![]() ![]() (Fortunately, after testing against it I can verify that current-model radar detectorsīut the rules of engagement remain unchanged. Get too vexed, please note that only one MPH model, the Ranger EZ, has ranging capability. Introduced by MPH, provides range for both the strongest and fastest targets, helping the officer to sort them out. The latest technology, ranging radar, also Radar is dumb in the presence of multiple targets, it can't tell the operator which one it's reading. The XMT/HOLD switch controls transmit and Moving radars like this Stalker Dual SL work on the move (moving mode) or in stationary mode. And the reason has little to do with any fervent desire to outwit The use of RF Hold is not universal among law enforcement, but it's close. Even older radar models with analog signal processing can generally display a target speed within 0.250 to 0.500 second under favorable.Generated a target speed the instant the remote control XMT button was pressed. These models I observed that under optimal conditions - stationary-mode operation, target range under 2,000 feet - all of the radar units Any modern radar with RF Hold capability can transmit and read a target speed in less than about 0.100 second, a conservative estimate and almost as fast as first-generation POP mode.This extra step slows the process, increasing the signal's duration to Must press the XMT button a second time, to quell the transmitter. POP mode signal bursts are shorter than those from RF Hold because one button-tap performs the sequence.The only difference is that the radar transmits every time for the same duration, either 0.16 or 0.67 second,ĭepending upon the radar model. POP mode is merely an automated method of using RF Hold the operator still must activate the radar by pressing the XMT (transmit)īutton to check a speed.It's also been ubiquitous on hand-held radar guns for the past Every frontline moving radar unit sold since 1994 has the RF Hold feature.Without this feature, even analog, non-DSP radar detectors were more than a match for police radar in 1979. When placed on RF Hold, the radar isn't transmitting and Radar was beingĭeployed in unprecedented numbers and more drivers were packing radar detectors. RF Hold was first offered as the Anti-Detector Switch (ADS) in 1979, its function amply described by the name.Here are some facts that may shed some light on this issue: Nor are they familiar with the term QT, although it's fair to assume they would know about that as well, had their products introduced it to the popular lexicon. This newsgroup furor could come as something of a surprise to law enforcement and the folks in the radar industry, at least it might if they were aware of it, which they aren't. Net result: no warning from a radar detector. ![]() QT, or I/O, according to the chatter, is when an officer using non-MPH radar places the radar on standby (called RF Hold in the trade) and not transmitting, and then transmits in similarly short bursts. In POP mode the radar can transmit in a short burst and read a target speed in as little as 0.16 second, in theory, too quick for a radar detector to notice it. This new scourge is even more lethal than POP mode, we are warned.įor non-nerds, POP mode refers to the feature introduced in 2001 by MPH Industries. In breathless posts on that bastion of civilized, rational discourse,, anxious members fret over the proliferation of what they call Quick Trigger or Instant-On (I/O). Rendered a radar detector all but useless. According to some of the armchair experts who frequent Internet forums, the traffic cops have unleashed a new terror weapon that has ![]()
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