Rf power tv tranmitter

[hcasal]

How can I measure RF POWER OF ANALOG TV transmitter?

Can I use the Linear Technologies LTC 5507? I think I should do on the peaks of the composite video sync

I need for a telemetry project

:bang:

 

[D.A.(Tony)Stewart]

It depends where you intend to use it.
Tx only? ok Rx Antenna not ok.

 

[hcasal]

The transmitter has a RF port. Knowing the RF power equipment , the output DC voltage from detector and by linear regression, I will get a mathematical equation for use with a microcontroller.

 

[D.A.(Tony)Stewart]

OK
Also if Sync tip peak voltage and transmitter power gain function & supply voltage, is another way.
Another way is stripline directional coupler and measure forward and reverse voltage with suitable diode.

 

[vfone]

https://en.wikipedia.org/wiki/Output_power_of_an_analog_TV_transmitter

 

[hcasal]

What do you think about to use the LTC 5507 peak detector, to get a DC voltage proportional to RF power ( dbm). In the past I used the ADL 5902 detector , but not work.

:bsdetector:

 

[Borber]

Power of TV transmitter for PAL system is defined as PEP during the horisontal sync. Average power reading is no good because PEP is constant regardless of picture content.
Chip i no good.