Ascend Charlie
4th Oct 2004, 10:48
Is 128.0 a frequency which picks up interference from your own aircraft?
I realise that very few of you would have had to dial up this frequency, whether at Scone or anywhere else, since the frequency change, but has anybody found that some part of your aircraft's equipment causes reception interference on 128.0?
****CAN YOU PLEASE do a test for me? Dial up 128.0 when everything is running in your bird, and see if you get electrical noise in your headset*****
Three of our machines, all completely different, have such interference. One we have tracked to the inverters - which can't be turned off to stop the interference.
One we tracked to the EFIS screens - which can't be turned off.
One is yet to be tracked.
A call to CASA and to AirServices resulted in the statement that "it just cost us a lot to change this CTAF frequency, and we won't change it again for one operator. You fix your aircraft."
Another response was "It went to the RAPAC meeting and it was passed." Well, of course there was no problem at that time, it is only after pilots have to select the new freq and use it that anybody detects a problem.
So, if anybody else out there has this problem, please speak up. I will also put this in the D&G forum, but because that one is full of moaning Ansett pilots, few drivers who are likely to use Scone or 128.0 would lurk on it.
Cheers:8
I realise that very few of you would have had to dial up this frequency, whether at Scone or anywhere else, since the frequency change, but has anybody found that some part of your aircraft's equipment causes reception interference on 128.0?
****CAN YOU PLEASE do a test for me? Dial up 128.0 when everything is running in your bird, and see if you get electrical noise in your headset*****
Three of our machines, all completely different, have such interference. One we have tracked to the inverters - which can't be turned off to stop the interference.
One we tracked to the EFIS screens - which can't be turned off.
One is yet to be tracked.
A call to CASA and to AirServices resulted in the statement that "it just cost us a lot to change this CTAF frequency, and we won't change it again for one operator. You fix your aircraft."
Another response was "It went to the RAPAC meeting and it was passed." Well, of course there was no problem at that time, it is only after pilots have to select the new freq and use it that anybody detects a problem.
So, if anybody else out there has this problem, please speak up. I will also put this in the D&G forum, but because that one is full of moaning Ansett pilots, few drivers who are likely to use Scone or 128.0 would lurk on it.
Cheers:8