Does it work as a High Pass Filter ?

I haven't torn one apart, but I suspect it's a simple finely-tuned a tank circuit that shunts specific frequencies to ground (a simpler method than blocking) which would be considered a notch filter vs. a high or low pass filter. In either case, it works very well for me. I live next to a call tower, and due to our proximity, we couldn't get any more than a few channels. Once the filter was placed between the antenna and our distribution amplifier, we jumped from a handful to over 70 channels now available.

what is the rejection (in dB) and what is the insertion loss (in dB)? All traps/filters must have at least some insertion loss, even if it's .5 dB.

With a 4' antenna cord rejection is .1 to .3 and loss is .5 to .8 depending on connection type.

Does this only work for amplified antennas?

Thank you for your question. It works for both amplified and regular antennas, but if your antenna was purchased in 2020 or later it should have a filter built in already.

does it fix radio fm recept?

No. It is a cell signal filter for a tv antenna. It's only made to improve tv reception more so if you are close to a cell phone tower.

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Philips LTE Filter for TV Antenna, Filters 4G 5G LTE Signal to Reduce Interference and Pixilation for Clear Digital HD TV Reception, Frequency Range 5-608 MHz, Indoor Outdoor Installation, SDW1520/27

Philips LTE Filter for TV Antenna, Filters 4G 5G LTE Signal to Reduce Interference and Pixilation for Clear Digital HD TV Reception, Frequency Range 5-608 MHz, Indoor Outdoor Installation, SDW1520/27

Product ID: 386603609

Details

Antenna
Television
Brand
PHILIPS
Colour
Silver
Impedance
140 Ohms
Number of channels
100

⚡No power supply needed

📶Blocks 4G/5G LTE interference

🌦️Weatherproof for indoor/outdoor use

Description

📡 Cut the noise, catch every pixel—your HD upgrade awaits!

PLUG PLAY SIMPLICITY - Easy in-line installation with standard F-type coax connectors—no extra hardware or power required.
UNIVERSAL COMPATIBILITY - Works seamlessly with any TV, amplified antenna, coax cable, or splitter—perfect for urban and suburban setups.
CRYSTAL CLEAR HD RECEPTION - TruAmp Technology filters out disruptive 4G/5G signals for uninterrupted viewing.
TRUSTED SUPPORT WARRANTY - Backed by U.S.-based tech support and a limited-lifetime replacement pledge for peace of mind.
BUILT TO BRAVE THE ELEMENTS - Durable, weatherproof design ensures reliable performance indoors or outdoors.

The Philips LTE Filter SDW1520/27 enhances your TV antenna’s performance by blocking disruptive 4G/5G LTE signals within a 5-608 MHz frequency range. Designed for easy, no-fuss installation with F-type coax connectors, it requires no external power and is weatherproof for both indoor and outdoor use. Ideal for metropolitan and suburban areas crowded with cell towers, this filter ensures crisp, clear digital HD reception across up to 100 channels and a 400-foot range, supported by U.S.-based technical assistance and a limited-lifetime replacement guarantee.

Specifications

ASIN	B08HVT59F5
Antenna	Television
AntennaDescription	Television
Brand	PHILIPS
Color	Silver
Colour	Silver
Customer Reviews	3.9 out of 5 stars 5,948 Reviews
Global Trade Identification Number	00030878531955
Impedance	140 Ohms
Item Type Name	Philips LTE Filter for TV Antenna, Filters 4G 5G LTE Signal to Reduce Interference and Pixilation for Clear Digital HD TV Reception, Frequency Range 5-608 MHz, Indoor Outdoor Installation, SDW1520/27
Manufacturer	Philips
Maximum Range	400 Feet
Maximum range	400 Feet
Mfr Part Number	SDW1520/27
Model Number	SDW1520/27
Number of Channels	100
Number of Items	1
Number of Packs	1
Number of channels	100
UPC	030878531955
Unit Count	1.0 Count

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