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spe - 14 - 8 - 095/ b /wy page 1 of 23 ma.131.a.l021111.k028111 specification part no. : ma131.a.lk.00 2 product name : ma131 gps/glonass and ism band 915 mhz 2 in 1 combination hercules screw mount ( p ermanent thread mount) feature s : stable and high efficiency 4dbi gain 915 mhz (902mhz to 928mhz) ism band C C rohs compliant photo:
spe - 14 - 8 - 095/ b /wy page 2 of 23 ma.131.a.l021111.k028111 1. introduction the ma131 hercules antenna is a gps/glonass and ism band 915mhz combination 2in1 high performance solution for the most reliable asset tracking and remote monitoring. the integrated metal thread - mount allows for external use on vehicles and outdoor assets worldwide. the 915mhz ism band antenna is ideally mounted on a ground - plane but works well also in free - space mounting conditions. the omni - directional gain pattern , with a peak gain of 4dbi when using shorter cable lengths , ensures constant reception and transmission. the gps/g lonass antenna has been optimized to work on both gps and glonass bands , allowing the antenna to see the maximum amount of satellites in the sky and improving tracking accuracy enormously especially in built up areas, such as urban canyons where traditiona l gps - only solutions struggle to maintain a lock driving around corners. a front - end saw filter attenuates any nearby out of band wireless transmissions so the gps lna is not driven into compression or damaged . the hercules is also prized by the leading w ireless device brands globally due to its unique mechanical construction. the compact size and rugged polycarbonate construction , which can withstand direct attack and hazards such as tree - branches, coupled with a waterproof rating of ip67 and ip69k (water proof against high pressure industrial cleaning from top and bottom sides) are un - matched in the industry. the s tandard cable length and connector option is 200mm rg316 and sma(m). the c able length and connector are customizable. taoglas supplies low loss extension cables according to your requirement. maximum cable length should not go beyond 5 met er s in order to maintain adequate antenna performance. the hercules is also available in white. contact your regional sales office for further information.
spe - 14 - 8 - 095/ b /wy page 3 of 23 ma.131.a.l021111.k028111 2. s pecification electrical ism band 915mhz operation frequency (mhz) 915 mhz cable length (m) 0. 2 1 2 3 5 i n the free space average gain (db) - 2.91 - 3.71 - 4.21 - 5.01 - 6.62 efficiency (%) 51.08 42.49 37.86 31.49 21.79 peak gain 0.83 0.04 - 0.46 - 1.26 - 2. 86 cable length (m) 0. 2 1 2 3 5 o n the 30x30cm ground plane average gain (db) - 2.94 - 3.74 - 4.24 - 5.04 - 6.64 efficiency (%) 50.79 42.24 37.65 31.31 21.67 peak gain 4.32 3.52 3.02 2.21 0.62 max vswr 2:1 m ax . return loss (db) - 10 polarization linear impedance 50 ohms max input power 5 watts electrical gps - glonass frequency 1574~1606mhz impedance 50 ohm vswr 2.0 max gps patch gain @ zenith - 1.4db i passive gain @ zenith glonass patch gain @ zenith - 1.3dbi passive gain @ zenith out band reject ion fo = 1575.42mhz fo 30 mhz 5db min. fo 50 mhz 20db min. fo 100 mhz 25db min. input voltage typ. 2.5~5.5v total gain @ zenith 27db typical at 3.0v current consumption 10ma typical at 3.0v noise figure 1.3db typical
spe - 14 - 8 - 095/ b /wy page 4 of 23 ma.131.a.l021111.k028111 mechanical dime n sio n (mm) height = 2 8.5 mm and diameter = 4 7.8 mm cable length 200mm rg316 of ism band antenna C fully custom iz able 200mm rg174 of gps/glo na ss antenna C fully custom iz able connector both are sma(m)st C fully custom iz able casing uv resistant p c base and thr ead nickel p lated steel thread diameter 18 mm weather proof gasket cr4305 sealant rubber stopper weight 140g (200mm cable length) environmental ratings protection ip67 & ip69k corrosion 5% nacl for 48 hrs - nickel plated zinc base and thread tempera ture range - 40c to +85c thermal shock 100 cycles - 40c to +85c humidity non - condensing 65c 95% rh shock (drop test) 1m drop on concrete 6 axes cable pull 8 kgf recommended torque setting for mounting 24.5nm maximum torque setting for mounting 29 .5nm
spe - 14 - 8 - 095/ b /wy page 5 of 23 ma.131.a.l021111.k028111 3. antenna characteristics 3.1 test s etup ma.131.a.lk .002 antenna was tested with r&s znb - 8 network analyzer. in free space on 30x30 ground plane taoglas measured the antenna with tw o states - in free space , and mounted on a 30x30cm ground plane
spe - 14 - 8 - 095/ b /wy page 6 of 23 ma.131.a.l021111.k028111 4. 915 mhz antenna 4.1 return loss 4.1 .1 i n free spa ce 4.1.2 on 30x30cm ground plane
spe - 14 - 8 - 095/ b /wy page 7 of 23 ma.131.a.l021111.k028111 4.2 average gain 4.2 .1 in free space 4.2 .2 on 30x30cm ground plane
spe - 14 - 8 - 095/ b /wy page 8 of 23 ma.131.a.l021111.k028111 4.3 efficiency 4.3 .1 in free space 4.3 .2 on 30x30cm ground plane
spe - 14 - 8 - 095/ b /wy page 9 of 23 ma.131.a.l021111.k028111 4.4 peak gain 4.4 .1 in free space 4.4 .2 on 30x30cm ground plane
spe - 14 - 8 - 095/ b /wy page 10 of 23 ma.131.a.l021111.k028111 4.5 antenna radiation patterns 4.5.1 antenna s etup the antenna radiation pattern test setup is shown below. in free spa ce on 30x30 ground plane y x z y x z
spe - 14 - 8 - 095/ b /wy page 11 of 23 ma.131.a.l021111.k028111 4.5.2 antenna r adiation p atterns in free space xy plane xz pla ne x y z x
spe - 14 - 8 - 095/ b /wy page 12 of 23 ma.131.a.l021111.k028111 yz plane on the ground plane xy plane y z x y
spe - 14 - 8 - 095/ b /wy page 13 of 23 ma.131.a.l021111.k028111 xz plane yz plane y z z x
spe - 14 - 8 - 095/ b /wy page 14 of 23 ma.131.a.l021111.k028111 5. gps - glonass antenna 5.1 system block diagram 5.2 gps - glo n a ss passive antenna result 5.2.1 return l oss
spe - 14 - 8 - 095/ b /wy page 15 of 23 ma.131.a.l021111.k028111 5.2 .2 vswr
spe - 14 - 8 - 095/ b /wy page 16 of 23 ma.131.a.l021111.k028111 5.2 .3 smith c hart
spe - 14 - 8 - 095/ b /wy page 17 of 23 ma.131.a.l021111.k028111 5.3 gps - glonass radiation patterns 5.3.1 .1 1575.42 mhz xz - plane
spe - 14 - 8 - 095/ b /wy page 18 of 23 ma.131.a.l021111.k028111 5.3 .2 1575.42 mhz yz - plane 5.3 .3 1602 mhz xz - plane
spe - 14 - 8 - 095/ b /wy page 19 of 23 ma.131.a.l021111.k028111 5.3 .4 1606 mhz yz - plane
spe - 14 - 8 - 095/ b /wy page 20 of 23 ma.131.a.l021111.k028111 5.4 g p s - glonass - l o w n o i s e a m p l i f ie r 5.4.1 s21_ g a i n 5.4 .2 noise figure
spe - 14 - 8 - 095/ b /wy page 21 of 23 ma.131.a.l021111.k028111 6. drawing
spe - 14 - 8 - 095/ b /wy page 22 of 23 ma.131.a.l021111.k028111 7. installation
spe - 14 - 8 - 095/ b /wy page 23 of 23 ma.131.a.l021111.k028111 8 . packaging

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