[cma-l] CR on AM

fantasy office office at fantasyradio.co.uk
Wed Sep 24 11:49:55 BST 2014 

it's true to say AM is not considered very sexy these days, but there's 
life in the old dog yet.

Our first RSL broadcasts were on AM back in 1995, using a transmitter of 
my own design, and we had good daytime reception over a wide area, with 
none of the black spots you often get on low power FM! The antenna 
design is vital for AM, but we were on 1 watt EMRP and we had listeners 
as far away as Sweden and Germany. It's worth remembering that there are 
far fewer stations on AM these days, causing less interference, so for 
community broadcasting, AM could be very worthwhile. especially when 
backed up by a good quality stream.

If anyone would like more info on AM, feel free to get in touch.


Phil Dawson


/DEVIZES AND MID WILTSHIRE/

office at fantasyradio.co.uk
07710 027389




On 24/09/2014 11:15, cma-l-request at mailman.commedia.org.uk wrote:
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> Today's Topics:
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>     1.  Community Radio on AM (Ian Hickling)
>     2. Re:  Community Radio on AM (Martin Steers)
>     3.   Community Radio on AM (Ian Hickling)
>     4. Re:  Community Radio on AM (Tony Bailey)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Tue, 23 Sep 2014 14:11:52 +0000
> From: Ian Hickling <transplanfm at hotmail.com>
> To: cma-l <cma-l at commedia.org.uk>
> Subject: [cma-l] Community Radio on AM
> Message-ID: <DUB125-W2530FDB78100381C773894ADB00 at phx.gbl>
> Content-Type: text/plain; charset="iso-8859-1"
>
> I updated our own internal record of Community Radio stations today with the most recent additions.This is based with acknowledgement on Ofcom's published TX Parameters and shows that out of the 267 individual CR transmitters (as opposed to the number of broadcasters) licensed, 231 are currently on air.I will happily pass this document on to any interested parties that message me.At the same time I looked at the number of CR transmitters operational on Medium Wave (AM) and the power they are using.There are just seven out of that total of 267, - two using 100W EMRP, two at 70W which is the normal maximum allocated to a CR, one at 10W, one at 4W and the last which we know well at 1W.This illustrates I suggest the level of uptake of AM - that Ofcom is offering as an alternative where it says that no FM frequency is available.
> -------------------------------------------------
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> ------------------------------
>
> Message: 2
> Date: Tue, 23 Sep 2014 15:15:54 +0100
> From: Martin Steers <martin at martinsteers.co.uk>
> To: The Community Media Association Discussion List
> 	<cma-l at mailman.commedia.org.uk>
> Subject: Re: [cma-l] Community Radio on AM
> Message-ID:
> 	<CAM-raMfYTPmjpBjXdfx-k1T7byQ=Mc1D2aHD=Y77v9-16HFkdQ at mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
> whats the coverage like on AM at 10w, 4w and 1w?
>
> On 23 September 2014 15:11, Ian Hickling <transplanfm at hotmail.com> wrote:
>
>> I updated our own internal record of Community Radio stations today with
>> the most recent additions.
>> This is based with acknowledgement on Ofcom's published TX Parameters and
>> shows that out of the 267 individual CR transmitters (as opposed to the
>> number of broadcasters) licensed, 231 are currently on air.
>> I will happily pass this document on to any interested parties that
>> message me.
>> At the same time I looked at the number of CR transmitters operational on
>> Medium Wave (AM) and the power they are using.
>> There are just seven out of that total of 267, - two using 100W EMRP, two
>> at 70W which is the normal maximum allocated to a CR, one at 10W, one at 4W
>> and the last which we know well at 1W.
>> This illustrates I suggest the level of uptake of AM - that Ofcom is
>> offering as an alternative where it says that no FM frequency is available.
>>
>> -------------------------------------------------
>>
>>
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>> Reply - cma-l at commedia.org.uk
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> ------------------------------
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> Message: 3
> Date: Tue, 23 Sep 2014 15:02:37 +0000
> From: Ian Hickling <transplanfm at hotmail.com>
> To: Martin Steers <martin at martinsteers.co.uk>, The Community Media
> 	Association	Discussion List <cma-l at mailman.commedia.org.uk>
> Subject: [cma-l]  Community Radio on AM
> Message-ID: <DUB125-W8305A6FF7436574768C58EADB00 at phx.gbl>
> Content-Type: text/plain; charset="iso-8859-1"
>
> I haven't done any real appraisals apart for the Farnborough station which manages about a 2-mile radius in daytime hours which is be barely adequate but does at least cover the core population.I'm not aware of any computer coverage software that will cope with MF - and of course there's the question of exactly the EMRP value - and even more indeterminate - the antenna propagation pattern.
> I'm sure other members will  have first-hand information.
>
> From: martin at martinsteers.co.uk
> Date: Tue, 23 Sep 2014 15:15:54 +0100
> To: cma-l at mailman.commedia.org.uk
> Subject: Re: [cma-l] Community Radio on AM
>
> whats the coverage like on AM at 10w, 4w and 1w?
> On 23 September 2014 15:11, Ian Hickling <transplanfm at hotmail.com> wrote:
>
>
>
> I updated our own internal record of Community Radio stations today with the most recent additions.This is based with acknowledgement on Ofcom's published TX Parameters and shows that out of the 267 individual CR transmitters (as opposed to the number of broadcasters) licensed, 231 are currently on air.I will happily pass this document on to any interested parties that message me.At the same time I looked at the number of CR transmitters operational on Medium Wave (AM) and the power they are using.There are just seven out of that total of 267, - two using 100W EMRP, two at 70W which is the normal maximum allocated to a CR, one at 10W, one at 4W and the last which we know well at 1W.This illustrates I suggest the level of uptake of AM - that Ofcom is offering as an alternative where it says that no FM frequency is available.
> -------------------------------------------------
>   		 	   		
>
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> Message: 4
> Date: Tue, 23 Sep 2014 18:08:24 +0100
> From: Tony Bailey <ravensound at pilgrimsound.co.uk>
> To: cma-l at mailman.commedia.org.uk
> Subject: Re: [cma-l] Community Radio on AM
> Message-ID: <5421A908.4060804 at pilgrimsound.co.uk>
> Content-Type: text/plain; charset="iso-8859-1"; Format="flowed"
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> See: http://lrcov.crc.ca/main/
>
> On 23/09/14 15:15, Martin Steers wrote:
>> whats the coverage like on AM at 10w, 4w and 1w?
>>
>> On 23 September 2014 15:11, Ian Hickling <transplanfm at hotmail.com
>> <mailto:transplanfm at hotmail.com>> wrote:
>>
>>      I updated our own internal record of Community Radio stations
>>      today with the most recent additions.
>>      This is based with acknowledgement on Ofcom's published TX
>>      Parameters and shows that out of the 267 individual CR
>>      transmitters (as opposed to the number of broadcasters) licensed,
>>      231 are currently on air.
>>      I will happily pass this document on to any interested parties
>>      that message me.
>>      At the same time I looked at the number of CR transmitters
>>      operational on Medium Wave (AM) and the power they are using.
>>      There are just seven out of that total of 267, - two using 100W
>>      EMRP, two at 70W which is the normal maximum allocated to a CR,
>>      one at 10W, one at 4W and the last which we know well at 1W.
>>      This illustrates I suggest the level of uptake of AM - that Ofcom
>>      is offering as an alternative where it says that no FM frequency
>>      is available.
>>
>>      -------------------------------------------------
>>
>>
>>      _______________________________________________
>>
>>      Reply - cma-l at commedia.org.uk <mailto:cma-l at commedia.org.uk>
>>
>>      The cma-l mailing list is a members' service provided by the
>>      Community Media Association - http://www.commedia.org.uk
>>      Twitter: http://twitter.com/community_media
>>      http://www.facebook.com/CommunityMediaAssociation
>>      Canstream Internet Radio & Video: http://www.canstream.co.uk/
>>      _______________________________________________
>>
>>      Mailing list guidelines:
>>      http://www.commedia.org.uk/about/cma-email-lists/email-list-guidelines/
>>      _______________________________________________
>>
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>>
>>
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>> Reply - cma-l at commedia.org.uk
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>> Twitter: http://twitter.com/community_media
>> http://www.facebook.com/CommunityMediaAssociation
>> Canstream Internet Radio & Video: http://www.canstream.co.uk/
>> _______________________________________________
>>
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