Sending not recieving

Place to come if youre having technical issues, including mic wiring

Moderator: stampman

Post Reply
tastytoetruck
New to the Scene
New to the Scene
Posts: 7
Joined: Mon Jun 02, 2014 7:54 pm

Mon Jun 02, 2014 8:15 pm

Please help. I have a Midland alan48 excel multi with a cheap Maplins aerial. I have wired it into a ciggarette socket. When i key the mic i'm only getting between two and five on the power meter. A friend said he could hear me but all I got back is interference so I changed the earth and 12v supply and im now getting between five and seven on the power meter. Also i have been told it could be a issue with the aerial or the mag mount. Any help please.
Many thanks
User avatar
stampman
- - -> CB God <- - -
- - -> CB God <- - -
Posts: 6074
Joined: Mon Apr 24, 2006 3:36 pm
Location: lancaster

Tue Jun 03, 2014 8:08 am

first thing check the swr then try with the engine running cbs are designed to work most efficencently at 13.9 volts and a battery generally does not put this out especially when under load


*King* *King* *King* *King*
if it anit broke dont fix it
tastytoetruck
New to the Scene
New to the Scene
Posts: 7
Joined: Mon Jun 02, 2014 7:54 pm

Tue Jun 03, 2014 8:29 am

Thanks for your help. Will look into it and let you know.
User avatar
porky.69
- - -> CB God <- - -
- - -> CB God <- - -
Posts: 2115
Joined: Sun May 04, 2008 8:11 pm
Location: Birmingham, England

Sat Jun 07, 2014 11:34 pm

antenna or coax maybe ???
tastytoetruck
New to the Scene
New to the Scene
Posts: 7
Joined: Mon Jun 02, 2014 7:54 pm

Sun Jun 08, 2014 10:49 am

Hi.
Thanks for your help but after a little digging I found that when I took it out and put it into my car aerial and all it worked perfectly. So thinking it must be a power issue. So going to run a cable straight from the batteries to the cab with a in line fuse hopefully that will sort it. Thanks for your help.
User avatar
stampman
- - -> CB God <- - -
- - -> CB God <- - -
Posts: 6074
Joined: Mon Apr 24, 2006 3:36 pm
Location: lancaster

Sun Jun 08, 2014 10:56 am

no tap it into the 12volt dropper in the wagon and it will be fine and a lot easier to fit i do all wagon fittings that way

and check the set in the car first of all if its been wired into 24volt which the cig lighter in a wagon is the you could have blown the audio i/c


*King* *King* *King* *King*
if it anit broke dont fix it
tastytoetruck
New to the Scene
New to the Scene
Posts: 7
Joined: Mon Jun 02, 2014 7:54 pm

Sun Jun 08, 2014 10:43 pm

Originally it was wired into the dropper which seems to be causing the problem. I then took a earth from a different source and a live from the back of the 12v cig lighter but to no avail so I tested the device in my car with the aerial and it worked fine. So kind of thinking it is the dropper at fault.
User avatar
stampman
- - -> CB God <- - -
- - -> CB God <- - -
Posts: 6074
Joined: Mon Apr 24, 2006 3:36 pm
Location: lancaster

Mon Jun 09, 2014 8:05 am

the only thing droppers do is if the voltage does not drop when the mic is keyed for tx is that they transmit noise and block the incoming signal


*King* *King* *King* *King*
if it anit broke dont fix it
Dragonfly
Motor Mouth!
Motor Mouth!
Posts: 436
Joined: Thu Oct 07, 2010 3:11 pm

Mon Jun 09, 2014 2:03 pm

Think the Alan 48 Excel Multi may operate on 12 or 24 volt .
What wagon have you got , Some wagons do make quite a lot of interference , I find fridge trailors the worst for interference .
tastytoetruck
New to the Scene
New to the Scene
Posts: 7
Joined: Mon Jun 02, 2014 7:54 pm

Mon Jun 09, 2014 3:10 pm

It's a Scania six wheeler tipper. Would be handy to know if it will work on 24 as this could solve a lot of problems. Lol
Dragonfly
Motor Mouth!
Motor Mouth!
Posts: 436
Joined: Thu Oct 07, 2010 3:11 pm

Mon Jun 09, 2014 10:35 pm

I loved the tin top Scania that I had , I had a 3/8 mount bolted on the center of the top bar that the air deflector bolts to and I used to get all over the world .
Had a look about online and as far as I can tell the 48 excel seems to be 12/24 volt auto switching but looking at the pictures there is no indication on the back , the newer 248 XL is 12v only .
tastytoetruck
New to the Scene
New to the Scene
Posts: 7
Joined: Mon Jun 02, 2014 7:54 pm

Mon Jun 09, 2014 10:42 pm

After you mentioned 12/24v I had a look on the instructions and it does say that you can use either. So going to try it tomorrow on 24v and pray nothing goes wrong. Will keep you posted.
User avatar
stampman
- - -> CB God <- - -
- - -> CB God <- - -
Posts: 6074
Joined: Mon Apr 24, 2006 3:36 pm
Location: lancaster

Tue Jun 10, 2014 8:20 am

scani tipper use a sirio guttermount and it will last as long as you have the waggon


*King* *King* *King* *King*
if it anit broke dont fix it
Post Reply