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#1
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"CPB/NPR to Fit Square HD Peg Into Round Hole"
"First, National Public Radio (through the CPB) has already extensively studied this issue, more than anyone else in the industry, and the results are pretty unequivocal that increasing the power of a station's FM digital signal will adversely affect not only its own analog host-signal, but also those of neighboring stations. So much so, in fact, that the (first) study's coordinating engineer has admitted in other fora that an increase in HD sideband power levels is much more likely to do harm than good." http://www.diymedia.net/archive/0409.htm#042909 Bob, we know that Ford and your other 2010 automaker announcements (cough, cough) are waiting on the reults of the 10 db power increase - ain't going to happen, dude! Also, no one will be able to afford it: "Upping HD Radio signal strengths" "The short math given what we know today is that it will cost roughly double on the transmission end to increase HD Radio FM power tenfold. There are likely to be additional costs for cooling and air handling as well, in order to dissipate the excess energy required to get out another 10 dB in HD Radio signal. And, for some higher powered stations, existing HD Radio configurations may not be able to handle the power load, which could add to the cost and complexity of increasing HD Radio beyond its current power level... Also worth considering is existing transmitter combiner technology and whether or not it can support the added demands of increasing HD Radio broadcasts another 10 dB. If not, then it’s very likely that stations at the higher power levels will need to factor in a new antenna system that can support HD Radio, rather than piggyback onto their existing FM antenna system. At the higher powers, especially, an immediate 10 dB increase in HD Radio signal may be cost prohibitive... This will typically mean the addition of another similarly rated transmitter (using a combining technique) or the purchase of a new transmitter of roughly twice today’s power level." http://tinyurl.com/cfbrtq When this is over, Bob, all you will have left is your KRI Armband Portable HD Radio boat-anchor - what are you going to use as an antenna - the headphones? LOL, dude! |
#2
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On May 1, 12:13*pm, wrote:
"CPB/NPR to Fit Square HD Peg Into Round Hole" "First, National Public Radio (through the CPB) has already extensively studied this issue, more than anyone else in the industry, and the results are pretty unequivocal that increasing the power of a station's FM digital signal will adversely affect not only its own analog host-signal, but also those of neighboring stations. So much so, in fact, that the (first) study's coordinating engineer has admitted in other fora that an increase in HD sideband power levels is much more likely to do harm than good." http://www.diymedia.net/archive/0409.htm#042909 Bob, we know that Ford and your other 2010 automaker announcements (cough, cough) are waiting on the reults of the 10 db power increase - ain't going to happen, dude! Also, no one will be able to afford it: "Upping HD Radio signal strengths" "The short math given what we know today is that it will cost roughly double on the transmission end to increase HD Radio FM power tenfold. There are likely to be additional costs for cooling and air handling as well, in order to dissipate the excess energy required to get out another 10 dB in HD Radio signal. And, for some higher powered stations, existing HD Radio configurations may not be able to handle the power load, which could add to the cost and complexity of increasing HD Radio beyond its current power level... Also worth considering is existing transmitter combiner technology and whether or not it can support the added demands of increasing HD Radio broadcasts another 10 dB. If not, then it’s very likely that stations at the higher power levels will need to factor in a new antenna system that can support HD Radio, rather than piggyback onto their existing FM antenna system. At the higher powers, especially, an immediate 10 dB increase in HD Radio signal may be cost prohibitive... This will typically mean the addition of another similarly rated transmitter (using a combining technique) or the purchase of a new transmitter of roughly twice today’s power level." http://tinyurl.com/cfbrtq When this is over, Bob, all you will have left is your KRI Armband Portable HD Radio boat-anchor *- what are you going to use as an antenna - the headphones? LOL, dude! When the NPR 10db Power Increase happens; then KQED-FM 88.5 MHz will not only be in Stereo with a Blinking Blue Light {almost HD}; will then have a Solid Blue Light {Strong Digital Siginal} from SFBA to Twain Harte, CA roughly 120 On-the-Air Miles. bring on the fm hd-radio power increase sounds like good news to me ~ RHF |
#3
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On May 1, 6:16*pm, "~ RHF" wrote:
On May 1, 12:13*pm, wrote: "CPB/NPR to Fit Square HD Peg Into Round Hole" "First, National Public Radio (through the CPB) has already extensively studied this issue, more than anyone else in the industry, and the results are pretty unequivocal that increasing the power of a station's FM digital signal will adversely affect not only its own analog host-signal, but also those of neighboring stations. So much so, in fact, that the (first) study's coordinating engineer has admitted in other fora that an increase in HD sideband power levels is much more likely to do harm than good." http://www.diymedia.net/archive/0409.htm#042909 Bob, we know that Ford and your other 2010 automaker announcements (cough, cough) are waiting on the reults of the 10 db power increase - ain't going to happen, dude! Also, no one will be able to afford it: "Upping HD Radio signal strengths" "The short math given what we know today is that it will cost roughly double on the transmission end to increase HD Radio FM power tenfold. There are likely to be additional costs for cooling and air handling as well, in order to dissipate the excess energy required to get out another 10 dB in HD Radio signal. And, for some higher powered stations, existing HD Radio configurations may not be able to handle the power load, which could add to the cost and complexity of increasing HD Radio beyond its current power level... Also worth considering is existing transmitter combiner technology and whether or not it can support the added demands of increasing HD Radio broadcasts another 10 dB. If not, then it’s very likely that stations at the higher power levels will need to factor in a new antenna system that can support HD Radio, rather than piggyback onto their existing FM antenna system. At the higher powers, especially, an immediate 10 dB increase in HD Radio signal may be cost prohibitive... This will typically mean the addition of another similarly rated transmitter (using a combining technique) or the purchase of a new transmitter of roughly twice today’s power level." http://tinyurl.com/cfbrtq When this is over, Bob, all you will have left is your KRI Armband Portable HD Radio boat-anchor *- what are you going to use as an antenna - the headphones? LOL, dude! When the NPR 10db Power Increase happens; then KQED-FM 88.5 MHz will not only be in Stereo with a Blinking Blue Light {almost HD}; will then have a Solid Blue Light {Strong Digital Siginal} from SFBA to Twain Harte, CA roughly 120 On-the-Air Miles. bring on the fm hd-radio power increase sounds like good news to me ~ RHF *.- Hide quoted text - - Show quoted text - Looks like you are an analog radio hater - the 10db isn't going to happen. |
#4
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On May 1, 7:41*pm, PocketRadio wrote:
On May 1, 6:16*pm, "~ RHF" wrote: On May 1, 12:13*pm, wrote: "CPB/NPR to Fit Square HD Peg Into Round Hole" "First, National Public Radio (through the CPB) has already extensively studied this issue, more than anyone else in the industry, and the results are pretty unequivocal that increasing the power of a station's FM digital signal will adversely affect not only its own analog host-signal, but also those of neighboring stations. So much so, in fact, that the (first) study's coordinating engineer has admitted in other fora that an increase in HD sideband power levels is much more likely to do harm than good." http://www.diymedia.net/archive/0409.htm#042909 Bob, we know that Ford and your other 2010 automaker announcements (cough, cough) are waiting on the reults of the 10 db power increase - ain't going to happen, dude! Also, no one will be able to afford it: "Upping HD Radio signal strengths" "The short math given what we know today is that it will cost roughly double on the transmission end to increase HD Radio FM power tenfold. There are likely to be additional costs for cooling and air handling as well, in order to dissipate the excess energy required to get out another 10 dB in HD Radio signal. And, for some higher powered stations, existing HD Radio configurations may not be able to handle the power load, which could add to the cost and complexity of increasing HD Radio beyond its current power level... Also worth considering is existing transmitter combiner technology and whether or not it can support the added demands of increasing HD Radio broadcasts another 10 dB. If not, then it’s very likely that stations at the higher power levels will need to factor in a new antenna system that can support HD Radio, rather than piggyback onto their existing FM antenna system. At the higher powers, especially, an immediate 10 dB increase in HD Radio signal may be cost prohibitive... This will typically mean the addition of another similarly rated transmitter (using a combining technique) or the purchase of a new transmitter of roughly twice today’s power level." http://tinyurl.com/cfbrtq When this is over, Bob, all you will have left is your KRI Armband Portable HD Radio boat-anchor *- what are you going to use as an antenna - the headphones? LOL, dude! When the NPR 10db Power Increase happens; then KQED-FM 88.5 MHz will not only be in Stereo with a Blinking Blue Light {almost HD}; will then have a Solid Blue Light {Strong Digital Siginal} from SFBA to Twain Harte, CA roughly 120 On-the-Air Miles. bring on the fm hd-radio power increase sounds like good news to me ~ RHF *.- Hide quoted text - - Show quoted text - Looks like you are an analog radio hater - the 10db isn't going to happen. While I don't 'think' HD-Radio makes sense on the AM-MW Band. I do 'think' that HD-Radio and HD2 Channels make sense on the FM Radio Band. AM & FM are Two Different Radio Bands with Two Different Sets of Technical Parameters. The Future of FM Radio is Two Fold : * FM HD-Radio + HD2 Channels * An Expanded FM HD-Radio Band {76~88 MHx} PocketRadio it is 'you' who is the New Media Shill and an AM-FM {Terrestrial} Radio Hater ~ RHF |
#5
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~ RHF wrote:
While I don't 'think' HD-Radio makes sense on the AM-MW Band. I do 'think' that HD-Radio and HD2 Channels make sense on the FM Radio Band. AM & FM are Two Different Radio Bands with Two Different Sets of Technical Parameters. The Future of FM Radio is Two Fold : * FM HD-Radio + HD2 Channels * An Expanded FM HD-Radio Band {76~88 MHx} You live in the boonies. FM IBOC takes up 3 analog channels. We don't have that much space on the dial here in the big cities. The smaller stations get wiped off the face of the dial. |
#6
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![]() "dave" wrote in message m... You live in the boonies. FM IBOC takes up 3 analog channels. We don't have that much space on the dial here in the big cities. The smaller stations get wiped off the face of the dial. They could never run IBOC here.. not on AM, not on FM. As I tune across my car radio there are maybe 5 or 6 spots on the entire dial that do not have first adjacent channels. |
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