Quote:
Originally Posted by Biggles
Co-sited high power paging transmitters always seemed to find a way into your receivers without having to use extra bandpass filters in line too.
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The sheer screaming brute-force of POCSAG transmitters around 150-155MHz was a bane for anyone who shared a mast with them.
There was another early digital data system I remember from the late-1980s which worked around 164MHz and would happily mess things up. It produced a constant 'growl' like some sort of large engine running. Several of my receivers needed seriously-narrowband copper-and-silver-plate cavity filters [everyone called them 'barrels' because they looked like beer-kegs] to keep this noise out but these were imported from the USA and very expensive!