™
ANT-868/916-PMA DATA SHEET
Product Dimensions
0.24”
(6.0)
0.39”
(10.0)
Description
PMA Series 1/4-wave whip antennas combine
outstanding value and unique style. The stylish
package is resistant to damage and abuse thanks to its
highly flexible internal element. The PMA mounts to a
PCB via a single screw and meets Part 15
requirements.
2.60”
(66.0)
Features
0.71”
(18.0)
Low cost
Omni-directional pattern
Fully weatherized
Flexible main shaft
Rugged & damage-resistant
Screw-mount
0.27”
(6.8)
0.39”
(9.8)
Electrical Specifications
Center Freq.
Bandwidth
Wavelength
VSWR
Impedance
Connection
Covers 868MHz and 902 - 928MHz
190MHz
1/4-wave
<1.9 typ. at center
50 ohms
Screw-mount: 6-32 UNC Screw (included)
6-32 UNC
Thread
0.24”
(6.0)
0.08”
(2.0)
0.06”
(1.5)
Electrical specifications and plots measured on 4.00” x 4.00” reference ground plane
Note: Electrical specifications and plots measured on 4” x 4” reference ground plane
Ordering Information
0.14”
(3.5)
ANT-868/916-PMA
0.39” 0.31”
(10.0) (8.0)
VSWR Graph
S11 SWR
1:1.471
2:1.477
Polar Plot & Gain Information
Monopole antenna gain and radiation patterns are dependant on
the ground plane and layout of the end product. Since antenna
manufacturers do not measure on standardized ground
references, comparison of published specifications is an
unreliable indication of actual antenna performance in an end
product. Optimum full-wave ground planes are impractical for the
majority of products on which these antennas are used (the
ground plane for 916MHz would be 26.5" in diameter, 418MHz
would be 56.5" in diameter). For this reason, Antenna Factor tests
and tunes antennas on reduced-size, compromised ground
planes. To avoid mis-comparison or inappropriate application,
gain and polar plots do not appear on this data sheet, but are
available upon request for most products.
1
2
1 CENTER 868.000MHz
2 CENTER 916.000MHz
SPAN 248.000MHz
Typical VSWR
Antenna Factor
159 Ort Lane Merlin, OR 97532
www.antennafactor.com
541-956-0931 (phone) 541-471-6251 (fax)
Rev 12-15-09
