Meridian Comms PJP v3.3-UHF portable 'roll-up' antenna

Description: 8+ years of interest, 2 years of dedicated research and development, Meridian Communications is proud to bring a portable UHF antenna to the market for all users to enjoy! The Scout series PJP (Portable J-Pole) v3.3 is a "Off-Center Fed folded dipole" (aka: J-Pole) antenna that provides a very rugged structure, efficient design, adjustable center-frequency (in-band tunable), 4X greater gain^ than a stock 'rubber duck' antenna on a handheld radio, and a very low transmit takeoff angle of <3 degrees from the horizon (lower is better). The antenna's dimensions will allow it to fit comfortably into a backpack or similarly sized container. 14 gauge Copper clad steel wire elements, for 125-watt use Weather-resistant (IP34) < 1.5% Power loss on the antenna structure** <1.05:1 SWR (>35dB return loss)** Field-tunable in-band frequency, (VNA tuning recommended for best results) Very low takeoff transmit angle (<3 degrees)** Common-mode currents removed with Fair-Rite RF "Snap-On" bead (x3, Mix-31)** *4W input yields a 16W (ERP) output, 50W input yields a 200W (ERP) output! **Above RF specifications were verified with: Measall KC901K & Siglent SVA-1032X vector network analyzers This portable antenna is the most rugged & efficient antenna (of it's type) available today! Two popular UHF frequency bands to choose from, Amateur (HAM) 440Mhz (68cm) and GMRS 465Mhz (64cm) bands, other UHF frequency bands are available as "special order". VHF monoband, UHF collinear design (+10dBi), LoRa (33cm) bands are currently in R&D, so watch for details! The maximum RF power rating for this antenna is 125W (watts) and comes with a crimped (& heat-shrink sealed) BNC-female connector on the end of the antenna feed. Custom Times Microwave LMR-240UF "tuned" coaxial feedlines (though not required, but are strongly suggested) are available for these PJP v3.3 antennas with lengths defined by their loss values (-.5dB & -1.0dB) and their resonant frequency. These custom feedlines will keep the antenna efficiency*** and ERP (Effective Radiated Power) output at a maximum when used together! The higher that the antenna is mounted, greater the RF gain and maximum range that can be attained! ***power dissipation due to impedance mismatch, and signal attenuation caused by excessive length. Feedline part numbers are: UHF-5.0-FL, UHF-10.0-FL Please indicate which RF band you need when ordering, 440 MHz-HAM or 465 MHz-GMRS, thanks!

Price: 78.75 USD

Location: Las Vegas, Nevada

End Time: 2025-01-08T08:01:49.000Z

Shipping Cost: N/A USD