RE: longwave radio
Hi Dane I used to listen to the longwave band when I used to use my ham radio, I heard more with my dipole then with my transistor radio, I can see this band being phased out eventually for radio stations, it will be used for aircraft or something like that. Regards Adrien -Original Message- From: Pc-audio [mailto:pc-audio-boun...@pc-audio.org] On Behalf Of Dane Trethowan Sent: Saturday, June 07, 2014 3:35 PM To: PC Audio Discussion List Subject: Re: longwave radio there's nothing much in Australia to be found and I've known this ever since I got my first communications receiver equipped with Long wave all those years ago smile, though Australia did use Long Wave in the 20s and 30s. The debate then was whether or not to keep using Long Wave, those in favour of the Long Wave system pointed out the vast distances Long Wave could travel using Ground wave thus any signal received at the radio end was immune from the sort of effects that Sky Wave cause, you only have to listen to Short Wave broadcasts or broadcasts at the top end of the Medium Wave band to know what I'm talking about here. Those who were not in favour of the continuing use of the Long Wave Band pointed out that Long Wave was more seseptable to natural interference from thunderstorms activity and so on, in any case the use of the Long Wave band was given over to navigation beacons etc. On 7 Jun 2014, at 11:22 pm, brian sackrider n8...@comcast.net wrote: I use to have radio shaak dx400 radio and would tune leftof the am broadcast band from 150-540 or so and the only thing that I have ever heard on this band was those 3 letter cw becons and weather and this was on a long wire antanna and this was back in the 80's. In 1986 I went toEurop and they did broadcast on this band but it was in their own langueges. I think that those 3 letter cw stations might be airport navagation stations and this is my experiences with the long wave band. Brian Sackrider On 6/7/2014 6:19 AM, Colin Howard wrote: Dane, No, they are not taking it off air in 2016, 2020 at the very very earliest. Do you want a long wave scan or just samples of stations? I am quite happy to do a scann for you, waiting on each station for a few minutes, but please be aware, I am located only three miles from the local transmitter which carries A.M services and we get some imaging at the hf end of long wave. As for sets being sold with long wave, I am not aware of any lack, certainly down here in Hampshire. Radio 4 is on 198kHz and RTE1 (or is it 2)? is on 252kHz. R4 is reasonable but again, suffers problems due to the local A.M transmitter, primarily because we have Talk Sport on 1107kHz which generates a hetrodyne on 198kHz, I have not yet found a radio which totally nulls this, if you care to work it out, 1107 minus 198 = more or less double the i.f of many sets, i.e 909, most sets have an i.f of 465, 455 is half 909, rather close to the i.f of 465, which most sets tend to use, least those which have a.m on the lf and mf bands. RTE on 252 here, is not very strong, but then being on the south coast, the signal not really being very strong from the transmitter, it not really a surprise. ** Dane Trethowan Skype: grtdane12 Phone US (213) 438-9741 Phone U.K. 01245 79 0598 Phone Australia (03) 9005 8589 Mobile: +61400494862 faceTime +61400494862 Fax +61397437954 Twitter: @grtdane I use BullGuard to keep my computer clean. Try BullGuard for free: www.bullguard.com
longwave radio
I use to have radio shaak dx400 radio and would tune leftof the am broadcast band from 150-540 or so and the only thing that I have ever heard on this band was those 3 letter cw becons and weather and this was on a long wire antanna and this was back in the 80's. In 1986 I went toEurop and they did broadcast on this band but it was in their own langueges. I think that those 3 letter cw stations might be airport navagation stations and this is my experiences with the long wave band. Brian Sackrider On 6/7/2014 6:19 AM, Colin Howard wrote: Dane, No, they are not taking it off air in 2016, 2020 at the very very earliest. Do you want a long wave scan or just samples of stations? I am quite happy to do a scann for you, waiting on each station for a few minutes, but please be aware, I am located only three miles from the local transmitter which carries A.M services and we get some imaging at the hf end of long wave. As for sets being sold with long wave, I am not aware of any lack, certainly down here in Hampshire. Radio 4 is on 198kHz and RTE1 (or is it 2)? is on 252kHz. R4 is reasonable but again, suffers problems due to the local A.M transmitter, primarily because we have Talk Sport on 1107kHz which generates a hetrodyne on 198kHz, I have not yet found a radio which totally nulls this, if you care to work it out, 1107 minus 198 = more or less double the i.f of many sets, i.e 909, most sets have an i.f of 465, 455 is half 909, rather close to the i.f of 465, which most sets tend to use, least those which have a.m on the lf and mf bands. RTE on 252 here, is not very strong, but then being on the south coast, the signal not really being very strong from the transmitter, it not really a surprise.
Re: longwave radio
there's nothing much in Australia to be found and I've known this ever since I got my first communications receiver equipped with Long wave all those years ago smile, though Australia did use Long Wave in the 20s and 30s. The debate then was whether or not to keep using Long Wave, those in favour of the Long Wave system pointed out the vast distances Long Wave could travel using Ground wave thus any signal received at the radio end was immune from the sort of effects that Sky Wave cause, you only have to listen to Short Wave broadcasts or broadcasts at the top end of the Medium Wave band to know what I'm talking about here. Those who were not in favour of the continuing use of the Long Wave Band pointed out that Long Wave was more seseptable to natural interference from thunderstorms activity and so on, in any case the use of the Long Wave band was given over to navigation beacons etc. On 7 Jun 2014, at 11:22 pm, brian sackrider n8...@comcast.net wrote: I use to have radio shaak dx400 radio and would tune leftof the am broadcast band from 150-540 or so and the only thing that I have ever heard on this band was those 3 letter cw becons and weather and this was on a long wire antanna and this was back in the 80's. In 1986 I went toEurop and they did broadcast on this band but it was in their own langueges. I think that those 3 letter cw stations might be airport navagation stations and this is my experiences with the long wave band. Brian Sackrider On 6/7/2014 6:19 AM, Colin Howard wrote: Dane, No, they are not taking it off air in 2016, 2020 at the very very earliest. Do you want a long wave scan or just samples of stations? I am quite happy to do a scann for you, waiting on each station for a few minutes, but please be aware, I am located only three miles from the local transmitter which carries A.M services and we get some imaging at the hf end of long wave. As for sets being sold with long wave, I am not aware of any lack, certainly down here in Hampshire. Radio 4 is on 198kHz and RTE1 (or is it 2)? is on 252kHz. R4 is reasonable but again, suffers problems due to the local A.M transmitter, primarily because we have Talk Sport on 1107kHz which generates a hetrodyne on 198kHz, I have not yet found a radio which totally nulls this, if you care to work it out, 1107 minus 198 = more or less double the i.f of many sets, i.e 909, most sets have an i.f of 465, 455 is half 909, rather close to the i.f of 465, which most sets tend to use, least those which have a.m on the lf and mf bands. RTE on 252 here, is not very strong, but then being on the south coast, the signal not really being very strong from the transmitter, it not really a surprise. ** Dane Trethowan Skype: grtdane12 Phone US (213) 438-9741 Phone U.K. 01245 79 0598 Phone Australia (03) 9005 8589 Mobile: +61400494862 faceTime +61400494862 Fax +61397437954 Twitter: @grtdane
Re: longwave radio
Dane, This afternoon, I performed a full scann of long, medium and fm from the hf to the lf on each in turn. I will put the results on SendSpace, the whole thing lasts over an hour, it will be at a low sampling rate of probably 16,000Hertz converted to .mp3 stereo as on the fm band we have some stereo. I won't get round to doing this probably until Monday but may manage before. I plan to send the link to this group.
Re: longwave radio
Thanks for your time, look forward to it. On 8 Jun 2014, at 5:40 am, Colin Howard co...@pobox.com wrote: Dane, This afternoon, I performed a full scann of long, medium and fm from the hf to the lf on each in turn. I will put the results on SendSpace, the whole thing lasts over an hour, it will be at a low sampling rate of probably 16,000Hertz converted to .mp3 stereo as on the fm band we have some stereo. I won't get round to doing this probably until Monday but may manage before. I plan to send the link to this group. ** Dane Trethowan Skype: grtdane12 Phone US (213) 438-9741 Phone U.K. 01245 79 0598 Phone Australia (03) 9005 8589 Mobile: +61400494862 faceTime +61400494862 Fax +61397437954 Twitter: @grtdane
RE: longwave radio
Thanks for this; i will certainly download it as will others i'd guess. -Original Message- From: Pc-audio [mailto:pc-audio-boun...@pc-audio.org] On Behalf Of Dane Trethowan Sent: Saturday, June 07, 2014 12:47 PM To: PC Audio Discussion List Subject: Re: longwave radio Thanks for your time, look forward to it. On 8 Jun 2014, at 5:40 am, Colin Howard co...@pobox.com wrote: Dane, This afternoon, I performed a full scann of long, medium and fm from the hf to the lf on each in turn. I will put the results on SendSpace, the whole thing lasts over an hour, it will be at a low sampling rate of probably 16,000Hertz converted to .mp3 stereo as on the fm band we have some stereo. I won't get round to doing this probably until Monday but may manage before. I plan to send the link to this group. ** Dane Trethowan Skype: grtdane12 Phone US (213) 438-9741 Phone U.K. 01245 79 0598 Phone Australia (03) 9005 8589 Mobile: +61400494862 faceTime +61400494862 Fax +61397437954 Twitter: @grtdane
