VHF Antenna
Posted: Wed Jul 16, 2008 2:24 pm
Hi all. Need to replace my VHF antenna. Defender has one that's 16' and the same model in an 8' version. Since it'll be mounted on my tower, should I still opt for the tallest?
Here's a description:
Digital antennas incorporate several technological breakthroughs which allow them to transmit farther than any other antenna.
An exclusive advanced ground system internal to all digital antennas gives these antennas greater range by directing the rf power closer to the water (see diagram above).
Most antennas lose 50 to 90 percent of the rf power due to a poorly grounded design! In order to eliminate signal loss in the antenna itself, every digital antenna is tuned for a minimum standing wave ration (swr) which approaches 1: 1that translates to low, low signal loss.
In addition, a ferrite choke bead is used to contain rf power in the antenna system, directing it into the radiating element and preventing it from leaking back into the transmission cablethis is a big problem with other antennas.
Finally, a marine grade low loss UV protected rg-8x cable is supplied to reduce transmission line loss. All antennas are made with a tough high-gloss white urethane finish.
Black and black/gold special ordered add 5%.
This model:
Gain- 10. 0 Db,
Size- 16 ft. ,
High performance VHF,
Cable- 20 ft. , Black/gold n.l.a.
Thanks.
Rick
Here's a description:
Digital antennas incorporate several technological breakthroughs which allow them to transmit farther than any other antenna.
An exclusive advanced ground system internal to all digital antennas gives these antennas greater range by directing the rf power closer to the water (see diagram above).
Most antennas lose 50 to 90 percent of the rf power due to a poorly grounded design! In order to eliminate signal loss in the antenna itself, every digital antenna is tuned for a minimum standing wave ration (swr) which approaches 1: 1that translates to low, low signal loss.
In addition, a ferrite choke bead is used to contain rf power in the antenna system, directing it into the radiating element and preventing it from leaking back into the transmission cablethis is a big problem with other antennas.
Finally, a marine grade low loss UV protected rg-8x cable is supplied to reduce transmission line loss. All antennas are made with a tough high-gloss white urethane finish.
Black and black/gold special ordered add 5%.
This model:
Gain- 10. 0 Db,
Size- 16 ft. ,
High performance VHF,
Cable- 20 ft. , Black/gold n.l.a.
Thanks.
Rick