RF Probe to Measure RF Voltage with a Body Voltage Meter by Martin Bott. (Needs help translating german to english.)
Article in german is at:
http://www.totalitaer.de/Rftechnik/hftastkopf.htm
Google Translation in english:
I copied and pasted the english translation because it is a poor translation. Could someone please help out with the translation?
"RF probe
In order to measure RF voltage with a voltmeter, this must be rectified. This can be done using the following circuit. At the output of the measuring head (the wiring diagram on the right) the instrument is connected. The alligator clip is to the ground - connect the transmitter and the probe tip, the corresponding points are sampled (). The probe facilitates tuning of transmitters and the adaptation of antennas.
The circuit is built into a housing to the ground - is connected (). The red and the black wire are connected to the measuring device and the short blue wire is the measuring tip. In order to obtain precise voltage values must match the RF probe with the potentiometer (variable resistor) P6. These include one of a high-frequency source of known output voltage and adjusts the potentiometer until the meter shows the value of the RF voltage used properly. You can also use any RF voltage if you have a second calibrated Hochfrequenzmeßgerät available. It adjusts the potentiometer until both gauges show the same value. But even without the right balance this Hochfrequenzmeßkopf a useful tool because it allows accurate comparison measurements at various points of a circuit along an antenna or a Lecher.
In order to charge a transmitter while measuring the RF probe slightly and thus to change in its properties should the entrance of Hochfrequenztastkopfes smallest possible capacitance (capacitor trimmer) are interposed.
Such Demodulatortastköpfe you can also buy."
Please see article for diagram and photograph.
Posted Sep 7, 2015, 4:39 AM UTC