Dear customers and suppliers: According to the notice of the general office of the State Council, the New Year’s Day holiday in 2022 is now arranged as follows: From Jan. 1st (Saturday) to 3rd (Monday), 2022 (i.e. Nov. 29th to Dec. 1st. in the lunar calendar) total 3 days off, and will work on Jan. 4th (Tuesday) (i.e.Dec. 2nd in the lunar calendar). Hope all customers well noted. In addi……

Table 1-Standard radar-frequency letter band nomenclatureInternational tableBand designationNominal frequency rangeSpecific frequency ranges for radar based on ITU assignmentsRegion 1Region 2Region 3HF3-30 MHzVHF30-300 MHzNone138-144 MHz216-225 MHz223-230 MHzUHF300-1000 MHz420-450 MHz890-942 MHzL1-2 GHz1215-1400 MHzS2-4 GHz2300-2500 MHz2700-3600 MHz2700-3700 MHzC4-8 GHz4200-4400 MHz5250-5850 MHz52……

The Drop in isolator/circulator is usually installed on the circuit board, the following is the installation instruction： Slotting on the circuit board to locate the drop in part. (The depth of the slot depends on the distance from the pin to the ground.) Solder the pin onto the circuit board (welding temperature <180°). Do not put too much solder paste, and pay attention to the VSWR match of c……

In order to maintain the order of air waves and promote the development of the radio industry, the China Ministry of Industry and Information Technology has strengthened and regulated the 2400-2483.5MHz, 5150-5350MHz, and 5725-5850MHz frequency bands (hereinafter referred to as the 2400MHz, 5100MHz and 5800MHz frequency bands) and issued the notice of Strengthening and Standardizing 2400MHz, 5100M……

To make it easier for you to inquire about the current frequency usage of the public mobile communication system in China, the relevant frequency information that the Ministry of Industry and Information Technology has licensed to the four basic telecommunications operators is now organized as follows (as of September 2021)OperatorsFrequency bandNetwork standardChina Telecom850MHzCDMA/LTE FDD1700/……

For amateur radio communications, VHF and UHF frequency bands are frequently and convenient used by radio enthusiasts. Whether at home, in a car, traveling, or at work, they are all accompanied by U/V frequency bands equipment. So what is the U/V segment? UHF&VHFThe VHF frequency band ranges from 30 to 300 MHz, and the radio wave wavelength is 10 to 1 m, so VHF is also called the meter wa……