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various antenna models used for radio telemetry animal tracking


three element folding Yagi antenna

3 Element Folding Yagi

Part No. Frequency Range
141. - 145.000 MHz
142. - 146.000 MHz
145. - 149.000 MHz
148.- 152.000 MHz
150.- 154.000 MHz
153.- 157.000 MHz
158.- 162.000 MHz
159.- 163.000 MHz
162.- 166.000 MHz
166.- 170.000 MHz
168.- 172.000 MHz
170.- 174.000 MHz
171.- 175.000 MHz
216.- 220.000 MHz

3 Element Folding Yagi

Compact and light-weight...our most popular antenna for tracking on the ground.


  • Our most popular, convenient-to-use model
  • Compact hand-held design; easy to carry and unfolds quickly
  • Custom tuned to user-specified 4 MHz range
  • Includes 1.5 meter cable

Standard Package Includes:

Antenna, 1.52 m (5 ft) RG58 cable (ATS #11606), and antenna grip (ATS #11218).

Antenna Specs

Isotropic: 7.7 dBi, Dipole: 5.6 dBi
Half power width
Horizontal-plane: 59°, Vertical-plane: 95°
Folded dimensions
85.1x10.2x4.4 cm (33.5x4x1.75 in.)
0.54 kg (1.2 lb) to 0.71 kg (1.6 lb)
Range of Ant Height
76 cm (30 in.) to 81 cm (32 in.) (For 141-175 MHz)
Range of Ant Length
106 cm (42 in.) to 86 cm (34 in.) (For 141-175 MHz)
view of folded three element yagi antenna View of folded antenna

Quick Antenna Tips

There are two basic antenna types: directional and non-directional (omni-directional). Directional antennas are typically Yagi type, non-directional are dipole type.

The reception pattern of a directional type antenna is shown below, left. The pattern for an omni-directional antenna is shown on the right.

view of the directional pattern of a yagi antenna used for radio telemetry wildlife tracking view of the omni-directional pattern of a yagi antenna used for radio telemetry wildlife tracking
  • The more elements on the antenna, the better the gain and effective range (they are also less portable!).
  • VHF systems are line of sight; the higher the antenna is above the ground, the better the range.
  • All ATS antennas include a standard length coaxial cable; longer lengths are available.

We offer a complete line of antennas for radio tracking; we can give you advice if you’re not sure what kind to use.


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