IU2BZV — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Italy Most frequent locator attributed to this token: JN45

Receiver-side FT8 activity involving IU2BZV, decoded by SO8OO in southeastern Poland. 1,142 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 33 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-01.

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 1,142 FT8 messages attributed to IU2BZV as the transmitting token by decoded message structure across 33 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (86%), followed by 20 m (6%) and 10 m (5%). Most decodes (66%) fell within the six-hour window 22:00-04:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (65%); the estimated median was -18 dB.

Overview

1,142
Messages attributed
33
UTC dates decoded
211
Active 15-min windows
-18 dB
Estimated median S/N

Bands

80m · 39 40m · 985 20m · 66 10m · 52
First attributed message: 2026-06-06
Last attributed message: 2026-09-01 08:01 UTC

Observed FT8 message patterns

Attributed sample
1,142 messages
Active dates
33 UTC dates
Estimated median S/N
-18 dB
Estimated 10th-90th percentile
-24 to -11 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 740, moderate (-15 to -9 dB) 365, strong (≥ -8 dB) 37.

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 IU2BZV 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 IU2BZV

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
JN45 · 997 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,075 km (approx.)
Last such locator decoded
2026-09-01 08:01 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 UTCBandIU2BZV S/NCounterpartCounterpart S/NMsgsCapture
09-01 07:19 40m - / -6 HA1ZW -3 / - 3 ✓ Closing fragment
08-27 02:26 40m -8 / - EC5M -7 / -5 4 Partial capture
08-26 22:54 40m -14 / -17 IS0KZK -12 / - 3 ✓ Closing observed
08-26 22:34 40m - / - ON4MAP -22 / - 2 Partial capture
08-26 22:27 40m -13 / - EA3JEA - / -18 4 ✓ Closing fragment
08-26 21:52 40m -14 / -10 IK5ZPV -5 / +5 2 Partial capture
08-26 21:52 40m - / - DL3RSK -18 / - 2 Partial capture
08-26 21:43 40m - / - CT3MD -6 / - 4 ✓ Closing fragment
08-26 19:54 40m - / -13 IU1TRT -13 / - 2 ✓ Closing fragment
08-26 19:36 40m - / -15 DL4RE -7 / - 3 ✓ Closing fragment
08-26 18:28 40m - / - OH7WL -12 / - 3 Partial capture
08-26 18:01 40m - / -15 DF7EE -3 / - 12 Partial capture
08-26 17:06 40m -18 / -8 DL6MFY -4 / 0 9 ✓ Full exchange observed
08-26 16:33 40m - / -5 SP2GPL -3 / - 3 ✓ Closing fragment
08-26 15:35 40m - / -14 DF8MH -15 / - 8 ✓ Closing fragment
08-26 13:43 40m - / +8 IU3WOH -20 / - 2 Partial capture
08-26 08:41 40m - / - PA1PXL -22 / - 2 Partial capture
08-26 08:01 40m - / -4 DM3PT -20 / - 3 ✓ Closing fragment
08-26 07:50 40m - / -12 DL6ZAJ -18 / - 2 Partial capture
08-26 06:57 40m - / -16 DF9HI -8 / - 2 ✓ Closing fragment
08-26 05:54 40m - / -17 SQ6PZL -6 / - 4 ✓ Closing fragment
08-26 05:50 40m - / -26 SQ6PZL -4 / - 4 Partial capture
08-26 05:32 40m - / -5 G1SCT -11 / - 6 Partial capture
08-26 05:16 40m - / - DA1TE -13 / - 5 ✓ Closing fragment
08-26 05:09 40m - / - OK2UPG -4 / - 2 ✓ Closing fragment
08-25 23:26 40m - / -8 PG7R -7 / - 4 ✓ Closing fragment
08-25 22:41 40m - / -16 DH5BM -18 / - 7 ✓ Closing fragment
08-25 22:38 40m - / -18 PD2RAL -8 / - 2 ✓ Closing fragment
08-25 21:26 40m - / -18 UW5IM +14 / - 2 Partial capture
08-25 19:48 40m - / -1 OK7TB +9 / - 3 ✓ Closing fragment
08-25 19:44 40m - / -13 SP6EFY +4 / - 3 ✓ Closing fragment
08-25 19:21 40m - / -14 M8MQF 0 / - 3 ✓ Closing fragment
08-25 19:15 40m - / -4 DF7NO -3 / - 8 Partial capture
08-25 19:10 40m - / -15 G6PWS -8 / - 3 ✓ Closing fragment
08-25 18:59 40m - / -15 DL1ARS/P -3 / - 2 Partial capture
08-23 05:27 40m - / -8 OK1MAT -13 / - 2 Partial capture
08-23 05:27 40m - / -1 DJ9GP -11 / - 3 Partial capture
08-23 01:56 40m - / -20 SP2CRY -3 / - 2 ✓ Closing fragment
08-22 20:21 40m - / -18 UR5TOC +3 / - 2 Partial capture
08-22 18:28 40m - / -20 RD3FY -4 / - 3 ✓ Closing fragment
08-22 18:22 40m - / -19 UA3GDJ +3 / - 3 ✓ Closing fragment
08-22 17:42 40m - / +8 DL9KMH -12 / - 3 ✓ Closing fragment
08-22 13:19 40m - / -9 DF1MAT -13 / - 3 ✓ Closing fragment
08-22 12:29 40m - / -26 DL2HUC -10 / - 4 Partial capture
08-22 11:30 40m - / - YU2MMT -21 / - 3 Partial capture
08-22 09:15 40m - / -12 IZ4AIF -8 / - 6 ✓ Closing fragment
08-22 08:27 40m - / -8 DL1PSK -18 / - 3 ✓ Closing fragment
08-22 01:58 40m -10 / - ON5LC -22 / -19 3 ✓ Closing observed
08-22 00:04 40m - / -12 DL3PWR -10 / - 2 ✓ Closing fragment
08-21 23:26 40m -13 / - G6NBF -11 / +5 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
035230 -16 1485  CQ IU2BZV JN45 (x7)
070015 -17  978  IU2BZV I6XVL R+25
071915  -1 1343  IU2BZV HA1ZW JN86 (x4)
080030 -20 1485  CQ IU2BZV JN45 (x2)
080615  -3 1343  IU2BZV HA1ZW R-12
20m 
UTC    dB Audio  Message
094615  -1 2614  IU2BZV PD2WL -12 (x3)
095645 -22 1492  IU2BZV 2W0YOX IO81
131200 -21 1493  CQ IU2BZV JN45
133645  -8 1020  IU2BZV LZ1ZF 73
140945 -15 1493  IU2BZV LA8DRA R-15 (x2)
161245 -13 2256  IU2BZV IT9GSF JM67 (x2)
162115 -18 1494  IU2BZV IU7WCE JN80 (x4)
040515 -13 1831  IU2BZV HK3YL R-22
80m 
UTC    dB Audio  Message
034100 -22 1376  CQ IU2BZV JN45 (x4)
034545 -20  687  IU2BZV DO2TM -22
034600 -24 1375  CQ IU2BZV JN45                        a1 (x2)
035515  -4 2462  IU2BZV DO9JN JO41
035515 -19 1479  IU2BZV DO3JP R-13
035545 -11 2462  IU2BZV DO9JN JO41
035545 -23 1478  IU2BZV DO3JP R-13
035615 -11 2462  IU2BZV DO9JN JO41 (x2)
035700 -21 1375  DO9JN IU2BZV RR73
035715 -10 2461  IU2BZV DO9JN 73

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