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Sangean ATS-909x question
On Jun 23, 10:31*am, rkhalona wrote:
Any owners of this new radio here? I am wondering if you are hearing any (audible) difference when you switch between the wide and narrow bandwidth settings in AM mode. Thanks for your answers. Ramon Khalona "RK", Go Here for the Sangean Company webpage for the Sangean ATS-909X AM/FM/SW Receiver http://www.sangean.com/products/prod...=71&pan=9&um=3 -has-down-loads-for- * Manual PDF -note- Read Page 32 "Switch Setting" : AM Narrrow / Wide -says- The Filter Switch works NW in the AM Mode -and- Is Always Narrow in SSB Mode * Specification PDF * Flyer PDF Call/Contact Sangean USA and ask then the Question as to the Band-Widths of the AM Mode Wide and Narrow Filters in the Sangean ATS-909X AM/FM/SW Receiver http://www.sangean.com/contact_us/contact_us.asp?um=5 INFO : Phone + eMail + On-Line 'Web-Request' Form |
Sangean ATS-909x question
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Sangean ATS-909x question
On Jun 26, 8:20*am, RHF wrote:
On Jun 23, 10:31*am, rkhalona wrote: Any owners of this new radio here? I am wondering if you are hearing any (audible) difference when you switch between the wide and narrow bandwidth settings in AM mode. Thanks for your answers. Ramon Khalona "RK", Go Here for the Sangean Company webpage for the Sangean ATS-909XAM/FM/SW Receiverhttp://www.sangean.com/products/products_main.asp?pid=71&pan=9&um=3 -has-down-loads-for- * Manual PDF -note- Read Page 32 "Switch Setting" : AM Narrrow / Wide -says- The Filter Switch works NW in the AM Mode -and- Is Always Narrow in SSB Mode * Specification PDF * Flyer PDF Call/Contact Sangean USA and ask then the Question as to the Band-Widths of the AM Mode Wide and Narrow Filters in the Sangean ATS-909XAM/FM/SW Receiverhttp://www.sangean.com/contact_us/contact_us.asp?um=5 INFO : Phone + eMail + On-Line 'Web-Request' Form *. *. -alternative- Radio Labs Support may be able to answer the Question as to the Band-Widths of the AM Mode Wide and Narrow Filters in the Sangean ATS-909XAM/FM/SW Receiverhttp://www.radiolabs.com/support/ *. *. Thanks RHF. I am looking for other users' experience. My unit comes from Radio Labs, with the filter upgrade (their so-called, "Clearmod" modification). The difference when I switch from AM wide to narrow is almost always inaudible and, for all practical purposes, does not make any difference without detuning the radio in slow mode. I wonder if owners of the stock radio experience the same. (The Radio Labs people think this is the way the radio is supposed to work, which I found puzzling and surprising) RK |
Sangean ATS-909x question
I have owned two Sangeans before.An ATS 909 and another Sangean that was
AM/FM/TV and Weather.I sent them back to C Crane because they were Crap! cuhulin |
Sangean ATS-909x question
On 06/29/2011 11:12 AM, rkhalona wrote:
Thanks RHF. I am looking for other users' experience. My unit comes from Radio Labs, with the filter upgrade (their so-called, "Clearmod" modification). The difference when I switch from AM wide to narrow is almost always inaudible and, for all practical purposes, does not make any difference without detuning the radio in slow mode. I wonder if owners of the stock radio experience the same. (The Radio Labs people think this is the way the radio is supposed to work, which I found puzzling and surprising) RK This may be more of a function of the AM station's transmitter. Try tuning off by 1 KHz so you get some sideband splatter. Can you hear cymbals and sibilance, or do you hear crackling and popping? If it's the latter, the station isn't transmitting any highs. See if the bandwidth selector makes a difference while off tuned a little. |
Sangean ATS-909x question
On Jun 29, 2:12*pm, rkhalona wrote:
On Jun 26, 8:20*am, RHF wrote: On Jun 23, 10:31*am, rkhalona wrote: Any owners of this new radio here? I am wondering if you are hearing any (audible) difference when you switch between the wide and narrow bandwidth settings in AM mode. Thanks for your answers. Ramon Khalona "RK", Go Here for the Sangean Company webpage for the Sangean ATS-909XAM/FM/SW Receiverhttp://www.sangean.com/products/products_main.asp?pid=71&pan=9&um=3 -has-down-loads-for- * Manual PDF -note- Read Page 32 "Switch Setting" : AM Narrrow / Wide -says- The Filter Switch works NW in the AM Mode -and- Is Always Narrow in SSB Mode * Specification PDF * Flyer PDF Call/Contact Sangean USA and ask then the Question as to the Band-Widths of the AM Mode Wide and Narrow Filters in the Sangean ATS-909XAM/FM/SW Receiverhttp://www.sangean.com/contact_us/contact_us.asp?um=5 INFO : Phone + eMail + On-Line 'Web-Request' Form *. *. -alternative- Radio Labs Support may be able to answer the Question as to the Band-Widths of the AM Mode Wide and Narrow Filters in the Sangean ATS-909XAM/FM/SW Receiverhttp://www.radiolabs.com/support/ *. *. Thanks RHF. *I am looking for other users' experience. *My unit comes from Radio Labs, with the filter upgrade (their so-called, "Clearmod" modification). The difference when I switch from AM wide to narrow is almost always inaudible and, for all practical purposes, does not make any difference without detuning the radio in slow mode. *I wonder if owners of the stock radio experience the same. (The Radio Labs people think this is the way the radio is supposed to work, which I found puzzling and surprising) RK- Hide quoted text - - Show quoted text - Is there any reason they did not furnish any actual numbers/ specifications ? Their website mentions something like a 'processor filter'(?) . This sounds sort of evasive as far as I'm concerned . And even Sangean doesn't have much information about the static or dynamic bandwih measurements . They must be hiding something . |
Sangean ATS-909x question
On Jun 29, 11:12*am, rkhalona wrote:
On Jun 26, 8:20*am, RHF wrote: On Jun 23, 10:31*am, rkhalona wrote: Any owners of this new radio here? I am wondering if you are hearing any (audible) difference when you switch between the wide and narrow bandwidth settings in AM mode. Thanks for your answers. Ramon Khalona "RK", Go Here for the Sangean Company webpage for the Sangean ATS-909XAM/FM/SW Receiverhttp://www.sangean.com/products/products_main.asp?pid=71&pan=9&um=3 -has-down-loads-for- * Manual PDF -note- Read Page 32 "Switch Setting" : AM Narrrow / Wide -says- The Filter Switch works NW in the AM Mode -and- Is Always Narrow in SSB Mode * Specification PDF * Flyer PDF Call/Contact Sangean USA and ask then the Question as to the Band-Widths of the AM Mode Wide and Narrow Filters in the Sangean ATS-909XAM/FM/SW Receiverhttp://www.sangean.com/contact_us/contact_us.asp?um=5 INFO : Phone + eMail + On-Line 'Web-Request' Form *. *. -alternative- Radio Labs Support may be able to answer the Question as to the Band-Widths of the AM Mode Wide and Narrow Filters in the Sangean ATS-909XAM/FM/SW Receiverhttp://www.radiolabs.com/support/ *. *. Thanks RHF. *I am looking for other users' experience. *My unit comes from Radio Labs, with the filter upgrade (their so-called, "Clearmod" modification). The difference when I switch from AM wide to narrow is almost always inaudible and, for all practical purposes, does not make any difference without detuning the radio in slow mode. *I wonder if owners of the stock radio experience the same. (The Radio Labs people think this is the way the radio is supposed to work, which I found puzzling and surprising) RK RK, If you have a Very W-I-D-E 'Wide' IF Filter +8 kHz and a not-so-wide 'Wide' IF Filter ~4 kHz you may NOT hear or detect too much difference between the two when it comes to AM-Mode Radio Reception. However, If you have a Standard 'Wide' IF Filter ~5 kHz and a Narrow IF Filter -3 kHz you may well Hear a/r Detect some real difference between the two when it comes to AM-Mode Radio Reception. What "kHz" and "Shape Factor" Rad-Labs 'claim' for their Wide and Narrow IF Filter in the Mod'ed Sangean ATS-909X Radio ? Sangean ATS 909X - Modified for Clarity http://www.radiolabs.com/products/re...s-909x-mod.php iwtk ~ RHF |
Sangean ATS-909x question
On Jun 30, 7:05*am, dave wrote:
On 06/29/2011 11:12 AM, rkhalona wrote: Thanks RHF. *I am looking for other users' experience. *My unit comes from Radio Labs, with the filter upgrade (their so-called, "Clearmod" modification). The difference when I switch from AM wide to narrow is almost always inaudible and, for all practical purposes, does not make any difference without detuning the radio in slow mode. *I wonder if owners of the stock radio experience the same. (The Radio Labs people think this is the way the radio is supposed to work, which I found puzzling and surprising) RK This may be more of a function of the AM station's transmitter. Try tuning off by 1 KHz so you get some sideband splatter. Can you hear cymbals and sibilance, or do you hear crackling and popping? If it's the latter, the station isn't transmitting any highs. See if the bandwidth selector makes a difference while off tuned a little. Hi Dave, I have tried that and, as I said above, without detuning you would never know there is a different filter in there, but one should hear a difference when you switch from wide to narrow, without detuning. According to Radio Labs, they have used filter bandwidths of 4.5 KHz and 2 KHz for wide and narrow. A 2 KHz filter should cripple audio fidelity noticeably (and reduce interference), but I am hearing no difference. I have had two other people listen independently and they say the same, so it is not just my ears. I have now read a couple of reviews elsewhere that indicate the bandwidth switch does very little (including the guys at Universal Radio, whom I telephoned), so it looks like a flaw this radio has, including the modified version. RK |
Sangean ATS-909x question
On Jul 1, 2:55*am, RHF wrote:
On Jun 29, 11:12*am, rkhalona wrote: On Jun 26, 8:20*am, RHF wrote: On Jun 23, 10:31*am, rkhalona wrote: Any owners of this new radio here? I am wondering if you are hearing any (audible) difference when you switch between the wide and narrow bandwidth settings in AM mode. Thanks for your answers. Ramon Khalona "RK", Go Here for the Sangean Company webpage for the Sangean ATS-909XAM/FM/SW Receiverhttp://www.sangean.com/products/products_main.asp?pid=71&pan=9&um=3 -has-down-loads-for- * Manual PDF -note- Read Page 32 "Switch Setting" : AM Narrrow / Wide -says- The Filter Switch works NW in the AM Mode -and- Is Always Narrow in SSB Mode * Specification PDF * Flyer PDF Call/Contact Sangean USA and ask then the Question as to the Band-Widths of the AM Mode Wide and Narrow Filters in the Sangean ATS-909XAM/FM/SW Receiverhttp://www.sangean.com/contact_us/contact_us..asp?um=5 INFO : Phone + eMail + On-Line 'Web-Request' Form *. *. -alternative- Radio Labs Support may be able to answer the Question as to the Band-Widths of the AM Mode Wide and Narrow Filters in the Sangean ATS-909XAM/FM/SW Receiverhttp://www.radiolabs.com/support/ *. *. Thanks RHF. *I am looking for other users' experience. *My unit comes from Radio Labs, with the filter upgrade (their so-called, "Clearmod" modification). The difference when I switch from AM wide to narrow is almost always inaudible and, for all practical purposes, does not make any difference without detuning the radio in slow mode. *I wonder if owners of the stock radio experience the same. (The Radio Labs people think this is the way the radio is supposed to work, which I found puzzling and surprising) RK RK, If you have a Very W-I-D-E 'Wide' IF Filter +8 kHz and a not-so-wide 'Wide' IF Filter ~4 kHz you may NOT hear or detect too much difference between the two when it comes to AM-Mode Radio Reception. However, If you have a Standard 'Wide' IF Filter ~5 kHz and a Narrow IF Filter -3 kHz you may well Hear a/r Detect some real difference between the two when it comes to AM-Mode Radio Reception. What "kHz" and "Shape Factor" Rad-Labs 'claim' for their Wide and Narrow IF Filter in the Mod'ed Sangean ATS-909XRadio ? Sangean ATS909X- Modified for Clarityhttp://www.radiolabs.com/products/receivers/ats-909x-mod.php iwtk ~ RHF *. *.- Hide quoted text - - Show quoted text - Hi RHF, Radio Labs claims they have used 4.5 KHz for wide and 2 KHz for narrow. As I said in my response to Dave, one should be able to hear the difference between these pretty easily (for reference, my Drake SW8 has 6, 4 and 2.4 KHz bandwidths, and one can hear the difference between all three pretty well, especially in going from the middle to the lowest bandwidth because the narrowest filter muffles the audio distinctly). I just wanted to hear about other users' experience, wether they have the stock or modified radio. Thanks for your reply. RK |
Sangean ATS-909x question
On Fri, 01 Jul 2011 13:26:39 -0700, rkhalona wrote:
I have now read a couple of reviews elsewhere that indicate the bandwidth switch does very little (including the guys at Universal Radio, whom I telephoned), so it looks like a flaw this radio has, including the modified version. RK I think that you need to get your money returned. |
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