Forum Discussion
wa8yxm
Feb 21, 2021Explorer III
Re Cable...TV/Internet
You can easily send power from the HEAD (the equivalent of a phone company Central office) to the line amps via the same cable that carries the signal. What I don't know however is how far you can send it.
IN FACT most RVers do precisely that. You talk about the OTA antenna Pre-Amp and refer to the wall plate with the switch as the Pre-Amp but guess what. That's not the pre-amp... The Pre-amp is up in the antenna head.
That is just the power supply.
So where is the power cables from the supply to the roof.. The coax carries power from the switch UP to the head and signal from the HEAD back to the switch
Cable companies can use the same technology but there is a limit to the length of the run or the number of amps that can get power that way run.
You can easily send power from the HEAD (the equivalent of a phone company Central office) to the line amps via the same cable that carries the signal. What I don't know however is how far you can send it.
IN FACT most RVers do precisely that. You talk about the OTA antenna Pre-Amp and refer to the wall plate with the switch as the Pre-Amp but guess what. That's not the pre-amp... The Pre-amp is up in the antenna head.
That is just the power supply.
So where is the power cables from the supply to the roof.. The coax carries power from the switch UP to the head and signal from the HEAD back to the switch
Cable companies can use the same technology but there is a limit to the length of the run or the number of amps that can get power that way run.
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