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VDA-3231A: Quick Reference Data

Part Number -- VDA-3231A
Name: Discone Antenna
Category: VHF/ UHF Antennas
Diagram(s): Diagrams and Mounting Details
Photo(s): VDA-3231A
NATO Stock Number (NSN): 5985-20-000-4977
Frequency Range: 115 MHz to 400 MHz - for antennas (repeated below)
Features: * Broadband
* High Power
* Light Weight
* Compact
* Easy assembly / disassembly
 * Optional Mounting
Description:

The VDA-3231A is a compact broadband VHF/UHF discone antenna.  Its broad band width capability makes it perfectly suited for signal receiving and monitoring applications, as well as for use in direction finding (DF) arrays.  This antenna is also ideal for omni-directional transmitting applications requiring high power handling.

The VDA-3231A is quickly and easily assembled and disassembled.  All elements are secured via integral quarter-turn fasteners.  The lower elements are retained by individual chains to prevent loss.

The antenna can be mounted in one of two ways. By using the adapter, the antenna can be mounted in a 1.00 inch diameter hole on a horizontal platform. Without the adapter it mounts on a vertical platform using three mounting bolts.

Electrical Characteristics
Frequency Range: 115 MHz to 400 MHz
Polarization: Vertical
Azimuth Coverage
[Radiation Pattern]:		 Circular within 0.5 db
Elevation 3 db Beamwidth: 40' nominal
Impedance: 50 Ohms
VSWR: Less than 2.5:1
Input Connector: HN type jack (HN-TO-N Type Adapter Incl)
Power Handling: 1 KW (average)

Mechanical Characteristics
Weight: 12 Lbs.  (5.45 kg)
Material: Aluminum
Temperature: Operating  -55°C  to +65°C  (-67°F to +149°F)
Storage     -65°C  to +80°C  (-85°F to +176°F)
Finish: Baking Enamel (colour to customer's request)
 
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