The first link is for dB per 100 meters. The second link is for dB per 100 feet, and gives 2.6 dB. nominal.
73,
Alan WA4SCA
<-----Original Message----- <From: AMSAT-BB [mailto:amsat-bb-bounces@amsat.org] On Behalf Of Glenn <Miller - AA5PK <Sent: Tuesday, January 23, 2018 14:36 PM <To: AMSAT BBS amsat-bb@amsat.org <Subject: Re: [amsat-bb] Exciting Coax < <9913F7 has nearly 10 dB attenuation/100 feet at 400 MHz. 9913 has about 2.6 <dB. < <https://edesk.belden.com/products/techdata/metric/pdf/9913F7.pdf <https://catalog.belden.com/techdata/EN/9913_techdata.pdf < <I know which I'd choose. < <-----Original Message----- <From: Norm n3ykf <Sent: Tuesday, January 23, 2018 1:09 PM <To: Greg D <Cc: <, amsat-bb@amsat.org>, ; anderson58625 <Subject: Re: [amsat-bb] Exciting Coax < <9913 is not 9913F7 < <Google is your friend, or perhaps if one is lazy, not. < <Norm n3ykf < <Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb <_______________________________________________ <Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available <to all interested persons worldwide without requiring membership. Opinions <expressed <are solely those of the author, and do not reflect the official views of AMSAT- <NA. <Not an AMSAT-NA member? Join now to support the amateur satellite <program! <Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb