Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
Trending News
A question about RF pulsed carrier gated switching ...?
If a transmitter is operating at a RF carrier frequency of 7 MHz and is gate pulsed (turn On and Off) at the clock rate of say 1 GHz, what frequency would the RF output carrier be considered, 7 MHz or 1 GHz?
7 MHz RF carrier turned on and off at a clock rate of 1 GHz. Is the output RF carrier considered still 7 MHz or would it be 1 GHz?
Is that scenario even possible?
Best regards
At the RF output of the above system, would I use a 42 meter (7 MHz) long wave antenna or should it be a (1 GHz) microwave dish?
2 Answers
- billrussell42Lv 79 years agoFavorite Answer
Certainly possible. You would have a 7 MHz sine wave chopped into segments. 7 MHz is a period of 143 nS. 1 GHz is a period of 1 nS, so the sine wave would be chopped into 143 tiny segments.
Basically it's a 1 GHz carrier modulated by 7 MHz.
- ?Lv 79 years ago
Seems you did not know much about transmitter circuit. Carrier frequency is always much higher than the modulation frequency. 1GHz is never able to modulate 0.007GHz carrier. Therefore, the answer is IMPOSSIBLE.
