- Offered in a 1/4, 3/8 or 1/2 wave spacing version
- The 871A-70 has external cabling and a field-adjustable pattern.
- The 871F-70 has internal cabling and fixed dipole-mast spacing.
- Heavy-duty and black anodized versions available
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Adjustable, fixed, side or top mount antenna -
Dual, Triple, and Quad Feed Exposed Dipole Array The (2)871F-70, (3)871F-70, and (4)871F-70 are wide band multiple antennas designed for multicoupled systems. The antenna offers a choice of radiation patterns that are determined by the dipole-to-mast spacing. • These antennas have internal cabling and are not field adjustable. • Each antenna is offered in a 1/4, 3/8, or 1/2 wave pattern spacing versions. • Typical antenna to antenna isolation is 30dB, versions with 40 dB of isolation are also available. • Heavy duty versions are available. Please contact Comprod Inc. Technical support technician for consultation. DOWNLOAD PDF DOWNLOAD DIGITAL PATTERNS
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The 872/872F-70-2TM antenna is a wide band dual band antenna designed for multicoupled systems. The antenna covers the 138-174 MHz and 215-225 MHz band, and offers a choice of radiation patterns that are determined by the dipole-to-mast spacing. This antenna is very rugged. It has an internal cabling; it is not field adjustable. The 872/872F-70-2TM antenna is well suited for use in severe environmental conditions. The antenna is offered in a ¼, ⅜ or ½ wave pattern spacing versions. DOWNLOAD PDF DOWNLOAD DIGITAL PATTERNS FOR VHF band DOWNLOAD DIGITAL PATTERNS FOR 215-225 MHz
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Adjustable, fixed, side or top mount antenna
- Offered in a 1/4, 3/8 or 1/2 wave spacing version
- The 872A-70 has external cabling and a field-adjustable pattern.
- The 872F-70 has internal cabling and fixed dipole-mast spacing.
- Heavy-duty and black anodized versions available
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Adjustable, fixed, side or top mount antenna
- Offered in a 1/4, 3/8 or 1/2 wave spacing version
- The 874A-70 has external cabling and a field-adjustable pattern.
- The 874F-70 has internal cabling and fixed dipole-mast spacing.
- Heavy-duty and black anodized versions available
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Very large bandwidth which make it ideal for emergency use or resale
- Rugged design to withstand the most extreme environmental conditions
- The mounting hardware supplied will permit 0.75” to 2.3/8” O.D. pipe installation.
- DC ground for lightning protection
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Omnidirectional antenna for wide frequency band applications. Ideal for mounting on buildings
- Available in VHF configuration (3 frequency splits)
- Rugged design to withstand the most extreme environmental conditions.
- The mounting hardware supplied will permit 0.75” to 2.38” O.D. pipe installation.
- DC ground for lightning protection
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Omnidirectional antenna for wide frequency band applications. Ideal for mounting on buildings
- Available in VHF configuration (2 frequency splits)
- Rugged design to withstand the most extreme environmental conditions.
- The mounting hardware supplied will permit 0.75” to 2.38” O.D. pipe installation.
- DC ground for lightning protection
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- 3.0 dBd gain achieved by featuring a 5/8-wave whip with a base loaded matching coil
- Manufactured using the best corrosion-resistant materials and finishes available
- Triple-plated chrome brass with a large insert molded low-loss coil form and spring-loaded, gold-plated contact
- O-ring seals and overlap construction to ensure a moisture-proof installation
- Standard Motorola NMO type mount
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No ground plane antenna
- 2.0 dBd of gain over its operating bandwidth
- Manufactured using the best corrosion-resistant materials and finishes available
- Triple-plated chrome brass with a large insert molded low-loss coil form and spring-loaded, gold-plated contact
- Rubber boot ensures a moisture-proof installation
- Standard Motorola C, M type mount
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Broadband 1/2-wave antenna - no ground plane needed
- Manufactured using the best corrosion-resistant materials and finishes available
- Triple-plated chrome brass with a large insert, molded low-loss coil form and spring-loaded gold-plated contact
- Rubber boot to ensure a moisture-proof installation/avoid scratching or rusting of the vehicle
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Designed for external Public Safety Radio Frequencies to propagate within buildings, tunnels or public use environments
- Offered with Fire Retardant 6200 Kydex or ABS radomes
- Meet the recommended fire safety practices of both the Federal Transit Administration (FTA) and the Federal Rail Administration (FRA) for smoke emission and flammability as tested under ASTM E-662 and ASTM E-162
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Designed to minimize interference from adjacent channels and outside systems
- Available in single, dual or triple units
- Temperature compensated to ensure frequency stability
- High attenuation
- Adjustable loops: each cavity has a calibration index to reference insertion loss
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- Gain of unity over its operating bandwidth
- Manufactured using the best corrosion-resistant materials and finishes available
- Triple-plated chrome brass with a large insert molded low-loss coil form and spring-loaded, gold-plated contact
- Rubber boot to ensure a moisture-proof installation
- Standard TAD / NMO type mount
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- 2.0 dBd of gain over its operating bandwidth
- Manufactured using the best corrosion-resistant materials and finishes available
- Triple-plated chrome brass with a large insert molded low-loss coil form and spring-loaded, gold-plated contact
- Rubber boot and overlap construction to ensure a moisture-proof installation
- Standard TAD / NMO type mount
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Broadband 1/2-wave antenna - no ground plane needed
- Manufactured using the best corrosion-resistant materials and finishes available
- Triple-plated chrome brass with a large insert, molded low-loss coil form and spring-loaded gold-plated contact
- Rubber boot ensures a moisture-proof installation/avoid scratching or rusting of the vehicle
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Unity gain in a broadband design for extra heavy-duty service
- Manufactured using the best corrosion-resistant materials and finishes available
- Integrated shock spring and a heavy-duty stainless steel whip that is designed to withstand severe shock
- Ultrasonically-welded brass insert and a gold-plated spring-loaded contact
- Provides 24 MHz of bandwidth using VHF frequencies and 100 MHz of bandwidth at UHF frequencies
- Standard Motorola C, M type mount
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Designed to pass a frequency band and reject a narrow band of frequencies
- Can reject frequencies on either the high or low side of the pass frequency
- Temperature compensated to ensure frequency stability
- High attenuation to minimize desense and interference
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Unity gain in a wideband design for heavy-duty service
- Manufactured using the best corrosion-resistant materials and finishes available
- Ultrasonically-welded brass insert and a gold-plated spring-loaded contact
- Shipped with a factory tuned whip cut to size based on the customer specified frequency range between 136 MHz and 960 MHz
- Standard Motorola NMO type mount providing an excellent moisture seal even when the antenna is removed
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Unity gain in a wideband design for heavy-duty service
- Manufactured using the best corrosion-resistant materials and finishes available
- Ultrasonically-welded brass insert and a gold-plated spring-loaded contact
- Shipped with a 19” whip that can be cut by the customer to any frequency between 136 MHz and 960 MHz
- Standard Motorola NMO type mount providing an excellent moisture seal even when the antenna is removed
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Designed for external Public Safety Radio Frequencies to propagate within buildings, tunnels or public use environments
- Designed for mounting on a concrete surface to meet full bandwidth specifications
- Meet the recommended fire safety practices of both the Federal Transit Administration (FTA) and the Federal Rail Administration (FRA) for smoke emission and flammability as tested under ASTM E-662 and ASTM E-162
- Flame resistant and self-extinguishing polycarbonate tubing is used for the radome
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Designed to reject one narrow band of frequencies, while letting all others pass in the operating band
- Can be cascaded or added to one another in order to sharpen the attenuation of the rejection curve
- Temperature compensated to ensure frequency stability
- High attenuation to minimize desense and interference from adjacent systems
- Adjustable loops: each cavity has a calibration index
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- Frequency range of 138-174 MHz
- Unity gain achieved over its operating bandwidth
- Used for vehicles, such as ambulances, where vertical clearance is critical
- This antenna is ideal for a vehicle that enters areas with reduced headroom
- Combined with a matching circuit that is mounted inside the vehicle
- Each antenna assembly is individually calibrated on the roof of a vehicle
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Designed for minimizing interference from adjacent channels and outside systems
- Available in single, dual, triple or additional units
- Temperature compensated to ensure frequency stability
- High attenuation to minimize desense and interference from adjacent systems
- Adjustable loops: each cavity has a calibration index for easy field tuning
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Designed for minimizing interference from adjacent channels and outside systems
- Available in single, dual, triple or additional units
- Temperature compensated to ensure frequency stability
- High attenuation to minimize desense and interference from adjacent systems
- Adjustable loops: each cavity has a calibration index for easy field tuning
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Designed for minimizing interference from adjacent channels and outside systems
- Available in single, dual, triple or additional units
- Temperature compensated to ensure frequency stability
- High attenuation to minimize desense and interference from adjacent systems
- Adjustable loops: each cavity has a calibration index for easy field tuning
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Designed for minimizing interference from adjacent channels and outside systems
- Available in single, dual, triple or additional units
- Temperature compensated to ensure frequency stability
- High attenuation to minimize desense and interference from adjacent systems
- Adjustable loops: each cavity has a calibration index for easy field tuning
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Designed for minimizing interference from adjacent channels and outside systems
- Available in single, dual, triple or additional units
- Temperature compensated to ensure frequency stability
- High attenuation to minimize desense and interference from adjacent systems
- Adjustable loops: each cavity has a calibration index for easy field tuning
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Designed for quick and easy installations
- Designed for the combination of two frequencies requiring extra isolation. Can also be used as efficient pre-selectors
- Available in 4 or 6 cavity configurations
- Temperature compensated to ensure frequency stability
- High attenuation to minimize desense and interference from adjacent systems
- Adjustable loops: each cavity has a calibration index for easy field tuning
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Designed for quick and easy installations
- Designed for the combination of two frequencies requiring extra isolation. Can also be used as efficient pre-selectors
- Available in 4 or 6 cavity configurations
- Temperature compensated to ensure frequency stability
- High attenuation to minimize desense and interference from adjacent systems
- Adjustable loops: each cavity has a calibration index for easy field tuning
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Ideal for compact high performance applications
- Designed for the combination of two frequencies that require extra isolation. Can also be used as efficient pre-selectors
- A six and an eight cavity configuration is also available for a higher level of isolation and selectivity
- Can be retuned in the field
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Ideal for compact high performance applications
- Designed for the combination of two frequencies that require extra isolation. Can also be used as efficient pre-selectors
- An eight cavity configuration is also available for a higher level of isolation and selectivity
- Can be retuned in the field
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Ideal for high power, close frequency separation installations
- Designed for combining two frequencies that require extra isolation. Can also be used as efficient pre-selectors
- Temperature compensated to ensure frequency stability
- High attenuation to minimize desense and interference from adjacent systems
- Adjustable loops
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Ideal for low clearance applications such as those found on trains, public transit vehicles, construction equipment and police vehicles
- Low-profile rugged alternative to a ¼-wave whip mobile antenna
- When mounted on a horizontal surface, maximum radiation is omnidirectional and vertically polarized
- High strength cast aluminum design. Can be coated for additional protection against harsh environmental conditions
- Supplied with an O-ring to ensure a moisture-proof installation
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Ideal for high power, close frequency separation installations
- Designed for combining two frequencies that require extra isolation. Can also be used as efficient pre-selectors
- Temperature compensated to ensure frequency stability
- High attenuation to minimize desense and interference from adjacent systems
- Adjustable loops
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Ideal for low clearance applications such as those found on trains, public transit vehicles, construction equipment and police vehicles
- Low-profile rugged alternative to a ¼-wave whip mobile antenna
- When mounted on a horizontal surface, maximum radiation is omnidirectional and vertically polarized
- Impact-resistant ABS radome
- Supplied with a mounting gasket to ensure a moisture-proof installation
