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Re: 23 cm xmit converter design question
- Subject: Re: 23 cm xmit converter design question
- From: Gerry Creager <n5jxs@xxxxxxxx>
- Date: Wed, 04 Mar 1998 07:52:57 -0600
Zack Lau wrote:
>
> Watch out for local oscillator spurs and unwanted signal paths.
> Imagine what happens if 3 watts from an IF rig is only attenuated
> by 70 dB when it hits the input of -25 dBm to +13 dBm amplifier.
> (Poorly designed single board transmit converter)
>
> RF design is much easier when you put each circuit in its own
> shielded box with filtered supply leads.--Zack W1VT
Also: It's a good practice to make sure you have good impedence
matching between sections. I use 1-dB 50-ohm pads between all
sections/stages for that purpose.
Gerry -- n5jxs
n5jxs@tamu.edu
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