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SureCall Wide-Band Diplexer - SC-DPLX-01

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Item Number: 4000
Model: SC-DPLX-01



This is a special-order item that requires additional lead time. Contact us before ordering if you need a more exact ETA.

A pair of diplexers allows you to utilize just one set of antennas and cables with TWO wireless amplifiers to cover both 3G and 4G LTE signals. The diplexers (which must be used in pairs) allow you to use a traditional dual-band amplifier for voice and 3G signal along with a 4G-only amplifer for LTE signal, without having to buy another set of antennas/cables.

This is ideal for users who already own a 3G repeater system and want to add 4G LTE capability (simply add the LTE amplifier, two diplexers, and four 2' cables to connect everything) and also for people who want to put together a new 3G/4G repeater system but don't want to spend thousands on the expensive 3G/4G amplifiers.

One diplexer connects to each side of the two amplifiers to connect the exterior antenna on one side and the interior antenna on the other. Below is a sample setup:

exterior antenna -> cable -> diplexer -> 2 x 2' cable -> amplifiers -> 2 x 2' cable -> diplexer -> cable -> interior antenna

diplexer diagram

click the image to view full-size

This diplexer implements frequency domain multiplexing, or splits high and low frequencies through different transmission channels and back into one common port.

  • Splits cellular frequencies
  • LTE ready
  • Low insertion loss
  • High level of rejection prevents interference
  • Compact with small footprint


Electrical Data Low High
Bandwidth 698 ~ 787 MHz 824~ 2200MHz
Insertion Loss 1.5dB  1.5dB
Ripple 1dB Max. 1dB Max.
Return Loss ≤2.0 ≤2.0
Attenuation 22dB Min. 16dB Min
Input Power 5 W Max.
Operating Temperature -40° ∼ 185°   (-40℃∼ +85℃)
In/Out Impedance 50 ohm
Connectors N/Female
Dimensions 3.75" x 2 7/8" x 1"
Weight 0.5 lb

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