rf_engineer
join:2003-08-04
USA
| reply to TK Junk Mail
Re: Disappointing
said by TK Junk Mail  :said by RadioDoc :Read the article: 30-50 MHz I saw that wise guy. What I was asking was what services are affected? And that isn't in the article. Lower VHF TV channels, business two way radio, and in some areas low band VHF public safety. I say "in some areas" as a lot of public safety is now in high band VHF ( ~150 Mhz) and the 800/900 Mhz spectrum. You'll see low band used in more rural areas or in areas with less money or incentives (like frequency congestion) to move public safety to other bands.
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sbrook
Premium,Mod
join:2001-12-14
H0H 0H0 | The thing is that it doesn't MATTER what's in the 30-50 MHz spectrum. BPL will create a lot of "splatter", everytime it hits a transformer, ever cable joint etc.
It's a ridiculous technology. |
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rf_engineer
join:2003-08-04
USA
| said by sbrook :The thing is that it doesn't MATTER what's in the 30-50 MHz spectrum. BPL will create a lot of "splatter", everytime it hits a transformer, ever cable joint etc. It's a ridiculous technology. I won't disagree that it's ridiculous technology, however I'd rather have this in 30 - 50 Mhz than plunked on the spectrum below 30 Mhz. Much of the communications in 30 to 50 Mhz is FM and local communications, often using repeaters and/or used in vehicles with electrically noisy engines to begin with. Receive signal levels are in general higher that what you work with on HF (1-30 Mhz). On HF, one often receives signals just above the noise floor, something most BPL proponents just don't understand. |
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