VHF Comms 118-156Mhz?
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VHF Comms 118-156Mhz?
Dear Tech forumites,
Could you tell me if any radios work up to 156mhz? i was under the impression that it vhf comms went up to 136 for civil radios.
got a little bet going that airbus radios don't go up that far. any information helpful
cheers!
Could you tell me if any radios work up to 156mhz? i was under the impression that it vhf comms went up to 136 for civil radios.
got a little bet going that airbus radios don't go up that far. any information helpful
cheers!
Join Date: Jul 2008
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They may dial up that high but probably not tx (cant recall) , but if they would / could they'd be tx'ing on spectrum owned by other services.
That would be country dependent as spectrum is sold and used as seen fit by govt agencies usually.
see radioelectronicschool.net/files/downloads/frequencyallocations.pdf for the spectrum use in Oz
That would be country dependent as spectrum is sold and used as seen fit by govt agencies usually.
see radioelectronicschool.net/files/downloads/frequencyallocations.pdf for the spectrum use in Oz
In the US, 136.00 to 138.00 (137.97?) is assigned to the US Mil; up around 152.00-156.00 (I believe) is assigned to the Fire/Police Services.
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The 2 metre amateur (ham) radio band is 144 to 148 mhz in Oz similar to the USA and other parts of the world I believe, but is a secondary service here.
Airbus A320 VHF radios operate over the range: 118.00 to 136.975MHz with 25kHz channel spacing.
This is range tunable by the RMP and that of the Bendix transceiver.
- GY
This is range tunable by the RMP and that of the Bendix transceiver.
- GY
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GarageYears wrote:
Are you sure? Modern radios have 8.33 kHz spacing.
Airbus A320 VHF radios operate over the range: 118.00 to 136.975MHz with 25kHz channel spacing.
>The 2 metre amateur (ham) radio band is 144 to 148 mhz in Oz similar to the USA and other parts of the world I believe, but is a secondary service here.<
In ITU Region 1 the 2m amateur band is 144-146MHz and the amateur and amateur satellite services are primary users. In Regions 2 and 3 (the latter including Australia) they're also primary and the band is 144-148MHz.
In ITU Region 1 the 2m amateur band is 144-146MHz and the amateur and amateur satellite services are primary users. In Regions 2 and 3 (the latter including Australia) they're also primary and the band is 144-148MHz.
Are you sure? Modern radios have 8.33 kHz spacing.
I'd be interested to hear from any current A320 crew who find this is incorrect and 8.33kHz is available.
- GY
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Since 8,33 is mandatory in europe i would think everyone whose flights ever enter that region have to have 8,33kHz boxes, since around 10 years now. Not really anything new.
Of course an airline that never touches the EUR region does not need 8,33 spacing, however of course it is standard equipment on all airbus types as well.
Thanks, GY
