80 Channel UHF- 40 Channel UHF

Submitted: Tuesday, Jun 03, 2014 at 12:57
ThreadID: 108087 Views:2115 Replies:5 FollowUps:2
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Hi all, does anybody here know how 80 ch corresponds with 40 ch, for instance. Most truckies seem to use ch 40 and gray nomads ch 18 on a 40 channel transceiver. The Simpson desert and CSR seem to have recognized channels for safety purposes, which channels do you use on an 80 channel set to talk with people with 40 channel sets? Probably a stupid question, but it won't be the last time I'll sit in the corner. Cheers,
Kanga...........
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Reply By: Member -Ted (Vic) - Tuesday, Jun 03, 2014 at 13:18

Tuesday, Jun 03, 2014 at 13:18
Kanga
The channels 1-40 on an 80 channel set are the same as on a 40 channel set, channel 41 (80CH) falls between channel 1 and 2 on a 40 channel set. You would use the same frequencies as you have mentioned in your post.
AFAIK

cheers
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Follow Up By: Kanga1 - Tuesday, Jun 03, 2014 at 16:57

Tuesday, Jun 03, 2014 at 16:57
Thanks Ted, I had suspected that that may be the case, but wasn't 100% sure. Cheers, Kanga.
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Reply By: AlbyNSW - Tuesday, Jun 03, 2014 at 17:31

Tuesday, Jun 03, 2014 at 17:31
I have an 80 channel and the guys I travel with have 40's and have no problems using same channels as them, likewise I did not experience any issues communicating with others in the Simpson on channel 10
Come to think of it I have not been past channel 40 yet hahaha
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Reply By: Member - daz (SA) - Tuesday, Jun 03, 2014 at 19:45

Tuesday, Jun 03, 2014 at 19:45
top post Kanga
I & I bet a lot of others needed to know if the 40 channel & 80 channel UHFs were compatible.
Daz
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Reply By: patsproule - Tuesday, Jun 03, 2014 at 20:37

Tuesday, Jun 03, 2014 at 20:37
There is one problem. The 80 channel units use half the FM deviation as the 40 channel ones and sound a lot quieter in comparison to someone calling from a 40 channel unit.
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Follow Up By: Allan B (Member, SunCoast) - Tuesday, Jun 03, 2014 at 23:25

Tuesday, Jun 03, 2014 at 23:25
That's right. You can compensate with the volume control whilst there are just the two of you talking, but in a group with a mix of 40 & 80 channel sets, you are forever adjusting the volume. No simple answer to that.
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Reply By: Bob Y. - Qld - Tuesday, Jun 03, 2014 at 20:38

Tuesday, Jun 03, 2014 at 20:38
Kanga,

Check out thread 107801. Some discussion on 40 versus 80 channel units.

Bob.

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