JCM7-1575 GPS L1 Jammer Antenna | 1550-1590 MHz 7 dBi High Gain
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JCM7-1575

GPS Band Manpack Jammer Antenna

ModelProduct DescriptionFrequencyGainDownloadPDFEnquiry
JCM7-1575GPS Band Manpack Jammer Antenna1550-1590MHz7 dBiDownload DatasheetDownload ManualPost Enquiry

The JCM7-1575 is a high-performance Manpack Jammer Collinear Antenna specifically engineered for the 1550–1590 MHz frequency range. This aperture is a critical asset for tactical denial of GNSS signals, specifically covering the GPS L1 band. By delivering a concentrated 7 dBi gain in a compact 500 mm form factor, it provides dismounted Electronic Warfare (EW) teams with the power density required to neutralize satellite-based navigation and timing for adversary assets.

Design: Precision GPS L1 Band Mastery

The JCM7-1575 is designed for operators who require surgical precision and high standoff range in the 1.5 GHz spectrum.

  • High-Efficiency 7 dBi Gain: Achieving 7 dBi in a portable configuration allows for a significant expansion of the electronic "denial bubble." This gain level focus RF energy horizontally to establish a dominant Jamming-to-Signal (J/S) ratio against weak satellite downlinks.
  • Focused 36° Vertical Beamwidth: The antenna compresses its radiation into a 36-degree vertical beam. This ensures that the 50W of transmitter power is directed toward the horizon, maximizing signal saturation where ground-based or low-altitude threats are located.
  • Direct N-Male Integration: Featuring an N-Male termination, the antenna mounts directly onto the equipment/transmitter. For high-mobility missions, the JCM7-1575-S version (with integrated spring base) is available to absorb mechanical impacts and protect the transmitter's RF interface.

Construction: Combat-Tier Hardening

Built for the rigors of modern field operations, the JCM7-1575 is a "zero-tuning" tactical asset designed for rapid deployment.

  • Rugged ABS Radome: Internal high-quality brass radiating elements are protected by a 25 mm diameter ABS radome. This housing is UV-stabilized and RF-transparent, shielding the internal architecture from ice, sand, and moisture without signal degradation.
  • Lightweight & Agile: At only 500 mm (19.6 inches) and 350 grams, it minimizes physical fatigue and snagging risks during long-duration foot patrols.
  • Ultra-Corrosion Resistance: Utilizing 6063T6 aluminum alloy and premium brass, the antenna is built to maintain electrical integrity in severe environmental conditions.

Technical Features

  • Targeted 1550–1590 MHz Coverage: Optimized for GPS L1 band denial and GNSS signal suppression.
  • 7 dBi Omni-Directional Gain: Significantly expands the jamming perimeter over standard unity-gain whips.
  • 50W RF Power Handling: Robust enough for continuous-duty portable EW and jamming operations.
  • Superior VSWR (1.5:1): Ensures maximum power transfer and protects sensitive portable electronics.
  • All-Weather Architecture: Cylindrical enclosure reduces wind loading and resists ice formation.
  • Military Finish: Finished in tactical Olive Green for low visual signature in the field.

 

Design Features: The JCM7-1575 Jammer manpack collinear antenna is rugged all weather model, enclosed in a ABS radome, uses high quality brass radiating elements and does not require any field tuning or adjustments. The compact size of omni-directional antenna allows easy handling, shipping and highly suitable for transmitting, receiving including GPS L1 band without having the requirement of multiple antennas. Cylindrical enclosure is used for low wind loading and for minimal effect of ice formation on the antenna operation as well as providing an aesthetically pleasing appearance.
Constructions: The high gain jammer manpack collinear antenna is supplied complete in assembled condition. This high gain jammer manpack antenna has smooth VSWR and constant Gain over the 1550-1590 MHz frequency band including GPS L1 band. The JC7-1575 jammer antenna consists of ultra corrosion resistant radiating elements and enclosed in ABS housing. The ABS has excellent transparency for Radio Signal and mechanically Robust to support extra mechanical strength to the antenna.
Mounting:The high gain jammer man pack collinear antenna is designed & supplied for Man-pack application. The high gain jammer man pack antenna uses N-Male termination at the base so that same can be mounted directly on the equipment/transmitter.
NOTE: Part # JCM7-1575-S with spring fitted at base. Add 100mm in overall length and add 250 Grams in gross weight.
 

Electrical Specifications:
Frequency Range1550-1590MHz.
Gain7 dBi
Bandwidth1550 - 1590 MHz
PolarizationVertical
Input Impedance50 Ohms
Radiation PatternOmni-directional
Beamwidth -3dB.36 Degrees (Vertical)
VSWR - Equal To or Better Then1.5:1
RF Power Handling Capacity50 Watts
Input TerminationN-Female


 

Mechanical Specifications:
Antenna MaterialsABS, Brass, Aluminum
Wind Rating80 Km/Hr.
Mounting TypeDirectly on Equipment
Overall Length500 mm
Shipping Length650 mm
Support Pipe Material6063T6 Aluminum Alloy
Radiating MaterialHigh Quality Brass
Radome MaterialHigh Strength ABS
Radome Outer Diameter25 mm
Gross Weight350 Grams


 

Environmental Specifications:
Operating Temperature(-) 30 to +70 Degrees Celsius
Storage Temperature(-) 40 to +80 Degrees Celsius
Humidity0 to 95% RH