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    Certificate TW12/11128



AT2 series
1 GHz Attenuator


* Up to 1218 MHz

* Built-in DC Block

* Excellent Return Loss

* Very Flat Attenuation Curve

* Brass Tube Housing

* High RFI Shielding

* Precision Connector Thread

* Excellent Mechanical Structure

* Exquisite Plating Quality

* Good Weather Resistance

* Waterproof

* Suitable for CATV, DOCSIS,
   DVB-T, ATSC, ISDVB-T systems
75 Ohm 1218 MHz Attenuators

The AT2 series is a wideband attenuator with DC block.

Its superior specifications enable it to meet the needs of all attenuation or impedance matching applications in the TV, CATV, DOCSIS,...etc frequency range.

The specification ranges from 5 MHz to 1000 MHz, with an average of 100 mW, a peak of 200 mW, excellent return loss (> 20dB) and good accuracy.

A list of commonly used models is as follows. If there are other attenuation value requests, please contact us, we can also design.

Now, the frequency support to 1218 MHz is also available, please specify when ordering.

Model Attenuation Model Attenuation
AT2 - 103W   3dB AT2 - 105W 5dB
AT2 - 106W   6dB AT2 - 110W 10dB
AT2 - 109W   9dB AT2 - 115W 15dB
AT2 - 112W 12dB AT2 - 120W 20dB
AT2 - 116W 16dB AT2 - 130W 30dB
AT2 - 118W 18dB AT2 - 140W 40dB
  Electrical Curve ( AT2-105 )

Insertion Loss  |  Return Loss
SPAN 1000MHz
Fig 1

Insertion Loss  |  Return Loss
Fig 2
  General Specifications
  Item AT2 - 105W AT2 - 105
  Power Passing NO NO
  Waterproof YES NO
  Impedance 75 Ohm
  Frequency Range 5 - 1000 MHz
  Insertion Loss 5 dB(typ)
  Flatness +/-0.4 dB(max)
  Return Loss 20 dB(typ)
  Power Ratings 100 mW(average)
  DC Withstand DC 100 V(max)
  Dimensions 13(¢) x 40.5 mm
  Net Weight 18 g
 * Specifications may be change depending on the model or customer's requirement.


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