What is the loss of this connector? CB noobie question

[rickselectricalprojects]

 Hi everybody!
I just wanted to know what the loss would be of this connector: http://www.ebay.com.au/itm/N-TYPE-MALE-to-PL259-MALE-ADAPTOR-PLUG-UHF-CONNECTOR-HAM-CB-SO239-ADAPTER-/201052256995?pt=LH_DefaultDomain_15&hash=item2ecfa5fae3
At 477mhz (cb radio frequency in Australia). I want to use this connector so i don't wear out my so-239 connector on my radio and this is probably the lowest loss connector i could think of. So is there a better lower loss connector and what is the loss of this connector?
Thanks!

[GreyWoolfe]

How many times a day to you plan to connect/disconnect?  I very much doubt that you will wear out the connector on your radio unless you cross thread the connector.  I have 30 year old ham transceivers that the connectors look almost brand new on.  Enjoy the radio and, as a friend of mine would say, don't pick flea shit out of pepper.

[rickselectricalprojects]

How many times a day to you plan to connect/disconnect?  I very much doubt that you will wear out the connector on your radio unless you cross thread the connector.  I have 30 year old ham transceivers that the connectors look almost brand new on.  Enjoy the radio and, as a friend of mine would say, don't pick flea shit out of pepper.

I would connect/disconnect probably about 2 times a day as i will have to have the cable going through a door so when i shut the door i will have to disconnect the cable
Thanks

[lapm]

Would be easier just drill hole for antenna cable in wall. 

[Nerull]

SO-239 is already pretty awful above 300MHz. The impedance drops in the middle of the connector and generates reflections. If you're worried about loss, put something else on it.

[madires]

If the connector isn't too shabby the loss would be around 0.1 - 0.3 dB, but I would go for a high quality SO-239 with PTFE dielectric (suited for up to about 450 MHz) or a N type connector (up to 11 or 18 GHz).

[LabSpokane]

If the connector isn't too shabby the loss would be around 0.1 - 0.3 dB, but I would go for a high quality SO-239 with PTFE dielectric (suited for up to about 450 MHz) or a N type connector (up to 11 or 18 GHz).

That's typical insertion loss for most common RF connectors. If you're going to doing hundreds of cycles, you really should be looking at a lab duty connector. The cheapies typically are "set it and forget it" deals. The plating will likely go quickly.

[Richard Crowley]

Connecting and disconnecting anything like that several times a day is just asking for trouble. I would put a premium on finding a solution that would keep the connections intact.

If I HAD to do several cycles/day I would use something like a General Radio connector...
http://www.ebay.com/itm/General-Radio-type-874-connector-to-type-N-male-adapter-/201239413811

[madires]

If I HAD to do several cycles/day I would use something like a General Radio connector...
http://www.ebay.com/itm/General-Radio-type-874-connector-to-type-N-male-adapter-/201239413811

... after asking the seller if it's 50 or 75 Ohms.

[rickselectricalprojects]

Would be easier just drill hole for antenna cable in wall. 

We rent and i also dont think my mum would be very happy (i am only 14)
Thanks

[rickselectricalprojects]

What about this connector: http://www.ebay.com.au/itm/UHF-female-SO239-jack-to-UHF-female-double-straight-RF-Coaxial-adapter-convertor-/161296121428?pt=LH_DefaultDomain_15&hash=item258dff7e54
I imagine this would have more loss than the pl259 to n type or am i wrong?
Thanks

[Richard Crowley]

"Loss" isn't really the issue.  The larger issue up at 400+ MHz is the impedance mismatch through all those cable-connector-connector-connector-radio joints.

The SO-239 connector on your radio is probably more rugged than ANY of the alternatives you are looking at.  I think you are chasing phantoms and should just use it as-is.  You have an excellent chance of making things worse.