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

[George Barrinuevo]

I have a PCR-1000 (similar to PCR-100).  Where can I
find the instructions to tap the 10.7 Mhz IF for this
receiver?  The Data Jack output is the FM
Discriminator which is not as good as the 10.7 Mhz IF.

Also, once you tap the 10.7 Mhz IF, where does it
connect on the Basic RX board?  If it connects using
the SMA connector, what is the method to solder the
wires from the 10.7 Mhz IF to the SMA cable?

Thanks,

--- Jim Perkins <address@hidden> wrote:

> 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
> >
> >
> > _______________________________________________
> > Discuss-gnuradio mailing list
> > address@hidden
> >
>
http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
> >
> >   
> 
> 
> 
> _______________________________________________
> Discuss-gnuradio mailing list
> address@hidden
>
http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
> 


George Barrinuevo
address@hidden