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spe - 1 3 - 8 - 019 / a / ez page 1 of 1 specification is.05 915 mhz hercules ism band antenna part no. : is.05 .b.301111 product name : 915 mhz hercules ism band antenna screw - mount (permanent mount) feature s : ? low profile - height 29mm and diameter 52mm ? hea vy duty screw mount ? uv and vandal resistant abs housing ? ip67 C waterproof ? standard cable is 3m rg174 with sma (m) - connector fully c ustomizab le ? rohs compliant
spe - 1 3 - 8 - 019 / a / ez page 2 of 2 1 . introduction th e 915 mhz hercules ism a ntenna is a high performance steel thread - mount ism antenna for external use on vehicles and outdoor assets worldwide . omni - directional high gain across all bands ensures constant reception and transmission. durable uv resistant abs housing is resistant to vandalism and direct attack. at only 29 mm h e igh t it compl ies with the latest eu height restrictions directives for roof - mounted objects, with a diameter of 52 mm. designed to not catch on tree - branches. the antenna ca n be mounted on metal structures. 2 . specification electrical standard ism band (mhz) 91 5 frequency (mhz) 902 - 928 cable length (m) 0.3 1.0 2.0 3.0 5.0 return loss (db) - 13 .68 - 13 .86 - 15 .16 - 14.61 - 17.54 efficiency (%) 27 .49 4 4 .13 38 .36 27.09 21.10 gain (dbi) 1.15 2.75 3.14 1.85 0.25 polarization linear impedance 50 ohms max input p ower 10 watts vswr <2 .5 :1 *note: the return loss, efficiency and gain in the above t able, were measured o n 30 x30 cm metal plate with rg 174 cable . for a specific case performance refers to the below plots.
spe - 1 3 - 8 - 019 / a / ez page 3 of 3 mechanical dimensions height = 29 mm and dia meter = 52 mm cable length 3m rg 174 C fully custo mable connector sma - m ale C fully customable casing uv resistant pvc base and thread nickel plated steel thread diameter 18 mm weather proof gasket rubber sealant rubber stopper environmental protect ion ip67 corrosion 5% nacl for 96hrs - nickel plated steel base and thread temperature range - 40c to +85c thermal shock 1 00 cycles - 40c to +85 c humidity non - condensing 65c 95% rh shock (drop test) 1m drop on concrete 6 axes cable pull 8 kg f recommended torque setting for mounting 70lb/foot maximum torque setting for mounting 100lb/foot *note: specifications may be s ubject to change
spe - 1 3 - 8 - 019 / a / ez page 4 of 4 3 . test set up figure 1. is.05 antenna test set up in free space, 30 x30 cm metal plate and 6 0 x60 cm metal plate , r&szvl6 vna (left) and r&s4100 ctia 3d chamber (right). y x z
spe - 1 3 - 8 - 019 / a / ez page 5 of 5 4 . antenna parameters 4 .1 return los s figure 2 . return loss of the 915 mhz he rcules ism a ntenna in free space figure 3 . return loss of the 915 mhz hercules ism antenna o n 30 x30 cm metal plate.
spe - 1 3 - 8 - 019 / a / ez page 6 of 6 figure 4 . return loss of the 915 mhz he rcules ism a ntenna o n 60 x60 cm metal plate. 4 .2 efficiency figure 5 . efficiency of the 915 mhz he rcules ism a ntenna in free space.
spe - 1 3 - 8 - 019 / a / ez page 7 of 7 figure 6 . efficiency of the 915 mhz he rcules ism a ntenna o n 30 x30 cm metal plate. figure 7 . efficiency of the 915 mhz he rcules ism a ntenna o n 60 x60 cm metal plate.
spe - 1 3 - 8 - 019 / a / ez page 8 of 8 4 .3 gain figure 8 . gain of the 915 mhz he rcules ism a ntenna in free space. figure 9 . gain of the 915 mhz he rcules ism a ntenna o n 30 cm metal plate.
spe - 1 3 - 8 - 019 / a / ez page 9 of 9 figure 10 . gain of the 915 mhz he rcules ism a ntenna o n 60 cm metal plate. 4 .4. radiation pattern figure 11. radiation pattern at 900 mhz, figure 1 as reference (db), with 2 m rg174 cable and free space .
spe - 1 3 - 8 - 019 / a / ez page 10 of 10 figure 1 2 . radiation pattern at 915 mhz, figure 1 as reference (db), with 2 m rg174 cable and free space . figure 1 3 . radiation pattern at 930 mhz, figure 1 as reference (db), with 2 m rg174 cable free space .
spe - 1 3 - 8 - 019 / a / ez page 11 of 11 figure 1 4 . radiation pattern at 900 mhz, figure 1 as reference (db), with 2 m rg174 cable and 30x30 cm metal plate . figure 1 5 . radiation pattern at 915 mhz, figure 1 as reference (db), with 2 m rg174 cable and 30x30 cm metal plate .
spe - 1 3 - 8 - 019 / a / ez page 12 of 12 figure 1 6 . radiation pattern at 930 mhz, figure 1 as reference (db), with 2 m rg174 cable 30x30 cm metal plate . figure 1 7 . radiation pattern at 900 mhz, figure 1 as ref erence (db), with 2 m rg174 cable and 60x6 0 cm metal plate .
spe - 1 3 - 8 - 019 / a / ez page 13 of 13 figure 1 8 . radiation pattern at 915 mhz, figure 1 as reference (db), with 2 m rg174 cable and 6 0x 6 0 cm metal plate . figure 1 9 . radiation pattern at 930 mhz, figure 1 as reference (db), with 2 m rg174 cable 60x6 0 cm metal plate .
spe - 1 3 - 8 - 019 / a / ez page 14 of 14 5. drawings
spe - 1 3 - 8 - 019 / a / ez page 15 of 15
spe - 1 3 - 8 - 019 / a / ez page 16 of 16 6. i nstallation recommended torque for mounting is 95nm or 70ftlbs maximum torque for mounting is 135.6nm or 100ft lbs
spe - 1 3 - 8 - 019 / a / ez page 17 of 17 7. packaging

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