2 element 18MHz LFA-Q Quad Beam (1.2m)
Description
A 2 element 18MHz LFA-Q Quad-style beam antenna - Second Generation LFA Yagi !
The G0KSC LFA-Q beam antenna provides a new slant on the proven quad style beam antenna. The LFA-Q is a super-strong, super-rigid Quad which provides very high levels of gain for it's size, while at the same time maximising all round performance. Hard to beat with a direct 50 Ohm feedpoint and no matching losses and suppression of unwanted noise due to the closed loop system.
The LFA-Q deploys 2 x 1.25'' square booms one at the top of the structure and one at the bottom which enable the antenna to be ultra-rigid and stand up to extreme weather conditions such as severe ice and wind loading. Main element tubing is 1" to 7/8" to 3/4" to 5/8" to 1/2" with 3/8" loop end sections.
This 2 element LFA-Q is an excellent option if you do not have space, especially stacked !! 2 at just 10m spacing provides 15.45dBi (when placed 10m above ground)!!
Single antenna performance at 17m up (including ground gain) 12.54dBi from a boom of just 1.2m!
NOTE: With all our HF antennas we can custom design your element taper and element size requirements in order to cater for all weather and installation requirements.
Performance
Gain: 7.02dBi @ 18.1MHz
F/B: 19.15dB @ 18.1MHz
Peak Gain: 7.04dBi
Gain at 17m above Ground: 12.54dBi
Peak F/B: 19.96dB
Power Rating: 15kw+
SWR: Below 1.3:1 from 18.06MHz to 18.20MHz
Stacking Distance: 9-12m ( 10m recommended)
2 Stacked Gain @ 10m spacing: 10.45dBi
2 Stacked F/B: 20.47dBi
2 Stacked Gain @ 10m Spacing 17m above ground: 15.51dBi
Boom Length: 1.2m
Longest element: 6.71m
Loop Height: 2.45m
Weight: 11KG / 25LB
Turning Radius: 3.4m / 11' 2"
Wind Loading: 0.4 Square Metres
Wind Survival:160KPH / 100MPH
Other options available if higher wind loading/survival is required.
Customer comment on the LFA-Q:
''Very nice...assembled and installed over the last two days - even though it arrived over night!
Performs extremely well - It replaced a MET 144 8T
