DH1DH — 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: JN58

Receiver-side FT8 activity involving DH1DH, decoded by SO8OO in southeastern Poland. 44 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-16.

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 44 FT8 messages attributed to DH1DH as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (91%), followed by 20 m (9%). Several six-hour UTC windows tied for the largest share (77%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -16 dB.

Overview

44
Messages attributed
4
UTC dates decoded
13
Active 15-min windows
-16 dB
Estimated median S/N

Bands

40m · 40 20m · 4
First attributed message: 2026-06-07
Last attributed message: 2026-10-16 17:23 UTC

Observed FT8 message patterns

Attributed sample
44 messages
Active dates
4 UTC dates
Estimated median S/N
-16 dB
Estimated 10th-90th percentile
-22 to -3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 24, moderate (-15 to -9 dB) 12, strong (≥ -8 dB) 8.

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 DH1DH 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 DH1DH

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 · 16 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
799 km (approx.)
Last such locator decoded
2026-10-16 17:22 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 UTCBandDH1DH S/NCounterpartCounterpart S/NMsgsCapture
10-16 17:22 40m -8 / - 9A2DM - / - 2 ✓ Closing fragment
10-16 17:20 40m +1 / - GW5VOG - / +4 2 ✓ Closing fragment
10-16 17:18 40m 0 / - PD2RM - / +5 3 ✓ Closing fragment
10-10 09:29 40m -20 / - DL1NB -20 / - 2 ✓ Closing observed
10-10 08:38 40m -18 / - F4MLW -17 / +7 4 ✓ Closing observed
10-10 08:36 40m -19 / - DK8HC/P - / +4 2 ✓ Closing fragment
10-10 08:25 40m - / -15 DK8HC/P -11 / - 2 Partial capture
10-10 08:24 40m -20 / - IU2THY -8 / - 3 ✓ Closing observed
10-10 08:05 40m -17 / +8 S51TN -6 / +9 5 ✓ Full exchange observed
10-10 08:02 40m -16 / - G4HUE - / +4 2 Partial capture
10-10 08:01 40m -16 / - IK0XBU/P - / -11 2 ✓ Closing fragment
10-10 08:00 40m -16 / -1 DF0AWG +5 / - 4 ✓ Full exchange observed
09-20 10:03 40m - / 0 F4DIA -20 / - 2 ✓ Closing fragment
09-20 09:58 40m - / -12 DF0PDF -8 / - 2 ✓ Closing fragment
08-23 10:18 20m - / -6 DA1JB -6 / - 2 ✓ Closing fragment
08-23 10:07 20m - / +3 M0LAD -8 / - 3 ✓ Closing fragment
08-20 08:30 20m - / -9 RA3DAD -2 / - 2 ✓ Closing fragment
08-20 08:15 20m -22 / +1 T77RN -6 / -4 4 ✓ Full exchange observed
08-20 08:11 20m -20 / - IK2UCL -14 / -24 5 ✓ Full exchange observed
08-20 07:32 40m -12 / - OZ6MM - / -12 3 ✓ Closing fragment
08-20 07:30 40m -12 / +1 DH9DR -16 / - 4 ✓ Closing observed
08-20 07:08 40m -22 / -18 HA3GO -7 / - 5 ✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
083900 -17 2261  DH1DH F4MLW RR73
083915 -18 2261  F4MLW DH1DH 73
091800 -11 2392  DH1DH DA125RH +00
091815 -15 2260  DK8HC/P DH1DH R-01
092100 -22 2261  ON5VKE DH1DH JN58
092930 -20 2260  DL1NB DH1DH RR73
092945 -20 2261  DH1DH DL1NB 73
093100 -17 2260  F4MGP DH1DH RR73
171845  +2 2262  PD2RM DH1DH JN58 (x3)
172045  +5 2262  GW5VOG DH1DH +04 (x2)
172200  -8 2262  9A2DM DH1DH JN58 (x2)
20m 
UTC    dB Audio  Message
081315  -9 1292  DH1DH IK2UCL +12 (x2)
081545 -24 2121  T77RN DH1DH JN58
081630  -7  436  DH1DH T77RN +01
081645 -19 2120  T77RN DH1DH R-04
081700  -4  436  DH1DH T77RN RR73
083000  +0  651  DH1DH RA3DAD -09 (x2)
083215 -16 2228  TF5B DH1DH JN58
100745  -5 2214  DH1DH M0LAD +03 (x3)
101630 +20 2883  DH1DH LZ1EV RR73
101800  -6 1188  DH1DH DA1JB -06 (x2)

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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