 1409  M7FHO DL4IAZ JN48 (x2)
20m 
UTC    dB Audio  Message
071515  -1 1844  9H4JX DL4IAZ JN48 (x3)
113845  +5 2796  9A170NT DL4IAZ JN48
113900  +8 2796  DL4IAZ 9A170NT +02
113915  +6 2796  9A170NT DL4IAZ R-02
60m 
UTC    dB Audio  Message
055430 -17 1062  W8CO DL4IAZ R-12 (x5)
055745 -12 1214  DL4IAZ DF6QN JO41
055800 -15 1063  W8CO DL4IAZ RR73
055845 -12 1215  DL4IAZ DF6QN R+00 (x2)
060100 -20 1471  F5OZC DL4IAZ R+01 (x2)
060300 -20 1472  F5OYA/P DL4IAZ RR73
10m 
UTC    dB Audio  Message
071915 -24 1856  YO8BJK DL4IAZ RR73
072200 -20 1684  OE3FVU DL4IAZ JN48 (x2)
80m 
UTC    dB Audio  Message
051400 -10 1044  DL4IAZ DL3FBI +00
051415 -13 1044  DL3FBI DL4IAZ R-02
051430  -9 1044  DL4IAZ DL3FBI RRR
051445 -11 1044  DL3FBI DL4IAZ 73

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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