27 MHz

For discussion of AM and UHF CB
Night_Ryder
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27 MHz

Post by Night_Ryder »

Do many people still use 27MHz CB these days? I used to burn on the old box all the time when I lived in the tropics and still have a few good sets but people a saying that its becoming less and less popular in Australia? Does anyone have anything to say?
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Nick
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Post by Nick »

It comes back with the sunspot cycle. But it is nearly impossible to buy a new SSB 27 mHz radio. Appears not as popular with the braindead and you can have a conversation without hearing the in/out word 5 times per sentence. Still no substitute for amateur radio......
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Post by Chicky »

My ex has a 27Mhz he bought second hand from a hire boat guy.... We searched for ages about 2 years ago trying to find one with no luck (except overly priced ones). He still uses it around Rockingham, as the sea rescue there still has the band operational.
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Post by vk6hgr »

Chicky wrote:My ex has a 27Mhz he bought second hand from a hire boat guy.... We searched for ages about 2 years ago trying to find one with no luck (except overly priced ones). He still uses it around Rockingham, as the sea rescue there still has the band operational.
There's 27MHz marine, and 27MHz CB - they're different.
:P
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Night_Ryder
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Post by Night_Ryder »

I live in the Northern Territory, however in Perth atm. Up there I used to be able to sit on the 27MHz on SSB, more specifically LSB, and be able to get contacts from Brisbane to Melbourne.
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Chicky
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Post by Chicky »

Doh... :oops: But I knew that... Honest! :)
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Post by Tyranus »

Chicky wrote:Doh... :oops: But I knew that... Honest! :)
not the only one chicky I just thought the marine radios's were waterproofed standard 27Mhz radios so I've learnt something.
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Post by Nick »

I have a very nice President Washington base available if anybody interested......
Lucas_arts_182

Post by Lucas_arts_182 »

is it as stuffed up as the real thing?
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Post by slipknot »

becuase its on AM dose that mean it travels over hillls unlike uhf in a strait line?
WPXZBP

Post by WPXZBP »

slipknot wrote:becuase its on AM dose that mean it travels over hillls unlike uhf in a strait line?
It shouldn't really matter what mode (AM, Sideband) you use. The fact it's 27MHz should mean it travels further.
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Post by Fastlane »

WPXZBP wrote:
slipknot wrote:becuase its on AM dose that mean it travels over hillls unlike uhf in a strait line?
It shouldn't really matter what mode (AM, Sideband) you use. The fact it's 27MHz should mean it travels further.
Mind you, output power is higher under Sideband, is it not? :)
WPXZBP

Post by WPXZBP »

From http://www.comlaw.gov.au/ComLaw/Legisla ... cbrsCL.pdf
Operation of a CB station must only employ:
(a) AM with a transmitter power not exceeding
4 watts pZ with a necessary bandwidth not
exceeding 6 kHz; or
(b) SSB modulation using USB or LSB with a
transmitter power not exceeding 12 watts pX
and with a necessary bandwidth not exceeding
3 kHz.
(For HF except on channels 11 & 16.)
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Post by slipknot »

what as in terms of uhf? 4watts plus 27mhz yer, i would think thats why its more powerfull , is that what you ment?



ph and yer as of before thats what i ment , am yer its 27 mhz which is why its futher. i guess UHF is more popular cos its got repeaters? is that why?
Fastlane wrote:
WPXZBP wrote:
slipknot wrote:becuase its on AM dose that mean it travels over hillls unlike uhf in a strait line?
It shouldn't really matter what mode (AM, Sideband) you use. The fact it's 27MHz should mean it travels further.
Mind you, output power is higher under Sideband, is it not? :)
slipknot
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Post by slipknot »

Nick wrote:It comes back with the sunspot cycle. But it is nearly impossible to buy a new SSB 27 mHz radio. Appears not as popular with the braindead and you can have a conversation without hearing the in/out word 5 times per sentence. Still no substitute for amateur radio......

whats the in/out word that Nick mentioned? do you have to say that when your talking on AM do you?
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