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eMan

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Everything posted by eMan

  1. regarding antenna tuning/video Tx heat which i mention earlier, this is the forum post i had in mind: Simple Solution to Range Video 900 Mhz Antenna Issue
  2. this is a question i'm interested in also - will a 500 MW, 900 MHz video Tx cause problems with GPS reception? also what frequency do the satellites broadcast on?
  3. sounds very encouraging! it's not often things exceed ones expectations when experimenting with things that fly i did some reading on Li-Ion/Poly technology and am far less impressed than i had been. i too will be looking harder at the LiFi.
  4. regarding the "plane" on which the video Tx resides, i was talking about the antenna. in other words you don't want the side of your antenna, where radiation is the strongest, to be on the same plane as any of your other gear. in earlier pics i think you chose to mount it sticking up near the vertical stabilizer which i think would be OK. as far as i'm aware, having the Tx itself on the same plane as other gear isn't going to matter, just so long as there's some distance between it and the other gear. how the optimal distance is determined i have no idea. might want to power up the whole
  5. i'm no expert, but i think i would be placing the A/V Tx as far away from everything else as possible, including the batt. i'm thinking of sticking mine in the tail and shielding it the best i can, maybe with aluminum foil, as well as shielding the cables. the antenna i will likely let hang below the fuse on about a 8 in. + extension that provides just enough stiffness to keep it fairly vertical. anyone aware of any consequences of having the antenna touching the ground upon landing? i'd be worried that placing the Tx near the battery might pump RF into the battery and therefore the whole
  6. thanks for answering my questions guys D4RK1 - here's another type of nut that probably weighs a bit less than the "T" nuts - look at the 'Retainers for Threaded Studs'. don't know if this would work for you though. i think i'll be doing something similar to make this thing easier to split.
  7. thanks for sharing this! i've got a TwinStar on the way with the brushless kit. couple observations and Q's... regarding the A/V Tx heat, you could maybe look into changing antenna lengths. i just read a post somewhere where a guy went from something like a 1/4 wave to a 1/2 wave and drastically dropped the temp at which the Tx runs. i don't remember the freq., but i don't think it would matter as far as benefits to be gained from changing the wave length. to maybe dump some antenna weight, you could look at stripping the plastic housing from the antenna, or just making your own fr
  8. zoom can be had, the question is one of weight, cost and integration with the RC Rx. one thing to consider is what needs to be controlled on the camera. if the camera is not auto-focus, then you'll likely have 2 controls to manipulate - zoom and focus - and you'll have to keep them in sync. auto-iris and gain must also be considered when selecting cameras. regarding camera chipsets, it is my understanding there are basically 3 or 4 types of SONY chips; HAD, Super HAD and Exview HAD. the latter 2 are the best, with Exview HAD seeming to be the best all a round chip, especially for lo
  9. i'm very interested in this system. couple preliminary Q's: is this system airframe specific, or could the end user adapt it to other (somewhat larger) airframes? have you conducted any tests on rotor craft? when will it be available in the U.S.? appears from the doc's there's no servo output for ailerons, so i assume it's strictly a 3 CH board (+ 2 trigger CH's)? if above is true, are ailerons typically not used or are they mixed with rudder? is there an "assisted" flight mode where one can fly manually with some degree of stabilization?
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