V1 vs. tint

[richardboy316]

is this picture an accurate depiction of the 'signals' v1 sends out to pick up radar



if so, wouldnt it be harmfull to detection to mount RIGHT under the tint or just as long as the lens isnt covered by any tint you are fine

[Arashi666]

its just a reciever..............it doesnt actively transmit anything........sure it leaks, but it doesnt transmit anything to pick up radar, its just a passive reciever

[richardboy316]

newho would mountint it RIGHT under the tint affect detection

[Arashi666]

newho would mountint it RIGHT under the tint affect detection

well....no

you copuld also have it behind the tint strip and it wouldnt matter too much

[WRC]

its just a reciever..............it doesnt actively transmit anything........sure it leaks, but it doesnt transmit anything to pick up radar, its just a passive reciever

actually it DOES transmit, it has it's own oscillator (LO) just like a radar gun

[richardboy316]

OH SNAP!!

[Switchback]

its just a reciever..............it doesnt actively transmit anything........sure it leaks, but it doesnt transmit anything to pick up radar, its just a passive reciever

actually it DOES transmit, it has it's own oscillator (LO) just like a radar gun

Any transmissions from a radar detector are leakage.



The super heterodyne principle, as used in radio receivers, allows certain obstacles in high-performance radio design to be overcome. Tuned radio frequency (TRF) receivers suffered from poor frequency stability, and poor selectivity, as even filters with a high Q factor have a wide bandwidth at radio frequencies. Regenerative and super-regenerative receivers offer better sensitivity but suffer from stability and selectivity problems.

In radios using the principle, all signal frequencies are converted typically to a constant lower frequency before detection. This constant frequency is called the intermediate frequency, or IF. In typical AM (Medium Wave) home receivers, that frequency is 455 kHz, for FM VHF receivers, it is usually 10.7 MHz.

Heterodyne receivers "beat" or heterodyne a frequency from a local oscillator (within the receiver) with all the incoming signals. The user tunes the radio by adjusting the set's oscillator frequency. In a mixer stage of the receiver, the local oscillator signal multiplies with the incoming signal, producing beat frequencies both above and below the incoming signal. The mixer stage produces outputs at both the sum of the two input frequencies and at the difference. Either the higher or the lower (typically) is chosen as the IF, which is amplified and then demodulated (reduced to just audio frequencies through a speaker).

Almost all receivers in use today utilize this method. In practice not every design will have all these elements, nor does this convey the complexity of other designs, but the essential elements of a local oscillator and a mixer followed by a filter and IF amplifier are common to all superhet circuits. Cost-optimized designs may use one active device for both local oscillator and mixer - this is sometimes called a "converter" stage. One such example is the pentagrid converter.

But in a raddetector, the "stations" are pre-tuned, for the different bands (X, K, KA, and KU in other countries)

there have been, (and currently are) some models that try to use a direct amplification of the signal, but there performance is very poor compared to Superhet. style.

But the direct amplification units are undetcable because they do not generate a local oscillator frequency that is prone to leakage.