You can get 5 free channels in ZIP 57439 (Groton, SD)
Measured from the U.S. Census center of ZIP 57439 · 2 channels have a Strong indoor-ready signal.
Attic or High-Gain Window Antenna
You have 3 Strong/Moderate channels. An attic or 2nd-floor window antenna will lock in way more channels than a basic flat panel.
🧭 Broadcast Tower Compass — Which Way to Point Your Antenna
Each dot is a local TV tower relative to your center point (● Green = Strong, ● Blue = Moderate, ● Amber = Weak).
Primary Aim Direction: E (98°)
Place your indoor antenna near a window or exterior wall facing E (98°), or aim your attic/rooftop antenna toward that compass bearing for the strongest signal lock.
After placing or moving your antenna, always run a fresh TV channel rescan.
Channel Lineup & Tower Directions for ZIP 57439
Sorted with Strong signals and major broadcast networks first. Channel is the virtual channel number your TV displays; Band / RF Ch. is the actual radio frequency that determines whether you need a VHF-capable antenna. How we calculate signals.
| Channel | Network | Station | Distance | Point Antenna | Band / RF Ch. | Estimated Signal |
|---|---|---|---|---|---|---|
| 3 | CBS | KDLO-TV Florence, SD · Full Power | 35.6 mi | SE (136°) | Low VHF RF 3 | ● Strong — Indoor OK |
| 16 | PBS | KDSD-TV Aberdeen, SD · Full Power | 23.5 mi | ENE (61°) | UHF RF 17 | ● Strong — Indoor OK |
| – | Local / LPTV | K14TP-D Aberdeen, SD · Low Power | 21.2 mi | WNW (287°) | UHF RF 14 | ● Moderate — Window / High Indoor |
| – | Local / LPTV | K33MI-D Aberdeen, SD · Translator | 22.9 mi | WNW (295°) | UHF RF 33 | ▲ Weak — Outdoor / Attic |
| – | Local / LPTV | K36NW-D Aberdeen, SD · Low Power | 22.9 mi | WNW (295°) | UHF RF 36 | ○ Fringe — Deep Outdoor |
Closest city guide: Groton, SD Free TV Channels (8.1 mi from ZIP 57439 center) · Browse all South Dakota cities & ZIPs.
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