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for applicate radio frequency Connectors
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RF Test Kit Solutions

  2. PRODUCT
  3. RF Filter
  4. Tier Trap Filters
Tier Trap Filter series 1
Tier Trap Filter series 1
Featurs
Class A RFI Shielding
Support DOCSIS 3.1
Low Loss
High Rejection
Excellent Return Loss
Flat Passband
High Stability
Excellent Mechanical Structure
Precision Connector Thread
Exquisite Plating Quality
Good Weather Resistance
Waterproof (alternative)
Patented Housing
  Item TTF - 118-174
  Impedance 75 ohm
  Frequency Range 5 - 1000MHz
  Insertion Loss (5-102MHz) 0.5dB (typ) / 2.5dB (max)
  Insertion Loss (198-1000MHz) 0.5dB (typ) / 2.5dB (max)
  Return Loss 20dB (typ) / 12dB (min)
  Rejection (118-174MHz) 50dB (min)
  Dimensions (incl. M/F connectors) 21(¢) x 74(L) mm
  Net Weight 52g
 * Specifications may be change depending on the model or customer's requirement.

Tier trap filters have two passbands, one on each side of the reject band. They are used for filtering out some channels in CATV reception systems or for application in other communication systems.

Soontai's tier trap filters have many features (see below).

1. Sharp and deep reject band, provides excellent rejection capabilities to clear undesired signal.

2. Lowest insertion loss, signal-through-loss reduced to a minimum.

3. Excellent return loss, good impedance match reduces signal loss to
    keep the signal clean (see figure).

4. Dual layer brass tubes provide the best electromagnetic interference(EMI) protection.

The table below shows popular TTF series filter models.
We can design other models according to your specifications.

For more filter information please see the filter profile technical notes in our Tech Support.

Custom filters or more details on inquires, please refer to Custom Filters.

Model Stop Band Model Stop Band
TTF - 20-42 20 - 42 MHz TTF - 265-279 265 - 279 MHz
TTF - 88-108 88 - 108 MHz TTF - 374-390 374 - 390 MHz
TTF - 112-126 112 - 126 MHz TTF - 415-481 415 - 481 MHz
TTF - 118-174 118 - 174 MHz TTF - 454-470 454 - 470 MHz
TTF - 195-209 195 - 209 MHz TTF - 526-544 526 - 544 MHz
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