Most helpful positive review
29 of 29 people found the following review helpful
Cordless radar on a budget
on May 27, 2010
I just received the Whistler XTR 440 and I am impressed at what you get for the money. The unit itself is easy to operate, and full of features found in much higher priced detectors. Visual alerts are conveyed by a blue-backlit LCD text display whose backlighting is adjustable to a variety of configurations. For example, it can be set to appear briefly during alerts and mode changes and remain off the rest of the time to save battery power. The Whistler XTR-440 runs on three AA rechargeable Ni-MH (nickel metal-hybride) batteries. The batteries (which are included) must be charged for about six hours before you use the unit the first time, and the only way to charge them is with the power cord that's included. I suggest buying an ac-dc adapter so you can charge the unit from an electrical outlet indoors instead of leaving it plugged into the car(cigarette lighter plug) any time it needs a charge. It has an auto shut-off feature which kills the power after a user-adjustable delay, so you won't come back to the car and find the detector down for the count. I'm not getting a lot of "false" alarms either, so far I'm impressed. The XTR-440 offers two filter modes to limit false alarms. These progressively increase its resistance to common sources of falses, particularly the poorly shielded local oscillators of older Cobra radar detectors, which seem to be everywhere. I run my 440 on Filter 1 default and with X band off, since New Jersey and Ohio are the only states where X-band radar continues to be found in any number and I don't live there, and it makes for a quiet ride. Finally, The only real difference between this unit (XTR-440) and the higher priced XTR-540 (about $125-$150) is the 540's built in digital compass, so if you can live without that, save the money and get the XTR-440.