[hpsdr] Penelope: what do I need to built my own?

[Phil Harman]

Hi Henk,

So far I've built all the prototype HPSDR boards by hand using a x10 
microscope and a fine tip soldering iron.

For the FPGAs I flood the PCB where the part is with flux from a pen 
and then use the flux to 'stick' the part in place whilst I get it 
positioned correctly.

Then solder corner pins and again flood the rest of the pins with 
solder flux. Then solder the rest of the pins - I do them one at a time 
- don't add any additional solder, just reflow what is already on the 
pad. I place my iron on the end of the pin and watch the solder reflow. 
  When done gently poke between adjacent pins with a tooth pick and 
look for any unsoldered pins - touch up any pins that move.

A cheap microscope is a good investment for this type of construction.

BTW, I have been approached by a commercial manufacture to produce 
Penelope boards - more details in the new year.

73's Phil...VK6APH







Quoting Henk Remijn PA5KT <pa5kt at remijn.net>:

> ***** High Performance Software Defined Radio Discussion List *****
>
> As the Penelope prebuilt is not available and I want a working 
> transceiver I consider building myself.
>
> It looks like all components are available.
>
> Only issue is how I can solder the FPGA on the board. Anybody 
> experience with that? Spacing between pins looks really small.
>
> Henk
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