[Motorola]How to adjust the sensitivity of walkie-talkie receiving?
Following shared by Marine Radio Supplier China.
Do you know any of the ways to increase the intercom distance?
1. Increase the transmitting power; 2. Increase the antenna; 3. The same is true for the MOTOROLA walkie-talkie, so what are the ways in which the MOTOROLA walkie-talkie adjusts the reception sensitivity?
The receiver sensitivity of the MOTOROLA walkie-talkie greatly affects the
communication distance. General interphone factory, the sensitivity has been
adjusted to the best state according to the relevant technical requirements, in
the absence of professional equipment and technical personnel, do not adjust the
interphone reception sensitivity. For users, in addition to adjusting the
threshold value of the walkie-talkie, they can also improve the receiver
sensitivity of the walkie-talkie by changing to a high-gain antenna. For
example, for the antenna of the handset, the pull rod type gain is the highest;
Whip r / 4 times, spring spiral minimum. Machine outdoor antenna gain has
clearly stated when leaving the factory, the higher the average gain of the
antenna, its physical size also the longer, the greater the capacity of the weak
signals. When it is used in antenna, we should pay attention to change with the
frequency of the antenna (antenna in different frequency bands cannot be used
interchangeably). Otherwise, not only will not increase the receiving
sensitivity, even may cause a large standing wave due to antenna mismatch,
damages the rf power amplifier.
That's all for the sharing today,and if you have any demand for our products, welcome to purchase our Marine Radio for sale.