User's Manual

CHAPTER 8
ANTENNA SETUPS
Revised: 2 Jul 08 8-3 EST P/N AA107G
Note: A -3 dB loss means you have lost 1/2 of your signal or transmitter power. A +3 dB gain means you have doubled (x2)
your signal or transmitter power.
Example:
A 6 dB antenna will increase the radiated output power of a 1 watt transmitter to 4 watts {times 4 = 3 dB (x2) + 3 dB
(x2)} and increase the received signal strength to receiver times 4.
WEATHER PROOFING COAX CONNECTIONS
1. Coat the threads of the connectors with silicone lubricant prior to assembly (See Note 1) and hand tighten. Care should be
taken not to get any lubricant on the center conductor.
2. Wrap the connector assembly with a vapor barrier patch for weather proofing (See Note 2), ensuring to overlap onto the coax
cable approximately 1 1/2 inches.
3. Apply an electrical coating (sealing agent) over the vapor barrier patch for added protection (See Note 3).
Notes:
1. Dow Corning RTV-3140 or equivalent.
2. Suggested vendors:
VAPOR-WRAP
Decibel Products
3184 Quebec St.
Dallas, TX 75356
214-631-0310
VYNIL-MASTIC, P/N 2200
3-M Company
Customer Service
512-984-1800
3. SCOTCHKOTE, 3-M Company, or equivalent.