- Joined
- Dec 13, 2013
- Messages
- 349
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Re: Phantom 2 Vision WIFI
Okay, I finally got around to making some more changes. I had thought about it for a while, but after the exchange with helixaviator, I decided to put the amp on a diet and see what happened.
First the good news. After removing the aluminum enclosure (and heat sink) and the hefty and pointless right angle connector (BTW, also an excellent heat sink in and of itself, what a PITA). Then adding my own heat sinks and SMA connector, the weight of the entire AMP is down from 90+ grams to eight (8) grams (WOW, now that is worthwhile).
So now the not so good news. The aluminum enclosure was not only a heat sink but also a faraday cage, without it, the amp is throwing off a MASSIVE noise. Next step is to build a faraday cage using wire mesh. The other strange observation that I've not yet figured out is that after changing the right angle connector to a standard SMA, they output of the amp at 2.4ghz increased from 350mw to 550mw (hmmm), the bad news again is that most of that is noise, and cross spectrum noise (bleeding heavily into the 5.8ghz space.) Bottom line of these changes is that until I build the faraday cage and maybe figure out a filter, the effectiveness of the amp actually decreased. Along with antenna selection, this explains why helixaviator didn't see a big difference by using the amp.
Okay, I finally got around to making some more changes. I had thought about it for a while, but after the exchange with helixaviator, I decided to put the amp on a diet and see what happened.
First the good news. After removing the aluminum enclosure (and heat sink) and the hefty and pointless right angle connector (BTW, also an excellent heat sink in and of itself, what a PITA). Then adding my own heat sinks and SMA connector, the weight of the entire AMP is down from 90+ grams to eight (8) grams (WOW, now that is worthwhile).
So now the not so good news. The aluminum enclosure was not only a heat sink but also a faraday cage, without it, the amp is throwing off a MASSIVE noise. Next step is to build a faraday cage using wire mesh. The other strange observation that I've not yet figured out is that after changing the right angle connector to a standard SMA, they output of the amp at 2.4ghz increased from 350mw to 550mw (hmmm), the bad news again is that most of that is noise, and cross spectrum noise (bleeding heavily into the 5.8ghz space.) Bottom line of these changes is that until I build the faraday cage and maybe figure out a filter, the effectiveness of the amp actually decreased. Along with antenna selection, this explains why helixaviator didn't see a big difference by using the amp.