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23rd September 2015, 01:30 PM
#11
Patrol Freak
Originally Posted by
Winnie
I have an old Uniden 40ch in my car, it works perfectly so I have no need to change it.
It's never been a problem for me but if everybody I went driving with wanted to use the higher channels I would probably update.
For now I will keep what I have.
x2 until my 40 channel unit dies, or all my mates that I go out with have an 80 channel I see no reason to change atm
2008 GU6 3.0 CRD AUTO | Safari Snorkel | 2" Ironman lift kit | Runva 11XP Winch | 33" MTZ's | Full Length Roof Rack | GME TX3200 | 30" LED Light Bar |
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threedogs (23rd September 2015)
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23rd September 2015 01:30 PM
# ADS
Circuit advertisement
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23rd September 2015, 10:56 PM
#12
Patrol Guru
Just reprogram the 40 ch to 80 and problem solved 😉
Sent from my SM-G925I using Tapatalk
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23rd September 2015, 11:45 PM
#13
I was told by an electronics shop guy the other day that if you have a 40ch then people on the same channel who have an 80ch won't hear you as well......sounded a bit strange to me. Maybe I was on 40 and he was on 80 and I didn't hear him properly....
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24th September 2015, 01:35 AM
#14
Patrol God
Originally Posted by
Blaktop
I was told by an electronics shop guy the other day that if you have a 40ch then people on the same channel who have an 80ch won't hear you as well......sounded a bit strange to me. Maybe I was on 40 and he was on 80 and I didn't hear him properly....
At the moment 1-40 the channels are programed the same, it's 41-80 which are different. Channel 41 is really 1.5, 42 is 2.5 etc etc.
There was talk of it changing after set time but I'm not sure if that's been dropped or not as many haven't changed to 80 channel units.
I'm with you guys. My 40 has a bit of life yet so in no rush to change.
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24th September 2015, 06:08 AM
#15
Patrol Guru
as the old saying goes, if it aint broke don't fix it. If you are happy with your equipment and it does what you want then why change it.
I read an Oricon statement once that said the band width signals will be getting narrower and that's why people will need to use more channels so a 80 channel unit was the way to go.
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BigRAWesty (24th September 2015)
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24th September 2015, 10:01 AM
#16
Patrol God
Originally Posted by
blocko05
as the old saying goes, if it aint broke don't fix it. If you are happy with your equipment and it does what you want then why change it.
I read an Oricon statement once that said the band width signals will be getting narrower and that's why people will need to use more channels so a 80 channel unit was the way to go.
That's it. Technology no allows a channel every half frequency without cross over interference..
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24th September 2015, 10:09 AM
#17
Patrol God
my Icom jr i30[hand held 2 watt] has all those inbetween channels like channel 15.1, 15.2 etc
You can hear the others but they dont interfere with with who ever Im talking to.
Might be better off off putting my 27meg CB dick smith Hornet 2 back in, and
use upper and lower side band. Who knows might have all the channels to myself.
04 ST 3lt auto, not enough Mods to keep me happy, but getting there
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24th September 2015, 02:01 PM
#18
Patrol Guru
Originally Posted by
Blaktop
I was told by an electronics shop guy the other day that if you have a 40ch then people on the same channel who have an 80ch won't hear you as well......sounded a bit strange to me. Maybe I was on 40 and he was on 80 and I didn't hear him properly....
Nearly...... It's actually the othe way round. 80 sounds softer on the receiving 40.
98' Ti, 4.5L, 2" lift, factory rear diff lock with front E-locker, 63% reduction gears
"GO YOU CROWS"
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23rd December 2015, 10:10 AM
#19
The 80 channel is a lot softer, when received on a 40. And the 40 channel is a lot louder when received on a 80.
The first 40 channels on the 80 channel cb are the same as a 40 channel. The second 40 channels are interspersed between the first 40. Ie channel 41 is between channel 1 & 2. This is accomplished by narrowing the the channel from 25 khz spacing to 12.5 khz.
A comparison is using 50mm water pipe compared to 25 mm water pipe, with the same pump and pressure you will get twice as much water though th 50mm pipe
Reprogramming older cbs to 80 channels. Depending on the design it might not be possible. The channel s could be in a 1 time program chip, the design might not have the correct devider to work at 12.5 khz spacing and the front end filters might not work correctly
Another option for the 40 channel rigs, is to reduce the transmitter deviation. This would give you a 40 channel rig compatible with the 80 channels rigs, using the first 40 channels
Last edited by GQ TANK; 23rd December 2015 at 10:21 AM.
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mudnut (23rd December 2015)
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23rd December 2015, 10:52 AM
#20
Taking this a little further.
If you don't currently have a radio would you be better buying an 80ch over a 40ch.
I'm guessing yes.
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