The 911-ISP Wireless internet antenna, has been designed to give you optimum performance for the smallest package size. The new 5/16” element design decreases the effects of rain and light snow deterioration often seen in similar antennas. The heart of the 911-ISP, the folded dipole, provides a virtual flat match for over 30 MHz. The gain has been designed to roll-off quickly above range limits to prevent receiver overload from high power services above 930 MHz. The heavy duty boom and 5/16” elements, give the ISP service confidence for superior performance and longevity. The 911-ISP is a DC grounded antenna designed to work with many radios including the Wave Rider. The 3003 and 3004 Wave Rider radios have internal DC circuit protection built in. Call about special bulk pricing !