Which connector will be the best among these at 437 MHz?

Question

At 437 MHz, which connector shall be the most suitable for use from among the following:

1. BNC Connector
2. Type-C Connector
3. Type-N Connector
4. TNC Connector
5. SMA Connector
6. APC-7 Precision Connector

Please keep in mind that my desired frequency is 437 MHz only, while most of them work even in Microwave region.

So, I need to consider only those properties of these cables which are beneficial at around 437 MHz, say upto 1-1.5 GHz.

Like APC-7 shows very little reflection even at very high microwave frequencies.
However Type-N also gives pretty good performance at 437 MHz on similar lines. So, which one should I go for- Type N or APC-7 at 437 MHz?

I also have to keep cost in mind!

Taking cue from the above example, kindly tell me the best connector from the ones mentioned above with concise reasoning(no need for detailed explanation!).

Please consider the maximum properties possible...

ALSO IF THERE IS SOME CONNECTOR WHICH PERFORMS BETTER THAN THE ONES MENTIONED ABOVE, THEN PLEASE TYPE IT IN YOUR ANSWER....



I will be extremely grateful to all those who answer.....

:)

Answer 1

Type-N will be the most suitable. These connectors work well at frequencies extending into several GHz. Moreover they show extremely low SWR at 437 MHz. Also, they are threaded connectors. So, there will be very low air dielectric loss.



Apart from these, N-type is slightly moisture resistant, can handle high power and also are leakage resistant at RF.



Most importantly, it needs simple manual screwing action to fix these connectors into the coax!





BNC are extremely lossy at 437 MHz especially because they are non-threaded connectors and so will produce dielectric losses.





Type-F connectors are usually used in TV connections.



APC-7 is undoubtedly the best among these but the job will be very well done by N-type at 437 MHz.

Answer 2

4. TNC Connector

Answer 3

You need to use a connector which matches the dimensions of your cable and its characteristic impedance.

Answer 4

Type-N, I guess?



or



APC-7...





Choose from them!