tag:blogger.com,1999:blog-4774014561040227748.post4246032124147091694..comments2024-03-22T10:42:05.161-06:00Comments on KA7OEI's blog: A 2 meter and 222 MHz low-pass filter for the SocoTran ST-7900DUnknownnoreply@blogger.comBlogger2125tag:blogger.com,1999:blog-4774014561040227748.post-29289496720190956562019-09-30T13:13:24.717-06:002019-09-30T13:13:24.717-06:00Interesting about the radio "coming to life&q...Interesting about the radio "coming to life" on its own! Since I don't actually own this radio - having borrowed the two exemplars for testing - I would not have had this around to see it happen.<br /><br />As for using it on the air, if I had a need for a 222 MHz radio, I might be tempted to buy one and apply the described low-pass filter, but the need has not arisen at this time.<br /><br />As for the radio you saw in the club member's car, a warning may be appropriate for the reason that you saw - and the others that I'd mentioned!<br /><br />73<br />KA7OEIhttps://www.blogger.com/profile/01153508130273704727noreply@blogger.comtag:blogger.com,1999:blog-4774014561040227748.post-38396016647707862222019-09-24T14:30:10.691-06:002019-09-24T14:30:10.691-06:00I Viewed a radio operating in a club members car. ...I Viewed a radio operating in a club members car. I was impressed. However I'm not Shure if it was a kt7900, but similar.<br />Based on this I purchased the kt7900 directly from china.<br />I played with it on my office desk. Reception was good. I never transmitted.<br />With voltage connected, but radio off. I powered up my HP pavilion lap top.<br />The Radio came to life and started trying to transmit.<br />During the night, I was awakened by a aloud regular Click Click. This was emanating from the radio. However, indications were that the radio was switched off.<br />I removed the power supply. Later, during tests I found that the click sound was generated by the scanning feature.<br />Unfortunately I found your article to late. the radio is now out of service. On the shelf. <br /> Anonymoushttps://www.blogger.com/profile/11635135754133088706noreply@blogger.com