SOONTAI - CATV Window Filter (CE Approved / High Q Series)

Soontai - a worldwide well-known manufacturer of catv filter solutions;
- a trusted partner, provide the better choice for you.

Products

	- by Function -

	Adapters Amplifiers Attenuators Band Attenuators Cable Assemblies Calibration Kits Connectors DC Blocks Diplexers, Triplexers Equalizers Band Equalizers > Filters Impedance Converters Isolators Power Inserters Splitters, Taps Surge Protectors Switches Terminators Torque Wrenches SOONTAI TECH CO., LTD. Registered to ISO 9001 Certificate TW12/11128

Window Filter

Features

* 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

Introduction

The window filter contains one band-pass and one low-pass and / or one high-pass.

A common application is to pass the return path signals and one band of the forward path signals. Or to filter out the return path signal/ low frequency channels and pass a band of forward path and a higher forward path signal/ channels. Please refer to the graph below.

The circuit architecture of this double-passband filter was invented by Soontai.

It can be used to filter out signals/channels in two bands that are unwanted in a CATV receiving system, and can also be applied to other communication systems.

Soontai's window filters provide many features (see below).

1. Wide and deep reject band, provides excellent rejection capabilities to clear undesired signal,
rejection better than 50dB.

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 radio frequency interference (RFI) / electromagnetic interference (EMI) protection.

We can design other models according to your specifications.

For more filter products, please see our filter category.

To learn more filter types please see the filter profile technical notes in our Tech Support.

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

**Items**
Model	1st Pass Band	2nd Pass Band	1st Stop Band	2nd Stop Band
WF-5-42/103-121	5 - 42 MHz	103 - 121 MHz	50 - 92 MHz	136 - 1000 MHz
WF-5-42/216-260	5 - 42 MHz	216 - 260 MHz	55 - 190 MHz	290 - 1000 MHz
WF-5-65/220-260	5 - 65 MHz	220 - 260 MHz	85 - 195 MHz	290 - 1000 MHz
WF-85-280/750-1000	85 - 280 MHz	750 - 1000 MHz	5 - 65 MHz	310 - 700 MHz
WF-150-220/680-1000	150 - 220 MHz	680 - 1000 MHz	5 - 125 MHz	250 - 640 MHz

**Electrical Curve** ( WF-5-42/103-121 )
Insertion Loss and Rejection SPAN 200MHz Fig 1	Insertion Loss \| Return Loss SPAN 200MHz Fig 2

**General Specifications**
Item	WF - 5-42/103-121
Impedance	75 ohm
Frequency Range	5 - 1000MHz
1st Pass Band	5 - 42 MHz
2nd Pass Band	103 - 121 MHz
1st Reject Band	50 - 92 MHz
2nd Reject Band	136 - 1000 MHz
Insertion Loss (5-42MHz)	0.5dB (typ) / 2.0dB (max)
Insertion Loss (103-121MHz)	2.0dB (typ) / 3.0dB (max)
Return Loss (5-42MHz / 103-121MHz)	20dB (typ) / 14dB (min)
Rejection (50-92MHz / 136-1000MHz)	55dB (typ) / 50dB (min)
Dimensions (incl. M/F connectors)	21(¢) x 73(L) mm
Net Weight	52g

* Specifications may be change depending on the model or customer's requirement.