Ok, we are putting our new system online in a few weeks and are ordering the antennas. Currently, we are slated to use 2 Commscope AVA5-50FX one for the Sheriffs department and one for the fire department. Both systems will be VHF 110watt running sinclair duplexers through 7/8 Heliax total run of 330f, thats from duplexer to antenna for each system. Concerns are being raised about the antennas being sufficient and if there is something better out there. What are your suggestions?