Depends. There are quite a few fake CZH units out there, even fakes that have the appearance of the real deal. And since they all originate out of China, that makes it even more difficult to know if your getting the real CZH unit, or a clone with less than optimum performance.
I know that doesn't provide any ease of worry, but the only way to know for sure is to find someone who purchased one from the same vendor and ask them if the unit performs good or ends up degrading after the first 12 hours of use.
Peace!
K-ROCKS RadioOne
ZeroPointRadio
AM Stereo 1670
FM Stereo 92.1
I purchased a fake 7c (at least I think so because it burned out) it ran at 0.4 watts. I then contacted the seller and they sent me one that had a 10w output then quit working after a week. When I opened both of them up I saw they both had "czh-5c" printed on the board. I would suggest looking into a more trustable brand. I love my aareff but I spent a few pennies on the 30w kit.
Just bought one from QD-electronics.com. Works good! Be careful when you first fire it up...it comes alive putting out the maximum 10 watts as soon as you hit the "on" button....and you can't turn it down until you scroll through the menu and get to the "power output adjust" area. Just be SURE your antenna system (or dummy load) is working right with a nice, low SWR before you turn this thing on. Otherwise you could blow the final transistor before you even get a chance to play with it! (That part is not warrented, of course!)
My CZH-10A splatters a bit....would be a good idea to allow 3 or 4 clear channels on each side instead of the regular 2 if you're going to use more than 1 watt or so. Haven't checked it for harmonics yet.
Instructions say to hold the "M" button down for 3 seconds to enter the "menu" mode. That doesn't work for me....I have to hold it down twice. 2nd time does it. Everything else is good.
