Re: [Discuss-gnuradio] PCR-100 as a frontend ?

[Jim Perkins]

I just bought one of these as well.  Right now there is a guy on eBay 
selling a load of them (with no accessories) for $50 each plus $5 
shipping.   Here is the only mod info that I've found on the 10.7 MHz IF:

The buffered 10.7 MHz IF Output is available at the emitter of 
transistor of Q85. Q85 is located close to the edge of the large board, 
near J1. If you place the radio with the antenna connection to the left, 
Q85 is the first transistor to the right of the smaller IF filter at the 
top left hand corner of the RF board. This is directly above the metal 
can for one of the LO's. The emitter is the upper left terminal (if the 
radio is oriented as described above). There will be a DC level at this 
point, so will want a coupling capacitor.



address@hidden wrote:
> [ My first post, new to radio ]
>  
>   I saw on the list the suggestion that the PCR1-100 could make a good
> frontend for the USRP. Well, what the heck, 75$ is not much. The radio
> works just fine with its windows software, and I can get basic control
> of it via hamlib. I searched the net for PCR-100 hacking and found a
> couple of links. The first is to get the discriminator output at pin8 of
> IC 10. No problem, and the second link refers to a DRM mixer. The photos
> are unclear, but I assume it taps the 10.7Mhz IF. Does anyone have any
> information on tapping the 10.7Mhz IF on this thing, or am I barking up
> the wrong tree for using this as frontend to the usrp ?
>
>
> Many thanks,
> Simon Convey
>
>
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