错误: 此页无法显示。更多信息请联系技术支持部门。 事件 id 为:763670008. This reciprocal FREQUENCY COUNTER is a microprocessor-controlled instrument for frequency measurement. Due to uniquely developed LSI circuitry in an expanding/reciprocal system, high accuracy with 9digit resolution is a- chieved with a ten second gate time. It covers a frequency.
- Small Frequency Counter
- Retevis R-511 Frequency Counter Manual User Guide Pdf Free
- Frequency Counter Uses
Many customers bought our Retevis walkie talkie that has keyboard and LCD display, but they don’t know how to write frequency manually.
Sometimes you are not able to get a computer or a programming cable, writing frequency manually is very easy and convenient.
Let’s take Retevis RT 5R walkie talkie as an example to show how to write frequency manually :
May 07, 2016 Retevis Frequency decoder Counter Meter Test, This Meter using dot-matrix LCD display is designed to detect frequency, CTCSS and DCS of radio device.This Frequency Meter adopts the antenna inductively measure, without the use of the feeder, direct detect, convenient and quick.
For example: you want towrite data as below:
RXfrequency: 146.6250
TX frequency: 151.6250(OFFSET between TX frequency and RX frequency is 5)
Small Frequency Counter
RXCTCSS: 67.0HZ
TXCTCSS: 254.1HZ
- take RT 5R walkie talkie at hand, turn on the radio
- you can only write frequency on”frequency mode”, soshort press the“orange” color “VFO/MR”key on the left top of the radio,to switch between frequency mode and channel mode. There’s prompt tone on the radio for the mode.
- please keep in mind “frequency”show on LCD displayis ” Receive frequency”. input”146625″ on, you will see this receiving frequency show on LCD(“.” decimal point no need input)
- Short press menu—short press (#25 )Key—short press menu–SFT-D–short press menu–up/down to select”+”–short press menu to confirm
- .Short press menu—short press (#26 )Key—short press menu–offset–short press menu–up/down and write 05000–short press menu to confirm
- Short press menu—short press :(#11)Key—short press menu—R-CTCS—up/down key to select RECEIVE CTCSS(choose67.0hz)—short press menu to confirm.
- Short press menu—short press (#13 )Key—short press menu—T-CTCS—up/down key to select TRANSMIT CTCSS(choose 254.1hz)—short press menu to confirm
This way you successfuly write frequency manually on RT 5R, Retevis RT5 and RT 5RV has same way to write frequency manually, if you have interests, please have a try!
Wanna know how to write frequency manually on Retevis walkie talkie RT6,RT2, RT3, which have keyboard and LCD display? You can contact kam@retevis.com at any time.
Retevis always assure the best service!
For radios with LCD display, it’s easy to check the frequency and CTCSS in working. But for a radio with no LCD display, sometimes you need know frequency and CTCSS, in order to make communication with other radios in time. A frequency decoder helps here. This Meter using dot-matrix LCD display is designed to detect frequency, CTCSS and DCS of radio device.
Retevis R-511 is a hot selling frequency decoder. It’s small in size, convenient to carry. Net Weight: 6.21oz(176g)
Detect frequency range mainly: R-511 Mainly used VHF:136-174MHz UHF: 400-520Mhz.
1.Pull out the antenna to longest length, make sure a good receiving effect
2.Press the side power key to turn on the device
3.Long press the power button can select 0.1K or 1K allowance when detecting frequency
When select 1k, the frequency will be 3digits after decimal point. Like: 462.500
When select 0.1k, the frequency will be 4digits after decimal point. Like: 462.5005
4.When switch to AUTO 0.1K, loose your finger on the power on button. Then you will see there’s 4 figures after the decimal point.
5.Radio lean to R-511 antenna, the best distance between the detected device and this Meter is 2-20cm
6.Press PTT key on the radio, you will see frequency on the 1st line, CTCSS on the 2nd line.
If there’s no CTCSS on the radio, 2nd line will show NON CTCSS
7.When you want to detect other radio or other frequency at this time, then we need reset R-511
Just “short press” pow on key to initialize the device is ok
Notes:Its LED will light up until only the CTCSS is measured; if there is no CTCSS, the red light will not light up.
Retevis R-511 Frequency Counter Manual User Guide Pdf Free
Done! The frequency and CTCSS will keep showing 30seconds, before device auto power off. Do you know how to operate it now?
Frequency Counter Uses
Any questions, please feel free to contact kam@retevis.com for support, thanks!