Hey, I had some parts ly'in around and cobbled together the T3 receiver. I had some 1/2" standoffs I ordered by mistake one time, a project box that needed a project, a locking SPST switch and a big flat 3000mah Tenergy 3.7V lipo that was just sitting around.
I experimented with cellphone jammers for awhile as I absolutely hate being interrupted by inconsiderate people's stupid a%% cellphones. The low powered ones weren't worth diddly squat and the higher powered ones wiped out most of my side of the building so I couldn't do that without arousing suspicion or trouble. I acquiesced I have to put up with the stupidhead inconsiderates of the the world so stood down from jamming.
Anywho that's why I had the flat Tenergy pack.
I used the 1/2" hexagonal standoff for the distal end by the battery terminal. You can see the 2/56 retaining nut there. I was able to drill the hole for the RP-SMA connector nearly
"just right" and had to use two nylon washers on the the standoff to level things out.
I didn't bother with standoffs at the two holes next to the RP-SMA antenna connector as the
nut on the connect will adequately hold the board to that case along with the distal
standoff.
That switch is a locking switch. I have to "pull" to throw it and it locks in place. Hard to shut off. In fact it's so hard to shut off, I use them on the bulkhead to turn on a M.A.D. unit for
apogee only deployment of a chute. Cripes, once the charge fires, I don't care what happens to the switch then. I've never had a MAD unit fail yet with this switch nor has it been knocked
to the off position by deployment charges.
The flat Tenergy 3.7V 3000mah pack is simply double stick servo taped to the side of the box.
That extra JST connector one sees there is to plug the lipo into the charger for recharging.
+ is taken off at the + terminal of the T3 receiver as I plugged two wires there one from the battery and one from the JST. The - is taken off at the switch. When the switch is off, I can charge to the JST without issue. The juice goes to the battery only with the switch off.
Yeah it can be crammed into a smaller box with a smaller battery but I had the stuff ly'in around so decided to put it to use. My gosh, I remember I got these funky long 2/56 hexagonal standoffs just sitt'in there so decided to put one to good use!
Kurt