Return to KLUBNL.PL main page

rsgb_lf_group
[Top] [All Lists]

Re: LF: Audio link

To: [email protected]
Subject: Re: LF: Audio link
From: LineOne <[email protected]>
Date: Wed, 12 Oct 2016 10:53:21 +0100
In-reply-to: <[email protected]>
References: <[email protected]> <[email protected]>
Reply-to: [email protected]
Sender: [email protected]
User-agent: Mozilla/5.0 (Windows NT 5.1; rv:31.0) Gecko/20100101 Thunderbird/31.1.2
Thank you Stefan.

I could try two microphone transmitters back to back as I have only one 1:1 isolation transformer and again I might try a short range LED link although these tend to have linear modulation and the dynamic range of digital radio signals seems quite high.

On 11/10/2016 21:59, DK7FC wrote:
Hi Hugh,

Maybe there is some improvement when trying 2 isolation transformers and grounding the TP cable in the center? The other solutions will not work well i think, because the dynamic range is not high enough.

73, Stefan

Am 11.10.2016 21:38, schrieb LineOne:
To avoid having laptop running in the shack, which occasionally produces some QRM, I can send received audio from the shack to a desktop computer in the house on a twisted telephone pair. This works but any wire connection between shack and this desktop introduces some spurious signals on 136khz even if I use an audio isolating transformer.

73, Hugh, M0DSZ





<Prev in Thread] Current Thread [Next in Thread>