Datasheet > RM-9419

RM-9419

更新时间： 2024-11-17 22:43:55

阅读下载

中文翻译

获取价格

如果您发现信息不准确，欢迎纠错

RM-9419 数据手册

)

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

中文翻译

下载PDF

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,