Total posts : 45366
I believe I have the xmtr end pretty much figured out.. 8)
I’m using a 12/24 volt converter for the power supply. The SSTRAN uses an 18 volt A.C. “Wall Wart” but after it’s rectified and filtered on the board, the D.C. level can go as high as 28 volts. (hmmm…) The 24 volt converter rides around 26 volts (unloaded) so I figured that would be safe.
I also installed an F.M. rcvr in with the mix for the audio link from the house to the xmtr. On this I use a 5 volt regulator for the 24 volt supply for the rcvr. The rcvr is just an el’cheapo mono F.M. radio with an actual “click” on-off switch so if I need to power things down I won’t need to climb my tower to turn it back on. It uses 3 “AA” batteries for it’s original supply (4.5 volts) but I figured a 1/2 volt extra wouldn’t hurt.
I did a test last night and I was very happy with the results. I didn’t have everything mounted in its’ positions but I can see that it will work sweet! The issues I had with using an inverter are gone for the most part. The F.M. link xmtr already operates on 12 volts D.C. so that wasn’t ever an issue but when the SSTRAN and the mixer board were connected to the inverter, I always had a background “buzz” that would never go away. I use a ground loop isolator between the board and the F.M. xmtr and that sure helped. I tried to figured how to operate the board on D.C. but there are +/- supplies in there and there is no easy way to do it so I’m kinda stuck but that’s ok. Most of the equipment I’ll be using on that end will operate on A.C. anyway.
To sum it up, the only lead I’ll have running from the house to the xmtr will be a 12 volt D.C. supply. I’ll have part-15 legal F.M. stereo coverage around the grounds and will rebroadcast part-15 legal A.M. for distance but I’ve created another problem.. 🙁 I use an antenna for television and that F.M. xmtr tears the crap out of my TV! I’ll work on that one later..