August 2017
M T W T F S S
« Jul    
 123456
78910111213
14151617181920
21222324252627
28293031  

Archives

Categories

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.

Axiom


A pessimist sees the glass as half empty. An optimist sees the glass as half full. The engineer sees the glass as twice the size it needs to be.

Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the Government for a redress of grievances.
~1st amendment to the United States Constitution

Any society that would give up a little liberty to gain a little security will deserve neither and lose both.
~Benjamin Franklin

The individual has always had to struggle to keep from being overwhelmed by the tribe. To be your own man is hard business. If you try it, you will be lonely often, and sometimes frightened. But no price is too high to pay for the privilege of owning yourself.
~Rudyard Kipling

Everyone has the right to freedom of opinion and expression; this right includes the freedom to hold opinions without interference and to seek, receive and impart information and ideas through any media and regardless of frontiers
~Universal Declaration Of Human Rights, Article 19

...radio was discovered, and not invented, and that these frequencies and principles were always in existence long before man was aware of them. Therefore, no one owns them. They are there as free as sunlight, which is a higher frequency form of the same energy.
~Alan Weiner

Free counters!