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  The Lowdown
630 Meter Antenna for Amateur Radio
Model 630.PD
630 Meter Antenna 
Related Link 
Printable Spec Sheet 
"The Lowdown" gets high marks during testing."
The Lowdown Amateur Radio Antenna offers amateur radio enthusiasts a convenient way to communicate on 630 meters in a confined area. Designed to be centered above a horizontal groundplane, this antenna is amazingly compact and lightweight, making it simple to set up, take down, transport and store. Its center-loaded, base-fed design and capacitive top hat yield excellent efficiency given its compact size.
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email or call us directly at 616.772.2300 x102 (9-5 eastern).
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Specifications *
  • Type: LF base, vertical, whip, omnidirectional.
  • Impedance: 20-33 ohms with 25’-10' radius groundplanes, respectively.
  • Efficiency: up to 3.0 %.
  • Power rating (approx.): 200-watt carrier.
  • Frequency coverage: 472 – 479 kHz (630-meter band).
  • Operating height AGL: 24’ nominal.
  • Assembled length: 21.54’.
  • Element diameters: base: 1.5”; coil: 3.75”; midtip/tip: 1.5”/1.0”.
  • Capacitive hat: 120” diameter (maximum).
  • Breakdown: 4 pieces plus 6-element capacitive top hat, longest element 94”.
  • Tunable adjustments: capacitive top hat diameter (whip length).
  • Weight: 18.9 lbs.
  • Material: aluminum (anodized), fiberglass reinforced PVC.
  • Hardware: stainless steel.
  • Feed line connector: ¼” screw stud.
  • Mounting type recommended: 1.5” Insulated, block mounts.
  • Mounting format: top of mast or pole.
  • Mounting structure: 4” pole, 4’ height (typical).
  • Wind surface area: 3.15 square feet.
  • Wind survivability rating: 140 mph guyed; 100 mph unguyed (48” mount separation).
  • Bandwidth: 6 kHz (3:1 SWR); 4 kHz (2:1 SWR).
Future Options
  • Block mounts.
  • Mast/stands.
  • Matching transformers.
  • Groundplanes.

 * These specifications are subject to change without notice.

630 Meter Antenna Full View 
The above support stand and groundplane shown with the antenna are future options.
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