[BC] Connector insertion loss

[radioranger]

Wouldn't it be a more real world test if RF ( like 5+ KW) was applied for a
period of time between connection cycles to see if the missing plating or
deformation of the contacts caused different current flow paths and
therefore heating of the connector surfaces??

Steve B.


>>-----Original Message-----
>>From: broadcast-bounces at radiolists.net [mailto:broadcast-
>>bounces at radiolists.net] On Behalf Of RichardBJohnson at comcast.net
>>Sent: Monday, May 19, 2008 6:11 PM
>>To: broadcast at radiolists.net
>>Subject: Re: [BC] Connector insertion loss
>>
>>
>>Sent the wrong link----
>>
>>http://www.tru-con.com/library/TRU_EIA_DurabilityReport.pdf
>>
>>They're all about the same.
>>
>>--
>>Cheers,
>>Richard B. Johnson
>>Read about my book
>>http://www.LymanSchool.org
>>
>>
>> -------------- Original message ----------------------
>>From: RichardBJohnson at comcast.net
>>> Something like 0.125 dB
>>>
>>> http://www.trucorporation.com/library/TRU_MEIA_DurabilityReport.pdf
>>>
>>> Your mileage may vary. When calculating transmitter power for
>>> a licensed ERP, at one time it was "standard" to add 0.125 dB
>>> attenuation for every flange in the system, regardless of the
>>> transmission line type. This would give you 6.25 dB loss on
>>> a 1,000 ft transmission line if you had 20 ft sections of hard-line.
>>> Andrew's sale "spiel" was that you could save 1/2 your power
>>> by using one section of Heliax instead of 50 sections of hard
>>> line.
>>>
>>>
>>> --
>>> Cheers,
>>> Richard B. Johnson
>>> Read about my book
>>> http://www.LymanSchool.org
>>>
>>>
>>>  -------------- Original message ----------------------
>>> From: Allen Sherrill <warp99 at hotmail.com>
>>> >
>>> >
>>> > Can anyone tell me what the typical insertion loss would be for RF
>>connectors
>>> at
>>> > FM broadcast frequencies?
>>> >
>>> >
>>> >
>>> > I am guessing it would be in the hundredths of a dB.  This would be
>>for
>>> > EIA flange connectors on 1 5/8" air dielectric line.  Can't find this
>>> > spec on any of the manufacturer's data sheets.
>>> >
>>> >
>>> >
>>> > Allen Sherrill
>>> >
>>> > _________________________________________________________________
>>> > Keep your kids safer online with Windows Live Family Safety.
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