WP4U — FT8 station from Puerto Rico
Amateur radio station WP4U operating from Puerto Rico (grid square KN77). 1,133 FT8 spots received at SO8OO WebSDR, 37 CQ calls, active on 160m, 80m, 60m, 40m, 20m, 10m, over 36 days, best SNR +23 dB. Heard between 2026-05-03 and 2026-08-01.
FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee
Overview
1,133
Total spots
37
CQ calls
36
Days active
-6 dB
Avg SNR
Bands
80m
20m
40m
60m
10m
160m
First seen: 2026-05-03
Last seen: 2026-08-01 03:15 UTC
Last seen: 2026-08-01 03:15 UTC
Frequent QSO partners observed at SO8OO
Stations WP4U worked most often, as logged from our receiver:
Activity Heatmap
Location
QSO Logbook (as observed from SO8OO)
Format: our rx / partner reports
| Time | Band | WP4U | Partner | Partner SNR | Msgs | |
|---|---|---|---|---|---|---|
| 08-01 05:12 | 20m | - / -15 | R8QA | +1 / - | 3 | ✓ Confirmed |
| 08-01 05:12 | 20m | - / +7 | EW4DX | 0 / - | 2 | ✓ Confirmed |
| 08-01 05:10 | 20m | -12 / - | UR9QQ | -4 / -12 | 3 | ✓ Verified |
| 08-01 05:08 | 20m | -20 / -17 | UX1VT | -7 / - | 3 | Partial |
| 08-01 05:07 | 20m | - / -15 | UR4UUY | -3 / - | 3 | ✓ Confirmed |
| 08-01 05:06 | 20m | - / - | UR4QWW | -4 / - | 2 | Partial |
| 07-27 00:19 | 80m | +2 / - | RA3VX | - / -23 | 2 | Partial |
| 07-27 00:15 | 80m | +13 / - | SQ2RAD | - / -14 | 6 | ✓ Confirmed |
| 07-27 00:15 | 80m | -1 / - | OH2MA | - / -18 | 7 | ✓ Confirmed |
| 07-26 23:41 | 40m | - / - | UN7PPV | -18 / - | 6 | Partial |
| 07-24 02:08 | 40m | - / - | SV2KD | -14 / - | 2 | ✓ Confirmed |
| 07-24 02:06 | 40m | - / -9 | PW8BR | -13 / - | 3 | ✓ Confirmed |
| 07-24 02:03 | 40m | - / -10 | LU4HA | -14 / - | 2 | ✓ Confirmed |
| 07-24 02:02 | 40m | - / -6 | IZ8EYN | -12 / - | 2 | ✓ Confirmed |
| 07-24 01:59 | 40m | - / -2 | UT7UB | -12 / - | 3 | ✓ Confirmed |
| 07-24 01:11 | 40m | - / +7 | OZ0JX | -14 / - | 3 | ✓ Confirmed |
| 07-24 01:07 | 40m | - / -8 | VY2FA | -12 / - | 3 | ✓ Confirmed |
| 07-24 01:06 | 40m | - / +8 | <...> | -10 / - | 2 | Partial |
| 07-24 01:03 | 40m | - / +2 | CG2C | -11 / - | 3 | ✓ Confirmed |
| 07-22 04:46 | 20m | -13 / - | R2DN | - / - | 4 | Partial |
| 07-22 04:43 | 20m | -3 / - | IZ1LBN | - / -3 | 2 | Partial |
| 07-22 04:38 | 20m | - / -9 | 9H4CM | -6 / - | 4 | Partial |
| 07-22 04:33 | 20m | - / -8 | 9H4CM | -10 / - | 4 | Partial |
| 07-22 04:32 | 20m | - / - | UR4QWW | -14 / - | 2 | Partial |
| 07-22 03:42 | 40m | - / -3 | YO4LUP | -16 / - | 2 | ✓ Confirmed |
| 07-22 03:41 | 40m | -18 / -9 | S55A | -16 / - | 3 | ✓ Verified |
| 07-22 03:31 | 40m | - / -7 | W5R | -17 / - | 3 | ✓ Confirmed |
| 07-22 03:26 | 40m | - / -1 | PV8AJ | -16 / - | 4 | ✓ Confirmed |
| 07-22 03:22 | 40m | -24 / -12 | UA3WG | -15 / -12 | 5 | Partial |
| 07-22 03:22 | 40m | -22 / -10 | UA3POG | -15 / - | 5 | ✓ Verified |
| 07-22 03:21 | 40m | - / -15 | UW5ESX | -16 / - | 2 | ✓ Confirmed |
| 07-22 03:18 | 40m | - / -11 | YO8RAW | -16 / - | 2 | Partial |
| 07-22 03:17 | 40m | -16 / - | RU7KQ | - / -9 | 2 | Partial |
| 07-22 03:15 | 40m | - / -11 | <...> | -10 / - | 4 | Partial |
| 07-22 03:08 | 40m | - / +3 | UR3CFC | -2 / - | 2 | ✓ Confirmed |
| 07-22 03:07 | 40m | - / -7 | ES2DR | -2 / - | 2 | ✓ Confirmed |
| 07-22 03:05 | 40m | - / -9 | R7LX | -3 / - | 2 | ✓ Confirmed |
| 07-22 03:02 | 40m | - / -20 | 7Q5MLV | -8 / - | 2 | Partial |
| 07-18 03:57 | 40m | - / - | VE6CV | -20 / - | 3 | Partial |
| 07-18 03:52 | 40m | - / -19 | VB7F | -18 / - | 2 | ✓ Confirmed |
| 07-16 03:05 | 80m | +1 / - | DK1MCS | - / - | 3 | Partial |
| 07-16 03:04 | 80m | +8 / -13 | DL8LE | -24 / -11 | 3 | ✓ Complete |
| 07-16 03:03 | 80m | -12 / - | IT9BYL | - / - | 4 | Partial |
| 07-16 03:02 | 80m | -23 / - | HB9MZI | - / - | 5 | Partial |
| 07-16 00:29 | 80m | - / - | RC6OD | -24 / - | 2 | Partial |
| 07-16 00:27 | 80m | +10 / - | OK2BUZ | -24 / -13 | 4 | ✓ Verified |
| 07-16 00:26 | 80m | - / - | RC6OD | -23 / - | 2 | Partial |
| 07-14 00:44 | 40m | -2 / - | IK4LZH | - / - | 3 | Partial |
| 07-14 00:43 | 40m | -9 / - | RN6MA | - / -4 | 4 | Partial |
| 07-14 00:42 | 40m | -9 / - | F1IQH | - / - | 3 | Partial |
Station Log
20m
UTC dB Freq Message 050730 -2 2363 UR4UUY WP4U FK68 (x3) 050845 -19 2363 WP4U UX1VT KN68 (x2) 050930 -7 1863 UX1VT WP4U -17 051045 -8 1516 WP4U UR9QQ R-12 051100 -4 2363 UR9QQ WP4U RR73 051115 -15 1515 WP4U UR9QQ 73 051200 +0 2363 EW4DX WP4U +07 051230 +0 2363 R8QA WP4U R-15 (x3) 051400 +0 2363 EW4DX WP4U RR73 051545 -12 385 WP4U UR4QWW KN77
80m
UTC dB Freq Message 001545 +12 2380 WP4U SQ2RAD JO94 001545 -3 1890 WP4U OH2MA KP31 (x3) 001715 +12 2380 WP4U SQ2RAD JO94 001715 +0 1891 WP4U OH2MA R-18 001745 +14 2380 WP4U SQ2RAD R-14 001745 -8 1891 WP4U OH2MA R-18 001815 +16 2380 WP4U SQ2RAD R-14 001815 -3 1890 WP4U OH2MA 73 001845 +13 2380 WP4U SQ2RAD R-14 001915 -17 998 WP4U ON6JN JO11 001915 +13 2380 WP4U SQ2RAD 73 001915 +0 1226 WP4U RA3VX LO06 (x2)
40m
UTC dB Freq Message 020630 -14 1299 PW8BR WP4U FK68 (x3) 020830 -13 1298 SV2KD WP4U R+00 (x2) 234130 -22 1737 UN7PPV WP4U FK68 (x7) 235100 -15 1737 WP4U DK3AE JO51 235215 -18 1738 OH3JP WP4U RR73 235345 -18 1737 F4FPR WP4U RR73
10m
UTC dB Freq Message 153700 -17 2269 WP4U AO8RKB +08 130430 -4 2850 WP4U <...> -02 130830 -22 1060 WP4U EA1CQ IN83 175930 +2 826 WP4U SV1AZL KM17 (x4) 180930 +0 2084 WP4U SV1PLR -14 123345 -11 536 WP4U ZS6BUJ RR73 151830 -13 1435 WP4U 7Q9BK RR73 202600 -14 725 WP4U SX0W KN10 (x2)
160m
UTC dB Freq Message 030530 +11 848 WP4U IW0FFK -25 (x2)
60m
UTC dB Freq Message 034730 -3 1823 WP4U F6EQZ JN19 (x3) 034830 -1 907 WP4U 9A60CBM RR73 034900 -10 1823 WP4U F6EQZ JN19 034900 -3 907 WP4U 9A60CBM RR73 034915 -14 1188 F6EQZ WP4U +02 034930 -8 1823 WP4U F6EQZ R-01 034945 -13 1188 F6EQZ WP4U RR73 035030 +0 907 WP4U <...> +00 035045 -13 1188 <...> WP4U FK68 035100 -1 907 WP4U <...> +02 035115 -13 1188 <...> WP4U FK68 035130 -4 907 WP4U <...> +04 (x2)