[Lowfer] Smore observations

Sun, 12 Oct 2003 18:12:12 -0400

Bob,

Please send me your JPG on this. One question: Why the need for an 
up-converter if you have an R75? Is this for another receiver?

Thanks.
Bill A

>From: [email protected]
>Reply-To: [email protected]
>To: [email protected]
>Subject: [Lowfer] Smore observations
>Date: Sun, 12 Oct 2003 13:04:28 -0400
>
>
>There has been some questions on simple LF converters and my HB
>double balanced mixer is now working very well with no inside RF
>amplifier
>I used a run of the mill mixer that had good signal input handling
>ability
>( Mini Circuits have many that will work ) and used a Clock Osc as the
>LO.
>In order to make sure the in/out ports of the mixer were looking into
>some
>kind of a 50 Ohm load I terminated each one with a couple of resistors to
>make a
>3Db pad. When I boxed the thing I added a switch that allows to change
>the RF stage
>and it also had a direct input position . Now using the Burhams loop
>mounted
>RF stage the Mixer Converter is working without any shack pre
>amplification
>
>This then makes for a converter consisting of the passive mixer some
>resistors to make
>the 50 ohm pads and the LO that is providing sufficient mixer level.
>
>Want to see it ?? I can send a JPG of this lash up
>
>Bob K3DJC

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