March 2019
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Now where is that BNC male to N female adaptor

Working with RF can produce some head scratchers.  Most transmitter manufactures tend to use the same type of connector for things like exciter RF outputs and composite inputs.  Over the years, I have become well stocked with all sorts of BNC and Type N connectors.  Satellite equipment uses Type F connectors, Analyzers use Type N, Oscilloscope uses BNC,  GPS equipment uses SMA and so on.  Except when they don’t.  As any good engineer will tell you, when they don’t will be in the middle of the night at some mountain top location while the station is off the air.

After one such incident, I invested in a TPI-3000A adaptor kit.  This kit has both the male and female versions of Type N, F, SMA, BNC, TNC, UHF, UHF mini and RCA.  They can be mated in any combination using the Universal interface.

TPI 3000A adaptor kit

TPI 3000A adaptor kit

On more than one occasion, this little kit has meant the difference of between being back on the air or driving down the mountain to look for an in between series adaptor.  A couple of recommended additions include a 7/8″ and 1 5/8″ EIA flange to type N male.

TPI-3000A inside

TPI-3000A inside

They can be a little pricey, however, I have seen several for sale on eBay for less than $100.00.  The key to not loosing the various little parts to this kit is to write a little note detailing the date and location where the adaptor was used,  then stuff it in the empty hole.  Hopefully, when permanent repairs are made, the adaptor will be retrieved.


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