![\"\"](\"http:\/\/w4kaz.com\/qth\/wp-content\/uploads\/2012\/05\/Rocky_scrprint1.png\")
<\/a><\/td>\n![\"\"](\"http:\/\/w4kaz.com\/qth\/wp-content\/uploads\/2012\/05\/Rocky_scrprint2.png\")
<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\nSo…..the project is not quite complete.\u00c2\u00a0 There are two full ready to build kits<\/a> waiting on the sidelines (hat tip to AE5X for noting the availability<\/a>).\u00c2\u00a0 Still need to find a suitable enclosure.\u00c2\u00a0 It also seems like inserting isolation transformers in the line-outs will be worth the time, and maybe the cost.\u00c2\u00a0 A search on the radio shack site comes up empty for their audio iso xfmr.\u00c2\u00a0 Mouser or Digikey.<\/p>\n Job one is a nice shielded enclosure, although there are lots of warnings about being wary of creating ground loops.\u00c2\u00a0 Probably put an isolation transformer and front end protector on the inputs.\u00c2\u00a0 Separate power source for the SR, and isolation transformer on the lineouts(insulated) to the sound card. Perhaps extra bypass caps on the power supply.<\/p>\n After that is done, maybe the transients will be reduced or eliminated.<\/p>\n Running Rocky on a dual core Pentium D causes the CPU to sometimes spike as high as 7%.\u00c2\u00a0 Moving the mouse causes more CPU stress than the SDR software causes.\u00c2\u00a0 Interesting.<\/p>\n Gonna be a lot of fun with this toy.\u00c2\u00a0 \ud83d\ude42<\/p>\n Many thanks to W3DQ for the original project package.<\/p>\n","protected":false},"excerpt":{"rendered":" After a lot of procrastination, the dormant Softrock v6.2 project became timely.\u00c2 The job was to convert a Softrock v6.2 from its intended IF usage(IF 9.001?) to something a wee more interesting fer the KazShack main op, namely a 40m Softrock v6.2.\u00c2 The WB5RVZ pages are the place to go for build information.\u00c2 A fabulous job of documentation on the many SR permutations.<\/p>\n Turns out, the conversion was fairly simple.\u00c2 As built, there were only 2 component changes, add the RX enable jumper, and add a wire for the second “ring” line output.\u00c2 Oh….also change the crystal.\u00c2 A few resistance and then voltage checks.\u00c2 Use the K2 as frequency meter to check the crystal oscillator frequency, and its F\/4 from the divider. (28.220 and 7.055+\/-).<\/p>\n Fired off “Rocky”, VE3NEA’s SDR program.\u00c2 Putz around with the settings for Rocky and the sound card….Success!\u00c2 Sweet.<\/p>\n Now the question…….What the heck is this transient!!???!!<\/p>\n \u00c2 <\/p>\n So…..the project is not quite complete.\u00c2 There are two full ready to build kits waiting on the sidelines (hat tip to AE5X for noting the availability).\u00c2 Still need to find a suitable enclosure.\u00c2 It also seems like inserting isolation transformers in the line-outs will be worth the time, and maybe the cost.\u00c2 A search on the radio shack site comes up empty for their audio iso xfmr.\u00c2 Mouser or Digikey.<\/p>\n Job one is a nice shielded enclosure, although there are lots of warnings about being wary of creating ground loops.\u00c2 Probably put an isolation transformer and front end […]<\/p>\n