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Tag Archives :Power

Why is the actual output power of your walkie-talkie so low?

In order to communicate with more hams, when we choose walkie-talkies, we will like to choose the highest output power as much as possible when permitted by law. However, sometimes the actual power is much lower than the nominal power. Why or how can we obtain higher output power?  ...

Read more  Ailunce HD1,  Output Power

How to choose the right power supply for your radio?

Power supply is the basic equipment for hams. especially for shortwave radio and mobile radio, the input voltage can affect the output power. So, it's very important to choose the suitable power supply. but, what aspects should we pay attention to when choosing a power source for our radio?  ...

Read more  Amateur Radio,  power supply

Why is the Mobile Radio Easy to Burn the Power Amplifier?

"If the antenna feed is not well-matched, it will burn the power amplifier." That is, if the standing wave ratio is high, there will be the risk of burning the power amplifier.  ...

Read more  SWR,  power amplifier

What's power amplifier of Shortwave?

At present, most of the radios we use are within 100W, or even below 50W. But with the increasing electromagnetic interference in cities, it has become more and more difficult to make QSO with hams around the world with only these radios. In order to improve the quality of communication and increase the transmitting power of the radio, it is necessary to buy a short-wave high-power amplifier to work with our radios.  ...

Read more  Shortwave,  Power Amplifier,  Amateur Radio

Retevis RT91 DMR/Analog Power Amplifier

Retevis RT91 Amplifier DMR UHF/VHF Digital/Analog Two Way Radio. Portable and lightweight for convenient use. High output power up to 30W.  ...

Read more  RT91,  Power Amplifier

Make a Unique Power On Screen Logo for Ailunce HD1

I think everyone wants to make a unique power on screen for Ailunce HD1. It may make others envy you. But how to do it? Take a look at the steps below.  ...

Read more  HD1,  Power On Screen,  Turn On Screen

What to pay attention to when using the electron tube amplifier

The Electron tube power amplifier is the most common power amplifier of hams. we summarize some precautions when use the Electron tube power amplifier in the blog.  ...

Read more  Amateur Radio,  Electron tube,  Power amplifier

What's the meaning of dB in amateur radio?

When talking about the gain of antennas and power amplifiers, the dB is often mentioned, but do you know what it means and how do we use it?  ...

Read more  dB,  Power,  Mic gain