I want to try a tape measure antenna some day.? If you want something a little more omnidirectional, try a quarter wave ground plane:??.
I have built several.? If you are keeping a short budget for your radio activities, you can use RG-6 coax with an HT.? It's cheaper than RG-8X or RG-8.? It is rated for 75 ohms rather than 50, but I have had no problems with it.? I have not tried it with more than 5w transmit power.? Probably not a good idea since this coax is intended?for hooking up cable TV signals.? If you don't have any sitting around, you should probably spring for some flavor of 50 ohm coax.