Tue Sep 14, 2021 12:09 pm
#1870318
If aircraft are only transmitting 0.5W and there isnt a network of ground stations to receive their transmissions how will it work?
flyinfox wrote:If aircraft are only transmitting 0.5W and there isnt a network of ground stations to receive their transmissions how will it work?
Cessna571 wrote:flyinfox wrote:If aircraft are only transmitting 0.5W and there isnt a network of ground stations to receive their transmissions how will it work?
Transponders don’t transmit that low.
I was talking about the ground stations for the 0.5W.
But tbh, we shouldn’t get into the whole PAW ground station thing.
I was just making the point that they are not going to need hundreds of ground stations for their uplink, because it’s an aviation frequency where they can transmit at higher power.
As I said, where are they going to get their MLAT though? Which one of the MLAT sites are they using?
You need groundstations for that I presume ?
flyinfox wrote:Cessna571 wrote:flyinfox wrote:If aircraft are only transmitting 0.5W and there isnt a network of ground stations to receive their transmissions how will it work?
Transponders don’t transmit that low.
I was talking about the ground stations for the 0.5W.
But tbh, we shouldn’t get into the whole PAW ground station thing.
I was just making the point that they are not going to need hundreds of ground stations for their uplink, because it’s an aviation frequency where they can transmit at higher power.
As I said, where are they going to get their MLAT though? Which one of the MLAT sites are they using?
You need groundstations for that I presume ?
MLAT requires ground stations. Majority of EC equipped GA in the UK only have Mode S. Its hard to see what the trial will accomplish. TIS-B and FIS-B are already proven in the USA. However it only works over there because they have a network of ground stations and all aircraft have to be equipped with ADS-B in and out using 978MHz and 1090MHz. That cost $billions. If that were to be implemented in the UK who would pay for it?
C1FF wrote:The note from NATS suggests that data from MLAT will be included in the "air picture".
Aircraft position on MLAT in poor coverage areas and/ or at low altitude can be fairly inaccurate. Does anyone know how the system being trialed deals with position inaccurancies?
Spurious traffic alerts/warnings inflight are not helpful.
riverrock wrote:@Paul_Sengupta Presumably that was transponder vs PAW so due to different antennae needed?
Cessna571 wrote:Anyway, I’m out of this thread now all the naysayers have turned up.
I experienced it working and thought it would be very positive for all us.
SE2 users and PAW fanboys alike.
It’s a religion isn’t it?
You have to chant “PAW is good, it’s the only way, it’s the true way” etc.
I’m just interested in conspicuity.
ho hum.
For everyone else, this closes the loop for everyone that PAW was closing for PAW users only.
And it closes it for PAW users too!