August 30, 2009
Walkie talkie radio is widely used in construction project. Lightweight and easy to use is the best reason to choose walkie talkie radio rather than amateur radio equipment to handle communication traffic. But do you know how the walkie talkie signal act in concrete area?
Basically a concrete wall is perfect obstacle for radio signal come out from walkie talkie radio. Especially if you use FRS/GMRS walkie talkie radio system where the frequency usage is in UHF category. Theoritically, you will get communication difficulty with your walkie talkie pair.
So you need reflectors to make your RF signal can be delivered to your communication pairs. If your construction project in the middle of concrete forest, these are so many reflectors available to your walkie talkie traffic. But if your concrete construction project is the first in the area, so you have to search to some point to search good position to give your walkie talkie pairs can “see” each other.
August 27, 2009
When I was a kid, it’s so fascinating watch adults use walkie talkie radio to talk with someone far. It’s also looks so modern for a kid. Walkie talkie radio is dreaming toy and always give best fun level.
At that time, walkie talkie radio was working on 27 Mhz frequency. Not sure why is that. But I think it’s caused by 27Mhz is free band where CB radio and walkie talkie can work without license needed.
And nowaday walkie talkie radio is working on 462 Mhz where FRS/GMRS communication system had their frequency slot. Maybe term of “walkie talkie” also replaced with term of “FRS/GMRS”.
Some advantages are obtain with this frequency shifting. At least modern walkie talkie radio give better audio quality (they use FM modulation for walkie talkie) and also the walkie talkie size can be shrinked phisically. So now it’s common when we saw walkie talkie radio as small as watch wrist in kid hands.
August 18, 2009
Ongoing concerns about global recession is still pressing the situation in financial markets, walkie talkie radio producers and commodities in the day Tuesday yesterday. Although some of the credit points and news about the government’s plan to prepare a plan of economic disaster anticipation phase 2.
News said price of gold down 3% compared to the previous day in the atmosphere menguatnya dollar exchange rate in the dollar gave investors turned away from saving in the form of a noble metal. While crude oil prices down to 4% to $ 70 level. And copper prices also slide down after China, the largest metals consumer, needs logamnya preach decrease as a result of weakening exports. Walkie talkie price also drop as these are several factories in China also sell their own walkie talkie version to market.
Impairment that occurs in the sharp commodity sector and stock market reaction to the company as a commodity in the storm of recession is not long over the world. This concern and to trigger efforts to loosen liquidity in the market. Commodity prices weakened due to concerns strengthen this recession. Walkie talkie also used on trading floor.
From the floor while the American stock index Dow Jones dikabarkan weakened 2% after the company announced the existence of many possible decrease in performance in the future walkie talkie. Dow Jones Index closed at 9,089.73 level before the morning. Meanwhile, the index weakened 2.71% Nasdaq closed at 1722.13.
