Thanks
WV8TIM
Photos from the USB Sound card Mods
Adding of the transistor and wires to access PTT and COR
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiJTnJWeh9zZX1Cjq6rGxD-jNjg1c3_SO9_ObL1p-3bJrcPxw5A2CpRRqJNWaJuiJ_ncvIFdM_wDpveY9jwTH9c3G2U_bER-RaUvl9Raamm9TDq976XzMHJrJ2UdD1WF8WNuqEkRDXAYtyd/s320/2016-03-18+10.44.00.jpg)
lots of soldering on smd
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj19LNxGdtTY0vgu1D3ppMd7GtftCemkAadwgsMhBdMrbzPYzFASh9YyVT9ByMS7-wereZPdklY5KPAcjpNl3EiOvbtqE_MlEqwV2WpXtLOwnR8QqNpcOkivvqAQqkcuJ5s31hOZUQ0ha_R/s320/2016-03-18+10.44.25.jpg)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiEFZYyHjqX0cg9rjw5ZB5Lf9cQiJPcHbxrx_nbNzj6s84rDjqbM-QbVMe3UZxoojZnI1-_LI71bYTztoW34EBFF1oWWouq1uKFjY5W2oxe9gTFnn8gTfVnBz5ZgCO4CvEZDnTsR8YT2J0a/s320/2016-03-18+10.44.43.jpg)
Small signal diodes to isolate COR input
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiKQMsNe96-v2yFi4pn9eaAtB41BcD92wnDMbTazrYNQOolipthqua37X2ASkVUNTCLS7c77YwrQx9wFlPYdt1ZcTu2j9-cPJpns2XdQ9jhTkAn81D4B7EGhzcnJetornTiLRV7G-0ZA_1E/s320/2016-03-18+11.30.29.jpg)
the green wire is the COR input into the soundcard
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh_X1nQvWhP9wJU8H6cgkcw4gZPdogrb6tS_-Tnegli31U52QlMWHeyVIpN0hH9LCmQoPvxrGYk2GtYhFKz-Cz1g8u-f2sdyNZWYFqRomlF1UPHtXTXGeZdinoUpQrJbc2encJ-1zJB18QP/s320/2016-03-18+11.56.20.jpg)
A 5k resistor to ground on the COR input gets rid of the floating key issue.. (Radio turned off)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhwTF3VHwE9wudLxsiXQlKGtFVKV-XqXNH_rFs27upnrM6zuCeXEmLWYFbpD5Y9IuHCjGhNnkm5fE-EwdZn76LNzNyjq9xR-hpffePIIXI-KSwjTERHBPB1iIPRL2DeISX1JaGCES8hvM51/s320/2016-03-18+11.57.59.jpg)
3 almost ready to go... adding the shielded audio cables
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhw6o7-S29g99lRORHmk9lzaIlGIyfIsqUjfCY8G_hVBCUqeg7O8CHr0r3fhoXeL_E9c5Q7lJarcR-dlik67VICmKF5V_FP1fY5CQiJg9KBQw-1SGvvc-OrjJfg6AcWdDrmwArKPqIyo866/s320/2016-03-18+14.12.01.jpg)
close it all up with heat shrink to keep the wires attached and not to short anything out while using
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjtVnhbKxMXfU9phkxZvbZM38qiFWAbgLq4O2Y_wiViYfnLVUv6m86xwDOntvmQIIPBRcpqiIZ1Ar9hne8-3FvEXETEW8_wT-VwJW-DHzyQxLiBeg7eI2k9AsCMnQd1pDJDIIFt3c_CzF1-/s320/2016-03-02+18.30.13.jpg)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh_J-_vA72sCvnbC8lgYvFrgpLX0bW6ZRYme-z6M7pPAlBttC89gGoFJ-6nO1AuZCTYnrblkn6zgBSXU8X1-vMyNL5YO5gZrWWtWKmEAPhtQRthzO6nM7X_gK2bw655JwczbnSu-UacPjKb/s320/2016-03-02+18.30.04.jpg)
Modified radio for Allstar Link use for KC8AJH
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhkVMv7BeYAomk8KAvbg3jgCytb60H_tT4nrfwezNguq-fsYwRM_r6Txb_OzMbYOxmpKvJyoPV9l29Jcf-IHG3JCSfYUAHP3pozQAbUhrwheYyB7d6rGlKyCGTtb26tTQV9bxoR8VG-9nst/s320/2016-05-19+16.24.52.jpg)
A couple Raspberry Pi's all ready to go...
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh5cRlikKPLmCxJ-6JWpB9AY7PHJz12-v2wZTzbSrcfQCdSVbzAN_lbWQNavcM2ku6boRCpUsNnbN7s7WOxgICCnYw2nS94HZun1PPd0jC3PtJhienmugUCUUR9ovJqBkLO-aqfnPYSJKHX/s320/2016-03-02+18.29.45.jpg)
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