Back

MARK-IV Digital Narrowband Signal Boosters

With Programmable Filters Bandwidth, Selectivity & Group Delay

Available for 800 & 700 MHz SMR bands, UHF, TETRA and VHF bands

Channelized Signal Booster

Product List


Part 90 Signal Booster. THIS IS A 90.219 CLASS A DEVICE

WARNING. This is NOT a CONSUMER device. It is designed for installation by FCC LICENSEES and QUALIFIED INSTALLERS. You MUST have an FCC LICENSE or express consent of an FCC Licensee to operate this device. You MUST register Class A signal boosters (as defined in 47 CFR 90.219) online at www.fcc.gov/signal-boosters/registration. Unauthorized use may result in significant forfeiture penalties, including penalties in excess of $100,000 for each continuing violation.


Summary

The MARK-IV DIGITAL uplink amplifiers can be specified as truly channelized narrowband filters tuned to transmit only your licensed channels, in compliance with the FCC 90.7 definition for Class-A Signal Booster.

There are no overlap interference effects, since in the uplink path the dominant signal at the base site receiver is always the booster signal (due to higher booster power and directional antenna). In most situations the downlink path can be specified as truly channelized narrowband filters tuned to transmit only your licensed channels. However in certain cases, the downlink path filters can be broader for reduced delays to accommodate the digital modulation signals timing constraints in the overlap coverage areas.

The CTI MARK-IV DIGITAL NARROWBAND SIGNAL BOOSTER, model M4DBDA, integrates two sets of front-end programmable narrowband filters with output high-power broadband amplifiers, to deliver a Bi-Directional Narrowband Signal Booster.

Fiber-fed models are available, with or without the high-power amplifiers stages.

The MARK-IV DIGITAL is a patent pending design for multi-carrier two-way rebroadcast systems, where significantly high dynamic range is required on a channel-per-channel basis, while delivering lower & flatter group delay.

The MARK-IV DIGITAL is a multichannel Digital Narrowband Signal Booster having Automatic Gain Control on a per-filter window basis.

The filter’s bandwidths & selectivity are software-defined and the system personality could be selected by the user in order to achieve very narrow filters windows, such as 100 KHz BW for less than 10 uSec delay per filter, or 12.5 KHz BW with 60 dB rejection at 50 KHz offset for less than 30 uSec delay.

For compliance with the FCC Rule 90.219(d) to transmit uplink over-the-air back to the donor sites, the uplink path filters selectivity can be set as a TRUE Class-A Signal Booster per FCC 90.7 definition, with less than 110 uSec delay.

The programmable filters deliver Flat Group Delay (Linear Phase response) within their passband, a must for today and tomorrow’s digital modulation formats.

Features

  • Class-A Narrowband type per FCC 90.7 definition, compliant with FCC 90.219(d) rule for uplink over-the-air transmission.
  • Up to 16 fully programmable filters per path, Uplink and Downlink
  • Flat group delay ripple (linear phase response), a must to support P25, TETRA, iDEN, OpenSky, ASTRO, EDACS and other digital modulation formats.
  • User-selectable System Personalities
    • 12.5 KHz pass bandwidth per filter, 110 uSec Delay
      • for filtering out individual channels.
      • >60 dB Adjacent Channel Rejection (ACR) at 25 KHz offset.
      • Suitable for both Analog & Digital Modulation, Conventional and Trunked systems.
    • 12.5 KHz pass bandwidth per filter, 30 uSec Delay
      • o for filtering out individual channels with no immediate adjacent channel.
      • >60 dB Rejection at 50 KHz offset.
      • Suitable for both Analog & Digital Modulation, Conventional and Trunked systems.
    • 100 KHz pass bandwidth per filter, 10 uSec Delay
      • for filtering out consecutive channels groups.
      • >60 dB Rejection at 175 KHz offset.
      • Suitable for both Analog & Digital Modulation, Conventional and Trunked systems.
      • Supports very-high speed and dense digital modulation formats with large overlap coverage areas among the open air system and the in-building booster service areas.
  • <-110 dBm input sensitivity per filter-window
  • >120 dB Gain per filter-window
  • Individual Automatic Gain Control (AGC) per filter, ensures effective recuperation of weak signals from far-end or worst case situations users, despite other strong simultaneous signals on-scene.
  • Individual Rx. Threshold level (Squelch) per window, ensures clean output spectrum with no amplified noise if un-active.
  • 20 W output compression point (P1dB) highly linear power amplifiers deliver very low in-band Intermodulation products.
  • Fiber-fed options, with integrated RF/optic very low-noise transceivers and remote control data link.
Models Channelized Signal Booster Channelized Signal Booster

1.

800 MHz band (806-824/851-869), 18 MHz total bandwidth, 45 MHz duplex separation, with the following sub-bands:

 

1.1

800 MHz Public Safety-only NPSPAC (806-809/851-854 MHz), 3 MHz BW. (after re-banding)

 

1.2

800 MHz Public Safety plus non-cellular services (809-816/854-861 MHz), 7 MHz BW. (after re-banding)

 

1.3

800 MHz ESMR and other cellular commercial services-only, (817-824/862-869 MHz), 7 MHz BW. (after re-banding)

 

1.4

Combined NPSPAC, PS and non-cellular (806-816/851-861 MHz), 10 MHz BW. (current and during transition)

2.

Upper 700 MHz Public Safety and Commercial shared network (758-775/788-805 MHz), total of 17 MHz BW, 30 MHz duplex separation, with the following sub-bands:

 

2.1

Narrowband (NB) Public Safety-only (769-775/799-805 MHz), 6 MHz BW.

 

2.2

Broadband (PSBL) + D block, nationwide interoperability network (758-768/788-798 MHz), 10 MHz BW.

3.

700 MHz open commercial C block (746-757/776-787 MHz), 11 MHz BW.

4.

Lower 700 MHz SMR cellular commercial services only (698-746 MHz).

5.

UHF conventional commercial & public safety (450-470 MHz)

 

5.1

5 MHz duplex separation, 1 MHz BW. Example: 462-463/467-468 MHz.

 

5.2

5 MHz duplex separation, extended 3 MHz BW. Example: 460-463/465-468 MHz.

6.

UHF conventional public safety (470-490 MHz)
3 MHz duplex separation, 1 MHz BW. Example: 482-483/485-486 MHz.

7.

UHF public safety exclusive 506-512 MHz range
3 MHz duplex separation, 1 MHz BW. Example: 506-507/509-510 MHz.

8.

Lower UHF (DoD and TETRA), 10 MHz duplex separation:

 

8.1

380-383/390-393 MHz restricted EU Public Safety and NATO, 3 MHz BW

 

8.2

380-385/390-395 MHz extended EU Public Safety and NATO, 5 MHz BW

 

8.3

385-390/395-400 MHz Civil & Commercial, 5 MHz BW

 

8.4

410-430 MHz Commercial PMR, 5 MHz BW, 10 MHz duplex separation (410-420 Mobile Tx, 420-430 Mobile Rx)

 

8.5

TETRAPOL 473-476/483-486 MHz, 3 MHz BW

9.

VHF band
3 MHz duplex separation, 0.5 MHz BW. Example: 156-156.5/159-159.5 MHz

Top

Copyright © 2017 Canam Technology Incorporated. All rights reserved.