Meridian Comms PJP v3.3-UHF portable antenna

Name: Meridian Comms PJP v3.3-UHF portable antenna
SKU: 36377
Price: 75.00 USD
Availability: InStock

A portable rollup antenna used for extended range of handheld radios or temporary base station operations.

Designed by Meridian Communications in United States of America

Meridian Comms PJP v3.3-UHF portable antenna 1

Meridian Comms PJP v3.3-UHF portable antenna 2

Meridian Comms PJP v3.3-UHF portable antenna 3

Meridian Comms PJP v3.3-UHF portable antenna 4

Meridian Comms PJP v3.3-UHF portable antenna 5

Meridian Comms PJP v3.3-UHF portable antenna 6

2024-11-18T21:14:42.525Z-PJP_v3.3_UHF_FB_(web).png

2024-11-18T21:30:43.608Z-S11_Loss_457500000Hz-472500000Hz_24_11_13.png

2024-11-18T21:30:43.608Z-S11_Smith_457500000Hz-472500000Hz_24_11_13.png

2024-11-08T22:32:29.945Z-PJP v3.5 Farfield.png

2024-11-08T22:32:29.945Z-PJP v3.3 Polar RG.png

2024-11-08T22:32:29.945Z-PJP v3.3 currents.png

Buy with confidence.

Our Tindie Guarantee protects your purchase from fraud. Learn More

A portable rollup antenna used for extended range of handheld radios or temporary base station operations.

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 duty cycles
Weather-resistant (IP34)
<2% Loss on antenna structure
<1.05:1 SWR (>35dB return loss)
Field-tunable frequency center, (VNA recommended for best results)
Very low takeoff transmit angle (<3 degrees)
Common-mode currents removed with Fair-Rite RF beads x3 (Mix-31)

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) are currently in R&D, so watch for details! The maximum RF power rating for this model is 125W (watts). 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!

Feedline part numbers are: UHF-4.5-FL, UHF-9.5-FL

^power dissipation due to impedance mismatch, and signal attenuation caused by excessive length.

No country selected, please select your country to see shipping options.

Change Destination Country:

Meridian Communications Shipping Policy:

Shipping is available: Monday through Friday (excl. holidays). United Parcel Service (UPS) and United States Postal Service (USPS) are our current domestic shipping carrier options (50 states). All domestic orders (when in stock, and placed by 13:00 PST) are shipped same day! Items out-of-stock, will require 5-10 days additional shipping lead time.

International orders: United States Postal Service (USPS) is the only economical option, at this time. Rates do vary, please inquire for an estimated shipping cost and transit time to your location.