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To calculate the intermediate frequency (IF) for a radio receiver at 70 MHz, you typically choose a fixed IF value such as 455 kHz or 10.7 MHz. The IF frequency is chosen in such a way that when the desired signal frequency (70 MHz) is mixed with the local oscillator signal, it falls within the receiver's bandwidth for demodulation. This allows for effective filtering and processing of the signal at a manageable frequency before demodulation.
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What is the velocity factor for rg58u coaxial cable?
The velocity factor for RG58U coaxial cable is typically around 0.66 to 0.70, which means that signals propagate through the cable at approximately 66% to 70% of the speed of light in a vacuum. This factor is important for determining signal propagation delay and matching impedance in RF systems.
What is the number of vibrations that occur in one second?
That depends on what kind of a system the local oscillator is part of. In a simple AM receiver, it's typically 455 KHz above the frequency of the incoming signal of interest. In a consumer FM radio, that figure is 10.7 MHz above. In a 'legacy' analog microwave receiver, it's almost always spaced 70 MHz from the received carrier, and since the ubiquitous advent of split-mount digital microwave equipment, with the RF system clamped to the antenna, there's no telling any more ... you always have to look in the book (if that information is even included in the book).
How do you Calculate the acceleration of a 70-kg mass on a swing if you push it with a 40-N force?
You can calculate the acceleration of the swing's mass by dividing the force applied to the swing (40 N) by the mass of the swing (70 kg). This would result in an acceleration of 0.57 m/s^2.
Expected frequency for a person having tongue rolling ability and attached earlobe?
The expected frequency would be determined by calculating the probability of someone having both traits based on their individual frequencies in the population. This would involve multiplying the frequency of tongue rolling ability by the frequency of attached earlobes in the population. For example, if 70% of the population can tongue roll and 60% have attached earlobes, the expected frequency would be 0.70 x 0.60 = 0.42, or 42%.
Calculate the acceleration of a 70-kg mass on a swing if you push it with a 40-N force.?
To calculate the acceleration, you can use the formula F = ma, where F is the force applied, m is the mass, and a is the acceleration. Rearranging the formula to solve for acceleration gives a = F/m. Plugging in the values, a = 40 N / 70 kg = 0.57 m/s^2.
What is the components of intermediate frequency amplifier?
Commonly used intermediate frequencies110 kHz was used in Long wavebroadcast receivers. [1]Analoguetelevision receivers using system M: 41.25 MHz (audio) and 45.75 MHz (video). Note, the channel is flipped over in the conversion process in anintercarriersystem, so the audio IF frequency is lower than the video IF frequency. Also, there is no audio local oscillator, the injected video carrier serves that purpose.Analoguetelevision receivers using system B and similar systems: 33.4 MHz. for aural and 38.9 MHz. for visual signal. (The discussion about the frequency conversion is the same as in system M)FM radioreceivers: 262 kHz, 455 kHz, 1.6 MHz, 5.5 MHz, 10.7 MHz, 10.8 MHz, 11.2 MHz, 11.7 MHz, 11.8 MHz, 21.4 MHz, 75 MHz and 98 MHz. In double-conversion superheterodyne receivers, a first intermediate frequency of 10.7 MHz is often used, followed by a second intermediate frequency of 470 kHz. There are triple conversion designs used in police scanner receivers, high-end communications receivers, and many point-to-point microwave systems.AM radioreceivers: 450 kHz, 455 kHz, 460 kHz, 465 kHz, 470 kHz, 475 kHz, 480 kHzSatellite uplink-downlinkequipment: 70 MHz, 950-1450 Downlink first IFTerrestrial microwaveequipment: 250 MHz, 70 MHz or 75 MHzRadar: 30 MHzRF Test Equipment: 310.7 MHz, 160 MHz, 21.4 MHz
What is 400-470 mhz?
400-470 mhz = -70
What is a police radio scanner by realistic pro-70 hand-held worth?
I'm seeing it up on online auction sites for about $25. It is an old model with limited frequency range (max. 512 MHz).
What McDonald's meal has the most energy?
Did you know that every single entity in the world vibrates at its own unique frequency?raise-vibration.jpg Simply put, your vibration is the amount of electrical energy that your body puts out and needs throughout the day. For example, science has documented that every plant, food, animal, person, organ, cell, thought, color, etc., has its own vibration, which can be measured in megahertz (MHz). The body's main organs (heart, brain, lungs, etc.) should vibrate at about 70 MHz, when it is healthy. Chocolate cake only provides 1-3 MHz of energy. Those tasty Big Macs and Quarter Pounders give a whopping -5 to 3 MHz - pretty sad for a "complete meal". Those Happy Meals aren't so happy! There are…"high vibration" foods, which can add high amounts of energy to our own. For example, raw almonds have 40-50 MHz; green vegetables have 70-90 MHz; and wheat grass has 70-90 MHz. For you hopeless romantics, the scent that roses give off actually has a vibration of 300-350 MHz (that's why girls love them so much).
What is the velocity factor for rg58u coaxial cable?
The velocity factor for RG58U coaxial cable is typically around 0.66 to 0.70, which means that signals propagate through the cable at approximately 66% to 70% of the speed of light in a vacuum. This factor is important for determining signal propagation delay and matching impedance in RF systems.
What is the frequency of the local oscillator?
That depends on what kind of a system the local oscillator is part of. In a simple AM receiver, it's typically 455 KHz above the frequency of the incoming signal of interest. In a consumer FM radio, that figure is 10.7 MHz above. In a 'legacy' analog microwave receiver, it's almost always spaced 70 MHz from the received carrier, and since the ubiquitous advent of split-mount digital microwave equipment, with the RF system clamped to the antenna, there's no telling any more ... you always have to look in the book (if that information is even included in the book).
Calculate 70 percent of 48?
70% of 48 is 33.6 (thirty-three and six tenths.)
What is the average frequency of intercourse for male aged 65-70?
Twice a week.
Why is that the 70 percent of 50 is 35?
The 70 percent of 50 is 35 because to calculate a percetage you multiply the number that you want to calculate the percentage from by the percentage number divided by 100 for this example it will be 50*(70/100) = 35
How do you calculate double time?
divide your growth rate by 70
What is the difference between uhf and vhf?
For the benefit of a beginner , the typical VHF communications band is considered around 100 to 170 MHz (2 meters is 144-148 MHz and 220 is 219-225 MHz), UHF around 400 to 500 MHz (70 cm is 420-450 MHz, 33 cm is 902-928 MHz, 23 cm is 1240-1300MHz, also ham bands at 2300-2310 MHz and 2390-2450 MHz).FM radio would be VHF (88 - 108 MHz esp. in USA, 76-108 MHz in some other parts of world (e.g. Japan))Cellular phones operate between 820- 920 MHz (approx) and 1805-1990 MHz with more spectrum added from time to time .When you get into 3 GHz (gigahertz or 3000 mhz) you are into microwave or RADAR frequencies .Another spectrum is called HF (High Frequency) , from 3-30 MHz. It was called HF because in the 1930's it was as high as they could go , but the label is still used in the Amateur Radio lexicon.From a US. Dept. of Commerce poster:VLF (Very Low Freq.) = 0 - 30kHz (audio)LF (Low Freq.) = 30 - 300 kHz (eg, Loran)MF (Medium Freq.) = 300kHz - 3MHz (eg, AM broadcast)HF (High Freq.) = 3MHz - 30MHz ("short wave")VHF (Very High Freq.) = 30MHz -300MHz (eg, FM broadcast, analog TV (VHF), civil aviation, analog public service)UHF (Ultra High Freq.) = 300MHz - 3GHz (eg, analog TV (UHF), analog cellphones)SHF (Super High Freq.) = 3GHz - 30GHz
How can you calculate the cost price if 70 percent of selling price?
selling price 2783.40. 70% at cost price the answer is 2141.08
