Phantom or Low profile Whipless antenna is tough and low-profile and the revolutionary design features an omni-direcdtional radiation and vertical polarization components. This gives the antenna frequency agility, low visibility, and a low angle radiation pattern that is superior to traditional gain antennas in most ap. Low-profile cavity-backed crossed-slot antenna with a single-probe feed designed for 2.34-GHz satellite radio applications Abstract: This paper describes a novel, low-profile antenna for the satellite digital audio radio service.

1. Low Profile 2-meter Slot Antenna
2. Low Profile 2 Meter Slot Antenna Preamplifier
3. Low Profile 2 Meter Slot Antennas

• Antenna projects for 144 MHz category is a curation of 149 web resources on, Feed line Dipole for 2 Meters, OCF 2 Meter Sleeve Dipole Antenna, Simple VHF Antenna. Resources listed under Antenna for 2 meters category belongs to Antennas main collection, and get reviewed and rated by amateur radio operators.
• Dropping the latter's above-ground vertical profile to a more reasonable 52 feet would only reduce its gain advantage to about 3.5 dB, and further reducing the vertical profile to a low 32 feet would put the gain advantage at a still-worthwhile 2.8 dB.

Description

Benefits:

• Rugged construction for years of reliable service
• Low noise floor picks up weak signals better than comparable wire or plastic enclosed antennas
• Wide bandwidth, (4+ MHz across the 2 meter band). No need to retune
• Omnidirectional RF radiation pattern is balanced for communicating with stations at or slightly above the horizon line.
• Pretuned and ready to go for the 2 meter amateur radio band

KB9VBR 2 Meter J-Pole Antenna Specifications:

Low Profile 2-meter Slot Antenna

• Constructed out of 1/2 inch copper tubing
• Overall length 69 inches
• radiator 58 inches
• matching stub 19 inches
• Choice of SO-239 or N Female connector is soldered on at the point of lowest SWR
• Omnidirectional radiation pattern
• Gain is about 3dbi or about 2.5dbd compared to a 1/4 wave ground plane

There are literally hundreds of antennas on the market, what makes this antenna any better than some of the higher priced you’ve seen or experienced? The simple answer is that it just plain works great. Dollar for dollar, the KB9VBR J-Pole antenna may be the best value on the amateur radio antenna market.

Low Profile 2 Meter Slot Antenna Preamplifier

Dual Band Performance in a single antenna:

Low Profile 2 Meter Slot Antennas

Each antenna is individually tested and tuned for optimum performance on their respective bands. The two meter antenna is tuned to 146MHZ (1.2:1 SWR or less at 146MHz), and the SWR is 1.4:1 or less throughout the entire 2 meter band. This antenna also works great as a dual band antenna. The antenna will tune up on 70cm for excellent dual band performance.