N9TPB
FCC License Search
🕒 FCC license data updated today 7:15 am CDT (FCC files through Oct 4, 2026) · next update tomorrow 6:00 am CDT
Ask:
HAMs within 5 miles of N9TPB · Extra class operators in Madison, WI · or try N9TPB · K9* wildcards · Smith, John · 0004797601 (FRN) · 53703 · Madison, WIKR4KTV HAM
⏳ Not available yet — opens for vanity requests Jun 16, 2028, two years after the license was canceled (Jun 15, 2026).
2x3 call: any licensee can request it.
No pending applications list it.
📬 QSL: no LoTW uploads on record · not eQSL AG · QRZ · HamQTH
Not currently held · 1 holder on record
Previous holder: Chunhai Liu
Held KR4KTV Mar 19, 2026 → Jun 15, 2026 · first licensed Mar 19, 2026 as KR4KTV · 2 licenses · FRN 0038016473
-
- Licensee
- Chunhai Liu
- Address
- 19895 Dean Dr
Boca Raton, FL 33434-5406
- FRN
- 0038016473
- Previous call
- KR4KTV (General)
- Last granted
- Mar 19, 2026
- Effective
- Jun 15, 2026
- Last action
- Jun 15, 2026
FCC actions (2)
- Jun 15, 2026 — Systematic call sign granted SYSGRT
- Jun 15, 2026 — License issued LIISS
-
- Licensee
- Chunhai Liu
- Address
- 19895 Dean Dr
Boca Raton, FL 33434-5406
- FRN
- 0038016473
- Last granted
- Mar 19, 2026
- Effective
- Jun 15, 2026
- Last action
- Jun 15, 2026
FCC actions (3)
- Jun 15, 2026 — License canceled LICAN
- Mar 19, 2026 — License issued LIISS
- Mar 19, 2026 — Systematic call sign granted SYSGRT
Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.
- Seen Sep 27, 2026 → Oct 4, 2026 · 4 snapshots · as KR4KTV
Chunhai Liu
19895 Dean Dr, Boca Raton, FL 33434-5406
📡 On the air: APRS, digital & WSPR spots
No APRS positions, PSK Reporter reports or WSPR spots for KR4KTV in the last 24 hours. They show up here within seconds of KR4KTV beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.