Looking for a GREAT PRICE on a TOP-QUALITY surge suppressor to protect your expensive receiver, transmitter, or transceiver? Look no more! Through a very large purchase ( HUNDREDS available ) we are pleased to offer an unbelievable price on these famous Transi-Trap surge protectors by Alpha-Delta Communications, Inc., �of Manchester , Ken tucky , a world leader in surge suppression and electronic equipment protection. This is the very broad-band model TT3G50, which has excellent specifications from DC to 3 gigahertz! This type is furnished with type "N" female connectors, as well as needed installation hardware, installation instructions, insertion loss specifications sheet, and mounting illustrations. They are rated for up to 200 watts continuous transmitter output power at frequencies as high as 3 gigahertz, and utilize a fast-acting , replaceable ARC-PLUG (tm) gas tube module, making the unit easily field repairable after a very large surge. The Defense Logistics Agency has assigned a national stock number (NSN) to this item. (NSN 5920 01 5470278) after extensive testing and military approvals. �The model TT3G50 allows DC control voltages to pass through the device in remote control applications, and also allows for "in circuit" cable sweeps. The model TT3G50 measures 2.375 inches wide (measured across the type N connectors) X 1.5 inches tall including the brass cap on top, X� 1 inch thick. Weight, as packaged in manufacturer's original bag with furnished hardware and documentation, is 4.5 ounces (127 grams). NOTE: The TT3G50 is easily changed from the 200 watt version which we are offering for sale to become the 2,000 watt rated version, by simply replacing the gas discharge cartridge. The 2,000 watt cartridge is available direct from Alpha Delta, the manufacturer. (See link to the manufacturer's website, below) �The Alpha Delta part number for the 2,000 watt cartridge is 3G50HP. Price as of August, 2008 was quoted at $15.90 each. The 2,000 watt cartridge is less sensitive, in order to permit more transmitted power to pass through without firing, but as a consequence, the 2000 watt cartridge does not provide as great a degree of protection to sensitive equipment as the much more sensitive 200 watt rated cartridge that we supply with our units for sale.� Always use the lowest power rated cartridge you can in order to maximize protection to your equipment. See the manufacturer's web page for this device, click HERESee a .pdf file of the specification sheet enclosed with each model TT3G50 surge protector, click HERE See the insertion loss plots for the model TT3G50 surge protector, click HERE See the installation detail sheet enclosed with the model TT3G50 surge protector, click HERE Now the best part of all..�� This unit retails at $59.95, but through our large surplus purchase, we are offering these for an outstanding $29.99 each! � We think that this (below half price) �is well below dealer cost!