I had a nose crash with my trainer - luckily the  reciever futaba 617 , survived since I had kept it in a plastic case - after I saw a fellow flier breaking his recievr in a crash.The plastic case broke , but reciever was Ok .I tested it wit a thumping heart   - to my amazement it was working fine( hats off to Futaba - really rugged) .
It was problem to have a spare reciever for futaba 617 costs 95$.
At hobby king I saw HK7 2.4 ( 7 ch with 8 ch reciver for 60$. no battery for Rxr).I got a 11.1 Lipo for  rxr.
I got one with a spare reciver ( 28$) Total cost with spare reciver - $88, whereas a futaba 617 Reciver itself costs 95$!
I have yet to try it out yet .
Has anyone used  HK 7 ,hw is it's performance 
Even the CD supplied with set is just nothing much  beyond basics
Can anyone give some views ?
Regards
Shiva

Raoji -

You mentioned a 11.1 lipo for RX, guess you meant the TX

About the radio, if you have a Futaba radio already, it is not wise to buy a TX just to get one more RX (or even two).  These radios are a case of "you get what you pay for", although they will work for beginners.  Since you have a good radio, only invest in receivers.

Who am I ?

Shiva Rao is from AP also.  He used to fly with us in Qatar  

Double "Raoji"s, double the fun

i have kds 7x which is 100% the same as the hk version as it is modified from hk
modified means only stickers!   i bhought it from Sai uncle

ask him if he can get you one

the price i got it for was around rs 5300+250 shipping
including a cd
tx
rx
bind plug

it is a very good one and recommended for begginers in 2.4 Ghz by me