0333 123 2100


British Forces Post Office Public Address system


PEL Services designed, supplied and installed a comprehensive Bosch PA system into the BFPO (British Forces Post Office) facility at RAF Northolt.

Download BFPO Case Study
The facilities include a headquarters building and a 7000 square metre sorting hall which is served by the public address system.

Public Address Ambient Noise Sensing


With over four million kilograms of mail per year going through the sorting office at BFPO Northolt, a lot of heavy duty – and noisy – parcel and letter sorting machines are in use, making it potentially difficult to hear speech announcements clearly. PEL overcame this problem through the use of carefully selected and located loudspeakers and sensing microphones that monitor ambient noise levels and automatically adjust the broadcast volume accordingly, ensuring that the PA system can be heard at all times without becoming excessively loud during quiet periods.  The system is used for announcements and radio and background music.


Additional Public Address "Bird Scaring" System

PEL was also called upon to install a further PA system to broadcast the sound of birds of prey to scare other birds away from the area – an important safety consideration with aircraft around.  Using the existing CCTV system, the Bird Scaring System is activated when birds are spotted landing.

Refuge Call System Installation


In addition to the PA systems, PEL also supplied and installed a refuge call system in the sorting office to ensure compliance with the Equality Act 2010 and relevant British Standards.  Refuge Call points were installed by PEL on the first floor at four stairwells within the sorting hall, connected by a monitored, fire resistant link to a control panel.  Disabled persons are able to alert the central station to their predicament by activating the nearest call point, which identifies the activated outstation on the control panel and rings the master telephone.  When the master telephone is answered, normal two way conversation takes place.

PEL was recommended for the BFPO project, having installed a significantly larger PA system at Heathrow Worldwide Distribution Centre – the largest mail sorting office in Europe – two years previously for the Royal Mail.

PEL Services is one of the UK’s most reliable and respected providers of the design, installation, maintenance and servicing of sound solutions, fire safety systems, security and CCTV systems and communication systems, having completed thousands of installations during more than 35 years.

Please contact PEL to find out how we can help your organisation or call on 0333 123 2100.

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