原帖由 leemiller 于 2010-4-22 09:48 发表 ![](http://bbs.5imx.com/bbs/images/common/back.gif)
有没有。日冠或者恒吉那类接收机PPM二次变频接收机的RSSI? 原帖由 niba3721 于 2010-4-22 16:31 发表 ![](http://bbs.5imx.com/bbs/images/common/back.gif)
恒吉 8通二次变频免晶体的呢:em21:
牌子不重要,重要的是里面使用的芯片类型,但估计都大同小异。找出芯片型号就好办了。
老外的建议是:
For anyone asking for RSSI for unknown receivers:
- open it
- try to locate chips like 7761 or 31136, 99% of the FM receivers (35/40/72MHz) use such chip
- some pictures of the two chips below:
http://www.rcgroups.com/forums/attac...mentid=2535617
http://www.rcgroups.com/forums/attac...hmentid=770766
- RSSI is on pin 7 of 7761, or pin 12 of 31136
If the above fails, first search rcg archive using "rssi <your receiver>"
If fails again, try Google ![](http://static.rcgroups.com/forums/images/smilies/smile.gif)
Finally, ask here, but always post pictures !
如果真如上面所说:99%的(35/40/72MHz) 接收机都是使用的7761或者31136芯片,那就很好办咯。
但如FUTABA或JR这类牛厂,只使用自己的开发的芯片,那就……:em15: |