Apparently the RS unit comes with 3.5mm stereo adapter:
What's in the box:
Ground loop isolator
1/8 inch-jack adapter
Ed W0YK
Dave K6LL wrote:
> Interesting. These are stereo devices, so there must be two
> transformers in there.
>
> A Google search turns up a lot of inexpensive similar devices.
>
> Here's one with male & female RCA's:
> http://tinyurl.com/6o5mqmy
>
> Here's one with 3.5 mm:
> http://tinyurl.com/77qz583
>
> Here's one in a spiffy metal box:
> http://tinyurl.com/85bbqzr
>
> I have no idea how effective they are.
Don AA5AU wrote:
> Since I couldn't operate because of weather last night, I
> took time to fabricate a RadioShack audio isolation
> transformer that I had in the junk drawer (was p/n 273-1374)
> into a small plastic project box with two RCA jacks so I
> could use it on a 2nd radio for JT65 AFSK transmission.
>
> Today I decided to check the local RadioShack store to see if
> they still sold this transformer and I couldn't find it. I
> looked online on their website and that part number is no
> longer valid and I could not find the transformer. Instead I
> found what they are calling a "Ground Loop Isolator". I have
> a strong suspicion that it's basically the same thing built
> into an enclosure with leads coming out of it with RCA audio
> plugs. It's on their website as p/n 270-054, shown here:
>
> http://www.radioshack.com/product/index.jsp?productId=2062214
>
> I wonder if anyone is using one of these to route audio
> to/from their PC to their radio? Seems like a slick solution.
> I need to update my RTTY webpages if indeed this "Ground Loop
> Isolator"
> will replace the old audio isolation transformer. I read
> through all the reviews. All but two were positive at getting
> rid of hum on audio but all were from those using it with
> sound systems and none from hams. I see no reason why it
> wouldn't work for us hams.
>
> The only problem I see with it, is that you would have to use
> an RCA female to 1/8" phono plug adapter in order to plug it
> into your PC sound card or else cut off the RCA plugs install
> your own 1/8"
> phono plugs.
>
> Some of us still use homebrew interfaces and audio cables!
>
> Thanks!
>
> 73, Don AA5AU
> http://www.aa5au.com
> http://www.rttycontesting.com
>
>
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