600 Watt Power
Rating*
The power rating has been increased to 600 watts on all bands
covered except 10 meters. The power limit is 400 watts on 10 meters. This
improvement now supports most solid state and 811 class amplifiers. |
New, smaller Matching Transformer
and Line Isolator
The new, low profile parts are still used in these
higher power models to maintain the stealth quality of the LP series. |
#16 Hard-drawn wire
The
standard LP model is made with #16 wire. Custom-built versions are available
with different wire types at a slightly higher price. |
Standard Vertical
Radiator
All Vertical Radiatorstm for all CAROLINA WINDOMS
will be the same. This permits the higher power rating and is more efficient
than smaller cable used in the original LP Vertical Radiator. This improvement
makes the antenna a bit heavier by a few ounces, but the performance boost is
worth it. |
Optimized for low height
installation
All LP antennas are optimized for low support heights.
Since these antennas will be most popular as portable, emergency, and hidden
antennas, I decided to optimize the matching for a support height of 25' to
35'. Installing the antenna at greater heights will improve radiation
performance, but the SWR will increase slightly when the antenna is supported
higher in the air. |
| |
* 600 watt power assumes common CW and SSB
duty-cycles. Do not use this antenna on AM, RTTY or high duty-cycle digital
modes.
PSK-31: It has not been determined, at this time, what the maximum
power will be. In normal operation, 150 to 200 watts should be possible because
most operators are not long-winded and have clean signals. However, maximum
power will depend on your installation and how long your transmitter is on.
Overheating the components in the matching transformer and Line Isolator will
deteriorate your IMD. As I gain more experience with PSK-31, I'll have more
definitive information on power limits. |
