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DS-28 Mobile GPS and GLONASS Active Antenna


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Compact & Sensitive GlONASS GPS antenna with ESD Circuit Protection for Mobile Applications

DS-28 is the most compact GPS/Glonass antenna available on the current market. Its state-of-the-art technology allows for miniature without. With good coverage almost all the way to the horizon, it performs excellently in foliage or urban canyon environment -- even in the presence of electromagnetic interference! Featuring diminutive and rugged enclosure and unparalleled performance, DS-28 is compatible with almost every GPS/Glonass receiver model on the markets and provides an excellent alternative for a vast range of GPS/Glonass applications including AVL, Vehicle Navigation, Aviation, and Military.



Physical Condition
Construction Polycarbonate- radome at top, die-cast shell at bottom/ rubber gasket for water seal in between
Dimension 46.27mm (L) x 38.19mm (W) x 12.26mm (H)
Weight 50 grams (excluding cable & connector)
Standard Mounting Magnet mount with two magnets & screw mount
Optional Mounting Plate Customized metal sheet
Cable & Connector
RF Cable 5 meter RG174/U (standard) cable, other length available
Pulling Strength 6 Kg @ 5sec with molded plastics on connector end for strain relief
Connector Available BNC,TNC,FME (to be adapted), GT5, MCX (OSX), SMA, SMB or SMC in straight or right angle
Optional Adapters Universal Connector Adapter (FME to TNC/BNC/SMA/SMB/MCX)
Antenna Element
Polarization R.H.C.P. (Right Handed Circular Polarization)
Gain @ Zenith 1.5 dBic typical
Mounted on the 70mm x 70mm square ground plane
Axial Ratio 90o?3.0dB max.
Mounted on the 70mm x 70mm square ground plane
Low Noise Amplifier
Gain 27dB @ 3V
Bandwidth 43 MHz min. @<-10 dB
Noise Figure 1.5dB Typical .
Supply Voltages 2.5 ~5V DC
Current Consumption 3V : 10.6mA+1mA, 5V : 21mA ±1mA
Output Impedance 50 ohm
Output VSWR 2.0 max.
Overall Performance (Antenna Element, LNA & Cable)
Center Frequency 1575.42 MHz ± 10 MHz & 1602 MHz ± 8 MHz
Gain At 90o 27 ± 3dB (cable loss) Note:1
Mounted on the 70mm x 70mm square ground plane
Output Impedance 50 ohm
VSWR 2.0 max.
Environmental Conditions
Operation temperature -40oC to +85oC
Storage temperature -40oC to +90oC
Relative Humidity 95% non-condensing

For GPS system developers, we recommend to order and test few samples first before placing a quantity order. The listed price is the sample price.

All customized items are not returnable for refund if the product functions as the specifications.

  • Model: DS-28
  • Shipping Weight: 0.25lbs
  • 100 Units in Stock
  • Manufactured by: San Jose Technologies

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This product was added to our catalog on Tuesday 10 November, 2015.

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