Comet HD-5M Mobile Antenna Adjustable Lip Mounts create the perfect pairing for your antenna support. Combining their RS-840 bracket and CK-3M5 deluxe coax cable assembly, these Comet HD-5M lip mounts offer a quality appearance with low-loss coax balance and easy installation. The mounts adjust in three planes, have a soft rubber pad to protect your vehicle's paint, and are held firmly in place with four large set screws. The first 18 in. of coax is mini-type for a better fit through the weather seal, and the coax cable is fitted with 24k gold-plated SO-239 and PL-239 connectors. A note about Comet coax: The mini coax is neither RG-188 nor RG-174… it is actually 1.5D-QEFV Japanese coax. Comet states it is 'RG-174 type' coax because they have similar loss and diameter specifications. Initially RG-188 was used in comparison but was changed to the RG-174 comparison because they are more similar. The balance of the coax is Japanese 3.5D-QEFV. There is no 'RG' equivalent to 3.5D-QEFV. RG-58 connectors will not fit the 3.5D-QEFV coax, the Comet coax has a larger outside diameter and a larger central core and has about 30 percent less loss than RG-58. All of the coax cables produced by Comet use the Comet (Japanese) low loss coax. Due to the use of mini coax, power specs for Comet HD-5M mobile lip mounts are: * HF: 100 W * VHF: 75 W FM * UHF: 50 W FM