Buying the Correct RC Measurements on

When play with your RC model it is important to get accurate measurements before you start to enjoy your playing. Getting the correct numbers for the current (Amps), peak current, voltage (volts), power (watts), energy (watt-hours), charger, and more to use to safety your playing or do several calculations.

Today, we will recommend you the SKYRC digital pitch gauge that is designed for model helicopters and serves to measure the rotor blade pitch value. When we want to get the dimensions and detect the pitch angle, we had to take out a tape measure, find someone to hold the other end, write down the numbers and then work out the calculations for the area. The draw back to that method was that it takes time and can be quite a bit off in accuracy.

Now there is a far better way to get measurements within seconds and with accuracy within 1/16 if an inch. SkyRC digital pitch gauge has taken the hassle and guesswork out of measuring. Instead of rolling out a tape, you simply aim at the big display screen, or a target you set up and press a button to get the measurement. Because it can measure the rotor blade pitch value for RC model helicopters in as little as 4 seconds.

Aside from the assurance of a true measurement and the benefit of saved time, measuring with a digital pitch gauge eliminates a great deal of inconvenience. You don’t have to spend a lot of time to read the instruction and operated all by yourself without other’s help as it is very simple to use.

SkyRC Digital Pitch Gauge

You don’t have to write down the results because the device records it for you. You also don’t need to worry about forgetting to turn off power as it will auto power-off after 20 minutes without any movement. You will be very pleased with its fast and accurate measurement.

Whether new construction or renovation, professionals depend on quick and accurate measurements, so choose a reliable digital pitch gauge will be benefit your RC hobby.

In additional, there are a number of different RC measurements to choose from. Which one you want to pick depends on your needs. If you have any question, feel free to contact

Tecsun PL-380 Review

Serial#: 369-2010-0202-752 03/2010
Price: £38.10 Plus FREE shipping on

Tecsun PL-380 radio

TECSUN PL-380 is one of the most popular TECSUN serial digital radios. It is designed the high-performance, low power, multi-functional, easy-to-wide-band digital tuning radio. Uses the Silicon Labs si4734 digital signal processing chip which is the industry’s first fully integrate. Digitalize the analog AM/FM broadcasting signal base on the modern software technology and radio principles. Read Tecsun S2000 Air Band Radio Receiver Review.

It provides an outstanding choice of filter selectivity of 6 KHz, 4 KHz, 3 KHz, 2 KHz, and 1 KHz, minimizing interference, and tunes the long wave, medium wave, shortwave and FM bands. This little receiver is truly a quantum leap in technology.

There are 550 memory presets total. Two sets of automatically stored memories mean you can have one set at home and one set to use each time you visit a new location.

FM 87 ~ 108MHz (Russia 64 ~ 108MHz, Japan 76 ~ 108MHz, USA 87.5 ~ 108MHz)
Mediumwave: 522 ~ 1620 kHz (USA 520 ~ 1710 kHz) with 9 kHz/ 10kHz tuning step selectable
Longwave: 153 KHz to 513 KHz
Shortwave: 2300 KHz to 21950 KHz

Features include 12/24 clock with alarm, control lock, signal strength and S/N display, sleep timer, lighted dial, 7 tuning modes, temperature reading, stereo FM reception through the earphones, 5 bandwidth settings and (1, 2, 3, 4, 6 kHz). If you are a fan of Tescun DSP radios, you can’t miss this Tecsun PL-380 radio.

It uses 3 AA batteries, and can recharge them through an external USB cable. The radio comes with zipper carrying case, ear buds, manual and a clip-on external antenna.

Unit size: 135 x 86 x 26 mm (W x H x D)

Pro: DSP chip really does clean up noisy signals on all receive bands. Include five bandwidth settings. Work near-miracles on marginal FM. It is a slim and compact pocket machine, suited to go out, travel use in the morning.

Con: Poor internal AM antenna. No antenna inputs (but clip-on & inductive coupling work OK). LW is nearly non-functional (who cares). No SSB, and 22 MHz tuner limit doesn’t reach up to CB and 10m ham frequencies (but at £38.10, that’s too much to ask).


PL-505 PL-380 PL-360
shortwave automatic search
SW search time 2:42 3:13 4:46
ETM units 35 units (without antenna) 33 units 28 units
Receiver performance
MW S/N is slightly better Weak signal units
FM better than PL-380 with Antenna good
SW S/N is slightly better with Antenna good
Sound thin thick thick

Visit Tecsun PL-380 for more detail.

High Quality Radio Receivers are Available for Order

Great news for radio enthusiasts: Tecsun radio and Degen radio receivers are available for order on mBuyNow. Tecsun is one of the biggest radio specialists. And honor a good reputation for its reliable quality, attractive design, and good customer service. Degen is also a leader designers and manufacturers. You may fall in love with its unique appearance, quality digital voice, and more.

mbuynow always fit your needs. We are dedicated to be your No.1 RC hobby store; however, some of you may have many other hobbies, such as riding, racing and diving. We expand our product range to give you more choice and make life more convenient.

A good digital radio receiver has an important meaningful for radio enthusiasts. With your radio, it becomes possible to listen to stations from all around the world, as well as those from broadcasters nearer home.

We strive to make your radio receiver purchases easy. Since we understand that finding the right radio for your needs can be overwhelming and confusing at times. We provide you as much information as well as clear multiple pictures as possible to help you find the right one and your equipment. We also offer educational articles and tips to help you choose the quality radio and understand common problems. By us providing education you are able to make the right purchasing decisions as well as provide proper care for your radios.

Come and check our attractive pricing on the Tecsun PL-606, PL-390, PL-380, PL-360, S2000, BCL3000, Degen DE1103, DE16 and DE13 for more detail!

Tecsun PL-606 DE1103 PL390
Tecsun PL-606 Degen DE1103 Tecsun PL390
Tecsun S2000 Tecsun PL-380 DLE 55
Tecsun S2000 Tecsun PL-380 Tecsun PL360

Are Two-Stroke Engines Better than Four-Stroke Engines?

Four-stroke and two-stroke are also called four-cycle and two-cycle, respectively. Most of dirt bike, motorcycle or RC enthusiasts are confused about which one has a better performance.

The two types of engine are found in virtually all heavy duty applications such as trucks, ships, locomotives, power generation, and stationary power. But most small engines are two-stroke as they care compact, no need for radiator as they are air cooled, have no sump for oil which can operate upside down or on an angle.

The 4-stroke engine uses a system of valves to control gasoline combustion within the engine block. These valves help lower the heat within the engine block by allowing hot air to escape and keeping engine shafts well lubricated.

The four-stroke has more moving parts so it’s more difficult to reach high rpm without engine failure. 6000 rpm would be the upper limit. For example, a motorcycle with a two stroke engine has a higher acceleration but the 4 one will win after a couple of miles.

Then which one is better for hobby use.

Have a look at what they say.
Paul, “2 strokes are a lot of fun!! They create wacky crazy high horsepower for a small displacement engine, and when they get into the high RPM”

Revitup, “2 stroke…yeah, definitely 2 stroke. More power = more fun! Cc to cc 4 strokes can’t touch a 2 stroke. It is that plain and simple!”

Brandon, “2-strokes are better in speed and acceleration, but 4-strokes you have more control when riding with other riders 2-strokes are for the track when practicing or something.4-strokes are really considered better to be rode in motocross a 2-stroke is out of control and not the kind of handling you want for a bike my opinion 4-strokes are better.”

GW26i Gasoline Engine 2 stroke engine

Michael, “4 stroke engines do tend to ‘waste fire’ the spark plug at the end of the exhaust stroke but this would not cause an explosion, but again here the idea of ‘waste firing’ has nothing to do with the 4 stroke cycle, rather it is a result of the simple design of a motor.”

However, shalem said, the winner is obviously the engine which has been given more time and technology in its development. But nobody knows when the honest “internal combustion” engine is going to get replaced by the next new breakthrough in “Automobile Engineering”.

Should you buy a two-stroke or four-stroke engine? Do you have a favorite one? Feel free to share in the comment.

New Arrival USB Mini Electric Toy for Lighting on mBuyNow

Nowadays, more and more hi-tech electric products came into use in daily life. Here is a new arrival mini LED light. It is compact and exquisite. With the USB port, you can insert it to any USB charging port for lighting.

This multi-functional LED light can be used in many situations:
1. When you work in night without desk lamp, insert this mini led into the USB port of laptop. It will be a great help to see the keyboard clearly and you don’t need to worry about disturbing others.
2. There are total 9 colors of this series LED lights. Insert them into a multi-port USB device; you will get a bright lighting with colorful beams.
3. It is small and light weight. When you go camping or exploring, insert it on your portable power source, you will get convenient and useful light.

“We are glad that customers like this pet toy very much as they are cost-efficient

Thought days reliable Target works way the gross your make Not.

and useful. We have developed 9 lovely colors as users can enjoy different lights when using them. There may be more adorable colors or styles in the future.” said by mBuyNow sourcing manager.

Such electric toys emerge everyday and customers can choose the one they like. mBuyNow aims to bring more and more interesting and useful products for every customer.

4 Stroke Engine Advantages and Disadvantages

You may have heard a lot about two and four stroke engines. Last article, we have learned about

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the advantages and disadvantages of two-stroke engine. There are strong opinions in pro and con of each of the engine types. So, in this post, we will talk about the 4 stroke engine.

Just keep reading…

Four stroke engine is also called four cycle engine. It uses the piston completes four separate strokes—intake, compression, power, and exhaust. Two-stroke engines are light weight and groovy power band, but the fact is that 4-stroke engines are preferred for almost every road-going vehicle on the planet.

More torque
This is the most important reasons why people choose a 4-stroke engine. The two-stroke boasts its speed and power, but the four-stroke shows extra torque. It is more reliable and quitter.

Last longer
Four stroke engines last longer and use much, much less oil. Compared to two-stroke engines, the four stroke engine is durable for use. The more times an engine goes around, the quicker it will wear out. As 2-strokes must rev to very high RPM to make any power, most applications using them are geared toward maintaining that RPM. Thus, they can’t live as long as four-stroke engine.

Run much cleaner than 2 strokes
A 2 stroke makes a lot of exhaust smoke because it burns oil mixed with fuel. On the contrary, four-stroke engines have a dedicated oiling system that’s kept largely separate from the combustion chamber, which help to ensure that the only thing burning in the engine is gasoline.

More efficient use of gas
If you have picked up both of them, you may obviously realize the problem. The intake and exhaust accounted 360 °crank angle, the exhaust top dead center the piston upward, the residual gas is exhaust forcibly. When a mixture of fuel and air is forced by atmospheric pressure into the cylinder, the piston down to the intake bottom dead center, the incoming fresh mixture almost combust. Substantially, there is no wasted fresh mixture. However, for two-stroke engine, the fresh mixture is escaping with exhaust gases during exhaust stroke.

Two-stroke engines do not have valves, simplifying their construction. However, there are more parts to worry about in a four-stroke engine which results in harder to troubleshoot.

Half as powerful as two stroke engines
For equivalent engines, the four stroke ones fire once every two revolutions, while two stroke engines are more powerful because every revolution of the engine includes a power stroke.

More expensive than 2 stroke
A four-stroke engine is much more expensive and complex than a two-stroke one. It has more complied with more parts so they often require repairs more often and it is usually more expensive.

Two Stroke Engine Advantages and Disadvantages

Lighter, better, more efficient and cost less, that are the reasons why two-stroke engine is attracted by people. A two-stroke engine is also called two-cycle engine, it completes a power cycle in only one crankshaft revolution and with two strokes, or up and down movements.

The basic components of a two-stroke engine include combustion chamber, spark plug, pistons, reed valve, crank case, exhaust outlet and cylinder block, some come with cooling fins, but most two-stroke engines are air cooled. Some two-stroke engines have a more elaborate ignition system, featuring a distributor and ignition coil. A water-cooled two-stroke engine will also have a water pump and radiator too.

In a “two stroke” engine, every second stroke is a “power stroke” (where the piston is burning gas and making power) and the other stroke is an “exhaust stroke” where the burned up gasses are cleaned from the cylinder.

2 Stroke Gasoline Engine
GF26i 26cc Gasoline Engine

So, what are the advantages?
Compact, lighter, cost less
Two-stroke engines do not have valves, simplifying their construction. Compared to 4-stroke engines, they have a greatly reduced number of moving parts, are more compact and significantly lighter. Additional, two-stroke engines are cost less to manufacture.

High power to weight ratio
Two-stroke engines often provide high power-to-weight ratio, usually in a narrow range of rotational speeds called the “power band”. Fire once every revolution which gives two-stroke engines a significant power boost. Thus, they have the potential for about twice the power in the same size because there are twice as many power strokes per revolution.

Problems of the two-stroke engine (Read more Are Two-Stroke Engines Better than Four-Stroke Engines?)
This is the big disadvantage of two-stroke engine, each time a new mix of air/fuel is loaded into the combustion chamber, part of it leaks out through the exhaust port. And the oil makes all two-stroke engines smoky to some extent, and a badly worn two-stroke engine can emit more oily smoke.

Shorter life than four-stroke engine
They can’t live as long as four-stroke engines. The lack of a dedicated lubrication system means that the parts of a two-stroke engine wear-out faster.
Higher Consumption
Fresh mixture is escaping with exhaust gases during exhaust stroke.

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