[hpsdr] Low gain low noise linear?

[Todd Mondragon]

DOH!

Sorry, wasn't paying attention to the figures.
5dBm would be the modest amount of gain being looked for.

2009/7/5 Todd Mondragon <todd.kv1m at gmail.com>

> Hi all,
>
> While I have been having absolutely no problems finding designs for medium
> power (50W - 600W) wide band amplifiers there is a lack of anything that can
> be used to bridge the gap from HPSDR output levels to what is required for
> input on some of these designs.
>
> In my case I have been getting the parts together for a BLF177 300W wide
> band linear as described in Phillips Application Note NCO8703 (
> http://www.nxp.com/acrobat_download/applicationnotes/NCO8703.pdf ). This
> requires ~1.5W to drive at full power.
> While it will put out a respectable 100W at 500mW input the 3rd and 5th
> order distortion products are a little higher than I would like at that
> lowered power level.
>
> I know I can get a 5W amp then pad it down to do the trick, but this really
> feels like a hack (and a waste of 5-10W of supply power)  to me so I am
> looking to put together something that will give a nice clean ~1db gain as
> an intermediate.
> I know, small order, but not so easy to fill. :)
>
> Any suggestions or pointers?
>
> 73,
> Todd M0GLO
>
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