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Soundproof Music Room - Decibel Test #1

Here's a test of the room with a decibel meter. Look for other videos showing other tests! Get more information from www.musicroomplans.info

What is the Best CB Radio Antenna That I Should Buy?

I have been driving a tractor trailer for about 10+ years. I am a member to many CB Radio Forums, also a lot of Truck Driver Forums.

I see and get this question all the time, so I thought I would try and answer it here.

You made it through truck driving school, now you need a CB Radio? OK, first off we need to do some research on CB Radios. DO you want a 10 meter radio? Or do you want a standard 11 meter CB Radio? Well it is going to have to be the latter of the two. Because unless you are a Ham Radio operator licensed through the FCC, then it is illegal to own a 10 meter radio.

CB Radio operators are only allowed to talk on the 11 meter band.

There are 40 channels in the 11 meter band, no CB Channels go below channel 1- 26.965 or above channel 40- 27.405. Anywhere in between you are allowed to operate as long as your CB Radio has not been "worked on", we will get into this later. There are several different kinds of CB Radio's to choose from that are legal in the US.

1. 
   Cobra 25 LTD, 29 LTD, 148 GTL, 19 DX, 25 NW, 25 WXNW, 29 NW, 29 WXNW


2. 
   Texas Ranger 696, 121,966


3. 
   Uniden PRO 538 with weather, 510 XL, PC 68 XL, PC 68 LTW, PC 78 XL, PC 78 LTW, PC 78 Elite


4. 
   Galaxy 949 and the Galaxy 959

These listed here are the basic legal radios allowed to be used in the USA today without having to have a Amature radio license. They are allowed to be used as long as no modifications have been made to them such as a "Peak and Tune" where the power has been turned up on the radio. From the factory these radio's are preset at 4 watts of power, which is legal. Tuned properly they will go up to about 35 watts, but again this is not allowed by the FCC.

But most truckers go to the nearest "cb shop" and pay $50.00 to $100.00 to have a "Connex Board" and a "peak and tune" done to their radios. The "Connex Board" is a echo feature added to the inside of the radio, so as to distort (echo) the voice it also adds a talk back feature so the operator can hear themselves through an external speaker.

Most drivers I know usually buy a decent radio ($150.00) then they buy a cheap antenna to go with it. Well this won't work, your antenna is 95% of your cb outfit. I recommend any Wilson antenna, especially a Wilson 2000 or Wilson 5000. These range in price from $50.00 to $100.00 and that is usually installed. Yes, have it installed by a tech so that they can set your SWR for your antenna. SWR- Standing Wave Ratio this is what makes your radio talk. If you have a SWR of above a 3 or more it will burn your radio up. The tech will use a SWR meter connected to your coax and antenna to check it's SWR reading. If it is to high they will cut some of the antenna whip off 1/8" increments, until a satisfactory SWR is reached. If you do not want to spend a lot on an antenna at least buy one that is tunable.

The coax is another big part of the radios performance. Which would be caught by a good tech when they were installing your "new" antenna. But if you are already using the radio and you notice it drops in performance, it will either usually be the SWR or the coax. Truck stops sell precut lengths of coax, usually you will need a 18' piece to replace what is bad runs about $25.00, I recommend the gray or clear coax. If you are just replacing the coax you can do this yourself, unless you want the SWR checked.

I hope maybe this has shed some light on what to buy.

Be safe out there.

I am 36 years old, and I have been driving trucks for 11 years. I have also worked on farms and been in the construction field for several years as well. I have driven for several different companies, and worked for several different construction companies.
What I write about in the trucking articles is what I have experienced.
Visit me at Truck Drivers and The Industry for more information.
Truck Drivers and The Industry

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My new Rockford Fosgate Punch P2's

Well, it's about time I posted a video on YouTube. This are my brand new Rockford Fosgate 12" Punch P2's You can't hear much of the bass at all in this video, the mic on the camera wont pick it up. I'll put a video up soon with a dB meter to show the bass better. Here is my current setup in my '95 Chevy Blazer: Sony Xplod cd player (can't remember model #) Kenwood amp, 1000W max / 300W RMS (500W @ 2ohm) Model: KAC-8103D 2 RF Punch P2's 12", 2 ohm DVC 500W max / 250W RMS Model: P2D212 The light around the subs is some EL Wire I got off of NeonString.com. It's powered by a sound activated driver. I will be building a ported box to get some louder bass and more lighting options.

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Ice Melt - How Does It Work?

This time of year, many building managers and building service contractors have to deal with the problem of icy sidewalks. To keep sidewalks safe, most building managers use an ice melting compound. There are dozens of ice melting products on the market today, so what's the difference? The active ingredient used in ice melt is usually a combination of one or more of the following ingredients:

Sodium chloride (rock salt). This is the most commonly used product, yet it has limited effectiveness in extreme cold and does not melt ice below 20 degrees. Rock salt does not chemically attack concrete, but it is corrosive to rebar and steel. This product is corrosive and can damage lawns, trees and shrubs.

Calcium chloride. This liquid is converted into pellets by removing the water. It can quickly absorb moisture from the atmosphere so it can work at extremely low temperatures, down to -25 degrees. The cost is generally higher for an ice melt that contains calcium chloride. Calcium chloride can also damage nearby lawns and other vegetation.

Magnesium chloride. This is similar to calcium chloride. It is considered less corrosive, safer for use on concrete and less damaging to plants.

Potassium chloride and urea. These are chemicals commonly found in fertilizer, but that does not mean they are safe around vegetation. At high concentrates these chemicals are harmful to plants. Since urea does not contain chlorides it is less corrosive and safer to use on concrete containing rebar and around steel structures.

Ice melting products may also contain sand or clay additive to help with traction.

How the products work. All deicers basically work the same. Deicers work by attracting moisture to form a liquid brine to generate heat to melt the ice. The product must reach the pavement to become effective. Once on the pavement this "brine" can spread out on the ice and break its bond with the pavement. As the ice is loosened it can be more easily shoveled away.

The rate of melting depends on how fast the specific chemical reacts to the existing moisture. Ice melting products work best if applied before snow or ice accumulates. Spread the ice melt thinly over the surface. In very cold weather it may be helpful to add some water to the product to begin the melting process as it is the chemical solution of the product and water that actually does the work.

Determining product effectiveness. One of the first things to look at is the range of temperatures that a product will work in a reasonable time period, generally 15 to 20 minutes. Calcium chloride works in the coldest temperatures, and magnesium chloride and sodium also rank high in this category.

An ice melter must dissolve into a solution quickly to be effective. Since calcium chloride and magnesium chloride are liquids in their natural states they return to a liquid quickly. Then when these chemicals come in contact with water a reaction is caused that gives off heat to melt ice and snow. Overall, calcium and sodium chloride rank the highest in effectiveness based on speed.

No matter which ice melt you decide to use keep the following tips in mind:

*Don't over apply the chemical; follow the instructions on the label.

*Don't try to melt everything. Before applying ice melt, make sure any snow accumulation has been shoveled or brushed off.

*Wear gloves when applying ice melt. The chemicals in some products can irritate skin.

*Make sure the container is tightly sealed when storing the product. Ice melt products can absorb moisture from the air and harden.

*Don't use ice melt on new concrete that has not fully cured.

*All products will have some impact on the environment. If you suspect plants have been damaged from runoff (look for stunted growth, portions of the plant dying back, browning of foliage), flush the area with plenty of water in the spring.

Steve Hanson is co-founding member of The Janitorial Store (TM), an online community for owners and managers of cleaning companies who want to build a more profitable and successful cleaning business. Sign up for Trash Talk: Tip of the Week at http://www.TheJanitorialStore.com and receive a Free Gift!

Bass Ballin On Audio Control Decible Meter

Testing out the song Bass Ballin on the Audio Control SPL Meter. This meter is pretty legit.

"Silenced" .223 firing Extreme Shock full cycle subsonic ammo

The video is hard to hear due to all the background noise. Stay tuned for better videos. I am using the decibel meter on my phone, but again, all the background noise and people nearby tarnish the readings. This is a Bushmaster AR. The silencer is from Quick Silver Manufacturing (QSM) It is titanium and weighs less than 10 ounces. The first 3 rounds are normal supersonic wolf ammo. The next 3 rounds are extreme shock subsonic. Note that the extreme shock cycles the action properly, even though it is subsonic.

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Concertgoers Scream at the Top of Their Lungs for Skunk Anansie

British rock band, Skunk Anansie, urges would-be Dutch concertgoers to scream their lungs out to win free tickets to their concert. Participants in Amsterdam and Utrecht were able to measure their success through an interactive decibel meter; they also received a movie clip of their public vocal outburst on their SmartPhone that was recorded through the webcam installed in the bus shelter.

How the DP Exercise Bike Stacks Up Against Better Known Brands

The name DP exercise bike might not be as recognizable as other brands like Schwinn, Nautilus and ProForm, but this brand has been around for quite some time and is one of the most respected names in the physical fitness business. Currently, DP is better known for selling exercise bike parts and exercise equipment supplies.

Most DP indoor bikes are old models and are quite difficult to get hold of except in online stores and secondhand retailers. One of the models of DP that became quite popular was the DP Fit for Life Airgometer upright bike. This model costs around $1,000 to $1,200 and carries the basic features of an upright indoor bike.

Another model from the DP fitness brand is the Vita Master MBP2. It features various program settings and tension controls. It also has a heart-rate monitor and features battery operated controls. Aside from the Vita Master and the Airgometer, DP also offers DP Air Advantage, DP AirCisor, DP Prime Fit 6100, DP Sit for Life Aircizer and DP Vitamaster MD193.

DP has been overshadowed by more recognizable brands like Schwinn and ProForm. Schwinn, for one, has multiple models out in the market, including the 230 recumbent bike, the 130 upright and the Airdyne exercise bike. Scwhinn's products can cost from $350 to over $1,000. One of the brand's more expensive model, the Evolution, sells at more than $1,000 and has been highly rated by product reviewers. It features an inertia drive system, adjustable resistance and direct drive gearing.

ProForm, another brand competing with DP in the indoor bike market, offers machines that cost $150 to $1,200. One of its low end models is the SR30. The features of this machine are very basic and the model is geared at entry level market. It features magnetic resistance, pulse sensors and an LCD console. Other ProForm models targeting the low end and middle markets are the SR80, GL 35 and GL 105.

The DP brand might not be at the top of the market, but its machines still serve the basic operating functions of exercise bikes. They offer users the ability to tone and strengthen leg and thigh muscles and provide an effective cardiovascular exercise routine. Limited availability aside, DP exercise machines, including the secondhand models being sold in online auction sites, might still be worth consumers' time and investment.

The DP exercise bike is not exactly hogging the physical fitness equipment limelight, but there are still those who like the brand. For these loyal customers, auction sites and online stores are their best options of finding one these products.

Are you looking to buy an exercise bike? Before purchasing read more about Schwinn elliptical trainers and Weider exercise equipment at http://www.staminaexercisebike.com