LPFM_Radio : Message: Re:STL Link

Hi John
We are setting up a link for our station using 150mW
tx from www.acreselectronics.co.nz They are down here
at Oamaru and can supply Tx Rx and antenna, Have
discussed the proposal with the RI and it seem OK.
Was going to use gardband talk through repeater but
found a 25Watt courier link at the same site as our
receiver so 2.4G looks like our best option for less
then $1k.
Charlie Oamaru Heritage Radio 88.3 - 107

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I am after some advice and help. The Flea in Auckland broadcasts from Mt Victoria in Devonport. The studio is located 2.5km away in Bayswater. The challenge we...

bay107fm

Dec 7, 2006
7:11 pm

Hello John How about trying internet streaming to link up. Brian bay107fm <bay107fm@...> wrote: I am after some advice and help. The Flea in Auckland...

Brian Gallagher
brianislay

Dec 7, 2006
10:00 pm

I'd be interested in thoughts on microwave STL's as we are considering a link to our Stratford station and broadband is not available from the proposed sending...

Robert S Dew
bob@...

Dec 7, 2006
10:16 pm

2.4 will go a long way using gris pack aerials. You can get 200mW units. They will go many times further than 2.5km. Not really legal though Keith ... From:...

Keith
oldmill@...

Dec 8, 2006
7:32 am

U can send digital S/PDIF over a good 2.4GHz link using a video microwave transmitter aswell. Problem with 2.4GHz is all the wi-fi lan enthusiasts though and...

Gavin Stephens
gstephens@...

Dec 8, 2006
7:48 am

2.4 will go a long way using grid pack aerials. You can get 200mW units. They will go many times further than 2.5km. Not really legal though Keith ... From:...

Keith
oldmill@...

Dec 8, 2006
8:40 am

Yes that Acres Electronics stuff I've kept an eye on out of some interest. Anyway, the following is for the electronics modifier... and budget STL maybe... I...

Gavin Stephens
gstephens@...

Dec 9, 2006
7:09 am

Unless Acres electronics has new models, the A/V senders use FM modulation for video with 2 subcarriers for the 2 audio channels. They are not digital. There...

Keith
oldmill@...

Dec 9, 2006
7:59 am

Hey Keith, Yep, I realise their TX's are analogue. I am surprised though that digital is just as cheap these days as some affordable 2.4GHz analogue gear for...

Gavin Stephens
gstephens@...

Dec 9, 2006
10:31 am

Microwave ovens use 2.4Ghz which is why it is a free spectrum area as commercial use is not reliable. ...

Ross Levis
rosslevis

Dec 9, 2006
11:02 am

And I should add that frequency drift on microwave ovens is common. They don't have frequency locking like most transmitters. ... From: Ross Levis To:...

Ross Levis
rosslevis

Dec 9, 2006
11:12 am

Many thanks for all of the coments. Ross, I agree about the interference on 2.4Ghz. Even with the directional Parabolic Aerial I was getting a lot of...

bay107fm

Dec 9, 2006
6:03 pm

Yes microwave ovens do use 2.4gHz, along with an amateur radio band, AV senders. phones, etc, etc, however they do use different portions of the band. Those...

Keith
oldmill@...

Dec 9, 2006
10:21 pm

there is an ISM allocation around 925 Megs but the eirp is quite low for NO licence stuff ... From: Keith To: LPFM_Radio@... Sent: Sunday,...

Steve Jepson
kiwihamsteve

Dec 9, 2006
10:38 pm

1000mW for the 925 Megs stuff. BTW, just on another side note for the 2.4GHz stuff. Analogue's restricted to 1000mW aswell. Digital is allowed 4000mW. You...

Gavin Stephens
gstephens@...

Dec 10, 2006
12:18 am

Hi John We are setting up a link for our station using 150mW tx from www.acreselectronics.co.nz They are down here at Oamaru and can supply Tx Rx and antenna,...

Charlie Fraser
fraserco88

Dec 8, 2006
9:30 pm

In the congested Auckland 2.4GHz space you need to... a) use a digital wireless link. Not just digital encoded audio, but a proper spread-spectrum...

Jochen Siegenthaler
jochensiegen...

Dec 11, 2006
10:25 pm

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