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What Role does Shortwave Communication play in Wireless Communication?

Shortwave is the originator of radio. When the radio was invented, the transmission method was shortwave. In modern times, the frequency band used by radio has expanded to ultrashort wave, microwave, and even higher, but short wave still plays an extremely important role.   ...

Read more  Shortwave,  emergency communications

Is there an NGP antenna suitable for RetevisRT73?

Which NGP antenna suitable for RetevisRT73? MR200 U/V Dual Band NGP Antenna and NMO Mount  ...

Read more  NGP Antenna,  NGP antenna for RetevisRT73

Comparison of Amateur Radio Digital Voice Modes

Understanding the different modes of digital voice can enable amateurs to clearly understand the bandwidth and transmission rate used by the digital voice mode. It can also help us understand which mode is easier to get started and which mode should be experienced in the future.  ...

Read more  Digital Voice,  DMR,  C4FM,  D-Star

What is Radio Direction Finding?

Radio direction-finding is the process of using instruments to determine the direction of radio waves based on the propagation characteristics of electromagnetic waves.   ...

Read more  RDA,  ARDA

How does the TimeSlot Works on RetevisRT73?

How does the TimeSlot Works on RetevisRT73?  ...

Read more  Retevis RT73 DCDM

Can you Monitor Different Color Code on Retevis RT73

Can you Monitor Different Color Code on Retevis RT73? The answer is Yes.  ...

Read more  Monitor color code on RT73,  Retevis RT73

How to set the mixed receiving channel on Retevis RT73

when you connect to this repeater, if you use a digital radio you need to set a digital channel and also an analog channel. But if you have RetevisRT73 mobile radio, you can set only one channel to monitor this repeater.  ...

Read more  RetevisRT73 mobile radio,  RetevisRT73,  mixed receiving channel

Can You Use the Radio When it is Charging?

Why cant use the radio when it is on charging? How to protect your battery?   ...

Read more  dont use the radio when it is on charging

What's the baud Rate?

The baud rate is the number of code symbols transmitted per second. It is a measure of the symbol transmission rate. For electronic communication, the baud rate is the modulation rate, which refers to the rate at which the effective data signal modulates the carrier, that is, the number of times the carrier modulation state changes per unit time.  ...

Read more  Baud Rate,  Amateur radio