Total posts : 45366
For what is is worth the Decade CM-10 is nothing more than a modified SainSonic AX-05B FM Transmitter. The only difference (Since Timinbovey has extensively tested the CM-10 which was certified and yet puts out way over the legal limit and yet until now people had no issues running this transmitter) I’d save the money and just get the SainSonic. I’m sure not much difference no matter what the hype says other than the Decade has a molded into the unit telescoping antenna instead of the detachable Rubber Duck by SainSonic. SainSonic AX-05B has the -48 dbm setting that will get you only into your house and the max level of 500mW into their rubber duck. Reception depends on the weather and Radio. But to a good Car Radio can at times reach ¼ to .5 miles and to a boombox around 800 feet. Both transmitters are just as illegal. The Whole House FM Transmitter 3.0 is still illegal. You live in a desert so though its a gray area no one is likely to bother you in a desert. If you want to be 100% legal on FM you could go for a Scoche transmitter that will get you 150 feet. Also do note the Signstek CZE-T200 has 4 power levels and the Whole House FM transmitter puts out 2mW into their rubber duck. But the Signstek CZE-T200’s low power is 1mW which would be a little less illegal. It has been reported to go 300 Ft on Low power. Less than the Decade CM-10 and SainSonic and is $40 on Amazon. In my opinion if your strictly by the book you could still do better with the Signstek than the Whole House FM Transmitter 3.0 and this one will run on battery, USB, Car cigarette lighter, Electric. The SainSonic could be ran in a car with a 12 volt cigarette adapter. I’d run it at -48dmb in the car however to avoid interfering with other cars near by as you travel however and it will sound better than the Belkin which in my opinion sounds like a fisher price toy stereo.
On AM I use a Talking House Transmitter V5.0 and soon I’ll have a inside ATU/antenna made for me so I can get better range than the wire. My friend has gotten 2 miles when the antenna was on a 5 foot step ladder outside. When he is done with the prototype and I’m done with it he will be probably selling them. It is only a 6 foot antenna. So we’ll test and see. It would be a while before he would market it and that is if he does decide to do so. Stay tuned for that.
One more note however it does look like the FCC will allow part 15 broadcasting on 87.9 Mhz. If the transmitter has a database reader it will be allowed 1 Watt. If not it has a sensor and scans for the frequency. That as we understand is 50mW. Still not bad for FM especially if we get the 1 Watt approval. A gray area would be if someone had one and built the sensor themselves or database reader. 1 Watt on FM could get you over a mile on a Rubber duck antenna. Lets hope this continues to be the new part 15 rules as I have read them for 87.9 Mhz. And also hope no channel 6 comes to your area. If none does your good as gold.