DH1TZ — 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: JO40

Receiver-side FT8 activity involving DH1TZ, decoded by SO8OO in southeastern Poland. 226 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 23 UTC dates in the available aggregate history. Observed between 2026-07-15 and 2026-11-01.

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 226 FT8 messages attributed to DH1TZ as the transmitting token by decoded message structure across 23 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (39%), followed by 40 m (34%) and 80 m (24%). Most decodes (73%) fell within the six-hour window 04:00-10:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.

Overview

226
Messages attributed
23
UTC dates decoded
45
Active 15-min windows
-8 dB
Estimated median S/N

Bands

80m · 54 40m · 76 20m · 89 10m · 7
First attributed message: 2026-07-15
Last attributed message: 2026-11-01 16:44 UTC

Observed FT8 message patterns

Attributed sample
226 messages
Active dates
23 UTC dates
Estimated median S/N
-8 dB
Estimated 10th-90th percentile
-18 to +3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 37, moderate (-15 to -9 dB) 69, strong (≥ -8 dB) 120.

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 DH1TZ 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 DH1TZ

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
JO40 · 130 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
911 km (approx.)
Last such locator decoded
2026-11-01 16:43 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 UTCBandDH1TZ S/NCounterpartCounterpart S/NMsgsCapture
11-01 16:43 80m -6 / - PH26BOO - / -5 2 Partial capture
10-28 05:51 80m -5 / +7 IQ0AAI -14 / -6 5 ✓ Full exchange observed
10-28 05:48 80m -4 / -20 PE1NPS -6 / - 4 ✓ Closing observed
10-28 05:47 80m +1 / +1 DK3RW -17 / - 5 ✓ Full exchange observed
10-28 05:42 40m - / - RA3YAO -7 / - 4 Partial capture
10-28 05:40 40m -9 / - IQ0AK - / +6 3 ✓ Closing fragment
10-21 04:33 80m - / - US2YW -1 / - 3 Partial capture
10-21 04:31 80m -9 / - EA7Z -14 / -24 2 Partial capture
10-14 05:05 80m 0 / -3 DF4WQ -2 / - 5 ✓ Full exchange observed
10-14 05:03 80m -15 / - II5GG - / +5 3 ✓ Closing fragment
10-14 04:57 80m -16 / -13 GU4WRP -8 / -5 4 ✓ Full exchange observed
10-08 05:40 80m - / - F5RAV -4 / - 2 Partial capture
10-08 05:37 80m - / -18 GW4HZA -18 / - 2 ✓ Closing fragment
10-08 05:16 80m -7 / - KF8EXX - / - 2 Partial capture
10-08 05:01 80m -11 / - MI0NWA - / -11 3 ✓ Closing fragment
10-08 04:48 80m -10 / -10 G0BLB -6 / - 5 ✓ Closing observed
10-08 04:47 80m -8 / - UA9XL/M - / -2 2 Partial capture
10-02 05:42 40m -6 / - PD00DOG - / -6 6 Partial capture
09-03 05:38 40m +2 / - IR7MGGC - / -9 8 Partial capture
09-03 05:34 40m - / +1 SM7WNM -19 / - 2 ✓ Closing fragment
09-03 05:32 40m -10 / +2 II7MGBA -4 / -7 4 Partial capture
09-03 05:32 40m -6 / -3 IR7MGGC -15 / +3 3 ✓ Full exchange observed
09-03 05:31 40m -8 / - W1AW/0 - / - 2 Partial capture
08-31 07:10 20m -16 / - <...> - / - 2 Partial capture
08-31 05:23 40m - / - R2AL +2 / - 3 Partial capture
08-31 05:20 40m - / -13 II7MGXX -10 / - 2 Partial capture
08-31 05:20 40m -3 / - II7MGLE - / -13 5 Partial capture
08-29 17:23 40m +7 / - <...> - / -3 2 Partial capture
08-29 15:30 40m -2 / - G4DBW -10 / -5 3 ✓ Closing observed
08-29 15:28 40m 0 / - R3RRC/1 - / -6 3 Partial capture
08-27 19:10 80m 0 / - II7MGXX - / -3 7 Partial capture
08-27 18:43 40m 0 / - <...> - / +4 3 Partial capture
08-25 05:39 20m -12 / - II7MGLE - / - 3 Partial capture
08-25 05:22 40m +2 / - <...> - / +2 3 Partial capture
08-24 19:32 40m +4 / -6 II7MGBT +3 / 0 3 Partial capture
08-24 19:31 40m +4 / - <...> - / +7 2 Partial capture
08-24 14:28 20m -7 / - OK5AG/P - / - 2 Partial capture
08-24 14:25 20m -11 / - <...> - / - 4 Partial capture
08-24 05:01 40m 0 / - <...> - / +4 4 Partial capture
08-24 04:54 40m +5 / - <...> - / - 3 Partial capture
08-23 19:11 80m -6 / - II7MGBA - / - 5 Partial capture
08-23 19:09 80m -11 / - <...> - / - 2 Partial capture
08-23 19:01 40m 0 / - <...> - / +6 2 Partial capture
08-23 18:51 40m +10 / -4 II7MGBT -9 / +10 11 Partial capture
08-22 14:40 20m -19 / - <...> - / -13 3 Partial capture
08-22 09:23 10m -16 / - SV4DCQ - / - 7 Partial capture
08-20 18:26 20m -6 / - BU2FW - / - 3 ✓ Closing fragment
08-19 04:23 80m -15 / -1 SQ2BXI +18 / -5 5 ✓ Full exchange observed
08-19 04:21 80m - / -7 9A60CBM 0 / - 2 Partial capture
08-19 04:21 80m -15 / - <...> - / -11 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
054800 -17 2409  DH1TZ DK3RW RR73
054815  -3 1964  DK3RW DH1TZ 73
054830  -3  637  DH1TZ PE1NPS JO22
054830 -18 1964  DH1TZ LZ2VQ KN23
054900  -4  637  DH1TZ PE1NPS R-20
054915  -4 1964  PE1NPS DH1TZ RR73
054930 -11  637  DH1TZ PE1NPS 73
055115  +0 1964  IQ0AAI DH1TZ JO40
055130 -15  699  DH1TZ IQ0AAI +07
055145  -4 1964  IQ0AAI DH1TZ R-06
055200 -12  699  DH1TZ IQ0AAI RR73
055215 -10 1964  IQ0AAI DH1TZ 73
164300  -4 1352  PH26BOO DH1TZ JO40
164415 -10 1301  DH1TZ II4GCLB -04
164430  -8 1351  PH26BOO DH1TZ R-05
40m 
UTC    dB Audio  Message
054230  +7 1634  IR7MGGC DH1TZ R-09
054245  -9 1297  PD00DOG DH1TZ JO40 (x4)
054430 -16 2251  DH1TZ II4NTTI -05
054445  -6 1298  PD00DOG DH1TZ R-06 (x2)
054015  -6 1125  IQ0AK DH1TZ JO40 (x3)
054200  -7 2058  DH1TZ RA3YAO KO73 (x4)
20m 
UTC    dB Audio  Message
144145 -13 1868  <...> DH1TZ R-13
123500  -6 2664  DH1TZ <...> -19
142530 -11  970  <...> DH1TZ JO40 (x4)
142830  -7 1871  OK5AG/P DH1TZ JO40 (x2)
053330  -8 1364  EN35UKR DH1TZ JO40
053915  -9 1364  II7MGLE DH1TZ JO40 (x3)
121230 -16 1024  DH1TZ <...> +08
071030 -16 1131  <...> DH1TZ JO40 (x2)
10m 
UTC    dB Audio  Message
092345 -18 1050  SV4DCQ DH1TZ JO40 (x7)

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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