TF4M — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Iceland Locator transmitted in a decoded message: HP85

Receiver-side FT8 activity involving TF4M, decoded by SO8OO in southeastern Poland. 4,898 related FT8 messages, 1,163 CQ messages, observed on 160m, 80m, 60m, 40m, 20m, 10m, across 31 UTC dates. Heard between 2026-05-26 and 2026-08-24.

These are automated observations at the SO8OO receiver, not the station's official logbook. Times are UTC. Decoder S/N describes messages received at SO8OO; inferred entity and location data may be inaccurate for portable, remote or special-event operation.

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Overview

4,898
Related messages
1,163
CQ messages
31
UTC dates heard
-7 dB
Mean decoder S/N

Bands

80m 20m 40m 60m 10m 160m
First seen: 2026-05-26
Last seen: 2026-08-24 04:34 UTC

Frequent QSO partners observed at SO8OO

Stations TF4M worked most often, as logged from our receiver:

Activity Heatmap

Locator transmitted by TF4M

Approximate centre of HP85, decoded 2026-08-24 04:51 UTC. A transmitted locator is not proof of the operator's permanent location.

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 UTCBandTF4M S/NCounterpartCounterpart S/NMsgsCapture
08-24 06:33 40m - / -16 SP9JBP +2 / - 3 ✓ Closing fragment
08-24 06:33 40m - / -13 DL4MD -24 / - 2 ✓ Closing fragment
08-24 06:11 40m - / -9 ON4AOI -2 / - 2 ✓ Closing fragment
08-24 04:37 40m -15 / - N6VIN - / - 6 Partial capture
08-24 04:13 40m -14 / - VA7ESH - / - 16 Partial capture
08-24 04:07 40m -12 / - AA6AA - / - 6 Partial capture
08-24 04:04 40m -10 / - AA6AA - / - 2 Partial capture
08-24 04:01 40m -10 / - AA6AA - / - 2 Partial capture
08-24 03:51 40m -12 / - AA6AA - / - 13 Partial capture
08-24 03:28 40m -4 / - KJ8H - / -11 2 ✓ Closing fragment
08-24 03:27 40m -4 / -17 UT1FT -11 / +9 5 ✓ Full exchange observed
08-24 02:29 40m -4 / -9 R2RCQ +2 / -5 7 ✓ Full exchange observed
08-24 02:28 40m -4 / - YO8XFU - / -6 2 ✓ Closing fragment
08-24 02:22 40m -4 / - CO7HNS - / -9 11 ✓ Closing fragment
08-24 02:18 40m -3 / - EA5HM -14 / -9 4 ✓ Closing observed
08-24 02:17 40m -4 / - RZ1AS - / -3 2 ✓ Closing fragment
08-24 02:16 40m -6 / - RA2FCF - / +3 2 ✓ Closing fragment
08-24 02:14 40m -6 / - LZ2CC - / 0 2 ✓ Closing fragment
08-24 02:13 40m -6 / -6 IK5AEQ -2 / -6 6 ✓ Full exchange observed
08-24 02:11 40m -4 / - CO7HNS - / - 3 Partial capture
08-24 02:07 40m -8 / -10 EK1KE -20 / - 3 ✓ Closing observed
08-24 02:00 40m -8 / - KP2B -18 / 0 6 ✓ Closing observed
08-24 01:55 40m -10 / - CO7HNS - / - 7 Partial capture
08-24 01:51 40m -13 / -15 G1VHD -18 / -3 5 Partial capture
08-24 01:50 40m -13 / - CO7HNS - / - 5 Partial capture
08-24 01:48 40m -15 / - EA5HM - / -4 5 Partial capture
08-24 01:40 40m -16 / - EA5HM -16 / -3 10 Partial capture
08-24 01:38 40m -15 / -11 NB2P -1 / +10 8 ✓ Full exchange observed
08-24 01:34 40m -13 / - WD4SRC - / -17 9 Partial capture
08-24 01:32 40m -10 / +1 OG2M -15 / +8 5 ✓ Full exchange observed
08-24 01:31 40m -15 / - CO7HNS - / - 3 Partial capture
08-24 01:20 40m -14 / - WP4TNV - / - 2 ✓ Closing fragment
08-24 01:14 40m -10 / - WP4TNV - / -2 3 Partial capture
08-24 01:07 40m - / - N3AQ -11 / - 5 Partial capture
08-24 01:04 40m -13 / - KB1GTG - / - 3 ✓ Closing fragment
08-24 00:59 40m -10 / - KB1GTG - / -1 4 Partial capture
08-24 00:57 40m -8 / - 9Z4S - / -11 2 Partial capture
08-24 00:34 40m - / -11 EA1AOC -10 / - 2 Partial capture
08-24 00:31 40m -15 / -16 KA1BQP -2 / +3 7 ✓ Full exchange observed
08-24 00:04 40m -6 / - TI2ALF - / +6 2 ✓ Closing fragment
08-23 23:59 40m -6 / - VE1PZ - / +1 2 ✓ Closing fragment
08-23 23:05 40m -4 / - PY4EK - / -11 2 ✓ Closing fragment
08-23 23:01 40m -6 / - C6AVD - / - 8 Partial capture
08-23 21:53 40m -10 / - 6Q8VTZ - / - 15 Partial capture
08-23 20:58 40m - / -14 R3OR +8 / - 4 ✓ Closing fragment
08-23 20:55 40m -13 / - EI2OARC - / - 6 Partial capture
08-23 20:50 40m -13 / -8 R3YAU +8 / -2 4 ✓ Full exchange observed
08-23 20:49 40m -12 / - RW3SK -3 / -5 4 ✓ Closing observed
08-23 20:38 40m -15 / - EI2OARC - / +2 5 Partial capture
08-23 20:19 40m -17 / - IS0LYN -9 / -6 2 ✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
043845 -13 2214  N6VIN TF4M HP85 (x5)
045130 -17 2214  N7XS TF4M HP85
045615 -10 2215  TF4M IU1TLG JN35
052745 -16 2215  TF4M EA6AJW RR73
061100  -2 1769  TF4M ON4AOI -09 (x2)
063300 -24 1444  TF4M DL4MD R-13 (x2)
063330  +0 1666  TF4M SP9JBP KO00 (x3)
10m 
UTC    dB Audio  Message
095445  -5 2603  TF4M PE1LYU RR73
100045 -18 1422  TF4M IK2VFR 73
100415  +0  992  TF4M S58N JN76 (x2)
201215 -21 1526  TF4M IK1RQX R-16 (x2)
103545 -10 2425  TF4M DH7ZP JO40 (x2)
105245 -12 2424  TF4M PD4WAC R-18
122345 -24 1628  TF4M IW8PQ JM78
092830  -5 2832  TF4M 9J2FI RR73
094330 -19 1284  TF4M ZS6KVZ RR73
195415 -18 2305  TF4M IZ7GIT -17
171245 -13 2287  TF4M YO7ARZ KN14 (x2)
80m 
UTC    dB Audio  Message
033515 +16 2345  TF4M SP7XIF RRR
033530 -22 2402  SP7XIF TF4M 73
033545 +16 2345  TF4M SP7XIF 73
033545 +12 2651  TF4M OE5DML JN78
034400 -24 2403  N5SIX TF4M HP85
035015 -12 1009  TF4M KO4PRE R-17 (x2)
035215  +4 1922  TF4M DL2RPN JO62 (x3)
041530 -24 1626  TF4M KB3CCJ EL88
041700  -7 1180  TF4M OZ1HYM JO44 (x3)
043215  +4  562  TF4M ON8DM R-14
20m 
UTC    dB Audio  Message
152645 -23 2091  TF4M IZ3ZQT JN55 (x2)
152815 -13 2480  TF4M F4NMY JN08 (x2)
154415  -9 2456  TF4M F4MSA -07
155600 -14 1209  TF4M EB1DJ IN52 (x2)
160445 -14 2386  TF4M LZ2TWY KN33 (x5)
160815 -17 2479  7Z1FF TF4M HP85 (x3)
60m 
UTC    dB Audio  Message
231645  -6 1063  TF4M EA1IOK IN62 (x3)
160m 
UTC    dB Audio  Message
173245  -7  296  TF4M RN7T LN05 (x2)

Decoder S/N history by band

Daily averages across messages associated with this profile as decoded at SO8OO.