Z3/DD3ZZ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: North Macedonia

Receiver-side FT8 activity involving Z3/DD3ZZ, decoded by SO8OO in southeastern Poland. 57 FT8 messages attributed to this token as transmitter, on 40m, across 5 UTC dates in the available aggregate history. Observed between 2026-09-06 and 2026-09-11.

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 57 FT8 messages attributed to Z3/DD3ZZ as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). Most decodes (54%) fell within the six-hour window 15:00-21:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

57
Messages attributed
5
UTC dates decoded
12
Active 15-min windows
-10 dB
Estimated median S/N

Bands

First attributed message: 2026-09-06
Last attributed message: 2026-09-11 20:56 UTC

Observed FT8 message patterns

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

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 12, moderate (-15 to -9 dB) 20, strong (≥ -8 dB) 25.

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 Z3/DD3ZZ 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.

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 UTCBandZ3/DD3ZZ S/NCounterpartCounterpart S/NMsgsCapture
09-11 18:24 40m - / - DD7EE +2 / - 2 Partial capture
09-11 13:50 40m - / - UR5WJA -18 / - 3 Partial capture
09-11 13:21 40m - / - OK2OM +4 / - 3 Partial capture
09-11 12:53 40m - / -2 UR5TU -7 / - 2 Partial capture
09-11 12:11 40m - / -5 IK4TVP -19 / - 3 Partial capture
09-11 09:37 40m -13 / - HF780C - / - 2 Partial capture
09-11 09:02 40m - / - OM5TZ -6 / - 3 Partial capture
09-11 08:12 40m - / -11 IK4TVP -15 / - 5 Partial capture
09-11 07:13 40m - / - IK4TVP -12 / - 2 Partial capture
09-11 06:07 40m - / - I2OGV +9 / - 2 Partial capture
09-11 01:27 40m - / -6 RA6FRI +14 / - 2 Partial capture
09-10 16:26 40m - / -20 R6KA +1 / - 2 Partial capture
09-10 15:57 40m - / -1 IZ4AIF -8 / - 3 Partial capture
09-10 15:52 40m - / - DL1ASL -5 / - 3 Partial capture
09-10 15:50 40m -5 / -17 UX5UW +18 / 0 3 Partial capture
09-10 15:48 40m -3 / - <...> +14 / - 5 ✓ Closing fragment
09-10 15:47 40m -9 / -14 DH0TG +4 / -21 3 Partial capture
09-10 15:41 40m +4 / -9 UA4FKT +16 / +2 3 Partial capture
09-10 15:38 40m -4 / - <...> +8 / - 4 ✓ Closing fragment
09-10 15:36 40m -5 / -13 OZ4KAJ 0 / -9 7 Partial capture
09-10 15:34 40m -3 / - <...> -5 / - 2 ✓ Closing fragment
09-10 15:32 40m - / -11 IK2ZJR 0 / - 4 Partial capture
09-10 15:30 40m -6 / - <...> +4 / - 2 ✓ Closing fragment
09-10 04:42 40m - / - DG8DBW -7 / - 5 Partial capture
09-10 04:42 40m - / +3 ON4IQ -8 / - 7 Partial capture
09-10 03:09 40m - / - R4UR -8 / - 2 Partial capture
09-09 21:09 40m - / -13 PD2RAL -1 / - 2 Partial capture
09-09 20:54 40m - / - DK1GP +2 / - 3 Partial capture
09-09 18:48 40m -21 / - <...> 0 / - 3 ✓ Closing fragment
09-08 22:37 40m - / -15 VO1HH -2 / - 2 Partial capture
09-08 20:38 40m - / -11 ON4ASV +2 / - 2 Partial capture
09-08 17:38 40m - / -2 I1RJP +10 / - 4 Partial capture
09-08 14:10 40m - / - M0RSX -18 / - 2 Partial capture
09-08 14:07 40m - / -3 UB8A -8 / - 6 Partial capture
09-07 21:03 40m - / - F1IQH -5 / - 4 Partial capture
09-07 20:13 40m - / +10 DK7ZT -1 / - 2 Partial capture
09-07 18:17 40m - / -7 F1PBZ 0 / - 3 Partial capture
09-07 17:39 40m - / -14 F1PBZ -2 / - 2 Partial capture
09-07 17:11 40m - / - ES2TT -8 / - 2 Partial capture
09-07 10:38 40m - / - DK7ZT -16 / - 2 Partial capture
09-07 06:05 40m - / -5 RA6OY -4 / - 4 Partial capture
09-07 05:49 40m - / -4 DL1GLO -4 / - 5 Partial capture
09-07 05:21 40m - / -3 F5VHQ +8 / - 2 Partial capture
09-07 04:51 40m - / -11 RA6OY -1 / - 5 Partial capture
09-07 01:07 40m - / -6 RA6OY +6 / - 2 Partial capture
09-07 01:07 40m - / - F5PBG -4 / - 3 Partial capture
09-07 00:43 40m - / -17 R2EA +8 / - 2 Partial capture
09-07 00:39 40m - / -11 DK7ZT -2 / - 3 Partial capture
09-07 00:34 40m - / +3 DL1EBW -4 / - 2 Partial capture
09-06 23:22 40m - / - RA6OY +4 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
130815 -19 1496  Z3/DD3ZZ DL6UJ JO30
132115  +3 1482  Z3/DD3ZZ OK2OM JN99 (x3)
135045 -18 1500  Z3/DD3ZZ UR5WJA KN29 (x3)
153315 -23 1481  Z3/DD3ZZ PD0MNO JO22
154815  -3 1539  Z3/DD3ZZ OK8SAX R-16
182445  +0  474  Z3/DD3ZZ DD7EE JO41 (x2)
193800  +5  474  Z3/DD3ZZ DG1ROL JN58
205600  -9 1539  4Z1GY Z3/DD3ZZ -14
060315 -13  474  Z3/DD3ZZ EB3DBR -13
063115 -23 1805  Z3/DD3ZZ I0MQV R-16

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.

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