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#1
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C Crane SW was not designed for DRM reception :No 12 kHz Output
I was thinking about getting a new C Crane SW so I can receive distant digital radio monodiale radio stations, but I was reading somewhere else that the portable radio receiver only has a 455 kHz output IF AM jack. That got me disappointed, cause I have to get a down-converter box or circuit to add to the radio receiver. C Crane should of added 2 different jacks on the rear panel a 455 kHz output IF jack and a 12 kHz AM IF output jack for just DRM reception from the computer. I just wanted to let everyone know about this. I hope someone can hear me on this and understand. That it's going to be challenging to get the new DRM stations on this receiver without that converter box. I want to share something with others who own the C Crane SW which I will be getting soon is called the ESP converter box I hope this helps new and old rec.radio.shortwave listeners with the difficulty of getting DRM digital radio reception with the C Crane SW or other receivers out there. For DRM Converter Box http://www.electronicspecialtyproducts.com/dm1.html For Software and other nice goodies : http://www.electronicspecialtyproducts.com/dm1.html Happy DRM SW Listening and 73! Adam E. |
#2
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C Crane SW was not designed for DRM reception :No 12 kHz Output
On Mar 7, 7:02*pm, gccradioscience wrote:
I was thinking about getting a new C Crane SW so I can receive distant digital radio monodiale radio stations, but I was reading somewhere else that the portable radio receiver only has a 455 kHz output IF AM jack. * That got me disappointed, cause I have to get a down-converter box or circuit to add to the radio receiver. * *C Crane should of added 2 different jacks on the rear panel a 455 kHz output IF jack and a 12 kHz AM IF output jack for just DRM reception from the computer. I just wanted to let everyone know about this. * I hope someone can hear me on this and understand. *That it's going to be challenging to get the new DRM stations on this receiver without that converter box. * I want to share something with others who own the C Crane SW which I will be getting soon is called the ESP converter box * *I hope this helps new and old rec.radio.shortwave listeners with the difficulty of getting DRM digital radio reception with the C Crane SW or other receivers out there. * *For DRM Converter Box *http://www.electronicspecialtyproducts.com/dm1.html For Software and Goodies http://www.sat-schneider.de/DRM/DRM.htm Corrected URL * * * Happy DRM SW Listening *and 73! *Adam E. |
#3
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C Crane SW was not designed for DRM reception :No 12 kHz Output
On Mar 7, 4:18*pm, Bob Dobbs wrote:
gccradioscience wrote: I hope this helps new and old rec.radio.shortwave listeners with the difficulty of getting DRM digital radio reception I heard DRM is going the way of American HD-Radio, only quicker? -- Operator Bob Echo Charlie 42 I certainly hope so! |
#4
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C Crane SW was not designed for DRM reception :No 12 kHz Output
I have owned two C.Crane, Sangean radios before.The first one had the
AM/FM/TV/Weather stuff.I tried it out for one week, then I sent it back to Fortuna.Then I tried out a Sangean AM/FM/Shortwave 909 for one week, the most expensive model plus I paid them some extra money to tweak that radio.I sent that one back to Fortuna too. No more Sangeans for me! Unless I find one at the Goodwill store for a dollar or two. cuhulin |
#5
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C Crane SW was not designed for DRM reception :No 12 kHz Output
On Sun, 7 Mar 2010, gccradioscience wrote:
I was thinking about getting a new C Crane SW so I can receive distant digital radio monodiale radio stations, but I was reading somewhere else that the portable radio receiver only has a 455 kHz output IF AM jack. That got me disappointed, cause I have to get a down-converter box or circuit to add to the radio receiver. There's a lot more use to a 455KHz out jack than a 12KHz out jack. An IF out jack was never common, but neither were they completely rare. You'd use it to add an SSB adapter or an FM detector. Or add an IF based RTTY detector. Place it early enough in the IF chain (ie before the filtering) and you could connect a panadaptor to see what was going on. It was great for experimental use, since you could do all kinds of modifications without having to modify the receiver. Indeed, the one mod many might make was to add a jack to feed the 455KHz IF out of the radio. 12KHz is pretty much for only one purpose, your DRM converter. Well there are other uses, but might as well stick to the standard. Why should the radio add another conversion stage to suit your needs, when it isn't likely to be needed by many? The 455KHz jack adds little to the cost, but saves you having to modify the radio. Anyone doing any playing around would be capable of adding that conversion stage, if they needed it, to any project that they wanted to tack onto the radio. FOr instance, if I wanted to use that good 250KHz mechanical filter I have lying around, I'd have to add a conversion stage to use it with just about any radio. But with a 455KHz jack, I'd only have to convert to 250KHz. If all the radio had was a 12KHz jack, something I don't need, I'd have to convert that back up to 250KHz externally, adding another stage of unwanted and unnneded conversion. Michael |
#6
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C Crane SW was not designed for DRM reception :No 12 kHz Output
On Sun, 7 Mar 2010 16:02:46 -0800 (PST), gccradioscience
wrote: I was thinking about getting a new C Crane SW so I can receive distant digital radio monodiale radio stations, but I was reading somewhere else that the portable radio receiver only has a 455 kHz output IF AM jack. That got me disappointed, cause I have to get a down-converter box or circuit to add to the radio receiver. C Crane should of added 2 different jacks on the rear panel a 455 kHz output IF jack and a 12 kHz AM IF output jack for just DRM reception from the computer. I just wanted to let everyone know about this. I hope someone can hear me on this and understand. That it's going to be challenging to get the new DRM stations on this receiver without that converter box. I want to share something with others who own the C Crane SW which I will be getting soon is called the ESP converter box I hope this helps new and old rec.radio.shortwave listeners with the difficulty of getting DRM digital radio reception with the C Crane SW or other receivers out there. For DRM Converter Box http://www.electronicspecialtyproducts.com/dm1.html For Software and other nice goodies : http://www.electronicspecialtyproducts.com/dm1.html Happy DRM SW Listening and 73! Adam E. If you have a computer you could try a Ten Tec RX-320D black box receiver which has the 12kHz connector built in. I just gave one away to a friend. Mine was the older RX-320 which was easily modified for DRM. Before I gave it to him I tried some DRM reception and it worked well decoding China Radio relayed from Sackville (Canada) on 6080. BUT..... There are not too many DRM broadcasts out there. I tend to agree that it is a mode that may not be around too long. But on the bright side if you have a computer hooked to a radio you can decode lots of other stuff. Digital and analog SSTV and PSK31 to name a few. Jim |
#7
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C Crane SW was not designed for DRM reception :No 12 kHz Output
On Mar 8, 1:02*pm, Michael Black wrote:
On Sun, 7 Mar 2010, gccradioscience wrote: I was thinking about getting a new C Crane SW so I can receive distant digital radio monodiale radio stations, but I was reading somewhere else that the portable radio receiver only has a 455 kHz output IF AM jack. * That got me disappointed, cause I have to get a down-converter box or circuit to add to the radio receiver. There's a lot more use to a 455KHz out jack than a 12KHz out jack. *An IF out jack was never common, but neither were they completely rare. You'd use it to add an SSB adapter or an FM detector. *Or add an IF based RTTY detector. *Place it early enough in the IF chain (ie before the filtering) and you could connect a panadaptor to see what was going on. It was great for experimental use, since you could do all kinds of modifications without having to modify the receiver. Indeed, the one mod many might make was to add a jack to feed the 455KHz IF out of the radio. 12KHz is pretty much for only one purpose, your DRM converter. *Well there are other uses, but might as well stick to the standard. *Why should the radio add another conversion stage to suit your needs, when it isn't likely to be needed by many? *The 455KHz jack adds little to the cost, but saves you having to modify the radio. *Anyone doing any playing around would be capable of adding that conversion stage, if they needed it, to any project that they wanted to tack onto the radio. FOr instance, if I wanted to use that good 250KHz mechanical filter I have lying around, I'd have to add a conversion stage to use it with just about any radio. *But with a 455KHz jack, I'd only have to convert to 250KHz. If all the radio had was a 12KHz jack, something I don't need, I'd have to convert that back up to 250KHz externally, adding another stage of unwanted and unnneded conversion. * * Michael Michael, That sounds interesting. It sounds like someone could write a book called Electronic Projects Using The IF Output Jack. FM detector sounded interesting. Is there any 455 kHz to 12 kHz DRM converters out there or can anyone could help me link to some. Thanks. |
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