Re: Do these cellular amplifiers work for all cellphones?

On 4/9/2022 4:21 PM, Woody wrote:

> On Sat 09/04/2022 21:14, Alan Browne wrote:
>> On 2022-04-09 13:08, Woody wrote:
>>> On Sat 09/04/2022 17:08, David Woolley wrote:
>>>> On 09/04/2022 16:16, gtr wrote:
>>>>> Why would it be illegal to listen to ANY signal that is over the air?
>>>>
>>>> In this case, it is because they retransmit the signal in the vehicle.
>>>>
>>>> However there is an also expectation of privacy.  The default UK 
>>>> position is that you need a licence to receive radio transmissions, 
>>>> although there are some exemptions.
>>>>
>>>> Even the US makes it illegal to listen on cellular frequencies, even 
>>>> though other frequencies, including the police, were open.
>>>>
>>>> I don't think either country has changed its legislation to reflect 
>>>> that cellular systems are now encrypted.
>>>
>>> The default UK ruling is that you can only (in theory at least) listen 
>>> to transmissions intended for public entertainment, information, or 
>>> education. How anyone could be traced and/or prosecuted for listening 
>>> to anything in open speech on any waveband just shows how little the 
>>> establishment understands! Listening to civil aircraft is illegal but 
>> 
>> I seem to recall British government trucks roaming around with apparatus 
>> to listen for non-licensed television.  They would pick up 
>> characteristic signals from the television:
>> https://en.wikipedia.org/wiki/TV_detector_van
>> 
>>> look see how many people you see standing around the perimeter fence 
>>> at most major airports with scanners stuck on their ears! Radio 
>>> amateur licences gave a much wider brief - they could legally listen 
>>> to maritime transmissions for instance which is why in the UK it was 
>>> necessary to take a 12wpm morse test so that you could identify marine 
>>> distress calls. OfCom recognised some years ago that maritime comms is 
>>> now largely VHF for short range and satellite for longer distance so 
>>> did away with the morse test requirement: Japan retained the morse 
>>> test for a long time but set the speed at 0 wpm.
>>>
>>> Always puzzled me why the US barred scanners from listening to 
>>> cellular channels but would let you listen to police. The latter have 
>>> now gone largely digital (mostly DMR) but with a suitable radio you 
>>> can still listen to them even from the UK! Barmy IMO.
>> 
>> Cell calls, like phone calls are private.
>> Police is public.  (So most police went to encrypted gear to hide).
>> 
> 
> I would argue that comment - in the UK police is most definitely not 
> public, neither is the ambulance service. As the Fire Service uses the 
> Airwave digital network which is encrypted then that is now also not public.

Says it works for the whole world.
https://www.broadcastify.com/