[TowerTalk] Low Pass Filters: Are They Of Any Use Today ?

K8RI K8RI-on-TowerTalk at tm.net
Mon Apr 16 23:06:42 PDT 2012


On 4/16/2012 3:20 PM, Richard Solomon wrote:
> Given that the vast majority of TV's are on Satellite or Cable, is their
> anything to gain by sticking a Low Pass Filter in the Transmission Line ?

There are still a lot of OTA TVs out there.  For the lucky many areas 
don't have stations left in LOW VHF.   In Central Michigan we do and are 
in the fringe areas for a number of low VHF stations. At the other end  
2-meters can do a real job on channel 12 if there is an antenna close to 
you.  The only TVI I ever had was 2-meters getting into a neighbors set. 
I gave him a good directional TV antenna and that was the end of the 
problem.

73

Roger (K8RI)

>
> Back in the day, they were virtually mandatory, given the OTA TV and
> the generous amount of extraneous "stuff" emitted by some Transmitters,
> but in todays environment, are they really necessary ?
>
> Any thoughts on the subject ?
>
> 73, Dick, W1KSZ
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