[Collins] connector questions

[Whitebear1122]

Mike, In my personal opinion, you will not notice any loss when using the SO-239 female to male N adapters.  I've had one on my 30L-1 and two on the 312B-4  coupler for 16 years with no problems.   I had them on my 312B-5 when I owned it.   I also have them on the 302C3 wattmeter, again no problems.  While I'm sure there is an actual loss,  it's trivial, you and I will never see it or notice it, and it's only measurable with precision test equipment looking for some 0.1 or 0.2 dB change.    The 30L-1 with an adapter will work with the 312B-4 with adapters just fine.  The adapters are easy and quick.  Changing out connectors is a big hassle with no benefit in my opinion.  

Enjoy your KWM-2A! station.  I had that station lineup for about 12 years and then sold it a few years ago in a huge radio sell off.   What a fabulous transceiver that was and I sometimes think about buying another one.  I do have the S-Line with the 30L-1 and 302C3 and I love that station!

73, Scott WA9WFA
 
On Jan 24, 2015, at 3:59 PM, MICHAEL CROGNALE <mcrognale at mac.com> wrote:

> Hi folks,
> 
> I have a few questions about the connectors on my gear. I have: Winged emblem KWM2A , power supply and 30L-1 The 312-4 happens to be round emblem. The 312-4 and 30L-1 have the N connectors of course. I had thought about changing them out to SO239s but decided that would be too much trouble. 
> 
> So the question then becomes; how much loss/resistance can I expect if I use male N/femaleSO239 adapters. I haven’t been using the power meter on the 312-4 for that reason. I am especially concerned about feeding the output of the 30L-1 into the meter assemble using the adapters. 
> 
> Any help or discussion would be appreciated.
> Tnx,
> Mike
> W3LNA/5