RD Performance vs. Weather

**KnightHawk** · 07-02-2009, 06:42 PM

What does the satelite receiver say? Lost signal. That's just a good example that the signal from the satelite is blocked by the clouds or heavy moisture. This is also seen when you operate radar in rainy weather. Transmission is blocked and deflected resulting to poor radar performance. The satelite dish is just a receiver like a radar detector. When a dish cannot capture a signal, it cannot broadcast a signal. Receivers depend on transmitted signals and not the other way around. A radar detectors performance is dependent upon it's sensitivity not by weather conditions or factors. Transmitted signal depends greatly in different weather conditions, terrain and RFI - radio frequency intereference.

**Stealth Stalker** · 07-02-2009, 07:13 PM

Agreed. That's why I said that it was not "exactly" the same thing. But the principle of RF attenuation by atmospheric conditions is similar, and would factor in to some degree.

**KnightHawk** · 07-02-2009, 08:24 PM

Another example here. You test 2 radar detectors, a V1 and a cobra against radar in the same weather condition. Which will perform better? The V1 or the cobra? Does the weather have to do anything with the ability of the V1 or the cobra to detect the signal? Or is it the V1's sensitivity that outperforms the cobra?

**FoolishOne** · 07-02-2009, 09:00 PM

Originally Posted by Clay_in_Nashville

You should probably ask James Spann down there what he thinks ( I know he's the popular weather guy in B-Ham).

Why are those people still on the beach?

**partsfreak** · 07-02-2009, 09:04 PM

A long while back I posted an observation that is similar to the OP.
I notices that my sensitivity was better in th morning when it was cooler and dropped of a litle later during the day once it got hot.
The average morning temps were in the mid 50s and it heated up into the high 70s to mid 80s in the after noon.
I noticed about 1/4 to 1/2 block difference in alerts. Not a big diff but noticeable.