Model Boat Mayhem - Forum

Please login or register.

Login with username, password and session length.
Pages: [1]   Go Down

Author Topic: Dual conversion receiver  (Read 1568 times)

Robin smith

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 147
  • Model Boat Mayhem is Great!
  • Location: Ipswich
Dual conversion receiver
« on: May 14, 2016, 08:11:52 AM »

i am not very bright when it comes to electronics and radio etc. I needed a small receiver to fit my Engel type 7c. Not a lot of room where it sits. I purchased a small 40 MHz receiver which fits where it needs to go. I then obtained some 40 MHz crystals. I wanted to test and nothing works??? I then disconnect and get a 40 MHz receiver out of my box and using on outside of tek rack try out and it works. My transmitter is a new F16. The small receiver I got is dual conversion ....what never heard or considered it?
Is this the reason it doesn't work....do I need dual conversion crystals is there such a thing?
I am finding the Engel Type 7 very hard to work with just no room, so tight think I could be a surgeon....not easy for a 70 year old ex karate expert and 15 Dan with all his fingers joined together......only joking. 😂😂
Logged

inertia

  • Guest
Re: Dual conversion receiver
« Reply #1 on: May 14, 2016, 08:52:10 AM »

do I need dual conversion crystals is there such a thing?

Yes, you do - and yes, there is. Goodness knows where you'd find a set these days, though.
DM
Logged

g6swj

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 313
  • Short Wave Jammer! -.-
  • Location: Northamptonshire, UK
Re: Dual conversion receiver
« Reply #2 on: May 14, 2016, 08:57:04 AM »

Robin,

Hope these links aren't Red Herrings!

http://www.sloughrc.com/default.asp?WPG=SRCM_HomePage1&PageNumber=1&s=c:070,c:070-080,c:070-080-070,b:Futaba

http://www.micronradiocontrol.co.uk/crystals.html

Looks like they have some dual conversion crystals in sock - not sure they are both rx/tx and compatible but worth a call
Jonathan

Logged

inertia

  • Guest
Re: Dual conversion receiver
« Reply #3 on: May 14, 2016, 09:59:10 AM »

Just in case Robin is still confused, you can use a dual conversion receiver crystal with a "normal" transmitter crystal as long as they are both on the same channel and frequency.
DM
Logged

Corposant

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 1,613
  • Location: Hampshire UK
Re: Dual conversion receiver
« Reply #4 on: May 14, 2016, 10:04:09 AM »

Robin

You could also try Scoonie-hobbies - need to telephone (01592 651792).

I bought a couple off them recently - they are prepared to deal with sassenachs!  O0

Mike
Logged

microgyros

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 208
  • Location: Glasgow
    • microgyros website
Re: Dual conversion receiver
« Reply #5 on: May 14, 2016, 11:37:19 AM »

Logged

essex2visuvesi

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 6,146
  • Location: Finland, England, Finland!
Re: Dual conversion receiver
« Reply #6 on: May 14, 2016, 11:47:44 AM »

http://www.hobbyking.com/hobbyking/store/__6440__Corona_Synthesized_Dual_Conv_Receiver_9Ch_40Mhz.html
Hobbyking are out of stock but I have one @ 16 inc post.


I use these almost exclusively on my 40Mhz TX now :)
Logged
One By One The Penguins Steal My Sanity
Proud member of the OAM  (Order of the Armchair Modeller)
Junior member of the OGG  (Order of the Grumpy Git)

Robin smith

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 147
  • Model Boat Mayhem is Great!
  • Location: Ipswich
Re: Dual conversion receiver
« Reply #7 on: May 14, 2016, 04:40:37 PM »

thank you so much guys for all your help have ordered the crystal. Much appreciatted. Regards Robin
Logged
Pages: [1]   Go Up