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Page last updated on Tuesday June 22, 2010

RA-1A VHF Antenna

RA-1A VHF Antenna
Figure 1. RA-1A VHF Antenna

Name/
Description
Standard Frequency Bands* Number of
Elements
Antenna Gain Connections on Antenna Handheld Fixed Site Land
Vehicles
Boats &
Ships
Aircraft
paddle (loop) 148-152 MHz
150-154 MHz
159-162 MHz
164-168 MHz
168-172 MHz
170-174 MHz
216-220 MHz
0 -8 dBd BNC female
Cable not included
       

The RA-1A antenna is a directional, "paddle" or loop antenna that is designed for "close in work" at short range. The range is about 25% of that achieved using a standard RA-2AK (H-antenna). To use the paddle most effectively the transmitter is located using the "null" rather then the "peak" in the antenna's pattern. This takes some practice but, when the technique is perfected this approach allows the user to find "shed collars" and mortalities. The antenna can also be used to locate animals on a slope, arboreal animals climbing in trees, and even provide some estimation of the angle (relative to the horizon) of a bird in flight.

Specifications

Frequency Ranges 148-150MHz, 150-152MHz, 159-161MHz, 164-168MHz, 168-170MHz, 172-174MHz
Gain -8 dBd
Front to back ratio 0 dB
Connector BNC female
Number of elements 0
Reception Radiation Pattern RA-1A reception radiation pattern

Accessories/Replacement Parts

RW-2 Coaxial Cable
RW-2, coaxial cable, 5ft

For other coaxial cable lengths, please visit our cables page.

Service Commitment

Since 1970, Telonics has built a reputation based on product quality, product support, service, and customer satisfaction. Telonics strives to produce the highest quality products, and to support those products accordingly.

Because of extreme conditions and the unpredictable nature associated with most telemetry applications, problems occasionally arise. Most problems can be resolved quickly. In all cases, we hope to be able to work in partnership with users to resolve problems to the user's satisfaction and to uphold our demonstrated commitment to excellence. If problems should arise, all products must be returned to our factory for failure analysis.

Warranty: VHF Receiving Antennas Show