🕒 FCC license data updated yesterday 9:42 am CDT (FCC files through Sep 30, 2026) · next update today 9:15 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, WI
W7SDF HAM
✅ Available for a vanity request — free since Dec 12, 2019.
1x3 call: Technician, General, Advanced and Amateur Extra licensees can request it.
No pending applications list it.
Not currently held
· 1 holder on record
· available since Dec 12, 2019
Previous holder: Oregon State Defense Force Radio Group
Held W7SDF Dec 11, 2007 → Dec 11, 2017
· first licensed Oct 10, 2007 as KE7PDW
· 2 licenses · FRN 0017005869
W7SDFExpiredClub / other · vanityDec 11, 2007 → Dec 11, 2017 (expired)
Licensee
Oregon State Defense Force Radio Group
Address
Attn: Thomas D Nelson Camp Withycombe Clackamas, OR 97015
Oct 10, 2007 — 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 May 27, 2010 → Sep 27, 2026 · 92 snapshots · as KE7PDW
Oregon State Defense Force Radio Group
Attn: Thomas D Nelson Camp Withycombe, Clackamas, OR 97015
No APRS positions, PSK Reporter reports or WSPR spots for W7SDF in the last 24 hours. They show up here within seconds of W7SDF beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.