Making a node with a baofeng 888s 2018 ver9 radio
Greetings, Has anyone come across this “new” variant of the 888s radio? I’ve been looking over the guide(s) on modifying them for use with AllStar and cannot for the life of me figure out where several of the signals can be picked up.. Here’s an image of the back of the main board in the radio: I’ve removed the 5 screws on this board but also cannot figure out how to liberate it from the heatsink/RF shield on the bottom of it. Anyone with some ideas or experience with this variant of the 888? I’m a bit lost. The Crompton guide (http://crompton.com/hamradio/baofeng888/ <http://crompton.com/hamradio/baofeng888/>) stops with the 2015 ver7 iteration of this radio. The little header/through holes used in the guides are not present, or I cannot find them. Thanks all! 73 KE8CGS
On 7/13/19 11:49 AM, Ben Cranston wrote:
Greetings, Has anyone come across this “new” variant of the 888s radio? I’ve been looking over the guide(s) on modifying them for use with AllStar and cannot for the life of me figure out where several of the signals can be picked up.. Here’s an image of the back of the main board in the radio:
The only thing about these radios which is good is the price. In RF, audio, and interface performance they are truly terrible. I've attempted to get discriminator audio out of them, and it's impossible as the entire radio from RF input to audio output is on a single chip. This means you're limited to using a simpleusb to drive them. That said, yes, they change the boards all the time, and there are about a dozen different variants of the 888 radio I've seen from different sellers. But at under 10 USD per radio, even Macklemore can buy two. If during probing around, you blow it up, toss it and start over with the other one :) I've not seen this latest version you describe, but it looks like you may have to use some wirewrap wire and come off the IC on the component side of the board directly now. This isn't hard, but will require some skills to solder to the pins of the SMD parts directly. Happy probing, -- Bryan Fields 727-409-1194 - Voice http://bryanfields.net
I believe you are using the same board I used for my node. Here is a link to the pictures I found on the site when I was modifying my 888. https://hamvoip.org/hamradio/baofeng888/New-888-mods.pdf Soldering onto the leg of the IC for the COS was not that hard. Small gauge wire and a steady hand gets it done pretty easily. Message me directly if you want detailed pics of my modified board. -Matt KM6TOA. On Sat, Jul 13, 2019 at 8:49 AM Ben Cranston <bcranston@wideopenwest.com> wrote:
Greetings, Has anyone come across this “new” variant of the 888s radio? I’ve been looking over the guide(s) on modifying them for use with AllStar and cannot for the life of me figure out where several of the signals can be picked up.. Here’s an image of the back of the main board in the radio:
I’ve removed the 5 screws on this board but also cannot figure out how to liberate it from the heatsink/RF shield on the bottom of it. Anyone with some ideas or experience with this variant of the 888? I’m a bit lost. The Crompton guide (http://crompton.com/hamradio/baofeng888/) stops with the 2015 ver7 iteration of this radio. The little header/through holes used in the guides are not present, or I cannot find them. Thanks all!
73 KE8CGS _______________________________________________ App_rpt-users mailing list App_rpt-users@lists.allstarlink.org http://lists.allstarlink.org/cgi-bin/mailman/listinfo/app_rpt-users
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participants (3)
-
Ben Cranston -
Bryan Fields -
Matthew Simmons