JCPD-HD - Dual input Panel

Jampro Dual Input Digital JCPD-HD FM Antenna

The JAMPRO JCPD 4-Dipole Flat Panel Antenna

JCPDThe JAMPRO JCPD antenna is a circularly polarized 4-dipole flat panel antenna system. Rugged galvanized steel construction insures many years of dependable performance in even the harshest environments. Protective lightweight radomes may be added as protection against heavy ice buildup. The JCPD antenna has proven to have excellent bandwidth, with typical VSWR of <1.10:1 or better. Many standard and custom directional patterns are available to fit any of your coverage requirements. Configured for dual inputs, analog and HD. The Dual Input Digital antenna provides isolated and separate inputs for both analog and digital transmitters.

This approach allows the digital transmitter to operate at it's target power with NO power lost in reject loads and NO power reduction caused by lossy digital injectors. By virtue of the Jampro built power distribution system, extra reliability is built into the antenna system. There is no single point failure that can take the antenna totally off the air. Over Built means reliability.

Because the system uses two separate and isolated RF paths, the antenna system is fully redundant. Except for power levels, either input could be used for either analog or digital RF. This design approach allows for easy antenna system, coax or transmitter testing. The HD Radio Antenna / I.B.O.C. compatible feeder system allows dry air or nitrogen pressurization from the input connectors through to the radiating dipoles in order to protect the antenna from damage causing moisture invasion.

The antenna drives all elements with both analog and digital signals from separate transmitter and coax systems for the ultimate in isolation and redundancy.

The antenna system is tested full size at the Jampro factory. Directional Patterns or Pattern Optimization (non DA) are available, certified full size on our expansive testing range. By measuring the system at the same size as will be used at the station, no errors of scale can creep into the project to distort the coverage pattern. Factory measured performance can easily be obtained at the station's site.

JAMPRO Dual Input Digital FM Broadcast Antenna Specifications
For the Flat Panel Dual Input configuration
# of Bays Panels Per Bay Gain (times) Gain (dB) Antenna Height (ft.) Net Weight (lbs) Wind load (lbs)
1 2 1.60 2.00 7 142 348
3 1.10 1.40 284 626
4 3.20 5.10 426 869
2 2 3.20 5.10 17 284 695
3 2.20 3.40 568 1251
4 1.60 2.00 852 1738
4 2 6.50 8.10 37 568 1390
3 4.50 6.50 1136 2502
4 3.30 5.20 1704 3475
6 2 9.80 9.90 57 852 2085
3 6.80 8.30 1704 3753
4 4.90 6.90 2566 5213
8 2 13.20 11.20 77 1136 2780
3 9.20 9.60 2272 5004
4 6.60 8.20 3408 6950

Notes:

  1. Weights and wind loads shown do not include mounting brackets, feed lines or power dividers.
  2. Wind load and ratings are based on 50/33 psf (98 MHz spaced one wavelength apart).
  3. Radomes optional. Specifications on request.
  4. All inputs EIA flange, female. 50 ohm.
  5. In an omni-directional configuration, circularity is +/- 2 dB or better.(5 ft. face or smaller
  6. VSWR for individual panels and complete systems are typically 1.10:1 or better.
  7. Power rating is 10 KW per panel, with special higher and lower power designs available.
  8. Total number of channels may be limited by total input power.

*Based on RMS value.

Options

Options available include FCC-Directionalization, Pattern Measurement Service, Patter Optimization, beam tilt, null fill, and special mounting brackets.

Non-ionizing Radiation

Since many factors contribute to a station's compliance with the FCC exposure guidelines for radio frequency radiation, JAMPRO ANTENNAS, INC. cannot accept any responsibility in this matter. The station must examine and determine its status based on each individual situation.

All specifications subject to change.