GB/T 22712-2021
变频电机用G系列冷却风机技术规范
2021-10-11
JIS C 6421-1994
Intermediate frequency transformers for broadcast receiver
广播接收机用中频变压器
1994-01-01
MIL MIL-R-28886A Notice 1-Inactivation
RECEIVER, LOW FREQUENCY, MEDIUM FREQUENCY, AND HIGH FREQUENCY COMMUNICATIONS (SUPERSEDING MIL-R-28886)
低频、中频和高频通信接收机（取代MIL-R-28886）
1998-04-04
MIL MIL-R-28886A
RECEIVER, LOW FREQUENCY, MEDIUM FREQUENCY, AND HIGH FREQUENCY COMMUNICATIONS (SUPERSEDING MIL-R-28886)
接收机 低频、中频和高频通信（取代MIL-R-28886）
1985-05-23
CTA 109-D(R2015)
Intermediate Frequencies for Entertainment Receivers (Formerly ANSI/CEA 109-D (R2015))
娱乐接收机的中频（原ANSI/CEA 109-D（R2015））
2010-06-01
ITU-R SM.1836
Test procedure for measuring the properties of the IF filter of radio monitoring receivers
测量无线电监测接收机中频滤波器性能的试验程序
2007-12-18
GOST R 51663-2000
Устройства одновременной работы передатчиков низких и средних частот на общую антенну (общий фидер). Основные параметры. Общие технические требования. Методы измерений
低频和中频发射机的双工器 基本参数 一般技术要求 测量方法
IEC 61097-9-2025
Global maritime distress and safety system (GMDSS) - Part 9: Shipborne transmitters and receivers for use in the MF and HF bands suitable for telephony, digital selective calling (DSC) and reception of maritime safety information and search and rescue related information - Operational and performance requirements, test methods and required test results
全球海上遇险和安全系统(GMDSS) 第9部分:适用于电话、数字选择性呼叫(DSC)和接收海上安全信息和搜救相关信息的中频和高频波段的船载发射机和接收机 操作和性能要求、试验方法和所需试验结果
2025-06-11