T&L Publications

Hi all.
A TV antenna on the roof has a built-in preamplifier. Am looking for a power injector that will send 12V to the antenna and will separate the RF signal to feed the TV RF input.
Do you have one behind the spider webs for sale ?
Should have three ports;
- Power in - connects to 12V supply
- Power out and RF in - connects to antenna coaxial
- RF out - connects to TV

What you need is one of these....

Just make sure it is the right polarity for your preamplifier.


Signed Janitor Tzap

Thanks, Tzap.
That is the power supply + injector.

The injector only is like

I don't see why the Channel Master Power Supply wouldn't work.

The RF-Connectors are different from the Kingray Power Injector's.
So, you would need to replace those connectors on the cables to RG-6U connectors.

But if you need the Power Injector to be like the Kingray Power Injector.
That is going to be a problem.
All the Power Injector units of that style that I am finding, are 18Vdc to 24Vdc.


Signed: Janitor Tzap

Hi Tzap. Thank you.
The booster takes 6VDC. I have its correct adapter
Decided to make my own; and added a USB male power cable to power it with the USB jack in the TV. Worked too on 5V. If can work better, I do not know, but will live with it.

The second schematic here ----> https://www.simplecircuitdiagram.com/12 ... a-booster/

WHAAAAAAT?!

How did this go from a 12Vdc powered pre-amplifier to a 6Vdc signal booster?!

As for the USB Power Jack on the Television.........
Check what the amperage is.
Televisions made in the past 5 years have a 1 to 2 Amp maximum current rating on the USB Power Jack.
Most older Televisions with the USB Power Jack, were only rated for 500ma to 750ma maximum current.
This became a problem for people with ROKU, AMAZON FireTV, and other plug-in HDMI dongles that used the USB Power Jack for power.
Because the Streaming HDMI dongles needed at least 1 Amp of current to operate properly.
So, many of these streaming units came with an external power supply.



Signed: Janitor Tzap

Well, whatever used to be a standard, now his booster uses 6VDC. Ask the chinese, I did not do it...
Seems the USB jack current is capable to please the antenna booster. I will not complain.

Specs here show 6V/100mA ----> https://www.ebay.com/itm/192285092531?c ... gKtwvD_BwE