UB4HVA — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving UB4HVA, decoded by SO8OO in southeastern Poland. 1,155 related FT8 messages, 110 CQ messages, observed on 40m, 20m, across 32 UTC dates. Heard between 2026-05-29 and 2026-08-23.
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
Frequent QSO partners observed at SO8OO
Stations UB4HVA worked most often, as logged from our receiver:
Activity Heatmap
Locator transmitted by UB4HVA
Approximate centre of LO53, decoded 2026-08-23 17:15 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 UTC | Band | UB4HVA S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-23 17:16 | 40m | -16 / +8 | RO3ZR | -1 / +2 | 5 | ✓ Full exchange observed |
| 08-23 17:15 | 40m | -12 / -1 | R6OAQ | 0 / -3 | 5 | ✓ Full exchange observed |
| 08-23 17:13 | 40m | -14 / - | UA0ACZ | - / -4 | 3 | ✓ Closing fragment |
| 08-23 17:10 | 40m | -13 / -9 | R3YK | +8 / -1 | 5 | ✓ Full exchange observed |
| 08-23 17:08 | 40m | -12 / -3 | R6FFB | +11 / -6 | 5 | ✓ Full exchange observed |
| 08-23 17:07 | 40m | -11 / - | RA9DZ | - / 0 | 2 | ✓ Closing fragment |
| 08-23 17:04 | 40m | - / +8 | RJ6B | +7 / - | 4 | ✓ Closing fragment |
| 08-23 17:02 | 40m | - / +4 | R3KLE | +8 / - | 2 | ✓ Closing fragment |
| 08-23 16:23 | 40m | - / -3 | RA3TKS | -4 / - | 2 | Partial capture |
| 08-23 16:22 | 40m | - / -6 | YT7DX | -14 / - | 3 | Partial capture |
| 08-23 16:21 | 40m | -20 / -6 | RN7T | -6 / -8 | 4 | ✓ Full exchange observed |
| 08-23 16:19 | 40m | -16 / +3 | R3RM | -4 / - | 3 | ✓ Closing observed |
| 08-23 16:17 | 40m | - / -13 | UA6HJT | +4 / - | 3 | ✓ Closing fragment |
| 08-23 16:01 | 40m | -24 / -15 | UB6ZDJ | -11 / - | 3 | ✓ Closing observed |
| 08-23 15:58 | 40m | - / - | R4CR | -19 / - | 4 | ✓ Closing fragment |
| 08-23 15:57 | 40m | -22 / - | R5GG | -21 / - | 2 | ✓ Closing observed |
| 08-23 15:57 | 40m | -21 / +7 | R4HNW | -7 / - | 4 | ✓ Closing observed |
| 08-23 15:55 | 40m | -24 / -15 | TA5DOB | -24 / -12 | 2 | Partial capture |
| 08-23 15:49 | 40m | - / 0 | RA3PDL | -13 / - | 2 | ✓ Closing fragment |
| 08-23 15:47 | 40m | - / - | UA3ARC | -20 / - | 2 | ✓ Closing fragment |
| 08-23 14:52 | 20m | -12 / - | TK4QP | - / - | 2 | Partial capture |
| 08-23 14:39 | 40m | - / - | RD3MJ | -11 / - | 2 | ✓ Closing fragment |
| 08-23 14:16 | 20m | - / -5 | DM2DXA | -12 / - | 2 | ✓ Closing fragment |
| 08-23 14:01 | 20m | -16 / - | RY7G | - / - | 2 | ✓ Closing fragment |
| 08-23 13:49 | 20m | -11 / - | R7KE | - / -3 | 3 | ✓ Closing fragment |
| 08-23 12:18 | 20m | -18 / - | UA0LHS | - / -11 | 2 | ✓ Closing fragment |
| 08-23 11:54 | 20m | - / -18 | RZ6AOJ | -5 / - | 2 | ✓ Closing fragment |
| 08-23 05:56 | 20m | -2 / -21 | UB6HVA | -8 / - | 4 | Partial capture |
| 08-23 05:13 | 20m | -1 / -9 | RA6ANN | -22 / -17 | 4 | ✓ Full exchange observed |
| 08-23 05:13 | 20m | -1 / - | HF7X | - / -8 | 2 | ✓ Closing fragment |
| 08-23 05:11 | 20m | 0 / - | XQ1KK | - / -12 | 4 | ✓ Closing fragment |
| 08-23 04:59 | 20m | -4 / - | RG6S | - / -12 | 4 | Partial capture |
| 08-23 04:58 | 20m | +2 / - | SQ9CXH | - / -4 | 2 | ✓ Closing fragment |
| 08-23 04:50 | 20m | -1 / +8 | R9JE | +2 / +2 | 3 | ✓ Full exchange observed |
| 08-23 04:44 | 20m | +2 / -3 | UA9MA | -10 / -6 | 4 | ✓ Full exchange observed |
| 08-22 14:53 | 20m | -9 / - | OZ1ESA | - / - | 3 | ✓ Closing fragment |
| 08-22 14:06 | 20m | -4 / -17 | DH3LAT | -10 / -10 | 9 | ✓ Full exchange observed |
| 08-22 13:39 | 20m | -5 / - | 9A9TT | - / -15 | 4 | ✓ Closing fragment |
| 08-22 12:52 | 20m | -12 / - | R1ZW | -12 / 0 | 5 | ✓ Full exchange observed |
| 08-22 12:48 | 20m | -6 / - | <...> | - / -6 | 2 | Partial capture |
| 08-22 12:47 | 20m | - / -16 | II7MGBT | +3 / - | 2 | Partial capture |
| 08-22 12:47 | 20m | - / -3 | IZ8IQL | -8 / - | 2 | Partial capture |
| 08-22 12:42 | 20m | -8 / - | R9SY | - / +1 | 2 | ✓ Closing fragment |
| 08-22 12:38 | 20m | -2 / - | BG2ATH | - / - | 2 | Partial capture |
| 08-22 12:37 | 20m | -6 / - | RA3WY | -9 / - | 2 | ✓ Closing observed |
| 08-22 12:35 | 20m | -10 / - | RA9UAD | -12 / -6 | 4 | ✓ Closing observed |
| 08-22 12:19 | 20m | -17 / - | R4UAS | - / -14 | 2 | ✓ Closing fragment |
| 08-22 12:12 | 20m | -7 / - | RG6S | - / - | 6 | Partial capture |
| 08-22 09:20 | 20m | -8 / - | OH/LA2VLA | - / - | 2 | Partial capture |
| 08-22 09:11 | 20m | -15 / - | 9A2RD | - / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 171200 +9 325 UB4HVA R3YK RR73 171300 -16 1214 UA0ACZ UB4HVA LO53 (x3) 171500 -14 1214 R6OAQ UB4HVA LO53 171515 +1 1214 UB4HVA R6OAQ -01 171530 -11 1214 R6OAQ UB4HVA R-03 171545 -2 1214 UB4HVA R6OAQ RR73 171600 -12 1214 R6OAQ UB4HVA 73 171615 +0 2726 UB4HVA RO3ZR KO80 171630 -17 1214 RO3ZR UB4HVA +02 171645 -1 2726 UB4HVA RO3ZR R+08 171700 -15 1214 RO3ZR UB4HVA RR73 171715 -2 2726 UB4HVA RO3ZR 73 172200 +13 548 UB4HVA R3OR -09
UTC dB Audio Message 122430 -23 2314 UF6VX UB4HVA 73 123200 -14 1917 UB4HVA R1DM -09 124530 -13 2314 UA9OIY UB4HVA LO53 134900 -11 2312 R7KE UB4HVA LO53 (x3) 135245 -9 2313 RN7B UB4HVA LO53 140100 -11 1983 RY7G UB4HVA LO53 (x2) 141645 -13 1941 UB4HVA DM2DXA -05 (x2) 145200 -12 2104 TK4QP UB4HVA LO53 (x2) 145545 -15 2104 3B8GL UB4HVA LO53 145630 -9 2104 R1BIL UB4HVA LO53
Decoder S/N history by band
Daily averages across messages associated with this profile as decoded at SO8OO.