IlluminationProject.net Discount Ham Radio Equipment

Heavy-duty Noise-reduction Headset for Mot Talkabout $89.95

Heavy-duty Noise-reduction Headset for Midland GXT $89.95

Heavy-duty Noise-reduction Headset for Motorola GP328 $99.95

Noise Reduction Headset for Yaesu VX-170 VX-177 VX-6R $73.90

Noise Reduction Headset for Yaesu VX-120 VX-7R head set $73.90

Noise-reduction Headset for 289 T4800 80bMT T6320 $112.30

Heavy-duty Noise-reduction Headset for Yaesu VX-7R 6R $89.95

Noise-reduction Headset for F3 HX24 IC-W32A MH446 Icom $99.90

Noise-reduction Headset Moto Visar series E80bV # $115.00

Noise-reduction Headset for GP328 GP-329 GP-340 80bM328 $120.70

Noise-reduction Headset for GP328 Plus EX500 E80bM328+ $120.70

Noise-reduction Headset for HT-1000 HT2000 GP900 E80bHT $131.50

Flightcom E-13 Active Noise Reduction ANR Headset $200.00

Noise-reduction Headset for IC-V8 IC-V82 F22 F31 80BSL $108.50

Noise-reduction Headset for IC-V8 IC-V82 F22 F31 80YSL $108.50

Noise-reduction Headset for FD-450A FD-150A GP-68 80rM $108.50

Noise-reduction Headset for F3 HX24 IC-W32A MH446 E80bS $108.10

Noise-reduction Headset for GP328 GP329 PTX78 80yM328 $108.50

Noise-reduction Headset for GP328 Plus EX500 E80yM328+ $108.50

Noise-reduction Headset for GP328 Plus EX500 E80bM328+ $108.50

Noise-reduction Headset for KG-UVD1P KG-669 E80bK $108.50

Noise-reduction Headset for KG-UVD1P KG-669 E80YK $108.50

Noise-reduction Headset for FD-450A FD-150A GP-68 80yM $108.50

Noise-reduction Headset for FD-450A FD-150A GP-68 80bM $108.50

E80BY7 Noise-reduction Headset for VX-6R VX-7R VX-177 $108.10

Noise-reduction Headset for GP328 GP329 PTX78 80bM328 $108.50

Noise Reduction Headset for PX-777 PX-888 KG-UVD1P $106.00

Noise Reduction Headset for PX-777 PX-888 KG-UVD1P $73.90

Noise Reduction Headset for KG-679 KG-689 LT-2288 V1000 $73.90

Noise Reduction Headset for FDC FD-150A FD-450A FD-460A $73.90

Heavy duty noise reduction Headset KG-UVD1P TG-UV2 $99.60

TimeWave DSP-59+ Audio Noise Reduction Fliter $79.99

E80Y#MT Noise-reduction Headset T5100 T5200 T5400 T5432 $107.00

E80B#MT Noise-reduction Headset for T5512 T5522 T5532 $107.00

E80B#Y7 Noise-reduction Headset for VX-6R VX-7R VX-170 $107.50

E80R#MT Noise-reduction Headset for T5100 T5200 T5400 $107.00

E80Y#K Noise-reduction Headset KG-UVD1 PX-888 PX777 $107.00

E80B#M Noise-reduction Headset for FD-460 GP88 FD-450 $107.00

E80Y#M Noise-reduction Headset FD-450 FD460 GP300 GP88 $107.00

E80B Heavy-duty Noise-reduction Headset (Black) $101.00

E80B#K Noise-reduction Headset for KG-UVD1 PX888 PX777 KG689 TG-UV2 KG669 KG699 $107.00

E80R#K Noise-reduction Headset for KG-UVD1 PX888 PX777 KG689 TG-UV2 KG669 KG699 $107.00

E80B#Y Noise-reduction Headset for VX-3R VX-5R FT-60R $107.00

E80R#M Noise-reduction Headset for FD-450 FD-460 GP88 $107.00

E80R#Y Noise-reduction Headset for VX-3R VX-5R FT-60R $107.00

E80Y#Y Noise-reduction Headset VX-3R VX-5R FT-60R $107.00

E80Y Heavy-duty Noise-reduction Headset (yellow) $101.00

E80Y#Y7 Noise-reduction Headset VX-6R VX-7R VX-170 $107.50

E80R#S Noise-reduction Headset for IC-F3 IC-F4 IC-T7H $107.00

E80R Heavy-duty Noise-reduction Headset (RED) $101.00

E80Y#S Noise-reduction Headset IC-F3 IC-F4 IC-T7H IC-H2 $107.00

Noise-reduction Headset for VX-7R VX-170 VX-6R E80bY7 $116.60

E80R#Y7 Noise-reduction Headset for VX-6R VX-7R VX-170 $92.50

E80B#S Noise-reduction Headset for VX200 IC-T7H IC-H2 $107.00

RADIO NOISE REDUCTION UNIT $85.00

Noise-reduction Headset 4-080Y#K F/KG689 KG679 KG-UVD1 PX777 $107.00

Noise-reduction Headset 4-080R#K F/KG-UVD1 PX777 KG689 TG-UV2 KG699 kg689 KG679 $107.00

Heavy-duty Noise-reduction Headset for Kenwood 2-pin $89.95

Heavy-duty Noise-reduction Mic for Motorola GP328 Plus $99.95

Heavy-duty Noise-reduction Headset for Yaesu/Vertex $89.95

Heavy-duty Noise-reduction Headset for Motorola HT1000 $99.95

Heavy-duty Noise-reduction Headset for Motorola 2-pin $89.95

Heavy-duty Noise-reduction Headset for Icom 2-pin $89.95

NEW UNIDEN SC230 SCANNER, NEW RE-58 ACTIVE NOISE REDUCTION HEADSET & BACKPACK $325.00

USED UNIDEN SC230 SCANNER, NEW RE-58 ACTIVE NOISE REDUCTION HEADSET & BACKPACK $295.00

OLD VINTAGE MOTOROLA NOISE REDUCTION KIT #TLN 6252A NOS $40.00

Heavy-duty Noise-reduction Headset for Kenwood TK380 $99.95

Time Wave DSP-9 audio noise reduction filter $75.00

Noise-reduction Headset FD-150A FD-450A FD-160A 80bM $112.30

~~~~ JPS NIR-10 Noise Reduction Operation Manual $16.95

Noise-reduction Headset PX-888 TH-UVF1 JT-988 KG-816 $99.60

Noise-reduction Headset for JT-208 JT-308 TG-5A E80bJ $112.30

Noise Reduction Headset for FDC FD-150A FD-450A FD-460A $106.00

Noise Reduction Pilot Headset for Motorola GP300 Mic $149.99

Noise-reduction Headset for PX-888 PX-777 KG-UVD1P $112.30

Midland 9001z 40-Channel CB Guardian Alarm NOAA Weather and XR Noise Reduction $99.95

Noise Reduction Headset for KG-669 KG-816 KG-819 TG-UV2 $73.90

Noise-reduction Headset for KG-UVD1P KG-669 TG-UV2 $99.60

Noise Reduction Headset for TG-UV2 FD-268A FD-268B $73.90

Noise Reduction Pilot Headset for Motorola HT1000 Mic $149.99

Noise Reduction Pilot Headset for Motorola HT1250 Mic $149.99

ICOM air guide for V82headset noise reduction sound $10.00

Noise Reduction Headset for PX-777 PX-888 KG-UVD1P FD-880 KG-UV6D FD-268A 268B $99.60

Noise-reduction Headset for KG-UVD1P TG-UV2 E80RK $108.50

Noise Reduction Headset for VX-170 VX-177 VX-6R VX-7R $69.20

Noise Reduction Headset for Motorola GP328 GP338 GP380 $77.20

Noise Reduction Headset for Motorola GP328+ GP338+ Plus $75.20

High Noise Reduction Headset for Motorola Bus. Radios $97.30

Noise-reduction Headset for GP328 GP329 PTX78 GP340 GP360 GP380 HT750 MTX900 $73.90

Noise-reduction Headset for GP328+ GP338+ Plus GP344 GP388 EX500 EX600 PRO5150 $73.90

E80R#S Noise-reduction Headset for IC-F3 IC-F4 IC-T7H $107.00

E80B#S Noise-reduction Headset for IC-F3 IC-F4 IC-T7H $107.00

E80Y#S Noise-reduction Headset IC-F3 IC-F4 IC-T7H IC-H2 $107.00

Noise-reduction Headset for GP-300 FD-150A GP-68 80bM $112.30

Noise-reduction Headset for KG-679 KG-689 KG-669 E80bK $112.30

Heavy duty Noise reduction Headset VX-2R VX-3R VX-351 $69.80

Noise-reduction Headset for GP328 GP329 PTX78 80bM328 $120.70

Noise-reduction Headset for F3 HX24 IC-W32A MH446 E80bS $112.30

Earpiece Noise Reduction GP300 CP200 PR400 CT250 CT150 $45.00

Noise-reduction Headset for FD-450A FD-150A GP-68 80bM $112.30

Digital Noise – What is It? What Causes It? and How Can I Get Rid of It?

Digital noise in photos taken with digital cameras is random pixels scattered all over the photo. It is a similar effect as “grain” in film photography and it degrades the photo quality.

Digital noise usually occurs when you take low light photos (such as night photos or indoor dark scenes) or you use very slow shutter speeds or very high sensitivity modes.

When taking pictures with a digital camera an electronic sensor (also known as a CCD) built from many tiny pixels is used to measure the light for each pixel. The result is a matrix of pixels that represent the photo.

As with any other electronic sensor the CCD is not perfect and includes some noise (also know as white noise to hint on its randomness attribute). In most lighting the light is significantly stronger than the noise. However in extreme scenes where the light is very low or when a high amplification is needed noise levels can become significant and result in pixels in the photos that include more noise data than real photo light data. Those pixels usually appear as random dots or stains on the photo (for example white dots scattered randomly on the photo).

Understanding digital noise in various scenes:

low light (night photos or dark scenes): when the scene is dark the amount of light measured by each pixel of the CCD is low. When the light intensity is very low it can become too close to the level of noise naturally found in the CCD. In such cases some pixels can appear as noise because the noise level measured for them is significantly close or higher than the actual light intensity.

slow shutter speeds: when the shutter is kept open for a long time more noise will be introduced to the photo. A slow shutter speed translates to the CCD integrating more light per pixel. The effect can be easily understood as the CCD “accumulating” light in each pixel and measuring the total light over the shutter period of time. However at the same time the CCD is also “accumulating” noise. For that reason in slow shutter speed photos some pixels will appear as noise because for these pixels the amount of noise integrated is significantly close to or higher than the actual light measured.

high sensitivity modes: high sensitivity in digital photography is implemented by mechanisms that result in amplification. The CCD amplifies the measurements it takes. However there is no way to just amplify the actual photo light that falls on the CCD pixels instead the noise and the actual light are both amplified. The result is that the CCD becomes sensitive not only to light but also to its own noise. When too much amplification is applied some pixels will appear as noise.

While it is impossible to completely prevent digital noise there are a few options that allow you to significantly decrease it. When taking photos in low light scenarios such as night photos there are two main parameters to play with: sensitivity and shutter speed. Raising sensitivity creates more internal noise in the CCD while slowing down the shutter allows for more noise to integrate on the CCD. The amount of noise generated by both parameters is different. It is recommended that you set your camera to manual mode and play with a few different sensitivity/shutter speed pairs to find out the one that generates the least noise.

Some cameras include a built-in feature called “noise reduction”. Noise reduction is implemented by sophisticated software that can identify the noise pixels and remove them. For example the software can identify the noise pixels based on their randomness and usually extreme intensity gap between them and their neighboring pixels. Removing the noise can be implemented by interpolating a replacement pixel value based on its neighboring pixels.

If you do not have a built-in noise reduction feature or it does not work properly you can use a PC based software that removes digital noise. Many photo processing software include a combination of automatic and manual digital noise removal. Some software packages can also use a few photos of the same object to “average” them and thus remove the noise (relying on the fact that digital noise is random and the noise pixels will be different in each photo taken).

To conclude digital noise should be understood by any amateur or professional photographer. However for most photographers digital noise is not a practical problem even in low light scenarios usually digital noise is minimal and can be significantly reduced by simply turning on your camera’s noise reduction feature. For professional photographers who shoot in more extreme conditions digital noise can present a real problem and can be dealt with using a combination of optimizing the camera settings and removing noise with professional software.

About the Author

Ziv Haparnas is a technology veteran and writes about practical technology and science issues. This article can be reprinted and used as long as the resource box including the backlink is included. You can find more information digital photo printing printing and photography in general on printrates.com – a site dedicated to photo printing

South Burlington City Council discusses airport noise
SOUTH BURLINGTON — Jet noise at Burlington International Airport stands a good chance of dampening down in the future — but its South Burlington neighbors on Monday night expressed frustration over the pedestrian pace of improvements.