DK7ZT — 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 DK7ZT, decoded by SO8OO in southeastern Poland. 85,145 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 125 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-11-05.

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 85,145 FT8 messages attributed to DK7ZT as the transmitting token by decoded message structure across 125 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (48%), followed by 80 m (27%) and 160 m (10%). The busiest six-hour window was 17:00-23:00 UTC, containing 40% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -6 dB.

Overview

85,145
Messages attributed
125
UTC dates decoded
7,931
Active 15-min windows
-6 dB
Estimated median S/N

Bands

First attributed message: 2026-06-06
Last attributed message: 2026-11-05 06:00 UTC

Observed FT8 message patterns

Attributed sample
85,145 messages
Active dates
125 UTC dates
Estimated median S/N
-6 dB
Estimated 10th-90th percentile
-19 to +6 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 17,060, moderate (-15 to -9 dB) 19,456, strong (≥ -8 dB) 48,629.

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.

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 DK7ZT

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 · 2,699 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
911 km (approx.)
Last such locator decoded
2026-11-05 05:58 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 UTCBandDK7ZT S/NCounterpartCounterpart S/NMsgsCapture
11-05 06:00 160m -4 / - MW7TTA - / -5 2 ✓ Closing fragment
11-05 05:58 160m -5 / - W1TXT - / -18 4 ✓ Closing fragment
11-05 05:51 160m -7 / - N3CZ - / -21 9 ✓ Closing fragment
11-05 05:49 160m -11 / - KQ4AV - / -25 4 ✓ Closing fragment
11-05 05:45 160m -14 / - 6W/IK2HKT - / - 4 Partial capture
11-05 05:36 160m -1 / - IC8JAH - / -6 4 ✓ Closing fragment
11-05 05:30 160m -5 / - KE4EB - / - 10 Partial capture
11-05 05:21 160m -8 / - 6W/IK2HKT - / - 9 Partial capture
11-05 05:18 160m -5 / -10 EA7BUU -10 / +9 6 ✓ Full exchange observed
11-05 05:15 160m -14 / - 6W/IK2HKT - / - 4 Partial capture
11-05 05:11 160m -11 / -10 IZ3EAX -15 / +6 4 ✓ Full exchange observed
11-05 04:59 160m -10 / - 6W/IK2HKT - / - 18 Partial capture
11-05 04:56 160m -15 / - SP/DL5DBO - / - 5 Partial capture
11-05 04:47 160m -11 / - SP/DL5DBO - / - 10 Partial capture
11-05 04:44 160m -10 / - N1MIW - / -13 5 ✓ Closing fragment
11-05 04:37 160m -12 / - SP/DL5DBO - / - 11 Partial capture
11-05 04:35 160m -4 / - N1WI - / -16 4 ✓ Closing fragment
11-05 04:29 160m -4 / - SP/DL5DBO - / - 11 Partial capture
11-05 04:26 160m -8 / - SP/DL5DBO - / - 2 Partial capture
11-05 04:24 160m +5 / - W3FR - / -25 3 ✓ Closing fragment
11-05 04:21 160m +7 / - SV3ICK - / - 2 Partial capture
11-05 04:07 160m -6 / - SP/DL5DBO - / - 25 Partial capture
11-05 04:05 160m -7 / - K3EA - / - 4 Partial capture
11-05 03:37 160m -7 / - SP/DL5DBO - / - 42 Partial capture
11-05 03:34 160m -4 / - RW6MZ - / - 5 Partial capture
11-05 03:19 160m -4 / - SP/DL5DBO - / - 28 Partial capture
11-05 03:10 160m -10 / - R6UA - / - 5 Partial capture
11-05 03:08 160m -10 / - SP/DL5DBO - / - 5 Partial capture
11-05 03:06 160m -9 / - R6UA - / - 4 Partial capture
11-05 03:03 160m -5 / - SP/DL5DBO - / - 5 Partial capture
11-05 02:58 160m -4 / - R6UA - / - 10 Partial capture
11-05 02:55 160m -2 / - SP/DL5DBO - / - 5 Partial capture
11-05 02:54 160m -2 / -15 RA3XDX +6 / +3 3 ✓ Full exchange observed
11-05 02:51 160m -3 / - R6UA - / - 5 Partial capture
11-05 02:38 160m -2 / - SP/DL5DBO - / - 25 Partial capture
11-05 02:33 160m 0 / - R6UA - / - 10 Partial capture
11-05 02:31 160m -2 / - SP/DL5DBO - / - 5 Partial capture
11-05 02:28 160m -4 / - R6UA - / - 5 Partial capture
11-05 02:24 160m -5 / - SP/DL5DBO - / - 5 Partial capture
11-05 02:22 160m -1 / - R6UA - / - 5 Partial capture
11-05 02:19 160m -4 / - SP/DL5DBO - / - 5 Partial capture
11-05 01:49 160m 0 / - R6UA - / - 55 Partial capture
11-05 01:46 160m -2 / - N4ML - / -4 6 ✓ Closing fragment
11-05 01:44 160m -1 / - R6UA - / - 5 Partial capture
11-05 01:39 160m -2 / - RK3AW/P - / - 10 Partial capture
11-05 01:29 160m -6 / - R6UA - / - 19 Partial capture
11-05 01:26 160m -7 / - 6W/IK2HKT - / - 3 Partial capture
11-05 01:24 160m +1 / - W0UC - / - 5 Partial capture
11-05 01:19 160m -8 / - R6UA - / - 5 Partial capture
11-05 01:09 160m -2 / - 6W/IK2HKT - / - 17 Partial capture

Recent FT8 messages decoded at SO8OO

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

160m
UTC    dB Audio  Message
055115  -5 1957  N3CZ DK7ZT JO40 (x9)
055815  -4 1959  W1TXT DK7ZT JO40 (x4)
060015  -4 1959  MW7TTA DK7ZT -05 (x2)
80m
UTC    dB Audio  Message
194715  -9 1770  DK7ZT HB0PA +16
194730  -5 1856  HB0PA DK7ZT R+09 (x2)
195100  -7 1856  R8XF/P DK7ZT JO40 (x12)
60m
UTC    dB Audio  Message
062715  -7 1902  M3VNI DK7ZT +11 (x9)
070945 -14 1902  G0MIE/QRP DK7ZT -12 (x3)
142630 -16 1902  PA4AV DK7ZT -12 (x3)
40m
UTC    dB Audio  Message
130030 -18 1907  DG7EKJ DK7ZT +12 (x2)
130130 -15 1907  YP40CSM DK7ZT -14
130945 -14 1907  YD3CQX DK7ZT -21
131115 -18 1907  RW3BK DK7ZT -04 (x6)
134000 -16 1906  M7FSE DK7ZT +01
134715 -19 1907  M7OZL DK7ZT +14 (x2)
140630 -17 1907  M7FSE DK7ZT -02 (x2)
10m
UTC    dB Audio  Message
084915 -13 2290  DK7ZT IZ4CCL 73
091630 +10  557  DK7ZT Z34K R-15 (x3)
093245 -11 2176  DK7ZT IU2IKT R+01
093800  -6  766  DK7ZT IZ5IME R+10 (x2)
103315 -18 1489  DK7ZT IK1LBL R-11 (x2)
104500 -11  610  IZ4TOA DK7ZT +03 (x2)
104615  +4  609  DK7ZT IZ4TOA R-11 (x2)
142700  +3 2737  DK7ZT CN8WK R-10
114500 -23 1595  DK7ZT CR7BUW R-16
20m
UTC    dB Audio  Message
232230 -19 1395  K4HFY DK7ZT -16 (x3)
232400 -17 1395  K2VG DK7ZT -18 (x4)
232930 -13 1927  N9SNU DK7ZT -09 (x3)
233145 -17 1843  K4KEV DK7ZT -07 (x3)
233700  -4 2009  ZZ2DX DK7ZT -18 (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

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee