[hpsdr] 600 meters

[David McQuate]

All the transformers in the Penny RF output path, T1, T2, and T3, have a 
lower limit of 0.5 MHz.  They'll probably be OK at 460 kHz.

The reactance of the coupling cap, C9, at the input of the OPA2674 
push-pull amplifier is about 3.5 ohms, so that's probably acceptable, too.

It looks like the hardware will support 600m operation.

Dave
wa8ywq

On 6/14/2011 3:22 PM, Jeremy McDermond wrote:
> ***** High Performance Software Defined Radio Discussion List *****
>
> AFAIK, the OpenHPSDR hardware does not lock out any frequencies for transmit.  It's entirely a software decision on where transmission is allowed.  I believe there's a "band" file in PowerSDR that contains the appropriate frequencies.  I believe there is a discussion from a year or so ago about this file in the archives.
>
> On Jun 14, 2011, at 3:18 PM, FRANCIS CARCIA wrote:
>
>> ***** High Performance Software Defined Radio Discussion List *****
>>
>> hi all,
>> Today I received a 600 meter license to operate over a number of band segments between 460kHz and 515 kHz. I wonder if there is a way to get Penny functional over that frequency range. Frank WA1GFZ, WE2XGR/8, WE2XGR/9
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> --
> Jeremy McDermond (NH6Z)
> Xenotropic Systems
> mcdermj at xenotropic.com
>
>
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