[TheList] Auckland air Traffic control

Wed Apr 14 05:00:38 AEST 2010

Hi Dennis,

I must confess to reading about plenty of people doing it, but as yet I 
haven't felt the need to buy the appropriate hardware and have a go myself.

Regards,

Neill.

Denis Dawson wrote:
> Hi Neil
> I used to have some info on this but with a quick look couldn't find it.
> As I understand it was only OZ ATC not NZ and it was on the old B3 bird.
> Christchurch does control a huge hunk of NZ airspace but I am not sure how
> they link all those remote repeaters and Base stations.
> I know every time I have had to change an LNB at work ( not often)it has
> been a very pricy one.
>
> Have you had a go at getting IS5 - Australia International and BBC on C Band
> with a small dish?
> Denis
>
> -----Original Message-----
> From: thelist-bounces at radiowiki.org.nz
> [mailto:thelist-bounces at radiowiki.org.nz] On Behalf Of Neill Ellis
> Sent: Monday, 12 April 2010 10:27 p.m.
> To: thelist at radiowiki.org.nz
> Subject: Re: [TheList] Auckland air Traffic control
>
> Hi Denis,
>
> I haven't done it myself... But come to think about it a bit, I expect 
> it would be lots of SCPC Narrowband FM signals. This means the 
> transponder power would be distributed amongst all these different 
> signals. I wouldn't be at all surprised if it required a (much?) larger 
> dish because of this.
>
> As for what's available, on which bird and why I have no real idea.
>
> What I am aware of is the majority of flight routing is handled by 
> Christchurch ATC, maybe some or all of this traffic on the satellite is 
> the linking to the remote sites.
>
> As for the cost of a PLL LNB, they were about 5 times the price of a 
> standard LNB back then. Times have changed dramatically since then. 
> LNBF's are the order of the day now, maybe PLL LNBF's are available, 
> maybe you need to buy a PLL LNB and a seperate feed like the old days.
>
> I made a couple of calls tonight. The guys I knew who were doing it 
> aren't anymore, they both were using 1.8m andrews spun prime focus 10 
> GHz microwave dishes converted to satellite. The LNB's were sold with 
> the dishes to other Hams.
>
> Regards,
>
> Neill.
>
>
> Denis Dawson wrote:
>   
>> Last time I heard/read about this it was only on one of the Optus
>>     
> satellites
>   
>> D2 from memory so most NZers would have a SKY dish up and won't be looking
>> at D2.
>> Denis
>>
>> -----Original Message-----
>> From: thelist-bounces at radiowiki.org.nz
>> [mailto:thelist-bounces at radiowiki.org.nz] On Behalf Of Neill Ellis
>> Sent: Monday, 12 April 2010 5:24 p.m.
>> To: thelist at radiowiki.org.nz
>> Subject: Re: [TheList] Auckland air Traffic control
>>
>> Hi Kevin,
>>
>> I haven't done it myself, but as I understand it you can indeed listen 
>> to some of the ATC feeds on satellite.
>>
>> You obviously still need a power feed to the LNB, so most people use a 
>> splitter with power pass only on one port, that port going to the 
>> satellite receiver that powers the LNB. You connect a scanning receiver 
>> to the port on the splitter that is DC isolated to prevent the power to 
>> the LNB damaging your scanner.
>>
>> The scanner needs to be able to tune into the frequency range coming out 
>> of the LNB, which could be anywhere from 950MHz to 2400MHz depending 
>> upon your LNB and it's Local Oscillator.
>>
>> Here's the slightly difficult bit! The Local Oscillator in most LNB's is 
>> not locked to a stable reference such as a crystal, so they tend to 
>> drift up and down a bit. You will need to find out what frequency the 
>> Local Oscillator actually is to calculate what frequency your scanner 
>> needs to tune to. Then again it's going to be changing with temperature 
>> drift etc.
>>
>> Those who do this that I know have bought expensive PLL locked LNB's 
>> where the Local Oscillator is locked to a stable crystal reference to 
>> stop this wandering, even then they still do wander a little, but 
>> nowhere near as bad as a normal LNB.
>>
>> Avcomm in Sydney stocked this PLL LNB's last time I needed one for 
>> another project, they weren't cheap, but I expect the likes of Jayx, 
>> Supreme Antennas, Hooktech could also provide them here in NZ.
>>
>> Reality is, if you live outside the geographic area of interest this is 
>> a realistic way of listening in. But if you live in the area a simple 
>> aerial and cheap scanner and you are in business. Scanners with the 
>> higher UHF frequencies required to listen to ATC generally cost quite a 
>> bit more.
>>
>> Regards,
>>
>> Neill.
>>
>>
>> Kevin Cosgrove wrote:
>>   
>>     
>>> Hi  
>>>
>>> Am I reading this right.  Can you listen to ATC from Auckland via a dish
>>>     
>>>       
>> and a scanner  Are these frequencys satellite fed
>>   
>>     
>>> Thanks
>>>
>>> Kevin
>>> On 11/04/2010, at 9:00 PM, Neill Ellis wrote:
>>>
>>>   
>>>     
>>>       
>>>> Well, there's a list posted elsewhere someone might like here :-)
>>>>
>>>>
>>>> -------- Original Message --------
>>>> Date: 	Sun, 11 Apr 2010 20:13:25 +1200
>>>>
>>>>
>>>>
>>>> Bank 1) Auckland International 1 NZAA Tower Primary 118.700
>>>> 2 NZAA Tower Secondary 120.800
>>>> 3 NZAA Delivery 128.200
>>>> 4 NZAA Ground 121.900
>>>> 5 NZAA Apron 123.000
>>>> 6 NZAA ATIS 127.800
>>>> 7 Ramp (Air NZ Int'l) 131.900
>>>> 8 Ramp (Air NZ Domestic) 132.900
>>>> 9 Ramp (Air NZ Link) 131.000
>>>>
>>>> Bank 2) Auckland Regional Control 11 Auckland Control 129.500 12
>>>>         
> Auckland
>   
>>>>       
>>>>         
>> Area Control 120.500
>>   
>>     
>>>> 13 Auckland Approach 124.300
>>>> 16 Christchurch Control Central North Island 119.500
>>>> 17 Auckland Control 129.6
>>>> 18 Auckland Oceanic Control Primary 123.900
>>>> 19 Auckland Oceanic Control Secondary 134.000 20 Christchurch
>>>>         
> Information
>   
>>>>       
>>>>         
>> (Akl region) 118.500
>>   
>>     
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