DO7RMS — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO71

Receiver-side FT8 activity involving DO7RMS, decoded by SO8OO in southeastern Poland. 1,065 FT8 messages attributed to this token as transmitter, on 160m, 80m, 10m, across 14 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-09-07.

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 1,065 FT8 messages attributed to DO7RMS as the transmitting token by decoded message structure across 14 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (73%), followed by 160 m (19%) and 10 m (8%). Most decodes (66%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (68%); the estimated median was -5 dB.

Overview

1,065
Messages attributed
14
UTC dates decoded
69
Active 15-min windows
-5 dB
Estimated median S/N

Bands

160m · 198 80m · 779 10m · 88
First attributed message: 2026-06-08
Last attributed message: 2026-09-07 05:50 UTC

Observed FT8 message patterns

Attributed sample
1,065 messages
Active dates
14 UTC dates
Estimated median S/N
-5 dB
Estimated 10th-90th percentile
-14 to +2 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 71, moderate (-15 to -9 dB) 268, strong (≥ -8 dB) 726.

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 DO7RMS 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 DO7RMS

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
JO71 · 621 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
508 km (approx.)
Last such locator decoded
2026-09-07 05:49 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 UTCBandDO7RMS S/NCounterpartCounterpart S/NMsgsCapture
09-07 05:49 80m -9 / - PA5KK -9 / -6 4 ✓ Closing observed
09-07 05:38 80m -6 / - SP3SXS - / - 2 Partial capture
09-07 05:36 80m -5 / - DL8OCI +4 / 0 4 ✓ Closing observed
09-07 05:25 80m -7 / - EA6Y -17 / -8 7 Partial capture
09-07 05:24 80m -2 / +3 DK5DW -19 / -9 4 ✓ Full exchange observed
09-07 05:20 80m -14 / - HF100PKP - / +2 2 Partial capture
09-07 05:15 80m +1 / -5 DO1OAS -11 / - 3 ✓ Closing observed
09-07 05:14 80m -9 / -1 PA0O +12 / 0 6 ✓ Full exchange observed
09-07 05:12 80m -5 / +2 HA3HX -4 / +2 5 ✓ Full exchange observed
09-06 16:58 80m - / - DL2ZJA -1 / - 4 Partial capture
09-06 16:52 80m -10 / - OH6CXP - / - 2 Partial capture
09-06 16:49 80m +2 / - OZ7CL - / -6 3 ✓ Closing fragment
09-06 16:47 80m -11 / - OH3CD -14 / -10 3 ✓ Closing observed
09-06 16:44 80m -10 / - SP9GCZ +1 / +5 5 ✓ Full exchange observed
09-06 16:39 160m -8 / - DO1SJF - / -3 5 Partial capture
09-06 16:36 160m - / +5 OK1DXR -17 / - 3 ✓ Closing fragment
09-06 16:35 160m - / 0 OK1TP +2 / - 2 ✓ Closing fragment
09-04 17:42 80m +5 / +9 DK2SHS +11 / - 3 ✓ Closing observed
09-04 17:39 80m - / +1 DL4KBK -4 / - 2 ✓ Closing fragment
09-03 08:26 10m - / -9 IS0AWZ -12 / - 2 ✓ Closing fragment
09-03 05:57 80m -16 / -16 YU5DR -20 / -16 4 ✓ Full exchange observed
09-03 05:53 80m -19 / -14 OK1JMB -15 / +2 6 ✓ Full exchange observed
09-03 05:52 80m -21 / - SP100PKP +10 / - 2 Partial capture
09-03 05:42 80m -17 / - M8FQT - / -14 7 Partial capture
09-03 05:35 80m -12 / -2 DL8TV -12 / - 4 ✓ Closing observed
09-03 05:30 80m -17 / - F4GUK -19 / - 3 ✓ Closing observed
09-03 05:20 80m -14 / - SP3AVS - / -10 2 ✓ Closing fragment
09-03 05:13 80m -6 / - DL0MLU -18 / -1 4 ✓ Closing observed
09-03 05:08 80m -10 / +2 SP3OKU +6 / +4 5 ✓ Full exchange observed
09-03 05:06 80m -12 / -11 DO2KTE -17 / +4 5 ✓ Full exchange observed
09-03 04:56 80m -5 / - DA6DE - / -9 3 ✓ Closing fragment
09-03 04:50 80m -18 / -11 F5RQQ -14 / -2 13 ✓ Full exchange observed
09-03 04:49 80m -14 / - DL1RNW - / - 2 Partial capture
09-03 04:47 80m -14 / -3 SP7FFY +15 / -2 5 ✓ Full exchange observed
09-03 04:46 80m -4 / - SQ3POU - / - 2 Partial capture
09-03 04:44 80m -12 / +4 DL2DBH -11 / -2 4 ✓ Full exchange observed
09-03 04:41 80m +2 / -6 DO5WG -14 / +1 6 ✓ Full exchange observed
09-03 04:40 80m -1 / -2 F1PBZ -14 / +1 4 ✓ Full exchange observed
09-03 04:35 80m -6 / -8 ON8DM -1 / -3 4 ✓ Full exchange observed
09-03 04:34 80m -2 / - DO4EB - / -2 3 ✓ Closing fragment
09-03 04:32 80m -2 / - <...> - / - 2 Partial capture
08-28 09:46 10m - / -10 F1PBZ -2 / - 2 ✓ Closing fragment
08-28 09:23 10m - / -6 IK2GAU +4 / - 2 ✓ Closing fragment
08-28 09:14 10m - / - IU4PPL -19 / - 2 ✓ Closing fragment
08-28 09:09 10m - / -2 IZ4CCL -8 / - 2 ✓ Closing fragment
08-28 08:54 10m - / -17 RV5K -16 / - 2 ✓ Closing fragment
08-28 08:14 10m - / -1 F5MYH -7 / - 3 ✓ Closing fragment
08-26 17:30 10m - / -7 D2ACE -10 / - 2 ✓ Closing fragment
08-26 17:27 80m -5 / -3 ES2AJ +11 / 0 4 ✓ Full exchange observed
08-26 17:25 80m -12 / -8 IZ7NLJ +14 / -1 5 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
054130  +7 2000  DO7RMS SN100PKP +12
054145  +6  565  R9CS/P DO7RMS R-06
054315  -3  900  ON6AA DO7RMS JO71
054345  +4  899  CQ DO7RMS JO71 (x8)
054900 -10  900  PA5KK DO7RMS JO71 (x2)
054945  -9 1604  DO7RMS PA5KK RR73
055000 -14  900  PA5KK DO7RMS 73
160m 
UTC    dB Audio  Message
202215  -3 1143  G7RAU DO7RMS JO71 (x3)
171630  +1  998  DO7RMS SP4LVG KO13 (x2)
163545  +4 1821  DO7RMS OK1TP +00 (x2)
163645 -16 1295  DO7RMS OK1DXR JO60 (x3)
163930  -8  478  DO1SJF DO7RMS JO71 (x5)
10m 
UTC    dB Audio  Message
085445 -19 1364  DO7RMS RV5K -17 (x2)
090915 -10 2287  DO7RMS IZ4CCL -02 (x2)
091430 -22 1308  DO7RMS IU4PPL JN54 (x2)
092030  +7  557  DO7RMS Z34K -08
092330  +5 2178  DO7RMS IK2GAU -06 (x2)
092530 -19 2122  DO7RMS IK2TTJ +14
094615  +0 2635  DO7RMS F1PBZ -10 (x2)
104830 -17 2318  CQ DO7RMS JO71                        a1
082645 -10 1337  DO7RMS IS0AWZ -09 (x2)
40m 
UTC    dB Audio  Message
204130  -1  368  DO7RMS 9A4ZM JN86 (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.

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