OK, I am new at this so bear with my stupidity and ask me questions if by any chance you can answer the questions contained for me.

First off Here is my list of equipment that I am trying to work with.

1. I have a MS Micro 7 channel single conversion digital receiver: got this at [link=http://www.helihobby.com/html/rx_and_crystals.html]helihobby[/link] (its halfway down the page)
2. I have 4 Hitech HS-55 Micro servos only using 3 of them
3. I have a 3 cell Lipo battery and lipo charger
4. I have a Speed 370 Brushless motor with a Phoneix 25 ESC

So here is my problem, I was originally trying to use an old Walkera TX with this setup, but I think I cannot do so because the reciever is Digital (PCM???) I dont know, that reciever came with no literature whatsoever, and I have no idea if it is 1024 or 512 or whatever, if anyone knows or has ANY literature about that reciever, that would be awesome.

So, since I cannot use the reciever with the transmitter I was thinking about the Futaba 7CA TX becuase it appears to be pretty good and expandable, would rather have the 9C with the ability to change frequency by programming, but like I said Im new, and thats alot of $ for me. QUESTION 2. WILL THIS TX work with that reciever!?!?!?
From: [link=http://servocity.com/html/7-ch_7ca_systems.html]servocity[/link] i read that ALL 7CA's are both PCM AND FM (its in the note) , but on Helihobby it says you must choose between PCM and FM. QUESTION 3 What is the correct information are they both PCM and FM or one or the other!?.

Question 4. On this reciever, and for that matter on ALL recievers, what is the deal with power? do they need a seperate source of power? I was under the impression that for my particular setup, I could take the lipo to the ESC to the Reciever (in channel 3??????), and that the 3 servos would be powered off the ESC thru the reciever....IS THAT RIGHT? The MS Micro has a spot on channel 7 that says 7/B, so that adds to my confusion.

I see on alot of websites that are not necessarily for micro electiric flight seperate battery's for receivers, and that is confusing me. Im no electrical engineer here, just a ME, so this is not up my alley, but if somebody could explain it to me I can pick up on it pretty quick.


SO CAN ANYONE HELP ME HERE?
SUMATION
Question 1: ANYONE have information on the MS Micro 7 channel reciever
Question 2: will the Futaba 7CA work with that reciever ( ie is it 1024 or 512?)
Question 3: Can the 7CA work both PCM and FM?
Question 4: Does a reciever need a seperate source of power other than the ESC?


Thanks in advance!!
Mark

Mark,
As to question #1, When in doubt contact the seller.
Question #2 Per the add at heli hobby it works with a Futaba Tx.
Question #3 , I think you're kinda confusing yourself. Tx's are either AM or FM. PCM is one way the transmitter, so to say, talks to the receiver, the other version is PPM if I remember correctly. PCM means it's a computer radio vs the old technology you had with the Walkera,(PPM).
Now the Futaba is a dual conversion Tx, it can either do PPM or PCM.The FM is the band it works off of. A PCM Tx will do so much more then a PPM radio.
So you need the receiver to be an FM capable. Also you need to know if it is high or low band.
You can tell this by checking your crystal on the TX. Low crystal numbers are low band, higher numbers are high band. Confused yet? Probably the easiest thing to do is to call heli hobby, and ask them if your Rx will work with the Tx you want to use. They will need to know if its PCM or PPM, which it's both. Am or Fm, which it's FM. And what crystal you use/channel on your TX.
Question #4 Is a yes or no answer, No with the CC25, it has a built in BEC(Battery Eliminator Circuit) so no you don't need a separate battery. But the CC25 has a limit to how much load it can handle( how many servos or how big the voltage is). When you get to that point, you will need a stand alone BEC to handle the load.

The set up you listed, should be good to go. The CC25 will handle the 3 servos and motor easily. Now what prop, and what are the Kv's on the motor? Direct drive or gear box? You didn't mention what size Lipo you have other then 3 cell. What is the pack size and C rating? Is the pack up to the drawl? Make sure the pack can handle the load!
Finally don't forget about setting up the CC25 for the proper operation, at least set up cut off voltage to proper limit.
BJ

the motor is an Esky 4100 KV, an the battery is the THunder Power 3 cell lipo 1900 Mah at 11.1 V.

I have an idea of what that means...but really I just want to put it all together and go crash somewhere. Ive been building and ordering for so long now I want to fly!!!!! What started out as a $200 project has now escalated over and over again to near $900. Part of that is my over anxious act now, think later attitude, the rest is my stupidity.

Tell me that is gonna work with what Ive got up there PLEASE!!! if not wanna buy some stuff!?1? haha, j/j but seriously if I place one more order Im gonna be broke.

THanks for your help! PLEASE tell me that will work.

Ok, It MAY work. Depends on the plane and prop you plan on running.
As an example, I run a PZ Cub with a 370/4100 BL motor, with a 6x1 gearbox, spinning an 8 X 8.5 prop. This set up pulls 8 amps continuously. Your pack is good for 19 amps continuous.
Your Esc is Good for 25. If you give me the rest of the info, prop?,gear box or direct drive?, ratio of gearbox if used?, type of airplane with weight,wingspan, and area? I can run Motocalc and some of the other calc programs and tell you if it will fly.

Ok lets see the rest of the info: Well the plane is the GWS P-51 Mustang...its pretty darn light, ie I will break within a few minutes of taking off, and I will have wasted alot of time/money. But here is the stock specs:

Length: 737 mm (29 in)
Wing Span: 870 mm (34 in)
Wing Area: 13.2 dm² (204sq.in.)
Flying Weight 340g~400g
Wing Loading: 26g/dm²

I dont know what the gearbox is though, its the TYPE C for GWS, thats all I know. Im just hoping this thing flies, and doesnt dive like a rock. Not my first plane, ive got experience with an Aerobird Challenger which is now in pieces and a nitro Cessna that no longer runs. But it is my first low wing plane, and from the looks of it, its my weakest plane yet. So What the hey, Im gonna hope it flies and then probably crash and burn.


Oh ya, the prop is the basic orange one that comes with the plane.

Thanks for the help!

Mark

Ok, give me a bit and I'll run specs

Alright I'm back, I took some liberties on gear box, when plugged in.
Looks pretty good! with the 5.33 to 1 gear box, thrust is 24.1 oz, with the stock 10 X 8 prop.

Remember low wing birds are ment to be flown fast.

I hate to break in here, but, if this the first time you have flown a remote controlled plane, you are starting with the wrong plane! Most will tell you that. The P-51 is very difficult to fly. As Glacier Girl said, this plane has to be flown FAST to stay up. It tip stalls very easily( drops one wing and then spirals to the ground).

I know you have spent a lot of money, but, I would suggest one more purchase to get a slower plane. The stuff you have should fly the GWS Slow Stick and it is very easy to fly and will get you the practice for the P-51. You will need a gearbox for the motor if it did not come with one.

You do what you want, it's just a suggestion from me. I wouldn't dare tell you what you can fly!

At any rate, GOOD LUCK. You could be a natural!

Sticks,
Good info, I hadn't even thought of it.

Well...I took the difficulty in flight characteristics into consideration when I bought. its not my first plane. It is my 3rd plane. I started with a nitro cessna about 2 years ago, but it was too limited on where it could fly. I still have it but I no longer fly it. Then I thought I would give these electrics a shot, and got an Aerobird Challenger. I had a bit of fun with this, but it was too slow, could not perform enough aerobatics without folding its wings, and was way too limted by the wind, especially in March, so I decided I would upgrade to a low wing plane in electirc before continuing on to a more expensive version. Seeing that I had 85% of the equipment to try it out, I figued a GWS kit would be a cheap way to see give it a shot. If I cant fly it, no loss, Ive got plenty of Heli's that I can stick all my equpiment in.

Im new at this but, I gotta tell you, you get out there have a few great flights, and some cold beer....even if you crash and burn it was a good time.

I heard that! Sorry, it sounded as tho this was the first time you had flown. You will probably do fine! I have an Aerobird Challenger whick I folded the wings once. I put a reinforcement rod just inside the leading edge and stopped that! It's still one of my fun planes! If you flew it you should be ok.

Good Luck!