manchester ambulance

Scanning radio frequencies for the North West
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sparkles
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manchester ambulance

Post by sparkles »

could any body tell me what is goin on with the ambulance service raidos l can hear the base station calling out but when the mobile unit calls back all l can hear is a bleeping noise are they encripted? if so why only one side of the conversation or is it trunked l have a uniden bearcat 3300xlt trunk tracker so in theory l could follow them any suggestions would be great below l have left the frequencies
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166.287 171.087 NFM Manchester Met Ambulance.
166.300 171.100 NFM Manchester Met Ambulance. ?????????????
166.487 171.287 NFM Manchester Met Ambulance.
166.500 171.300 NFM Manchester Met Ambulance.
166.512 171.312 NFM Manchester Met Ambulance.
166.825 171.625 NFM Manchester Doctors.
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Post by Andrew »

It's just like taxis, in that band they are 4.8 mHz apart from the base. The beeping is a busy tone to let other users know that the control is busy in another conversation.
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sparkles
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manchester ambulance

Post by sparkles »

thanks for that my scanner does not have 4.8khz steps only 5khz is that close enough? looking through my 2005 scanner book and managed to get a load more frequencies from it it even lists the ctcss no to to put in on one frequency its way to late in the night just finshed work 3am dont want to wake the wife will try my new findings in the morn and let u know how i get on many thanks sparks :D
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Post by Andrew »

No, 4.8 MHZ!

If you look above at the frequencies you put in, there is a 4 .8 mHz gap. It's typical of almost everything from 165 - 169 mhz. 169 mHz frequencies are generally single use, where as round about it, the base or output is the lower of the two.

Our local shopping centre security for example can be heard on 166.7625, but the radio's transmit 4.8 mHz higher (171.5625) bounce of the repeater, and both sides can be heard on 166.7625. Search between 165 and 174 in 12.5 kHz steps if it has it, as it is the correct spacings.
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sparkles
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manchester ambulance

Post by sparkles »

thanks for that mate have done that the scanner sets up automaticaly in the steps range so it found loads more frequencies for the ambulance range still got that sodin bleeping noise though so i had a play around with the ctcss which helped alot i could hear the transmission but the bleeping was alot fainter still playing around with it going to try playing with the dcs tone code trouble is i dont know alot about it will let u know how i get on cheers again sparks
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Post by Andrew »

I prefer to listen in more locally to the uhf channels for ambulances, you only hear the chat, plus a dial up tone, conversation between the RRU's or Paramedic then when they finish, it moves on. None of that terrafix data chatter.

I'll be in Lancashire (Morecambe / Lancaster) from tomorrow morning until Wednesday night, I'll try and collect some more frequencies / tones whilst I'm there. Grab a few in Carlisle if I can, I'll be there about 9.30 for a wee whiley.

See you when I get back... :P
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manchester ambulance

Post by sparkles »

UHF ? is this on different range to nfm ? will i pick up manc ambulance on uhf if so what sort of range will they be in any ideas cheers for taking the time to look around for me any info on this topic would be great as many other people seem to be having the same problem accross the uk looking at other web forums i have posted msgs on thanks again sparks ](*,)
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Post by Andrew »

457.0375 Fire & Rescue Ch. 1
457.0875 Ch.2
457.0125 Ch.3
457.1875 Ch.4
457.1375 Ch.5
457.2375 Ch.6
459.875 Scottish Ambulance Service (S.A.S) vhf ++ uhf repeater
459.775 S.A.S Ch.2
459.825 S.A.S Ch.3
453.275 National Ambulance Channel 1
453.375 Ch.2
453.325 National Ambulance Channel 3, S.A.S. Channel 1

Above are the nationally allocated frequencies for uhf pocket radio's. Not all of them are in use in every area. Uhf is a band of frequencies, nfm is a mode of transmission. In area's where fire and rescue are Airwave, they still have analogue radio's for when at locations for communication between themselves.
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sparkles
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manchester ambulance

Post by sparkles »

hia andrew sorry its been a while getting back to u been busy i have tried those frequencies but they dont work in this area have tried everything but cant get rid of that bleeping noise i have tried every dcs and ctcss code but to no joy.could there be a chance that they are using encripted radios or on digital ? i cant see that they are on digital because i would not hear any thing at all. Any thaughts from any one who knows someone in the service who they may be able to quiz about the raidos would prove interisting may thanks again sparks :D
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Re: manchester ambulance

Post by andyandy »

sparkles wrote:could there be a chance that they are using encripted radios or on digital ?
Thats likely your answer, the beeping sound is the encripted signal which you can't decode if its digital.
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Post by scanning_editor »

All of the Ambulance services are going over to airwave. This move will be very quick when it happens as all transmitter sites are up and running.
All fire brigade will be doing the same.
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sparkles
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manchester ambulance

Post by sparkles »

oh well not to worry wont be long before some one upsets the apple cart by bringing out a scanner for digital it must be cracked sooner or later by someone not everything is secure for ever techonology is moving so fast. up to that point we can only hope that digital will go peat tong thanks for the posts sparks :lol:
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Post by andyandy »

Well all we can do is hope :wink: .
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