70cm Band HO Loop Antenna
The new 432 HO LOOP provides easy SSB,CW and now ATV communications out to 200 miles or more. HO LOOPS produce an omnidirectional, HORIZONTALLY polarized signal ideal for mobile and base operations. Horizontal polarity permits the HO loop to pick up 5 dB from ground gain that verticals don"t get. As with most horizontally polarized antennas, performance improves dramatically with height above ground. By stacking two HO LOOPS, another big gain jump occurs (see pattern and note the great reduction of high angle lobes). For terrestrial use, the HO LOOP does not need groundplane, so mounting options are simplified. Mounting over a car roof at 6 to 10 inches produces 2.5 dBd gain dome shaped pattern upward for LEO satellite operation while still maintaining modest terrestrial performance.
Physically, the 432 HO loop is a 4.313" square loop, fabricated from two 1/4" dia. aluminum rods to minimize losses. The sealed feed block provides weather protection with minimum wind drag. The heart of this unique design is the shorted stub matching to a 50 ohm coax feedline. Mounting is via a single 3/8" hole ( standard for most mobile hardware).
Specifications:
- Frequency Range: 430 - 436MHz
- Gain: 5dBd
- Max Power: 800 watts
- Mounting: 3/8 - 24
- Stacking Distance: 16"
- Connector: N-Female
