DF1MM — 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: Fed. Rep. of Germany Most frequent locator attributed to this token: JO43

Receiver-side FT8 activity involving DF1MM, decoded by SO8OO in southeastern Poland. 150 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-11-02.

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 150 FT8 messages attributed to DF1MM as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (60%), followed by 80 m (17%) and 20 m (7%). Several six-hour UTC windows tied for the largest share (74%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (72%); the estimated median was -5 dB.

Overview

150
Messages attributed
7
UTC dates decoded
22
Active 15-min windows
-5 dB
Estimated median S/N

Bands

160m · 9 80m · 25 60m · 4 40m · 90 20m · 11 10m · 11
First attributed message: 2026-06-06
Last attributed message: 2026-11-02 18:44 UTC

Observed FT8 message patterns

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

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 8, moderate (-15 to -9 dB) 34, strong (≥ -8 dB) 108.

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 DF1MM in decoded directed-looking exchanges:

Most frequent locator attributed to DF1MM

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
JO43 · 95 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
964 km (approx.)
Last such locator decoded
2026-11-02 18:44 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 UTCBandDF1MM S/NCounterpartCounterpart S/NMsgsCapture
11-02 18:44 160m - / -18 IK3/UY7LA -12 / - 3 Partial capture
11-02 18:39 160m -15 / -9 YL3CW +12 / - 3 ✓ Closing observed
11-02 18:19 160m -12 / -12 OE2CAL -16 / - 4 Partial capture
11-02 18:13 160m -19 / -21 OH5KNL +2 / -17 7 ✓ Full exchange observed
11-02 18:08 160m - / +10 DK7ZT -6 / - 6 ✓ Closing fragment
11-02 18:08 160m - / -10 OK1DXR -4 / - 5 ✓ Closing fragment
11-02 18:08 160m - / -14 YO9HP +1 / - 2 Partial capture
11-02 18:07 160m - / -3 OZ5AGJ -14 / - 3 Partial capture
11-02 18:06 160m - / -1 SP6IHE +3 / - 2 ✓ Closing fragment
11-02 18:04 160m -14 / - SP3BPU - / - 2 Partial capture
11-02 17:58 80m - / -11 E70SZ +7 / - 4 ✓ Closing fragment
11-02 17:53 80m - / -3 LY3PW -1 / - 2 Partial capture
11-02 17:20 80m - / - DL0HAM +14 / - 7 Partial capture
11-02 17:20 80m - / - YL2GJX +6 / - 4 Partial capture
11-02 17:18 80m -6 / -10 HA7KLA +6 / -15 4 Partial capture

Recent FT8 messages decoded at SO8OO

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

160m 
UTC    dB Audio  Message
181515 -19  866  OH5KNL DF1MM 73
181530  +1 2052  DF1MM OH5KNL 73
181815 -11 2200  DF1MM IW4AOT -18
181900 -14  867  OE2CAL DF1MM JO43 (x2)
182015 -20 1686  DF1MM OE2CAL -12 (x2)
183915 -15 1162  YL3CW DF1MM JO43
183930 +12 2379  DF1MM YL3CW -09 (x2)
184400 -23 2138  DF1MM OZ2LP +04
184400 -13 1163  EM70WWW DF1MM JO43
184415 -13 1155  DF1MM IK3/UY7LA -18 (x3)
80m 
UTC    dB Audio  Message
172045 +21 2483  DF1MM DL0HAM +19
172115  +0 2556  DF1MM YL2GJX KO26
172115 +13 2482  DF1MM DL0HAM +19
172145  +8 2556  DF1MM YL2GJX KO26
172145  +9 2482  DF1MM DL0HAM +19 (x5)
175330  -4 1422  DF1MM LY3PW -03 (x2)
175845 +12 1165  DF1MM E70SZ -11 (x4)

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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