DC7LR — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JN58

Receiver-side FT8 activity involving DC7LR, decoded by SO8OO in southeastern Poland. 2,115 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 21 UTC dates in the available aggregate history. Observed between 2026-08-13 and 2026-10-21.

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 2,115 FT8 messages attributed to DC7LR as the transmitting token by decoded message structure across 21 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (42%), followed by 40 m (32%) and 80 m (27%). Most decodes (64%) fell within the six-hour window 19:00-01:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (78%); the estimated median was -2.2 dB.

Overview

2,115
Messages attributed
21
UTC dates decoded
170
Active 15-min windows
-2.2 dB
Estimated median S/N

Bands

First attributed message: 2026-08-13
Last attributed message: 2026-10-21 13:57 UTC

Observed FT8 message patterns

Attributed sample
2,115 messages
Active dates
21 UTC dates
Estimated median S/N
-2.2 dB
Estimated 10th-90th percentile
-12 to +5 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 86, moderate (-15 to -9 dB) 379, strong (≥ -8 dB) 1,650.

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.

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 DC7LR

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
JN58 · 874 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
799 km (approx.)
Last such locator decoded
2026-10-21 11:04 UTC

Other locator fields attributed to this token: JN57 (136).

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 UTCBandDC7LR S/NCounterpartCounterpart S/NMsgsCapture
10-21 13:55 40m +2 / -6 DK1XAM -9 / +5 3 ✓ Full exchange observed
10-21 13:55 40m +2 / -9 SP8BJU +3 / +8 5 ✓ Full exchange observed
10-21 13:54 40m +1 / +5 IK2ZJR +9 / - 5 ✓ Full exchange observed
10-21 13:51 40m +1 / - IZ3NUI - / -6 2 ✓ Closing fragment
10-21 13:47 40m -4 / - 2E0BRU - / -5 2 ✓ Closing fragment
10-21 13:47 40m -8 / - LY5G -21 / -2 3 Partial capture
10-21 13:45 40m -7 / - IZ1JIZ - / +1 3 ✓ Closing fragment
10-21 13:44 40m -1 / - DL0NS - / - 2 Partial capture
10-21 13:42 40m -2 / - OK2CNI - / - 2 Partial capture
10-21 13:41 40m -4 / - F4HMP - / - 3 Partial capture
10-21 13:39 40m -5 / -1 DK1HSI -10 / - 5 ✓ Full exchange observed
10-21 13:30 40m -2 / -3 OK2RM -6 / - 4 ✓ Closing observed
10-21 13:30 40m -3 / - IU5HIU - / +10 2 ✓ Closing fragment
10-21 13:27 40m -4 / -7 OT4R -17 / +10 4 ✓ Full exchange observed
10-21 13:25 40m -2 / - PD7RON -10 / - 6 ✓ Closing observed
10-21 13:25 40m -2 / - G7LHK - / +8 3 ✓ Closing fragment
10-21 13:01 40m - / +8 DD1LD -2 / - 3 ✓ Closing fragment
10-21 12:59 40m -5 / -14 DF9ES -2 / - 4 ✓ Closing observed
10-21 12:57 40m - / -4 OM2IB -2 / - 2 ✓ Closing fragment
10-21 12:50 40m - / -11 DL5LB -5 / - 3 ✓ Closing fragment
10-21 12:42 40m - / -7 I4RHP -5 / - 5 Partial capture
10-21 12:40 40m - / -6 DL6EL +5 / - 3 ✓ Closing fragment
10-21 11:24 40m -8 / +5 HB9CEX -4 / - 4 ✓ Full exchange observed
10-21 11:23 40m -8 / - DK1IO -15 / +1 3 Partial capture
10-21 11:22 40m -5 / - DG4HZ - / +9 2 ✓ Closing fragment
10-21 11:19 40m -4 / - G3EFG - / +2 2 Partial capture
10-21 11:19 40m -6 / +10 I4RHP 0 / +7 6 ✓ Full exchange observed
10-21 11:18 40m -8 / +7 IZ4AIF 0 / - 4 ✓ Closing observed
10-21 11:15 40m -8 / - PE2K - / +7 2 ✓ Closing fragment
10-21 11:12 40m -8 / -12 DL8LRZ -17 / - 4 ✓ Closing observed
10-21 11:11 40m -4 / - GJ0KYZ - / -1 2 ✓ Closing fragment
10-21 11:06 40m -8 / -5 DK5UR -5 / - 4 ✓ Closing observed
10-21 11:05 40m -4 / -17 SP9XG -5 / -4 5 ✓ Full exchange observed
10-21 09:37 40m - / -14 SQ3RAX -12 / - 2 ✓ Closing fragment
10-21 09:35 40m - / -12 PD8MD -9 / - 3 ✓ Closing fragment
10-21 09:29 40m -8 / -21 DG4LXM +1 / - 8 ✓ Closing observed
10-21 09:29 40m - / - OE8PIT -10 / - 4 Partial capture
10-21 09:27 40m -8 / - M9PMB - / -17 3 Partial capture
10-21 09:24 40m -5 / - DL7UVO -11 / - 4 ✓ Closing observed
10-21 09:24 40m -8 / - M1GEO - / -13 3 ✓ Closing fragment
10-21 09:23 40m -5 / -14 DK5CR -22 / - 2 ✓ Closing observed
10-21 09:21 40m -6 / - IZ5WSR - / 0 2 ✓ Closing fragment
10-21 09:19 40m -4 / - DK5UR -4 / +6 5 ✓ Closing observed
10-21 09:18 40m -5 / -17 DF9ES -4 / 0 4 ✓ Full exchange observed
10-21 09:17 40m - / - SP6SOZ -13 / - 5 Partial capture
10-20 12:10 40m - / -3 DL8LRZ -2 / - 3 ✓ Closing fragment
10-20 12:07 40m - / -16 DF9ES -10 / - 2 Partial capture
10-20 12:04 40m -12 / -1 DL7UVO -1 / - 5 ✓ Full exchange observed
10-20 12:03 40m -13 / - M9PMB - / -4 3 ✓ Closing fragment
10-20 12:01 40m - / -2 DK5UR -5 / - 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
135245  -1 2683  CQ POTA DC7LR JN57 (x2)
135415  +6 2779  DC7LR IK2ZJR JN45
135430  -1 2778  IK2ZJR DC7LR +20
135445 +11 2779  DC7LR IK2ZJR R+05
135500  +3 2778  IK2ZJR DC7LR RR73
135515  +7 2700  DC7LR SP8BJU -09
135515 +10 2779  DC7LR IK2ZJR 73
135530  +0 2778  DK1XAM DC7LR +05
135545  -9 2728  DC7LR DK1XAM R-06
135600  +3 2778  DK1XAM DC7LR RR73
135615  +2 2700  DC7LR SP8BJU -09
135630  +5 2778  SP8BJU DC7LR R+08
135645  -1 2700  DC7LR SP8BJU RR73
135700  -2 2778  SP8BJU DC7LR 73
10m
UTC    dB Audio  Message
124245 -12 2560  DC7LR TF4M RR73
80m
UTC    dB Audio  Message
234115  +2 2808  CQ POTA DC7LR JN57 (x8)
234600  +2 1953  DC7LR PA3DTR JO21
234615  +7 2808  PA3DTR DC7LR +05
234630  -1 1953  DC7LR PA3DTR R-10
234645  +4 2808  PA3DTR DC7LR RR73
234700  -3 1953  DC7LR PA3DTR 73
234745  +1 2808  CQ POTA DC7LR JN57 (x2)
160m
UTC    dB Audio  Message
212845  +1 2105  DC7LR SP2EWQ JO93 (x5)
214130  +5 2475  DC7LR DD6WF -16 (x2)
20m
UTC    dB Audio  Message
135515 -11 2880  CQ POTA DC7LR JN58 (x2)
140200 -18  341  DC7LR OH3OJ -13
140315 -13 3018  CT7BDJ DC7LR -05
140630  -8 3018  RW6HPI DC7LR JN58
140800 -14 3018  F5SFT DC7LR JN58
141930  -4 1689  DC7LR DH1NGL -06 (x2)
142830 -14 2928  DL5DQZ DC7LR +10
142845 -10 2236  DC7LR DL5DQZ JO61 (x4)
143300 -11 2928  EB1DJ DC7LR JN58 (x2)

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.

CW

CW history is temporarily unavailable.

Explore CW reception at SO8OO

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