5秒后页面跳转
RM-9419 PDF预览

RM-9419

更新时间: 2024-10-29 22:43:55
品牌 Logo 应用领域
其他 - ETC /
页数 文件大小 规格书
2页 70K
描述
RM-9419

RM-9419 数据手册

 浏览型号RM-9419的Datasheet PDF文件第2页 
)
)
)
)
)
)
In the matter of RM-9419 to allow  
certain AM licensees to be able to  
operate FM translators.  
BEFORE THE FEDERAL COMMUNICATIONS  
COMMISSION, Washington D.C.  
COMMENTS  
1. I am filing these comments to oppose the American Community AM Broadcasters Association’s  
(ACAMBA) petition. This petition calls for AM broadcasters which meets certain power  
qualifications and have no FM station in the same market to be able to obtain FM translators in order  
to provide nighttime service.  
2. The AM service (formerly known as the Standard Broadcasting Service) has been in existence since  
the 1920’s. The original AM stations were only licensed on one of two frequencies. Stations were  
subject to interference. Due to the interference caused by co-channel stations, more channels were  
created. In my generation, the FCC spearheaded the expansion of the AM broadcast band to 1700kHz  
in an effort to reduce interference.  
3. The bottom line is that interference is a reality. When a licensee originally was granted their  
broadcast license, they should have known their station was subject to nighttime interference.  
4. Back in the 80’s, the broadcasters hung themselves by demanding that additional stations be given  
nighttime authority on designated clear-channel frequencies. For example, here in Phoenix, we have a  
station on 740kHz. This station used to be a daytime only station back when it was KMEO(AM). The  
station now has unlimited authority with reduced power and a directional antenna. The station can not  
be heard 8 miles away because of interference from KCBS(AM), San Francisco. The reason, 740kHz  
is a clear channel. There really is no need for this station in Phoenix to be operating at night on  
740kHz.  
5. By allowing the AM stations to operate FM translators, we are granting them a service area that they  
were not entitled to in the first place. I also see this petition as an attempt to allow the AM stations to  
be allowed to simulcast on FM, a practice that I thought was banned many years ago so the FM band  
would be able to diverse from AM when AM was the primary broadcasting band. Allowing AM  

与RM-9419相关器件

型号 品牌 获取价格 描述 数据表
RM944D RAYTHEON

获取价格

NAND Gate, DTL, MDIP14,
RM944DC RAYTHEON

获取价格

NAND Gate, DTL, CDIP14,
RM944J RAYTHEON

获取价格

NAND Gate, DTL, CDIP14,
RM945DC RAYTHEON

获取价格

R-S Flip-Flop, 1-Func, Master-slave Triggered, DTL, CDIP14,
RM946CJ RAYTHEON

获取价格

NAND Gate, DTL, CDFP14,
RM946D RAYTHEON

获取价格

NAND Gate, DTL, MDIP14,
RM946J RAYTHEON

获取价格

NAND Gate, DTL, CDIP14,
RM948D RAYTHEON

获取价格

R-S Flip-Flop, 1-Func, Master-slave Triggered, DTL, MDIP14,
RM948J RAYTHEON

获取价格

R-S Flip-Flop, 1-Func, Master-slave Triggered, DTL, CDIP14,
RM950D RAYTHEON

获取价格

R-S Flip-Flop, 1-Func, Negative Edge Triggered, DTL, MDIP14,