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Overlap Blocking Filter Pass 39-52

Product Code: PROOBF1B

  • Overlap blocking filter Ch.39-52
  • Used for blocking unwanted signals
  • F-Type
  • 1 input 1 output
Overlap Blocking Filter Pass 39-52
Overlap Blocking Filter Pass 39-52

Discontinued

This product has been discontinued, please see products below.

Product Description

Overlap Blocking Filter Pass 39-52

A range of UHF band-pass filters from Proception, intended for blocking unwanted reception of transmissions from an adjacent region.

The introduction of high-power digital transmissions has led to problems with some receivers selecting multiplexes from out-of-area transmitters, leaving confused viewers watching the wrong regional services, or even listening to the wrong language!

Although this problem should be solved in the longer term by receiver developments, the use of band-pass filters can provide a quick, simple and cost effective solution, saving installers frequent call-backs.

Other Applications:

The entire range offers excellent cut-off below 470MHz and will help with problems from TETRA, telemetry and 70cm amateur band transmissions. Above channel 62 all versions will help solve GSM mobile phone interference problems, while the A and B models will additionally help suppress the forthcoming LTE (4G) signals.

Features:

  • Optimised pass-bands cover most UK requirements in just four versions.
  • Good out-of band rejection helps block TETRA and GSM, also LTE Guide And FAQ">LTE (4G), depending on model.
  • F type connectors for good screening factor, helping prevent leakage around the filter.
  • Good 75O match throughout the pass-band.
  • DC blocked, no damage if inadvertently line-powered (24VDC max).
  • Optional weatherproof outdoor housing available.
  • Equipotential bonding terminal.

Technical Information:

Product Code
Channels
Freq.Lower Upper1

Insertion

loss2

Stopband

Rejection3

Conn.

PROOBF1A

21 - 30

470 - 550MHz

DC - 438MHz

578 - 1600MHz

<3dB

>30dB

F

PROOBF1B

39 - 52

614 - 726MHz

DC - 578MHz

762 - 1600MHz

<3dB

>30dB

F

PROOBF1C

48 - 62

686 - 806MHz

DC - 650MHz

920 - 1600MHz

<3dB

>27dB

F

PROOBF1E

39 - 62

614 - 806MHz

DC - 562MHz

920 - 1600MHz

<3dB

>27dB

F

PROMHDCASE-S

Case for external installations


1. Specified stop-band rejection is typically maintained to above 2GHz (but is not guaranteed above 1.6GHz).
2. Insertion loss may increase slightly at the pass-band edges, but will not exceed 4dB.
3. Typical stop-band rejection is around 35 to 40dB except close to the band edges.

OBF

Product Description

Overlap Blocking Filter Pass 39-52

A range of UHF band-pass filters from Proception, intended for blocking unwanted reception of transmissions from an adjacent region.

The introduction of high-power digital transmissions has led to problems with some receivers selecting multiplexes from out-of-area transmitters, leaving confused viewers watching the wrong regional services, or even listening to the wrong language!

Although this problem should be solved in the longer term by receiver developments, the use of band-pass filters can provide a quick, simple and cost effective solution, saving installers frequent call-backs.

Other Applications:

The entire range offers excellent cut-off below 470MHz and will help with problems from TETRA, telemetry and 70cm amateur band transmissions. Above channel 62 all versions will help solve GSM mobile phone interference problems, while the A and B models will additionally help suppress the forthcoming LTE (4G) signals.

Features:

  • Optimised pass-bands cover most UK requirements in just four versions.
  • Good out-of band rejection helps block TETRA and GSM, also LTE Guide And FAQ">LTE (4G), depending on model.
  • F type connectors for good screening factor, helping prevent leakage around the filter.
  • Good 75O match throughout the pass-band.
  • DC blocked, no damage if inadvertently line-powered (24VDC max).
  • Optional weatherproof outdoor housing available.
  • Equipotential bonding terminal.

Technical Information:

Product Code
Channels
Freq.Lower Upper1

Insertion

loss2

Stopband

Rejection3

Conn.

PROOBF1A

21 - 30

470 - 550MHz

DC - 438MHz

578 - 1600MHz

<3dB

>30dB

F

PROOBF1B

39 - 52

614 - 726MHz

DC - 578MHz

762 - 1600MHz

<3dB

>30dB

F

PROOBF1C

48 - 62

686 - 806MHz

DC - 650MHz

920 - 1600MHz

<3dB

>27dB

F

PROOBF1E

39 - 62

614 - 806MHz

DC - 562MHz

920 - 1600MHz

<3dB

>27dB

F

PROMHDCASE-S

Case for external installations


1. Specified stop-band rejection is typically maintained to above 2GHz (but is not guaranteed above 1.6GHz).
2. Insertion loss may increase slightly at the pass-band edges, but will not exceed 4dB.
3. Typical stop-band rejection is around 35 to 40dB except close to the band edges.

OBF

Technical Specification

IEC or F Type

F Type

Width

20mm

Depth

48mm

Height

80mm

Weight

0.04Kg

Frequently Asked Questions

An Overlap Blocking Filter (OBF) Pass 39-52 is a specific filtering technique used in signal processing, particularly in digital communications, to attenuate interference and improve signal quality within the frequency range of 39 to 52 Hz.
OBF Pass 39-52 is tailored to address interference and noise within the narrow frequency band of 39 to 52 Hz. Unlike broader filters, which may cover wider frequency ranges, OBF Pass 39-52 focuses specifically on this range to enhance signal clarity.

Fred
19/04/2024

Great service and company to deal with

Robert
15/04/2024

I researched for many TV aerials and my friend who was ex aerial rigger recommended me Blake aerials as you can’t go wrong with them that was his words and it was true


13/04/2024

Ok until Blake sold me an item they didn't have in stock ...

Philip
05/04/2024

Very good service as a company, very let down by sending out parts poorly packaged, must cost a fortune sending replacements out..

Philip
05/04/2024

Seem fine

Google Company Reviews

Keith-keki Young
Keith-keki Young
19/05/2024

Blake UK Ltd I was pleasantly surprised by this Sheffield Company. They're easy to order from,in my case online and email and text communication as I lip read, the item was ready to collect as per the order agreed. Far better service than Amazon for the said item still on back order with Amozon with a delivery date as far away as November 2024. I think it's probably come full circle, and shopping experience might be coming back, and with a company like Blake UK...I'd happily recommend them over and over. Well done ?

Dennis “DIY DEN” Horseman
Dennis “DIY DEN” Horseman
14/05/2024

A REFRESHING CHANGE. Needed more info on an item. Fast response, friendly, informed, clear, offered alternative suggestion.... First experience with "Blake". Couldn't have asked for more. Thanks a lot Blake. I'm buying.

Nigel Henniker
Nigel Henniker
06/05/2024

Best price I could find online and the following service was exceptional. Great communication, fast delivery and was informed of the progress throughout. Highly recommended.

Jamie Donnelly
Jamie Donnelly
06/05/2024

Excellent quality and choice, and great prices. Will definitely use Blakes again.

Melanie Ball
Melanie Ball
02/05/2024

Great customer service! Professional and swift service.

Discontinued

This product has been discontinued, please see products below.

Product Description

Overlap Blocking Filter Pass 39-52

A range of UHF band-pass filters from Proception, intended for blocking unwanted reception of transmissions from an adjacent region.

The introduction of high-power digital transmissions has led to problems with some receivers selecting multiplexes from out-of-area transmitters, leaving confused viewers watching the wrong regional services, or even listening to the wrong language!

Although this problem should be solved in the longer term by receiver developments, the use of band-pass filters can provide a quick, simple and cost effective solution, saving installers frequent call-backs.

Other Applications:

The entire range offers excellent cut-off below 470MHz and will help with problems from TETRA, telemetry and 70cm amateur band transmissions. Above channel 62 all versions will help solve GSM mobile phone interference problems, while the A and B models will additionally help suppress the forthcoming LTE (4G) signals.

Features:

  • Optimised pass-bands cover most UK requirements in just four versions.
  • Good out-of band rejection helps block TETRA and GSM, also LTE Guide And FAQ">LTE (4G), depending on model.
  • F type connectors for good screening factor, helping prevent leakage around the filter.
  • Good 75O match throughout the pass-band.
  • DC blocked, no damage if inadvertently line-powered (24VDC max).
  • Optional weatherproof outdoor housing available.
  • Equipotential bonding terminal.

Technical Information:

Product Code
Channels
Freq.Lower Upper1

Insertion

loss2

Stopband

Rejection3

Conn.

PROOBF1A

21 - 30

470 - 550MHz

DC - 438MHz

578 - 1600MHz

<3dB

>30dB

F

PROOBF1B

39 - 52

614 - 726MHz

DC - 578MHz

762 - 1600MHz

<3dB

>30dB

F

PROOBF1C

48 - 62

686 - 806MHz

DC - 650MHz

920 - 1600MHz

<3dB

>27dB

F

PROOBF1E

39 - 62

614 - 806MHz

DC - 562MHz

920 - 1600MHz

<3dB

>27dB

F

PROMHDCASE-S

Case for external installations


1. Specified stop-band rejection is typically maintained to above 2GHz (but is not guaranteed above 1.6GHz).
2. Insertion loss may increase slightly at the pass-band edges, but will not exceed 4dB.
3. Typical stop-band rejection is around 35 to 40dB except close to the band edges.

OBF