DL7ROB — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JN58

Receiver-side FT8 activity involving DL7ROB, decoded by SO8OO in southeastern Poland. 667 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 41 UTC dates in the available aggregate history. Observed between 2026-07-12 and 2026-09-18.

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 667 FT8 messages attributed to DL7ROB as the transmitting token by decoded message structure across 41 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (78%), followed by 20 m (20%) and 10 m (1%). Most decodes (52%) 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 -12 dB.

Overview

667
Messages attributed
41
UTC dates decoded
153
Active 15-min windows
-12 dB
Estimated median S/N

Bands

First attributed message: 2026-07-12
Last attributed message: 2026-09-18 06:08 UTC

Observed FT8 message patterns

Attributed sample
667 messages
Active dates
41 UTC dates
Estimated median S/N
-12 dB
Estimated 10th-90th percentile
-19 to -3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 189, moderate (-15 to -9 dB) 292, strong (≥ -8 dB) 186.

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 DL7ROB

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
JN58 · 315 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
799 km (approx.)
Last such locator decoded
2026-09-18 06:08 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 UTCBandDL7ROB S/NCounterpartCounterpart S/NMsgsCapture
09-18 06:08 40m -8 / +9 HA1BF +4 / - 10 ✓ Closing observed
09-17 22:51 40m -11 / -24 4X5JK -4 / -8 13 ✓ Full exchange observed
09-17 22:46 40m -16 / -20 W6NWS -2 / 0 3 Partial capture
09-17 22:43 40m -14 / - SP5EXA - / - 2 Partial capture
09-17 22:25 40m -20 / - A61DD - / - 2 Partial capture
09-01 03:59 40m - / -16 US3EW -4 / - 2 Partial capture
09-01 03:56 40m - / -12 IT9VCE +6 / - 2 ✓ Closing fragment
09-01 03:50 40m - / -15 MI0OBC -8 / - 2 ✓ Closing fragment
08-31 20:13 40m +3 / +1 DL5RCN +6 / -1 5 ✓ Full exchange observed
08-31 20:09 40m -6 / - OK1WCF +1 / -2 3 ✓ Closing observed
08-31 20:08 40m -11 / -7 OZ7DR -11 / +5 4 ✓ Full exchange observed
08-31 13:05 40m - / +1 9A3AUH -6 / - 4 ✓ Closing fragment
08-31 13:04 40m -23 / - G0LUH - / -12 2 Partial capture
08-31 13:01 40m -20 / +4 DM1MT -13 / - 4 ✓ Closing observed
08-31 12:57 40m - / -13 DL5MK -5 / - 4 ✓ Closing fragment
08-31 03:42 40m - / -7 SV1ENG -2 / - 3 ✓ Closing fragment
08-30 19:15 20m - / -6 MW1CFA 0 / - 2 Partial capture
08-30 05:59 40m -2 / - DK2M +5 / - 7 ✓ Full exchange observed
08-30 05:55 20m - / -19 R3NCG +6 / - 15 Partial capture
08-30 05:53 20m - / -4 LZ6C -23 / - 3 ✓ Closing fragment
08-30 04:24 20m - / -8 UF4S -8 / - 2 ✓ Closing fragment
08-29 20:37 40m +3 / +5 G1SID -2 / +2 5 ✓ Full exchange observed
08-29 20:35 40m -8 / - DL8HXP - / - 2 Partial capture
08-29 20:26 40m +5 / 0 G1SID 0 / +6 7 ✓ Full exchange observed
08-25 06:18 40m -14 / - EA7GUL - / -18 8 ✓ Closing fragment
08-25 05:13 40m -7 / -4 IZ4JMA -11 / -8 6 Partial capture
08-25 03:54 40m -1 / - R2AL +10 / +9 7 Partial capture
08-24 20:21 40m - / -5 F1HFP 0 / - 4 ✓ Closing fragment
08-24 20:15 40m -12 / -10 LZ2VQ -8 / -11 6 ✓ Full exchange observed
08-23 01:27 40m -18 / - OO0O -14 / -7 8 ✓ Closing observed
08-21 05:38 40m +6 / -2 F5SJC -12 / +6 5 ✓ Full exchange observed
08-21 05:33 40m +9 / - OJ0JR - / -11 4 Partial capture
08-20 17:35 40m - / - DL0NS -11 / - 3 Partial capture
08-20 17:13 40m +7 / +5 OE3KJO +15 / +3 3 Partial capture
08-20 17:12 40m -2 / - IK1MJK/P - / - 2 Partial capture
08-20 17:10 40m -2 / -9 IZ3VCN +2 / +5 5 ✓ Full exchange observed
08-20 17:04 40m -8 / - DB3MAX -9 / -4 13 Partial capture
08-20 17:03 40m -7 / +5 SQ9SZ -15 / -17 5 ✓ Full exchange observed
08-20 05:53 40m -18 / - M0DSK - / - 2 Partial capture
08-20 05:37 40m -11 / - OE1AAY -4 / +8 11 Partial capture
08-20 05:37 40m -12 / - ON5HE +2 / - 5 Partial capture
08-20 05:35 40m -12 / - M0CKX - / -9 3 ✓ Closing fragment
08-19 19:41 40m -15 / - DL8TT - / +6 3 ✓ Closing fragment
08-19 19:40 40m -10 / - SN1A - / +3 2 Partial capture
08-19 19:27 40m -12 / - <...> - / -23 2 Partial capture
08-19 19:25 40m - / +1 IZ5MMT 0 / - 2 ✓ Closing fragment
08-18 19:44 40m - / - DK3ME -11 / - 4 Partial capture
08-18 19:42 40m -15 / - M7PCE - / -5 2 ✓ Closing fragment
08-18 19:41 40m -20 / - G1DPI - / -22 2 Partial capture
08-18 19:35 40m -6 / - G0WTZ - / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
225515  -8  665  4X5JK DL7ROB R-07 (x4)
060500  -7 1902  CQ DL7ROB JN58                        a1
060845  -8 1221  HA1BF DL7ROB JN58
060900  +6 1221  DL7ROB HA1BF +09 (x9)
20m
UTC    dB Audio  Message
055645 +10 2857  DL7ROB R3NCG -15 (x13)
191515  +0 2636  DL7ROB MW1CFA -06 (x2)
10m
UTC    dB Audio  Message
093700 -18 2325  SQ8AA DL7ROB JN58
093745  -5 2831  DL7ROB SV3GKU -09
093800  -2 2831  SV3GKU DL7ROB R-22
093815  +1 2831  DL7ROB SV3GKU RR73
093830  -6 2832  SV3GKU DL7ROB 73
094215 -17 1551  DL7ROB YO3OBB +00 (x2)
094445 -18 1409  EK1KE DL7ROB JN58
094645 -12 2423  D2UY DL7ROB JN58 (x3)
094900 -18 1647  DL7ROB LZ4VR KN13 (x2)
094945 -12 2422  LZ4VR DL7ROB RR73
131945  +4  664  DL7ROB SV1CQN -05

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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