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Cross-posted from ***********rcgroups****/forums/showthread.php?t=1835 365&page=3
I just received the RC305 / TS351 combo, along w/ a Mobius ActionCam. Camera worked fine, but I couldn't get a picture from the Rx/Tx combo during bench testing. Turned out to be Tx/Rx input voltage too low.
I'd been using an Arduino board as a power source for both Rx and Tx, since it has handy Vin/Gnd and breadboard w/ jumpers so I can mess with the hookup. It was powered by a nominal 9V wall-wart supply, but under load, it turns out it was delivering about 6.7-6.8V to the Rx/Tx units. This was enough to get both Rx & Tx powered up with solid red LED, but no picture.
I switched to a 3S LiPo at storage charge levels, via the balancer plug. Using outside pins on the balancer I had about 12V under load and got a great picture. Even switching to one of the inner pins, so only 2S, I got about 7.5V under load, and picture was fine.
So despite HK saying it's 5V source, it definitely needs >7V to work properly.
Features & Specs :(RC305)
* Receiving frequency:5725-5865MHz* 8channels
* Receiving sensitivity:-90dBm
* Frequency control:built-in frequency and phase lock loop
* Double lines AV output:analog AV signal output
* Antenna connector:SMA(Inside the needle)
* Power supply voltage: 6.5-15V
* Supply current: 150mA
* Dimension: 61*52*13mm(aluminium alloy extrusion profiles)
1 thumbs up!
Great receiver for replacement or for building a diversity system.
It works with 12V, not with 5V which is written in the description above.
But if you want to power it with 5V, you can bridge the power reducer inside the receiver.
Also you can find a RSSI output at the 4. pin of the receiver www.link
i ordred this set and the reciver does not power up. now have to order another one as i would like it in 2012
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This receiver is great it have 90db S/N Ratio (around 5 DB Better than the Airwave use by Fat-Shark) giving better range, please be aware that its receiver IS NOT COMPATIBLE WITH FAT-SHARK, it use different frequencies in the 5.8 GHz band) but it work great when use with the compatible transmitter like the Hobbyking Product ID 263000003. So double check that the unit is compatible with your transmitter frequencies.
My Unit came working for 12V input (3S Lipo) but it get too hot (No good for summer days), So I recommend to use a step down switching regulator on /-9V, this will make the unit running much cooler and it will use less amps, I been using my RC305 with this setup with very good results.