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The dilemma of UP FM   Message List  
Reply | Forward Message #2527 of 6150 |
Re: [LPFM] The dilemma of UP FM

Basically I don't want to spend the money to run the Tx remotely, besides it
cost several thousand to get the crane in to install the 15 M mast that I have.

What you all are telling is is exactly what I expected to hear, but was
starting to doubt myself.

Robert

On 15 Jun 2004 at 1:35, DaveD wrote:

> Robert S Dew wrote:
> >
> > Jarra is trying to tell me that if I reduce my deviation I wouldn't have the
> > cross channel interference that I'm getting from him.
> >
> > Can anybody tell me if this is correct.
> >
> > They (UP FM) are only 0.1 from us with a physical separation of 8 Kms
> >
> > I realise that being higher than us they will get a better distance, which I
> > believe is also part of the problem.
> >
> > I estimate that they are 120 m above sea level while ours is 30 m
> >
> > Robert
> > TLC Radio
> >
>
> Sounds like B/S to me
>
> If you reduce your deviation, your modulation peaks will be less
> noticeable to his listeners, and your listeners will notice an apparent
> lowering of volume on their receivers, (Less recovered audio) and
> probably more "interference" from him.
>
> If on the other hand he reduces his, your listeners will notice less of
> his mod peaks.
>
> You and I know that 200 kHz spacing works reasonably well 8-). Who is on
> 107.5 apart from me out west, that up might upset. I don't get to the
> inner city very often.
>
> Are there any other sites you might be able to use, Robert, to get
> better height.
>
> Dave
> SpiderFM 107.5




Mon Jun 14, 2004 6:45 pm

bob@...
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Message #2527 of 6150 |
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UP FM is still causing me great problems. I have had listeners tell me that it comes in clearly in Manukau City, which has got to mean that they are way over...
Robert S Dew
bob@...
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Jun 10, 2004
10:09 pm

They could be on a hill? As 88.2 when Tourist used to broadcast it got over a large part of the city with its West Auckland translator. Michael Robert S Dew...
Michael and Ross
alnairgrus
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Jun 10, 2004
10:37 pm

They are on the side of Mt Hobson, but to drown me out in all directions seems a little more than a high location given that I'm 7.5 Km from them...
Robert S Dew
bob@...
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Jun 10, 2004
10:43 pm

Hi all, Time for some theory: A LPFM station radiating -3dBW (0.5W EIRP), on a good site, with no obstructions, has the following reach: Urban grade stereo...
Jochen Siegenthaler
jochensiegen...
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Jun 10, 2004
11:13 pm

I have uploaded to the Files section here a PDF file from http://www.internews.ru/books/radiohandbook/index.html which covers a lot of theory in layman-speak...
akwccr
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Jun 11, 2004
10:43 am

Jarra is trying to tell me that if I reduce my deviation I wouldn't have the cross channel interference that I'm getting from him. Can anybody tell me if this...
Robert S Dew
bob@...
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Jun 14, 2004
8:42 am

He told me the same thing. We had UPFM's own tech (well, the guy they contract) to come tune our gear and in reality it didn't make any difference at all.... ...
Matt Camp
mattcampnz
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Jun 14, 2004
10:56 am

They should allow Auckland to use 87.8 to 88.4 due to the restrictions and 88.4 is fairly useless anyway. Michael Matt Camp <matt@...> wrote: He told...
Michael and Ross
alnairgrus
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Jun 14, 2004
10:15 pm

Hi Robert, My understanding is that the deviation is not related to range to any extent. Here is an extract from my TX manual: 6. Connect an audio source to...
akwccr
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Jun 14, 2004
12:26 pm

I'm hopeful of being there, just depends on my work schedule, and that I don't know for sure until 9pm the night before. Robert...
Robert S Dew
bob@...
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Jun 14, 2004
7:57 pm

... Sounds like B/S to me If you reduce your deviation, your modulation peaks will be less noticeable to his listeners, and your listeners will notice an...
DaveD
marday2
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Jun 14, 2004
1:35 pm

Basically I don't want to spend the money to run the Tx remotely, besides it cost several thousand to get the crane in to install the 15 M mast that I have. ...
Robert S Dew
bob@...
Send Email
Jun 14, 2004
7:12 pm

Hi Bob, Don't confuse the 75kHz deviation with meaning that you occupy 75kHz of spectrum bandwidth You need to consider Carsons Rule The maximum deviation...
Jochen Siegenthaler
jochensiegen...
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Jun 14, 2004
10:21 pm

... ...and the reason unlicenced operators need to meet together to discuss problems such as these in an attempt to find a mutually beneficial agreement....
Andrew Dubber
adubber
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Jun 14, 2004
10:59 pm

Totally agree that cooperation is the best way to go. But even with cooperation how do you address the issue of trying to fit a baker's dozen into a 12-egg...
Jochen Siegenthaler
jochensiegen...
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Jun 14, 2004
11:14 pm

Now there is a novel idea - except it means a change in management rights for Government spectrum - and thus it needs to happen at probably Ministerial level ...
Jochen Siegenthaler
jochensiegen...
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Jun 14, 2004
11:16 pm

Andrew, I'm interested in attending - as an independent technical type, without any affiliation to any station. Would there be room for me? Do I have to bring...
Jochen Siegenthaler
jochensiegen...
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Jun 14, 2004
11:18 pm

And of course you'd ask for 87.5 to 88.4 as most radios tune down to 87.5 J ... Now there is a novel idea - except it means a change in management rights for...
Jochen Siegenthaler
jochensiegen...
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Jun 14, 2004
11:22 pm

Adding more frequencies could well provide a short term fix, but I would be of the mind that even if more frequencies were added, they would all get gobbled up...
tony @ mulcher
leprosyjack
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Jun 14, 2004
11:33 pm

There was, presume still is, a 40 channel land mobile service which finishes at 87.95Mhz, which is why 88.0 is not included in the LPFM guardband. I searched...
Ross Levis
rosslevis
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Jun 15, 2004
12:50 am

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