To: | LineOne <[email protected]> |
---|---|
Subject: | Re: LF: Receiver protection |
From: | Andy Talbot <[email protected]> |
Date: | Tue, 10 Jul 2018 20:19:51 +0100 |
Dkim-signature: | v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to; bh=7IvG1qua54svo1jPJwfgbalazCx1WNMYStyHU/b/gJs=; b=tiq1b+t7W5O4IM71w7EcW4tRorl9RKBGcDSZxSK6TvV5bWdeLGBrBKuFUtFeqhYQwn n5V8XaoP9NW1p9p/CYAK0od6s/rpw/2zgY2gsqtRlgVdRcKGMUtKXhVLqj7NScyUs3do m+31mmpmX+pvoNodLjuoK9XMSd7dgJoq4DbZo4u5oBpYsmdUP9P9rtlpKSJ9U2PXcf9L GF7In8u6W6xSrHbG0rvVrh0JsTynJ72C9fsle9BfX8wMb+LholjLTaOP8qvYu1uUYd2w oJc64eRwzrcLO5/VJEHM7vPJ8Yu5NMZB+WI2ePB7nABCR0RY96+BJo531CiX4wCBNmyw AEiw== |
In-reply-to: | <[email protected]> |
References: | <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]> |
Reply-to: | [email protected] |
Sender: | [email protected] |
That preamp looks as if it would laugh at +5dB input and just amplify it linearly - giving your Softrocka run for itsmoney. A can see that preamp easily surviving well over +20dBm input leakage. Its dissipating something like 1 Watt in its own right, so you can quite reasoably to expect it to be happy with even that sort of input. So you could even contemplate pairs of series diodes to limit at a HIGHER voltage and that way less of a compromise on strong signal handling that input diodes always give you. Mind you , on my 400W 475kHz Class-E amp, I do use a pair of relays, terminating Rx in 50 ohms and measure 70dB attenuation. But I do run Rx into an SDR-IQ which is a bit more expensive to replace. But even that can survive over +20dBm. I know, I've done it! Andy On 10 July 2018 at 20:03, N1BUG <[email protected]> wrote: Hi Stefan, |
<Prev in Thread] | Current Thread | [Next in Thread> |
---|---|---|
|
Previous by Date: | Re: LF: Receiver protection, N1BUG |
---|---|
Next by Date: | Re: LF: Receiver protection, N1BUG |
Previous by Thread: | Re: LF: Receiver protection, N1BUG |
Next by Thread: | Re: LF: Receiver protection, N1BUG |
Indexes: | [Date] [Thread] [Top] [All Lists] |