DA1MHH — 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: JO31

Receiver-side FT8 activity involving DA1MHH, decoded by SO8OO in southeastern Poland. 2,079 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 53 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-17.

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 2,079 FT8 messages attributed to DA1MHH as the transmitting token by decoded message structure across 53 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (78%), followed by 40 m (21%) and 10 m (1%). The busiest six-hour window was 05:00-11:00 UTC, containing 47% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.

Overview

2,079
Messages attributed
53
UTC dates decoded
357
Active 15-min windows
-12 dB
Estimated median S/N

Bands

40m · 438 20m · 1,630 10m · 11
First attributed message: 2026-06-06
Last attributed message: 2026-10-17 05:52 UTC

Observed FT8 message patterns

Attributed sample
2,079 messages
Active dates
53 UTC dates
Estimated median S/N
-12 dB
Estimated 10th-90th percentile
-21 to -2 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 691, moderate (-15 to -9 dB) 723, strong (≥ -8 dB) 665.

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 DA1MHH 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 DA1MHH

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
JO31 · 961 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,054 km (approx.)
Last such locator decoded
2026-10-17 05:52 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 UTCBandDA1MHH S/NCounterpartCounterpart S/NMsgsCapture
10-17 05:50 40m - / - F4BYA +4 / - 3 Partial capture
10-17 05:37 40m -3 / - RA5O - / -16 3 Partial capture
10-17 05:34 40m -1 / - R2RCQ - / -19 5 Partial capture
10-17 05:33 40m 0 / - EA4EQ - / -20 3 ✓ Closing fragment
10-17 05:31 40m 0 / - CR7BRV -12 / -22 4 ✓ Closing observed
10-17 05:28 40m -2 / - UA3YPS - / -16 5 Partial capture
10-17 04:57 40m -20 / - E75W - / -13 4 Partial capture
10-17 04:54 40m -21 / -4 Z34K +4 / -15 5 ✓ Full exchange observed
10-16 09:48 40m -16 / - LX1RFJ - / -19 3 Partial capture
10-16 08:29 40m - / +6 IK2ZJR -10 / - 3 ✓ Closing fragment
10-16 08:27 40m - / -11 HB9ELE 0 / - 3 ✓ Closing fragment
10-16 07:45 40m - / -15 HG5OGI 0 / - 2 ✓ Closing fragment
10-16 07:42 40m - / -5 GJ0KYZ -15 / - 2 ✓ Closing fragment
10-16 07:42 40m -6 / - G0HSP -13 / -15 2 ✓ Closing observed
10-16 07:07 40m -7 / - KR4HRN - / -22 2 Partial capture
10-16 07:03 40m -10 / - LA1AAA - / -13 4 Partial capture
10-16 07:01 40m -8 / - UA2FFD - / -19 5 Partial capture
10-16 06:52 40m - / -9 E71DOC -8 / - 2 Partial capture
10-16 05:36 40m -14 / - OH5VT - / -16 4 Partial capture
10-16 05:33 40m -19 / - VE2LBI - / -23 2 Partial capture
10-16 05:26 40m -7 / - R4OF - / -19 4 ✓ Closing fragment
10-16 05:23 40m -4 / - RA3X - / -23 5 Partial capture
10-16 05:21 40m -6 / - WE0D - / -17 3 Partial capture
10-16 05:09 40m -18 / - KA1MXL - / -20 4 Partial capture
10-16 05:07 40m -16 / -7 R2EA/P -4 / -5 2 Partial capture
10-16 05:05 40m - / -10 EG46PPA -8 / - 3 Partial capture
10-16 05:03 40m - / -14 CT7AUT -13 / - 3 Partial capture
10-15 15:11 40m -6 / - HA1BF - / -16 2 Partial capture
10-15 15:04 40m -10 / - R8OAE - / -18 2 Partial capture
10-11 05:56 40m -15 / - R6DOB/M - / -23 3 Partial capture
10-11 05:47 40m - / -3 AM5CV 0 / - 2 ✓ Closing fragment
10-11 05:43 40m - / -6 OH3OJ +4 / - 2 Partial capture
10-10 11:11 40m - / -19 9A3AUH -2 / - 2 ✓ Closing fragment
10-10 06:13 40m - / -14 IU5AWQ -9 / - 4 ✓ Closing fragment
10-10 06:01 40m -15 / - YY5EHT - / -13 2 Partial capture
10-10 04:18 40m - / -17 RA3DFQ -1 / - 3 ✓ Closing fragment
10-10 04:11 40m - / -24 TA2VUZ -10 / - 6 Partial capture
10-10 03:37 40m - / - RZ4FWA -13 / - 3 Partial capture
10-10 03:25 40m - / -11 IU8RFW -10 / - 4 ✓ Closing fragment
10-10 03:16 40m -10 / -13 EA7R -8 / -18 3 Partial capture
10-10 03:11 40m - / - UB4CJS -3 / - 2 ✓ Closing fragment
10-09 16:16 40m -19 / - R6DJR 0 / -16 4 ✓ Closing observed
10-09 15:29 40m - / -7 DD7BW -5 / - 3 ✓ Closing fragment
10-09 01:29 40m - / - F4FPR 0 / - 4 Partial capture
10-09 01:10 40m - / - RZ4FWA -22 / - 2 Partial capture
10-09 01:05 40m - / -18 LZ2VQ -16 / - 2 ✓ Closing fragment
09-11 08:02 40m - / - DL7DF -9 / - 16 Partial capture
09-10 15:00 40m -8 / -22 DL7DF -5 / -25 27 ✓ Full exchange observed
09-10 14:45 40m -12 / - R9RA - / - 3 Partial capture
09-10 14:35 40m -8 / - EA4GA/P - / - 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
053445  +0  367  R2RCQ DA1MHH -19 (x5)
053730  +0  366  RA5O DA1MHH -16 (x3)
055030 -19 1817  CQ DA1MHH JO31
055045  +7 2982  DA1MHH F4BYA JN19
055100 -11 1817  CQ DA1MHH JO31
055115  +3 2982  DA1MHH F4BYA JN19
055130 -12 1816  CQ DA1MHH JO31
055145  +2 2982  DA1MHH F4BYA JN19
055200 -12 1817  CQ DA1MHH JO31
20m 
UTC    dB Audio  Message
163930  -3  583  F4HTA DA1MHH JO31 (x2)
164330 -11  449  9A4AA DA1MHH JO31 (x3)
164545  -3 2547  IU3UJO DA1MHH JO31 (x6)
164945  +0 1746  EA5KB DA1MHH JO31 (x3)
165145  -5  814  <...> DA1MHH JO31

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.

CW

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

Explore CW reception at SO8OO

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