Channel 7 Freq -

dazla · Post by **dazla** » Sat Jul 22, 2006 9:38 pm

While we are on this topic, does Channel 7 have a frequency it used to chat to the studio or from their media car to other cars etc?

Post by **vk6hgr** » Sat Jul 22, 2006 10:16 pm

dazla wrote:While we are on this topic, does Channel 7 have a frequency it used to chat to the studio or from their media car to other cars etc?

Try 472.800Mhz

Post by **Bonez** » Sat Jul 22, 2006 11:04 pm

Hi Joss

I most certainly do know.

Those tones are GPS information to track the channel 7 helicopter, so that the microwave link on the mast at the studio in Dianella knows the location of the chopper and it can track it to ensure there is a constant video signal.

Basically the chopper transmits it's GPS co-ordinates and the mast at the studio also moves (it's on a rotator) to track the choppers signal and ensure they can receive video when doing a live cross or sending back live pictures.

If that doesn't make sense let me know, cause i've had a few drinks

I doubt you'd be able to decode them as it's some kind of a proprietry format that the software uses.

Cheers
Bonez

Turbo · Post by **Turbo** » Sun Jul 23, 2006 2:13 am

A bit off topic but I also found out that the channel 7 helicopter is more than one third faster than the other stations helicopters. Meaning if a job is 15minutes away - channel 7 can leave 5minutes after the others and still get there first!

What an advantage. Maybe Bonez can confirm this?

Post by **Bonez** » Mon Jul 24, 2006 12:55 am

I'm not sure about the speed of the choppers, but I know that TVW7 owns their chopper outright, however 9 and 10 don't actually own their helecopters, they are owned by a 3rd party company who supply pilots to both the stations during business hours, pay for fuel, maintaince etc, the stations just pay a fixed fee and get a set amount of flying hours per month included.

Seven uses VHF from their chopper to send GPS details, however there are also others way to do it, including sending the GPS via the same microwave link that the video and audio is travelling down.

Bonez

The Green Bastard · Post by **The Green Bastard** » Sat Aug 05, 2006 9:23 am

7 use a Squirrel whilst 9 & 10 use Jet Rangers. The Squirrel is faster but 7s chopper is heavy and burns more fuel. It can get there slightly faster but its up time is shorter than than 9 & 10.

doogues71 · Post by **doogues71** » Sun Aug 06, 2006 1:34 pm

dazla wrote:While we are on this topic, does Channel 7 have a frequency it used to chat to the studio or from their media car to other cars etc?

TVW CH 7:161.2625
TVW CH 7:163.4000
TVW CH 7:463.0250
TVW CH 7:463.2000
TVW CH 7:472.8000
TVW CH 7:474.8750
TVW CH 7:463.8750
TVW CH 7:187.7500

also heres CHANNEL NINES FREQ
STW CH 9:487.6500
STW CH 9:487.3500
STW CH 9:486.4500
STW CH 9:485.3750

krusty · Post by **krusty** » Mon Aug 07, 2006 9:13 pm

Channel ten used moblie phones to talk to crews and also to do line up for there live cross. Thats to stop ch7 and ch9 what they are doing. Because they also scan those feq.