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#11
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usually not myself but I do give recommendations, what receiver is in
question ? "Lisa Simpson" wrote in message .. . Mike - do you upgrade/improve/tune others' receivers? "mike maghakian" wrote in message . .. he says that with filter upgrades the R-1000 would be a very nice receiver I have pointed out many times publically that almost every receiver below $1000 new except the Drake R8 series and SW-8 series made in the past 25 years needs some serious filter upgrades. Some were available as manufacturer upgrades as in the Kenwood R-5000 but not cheaply in that case ! I have been on a mostly unsuccessful campaign to better the Radio world with better selectivity but most people don't understand or care it seems. I have also tried to explain that the $20 Kiwa filter is a poor choice to upgrade to but people still go crazy for them when there are better options available for LESS money !!!!!! Maybe because it is more work to do it better is the answer ? Most people would not believe the improvements in reception when filters in most sets are upgraded. I even upgraded the filters in my beloved HF-225 and improved the performance. I do touch upon filters in my DX-394 article that can be found on my web site http://home.comcast.net/~maghakian the DX-394 with proper filters and few minor fixes is a real nice radio. The Kiwa filter is really not the way to improve this set. It is just another cheap filter with a tighter nose that cuts out the hets but other important parameters are still junk. Not to say that other Kiwa products are not great, I use a Kiwa Preamp for example. wrote in message oups.com... This is certainly an informative discussion, as I had read and rationalized that the later FRG-7 with Fine Tuning would be the more desirable unit. Thanks for educating us on that, Pete! BTW, Mike, what does that book say about the Kenwood R-1000? I enjoy mine but it does have some flaws the way it was out of the box originally, definitely needs some modifications to be all that it can be. mike maghakian wrote: I can scan some of the pages from his book if you would like to read his opinions. he not only measures the receivers but he uses them for a while and gives several pages of comments on each one. he also devotes a page or two to his test station and I can send that also also remember this book was written in about 1984 for whatever that is worth "Pete KE9OA" wrote in message . .. Hi John, I had variable experience with the FRG-7, depending on which iteration that I had. I remember that when using an 8 foot diameter untuned loop, MW reception was very good with no signs of intermod. Under these same conditions with a later iteration (I had both units at the same time), there would be a marked increase in the noise floor as you approached a strong signal. It almost sounds as if there were very high noise sidebands coming from the 1st LO, in turn causing reciprocal mixing. I must apologize to Mike M for jumping a bit hard on his comments. I've talked directly to him over the phone in the past and he is an ok person, but unless you actually make test measurements yourself you never know actual test conditions. Please accept my apology Mike...............it was one of those 18 hour work days. Pete "John Plimmer" wrote in message ... I owned an FRG-7 for a year but passed it on as being useless due to it's poor filters and intermods. But there is always the exception, in Cape Town is a DX friend of mine who swears by his Frog and leaves his awesome Drake R7 on the shelf. He is one of the world,s most accomplished MW DXer's and says the Frog delivers such superior audio on the really faint DX catches that he will not upgrade to a more modern high end receiver - go figure! He runs rings around us with our more modern RX's..!!! I also owned a FRG-8800 for a couple of years - another useless receiver that I was glad to get rid of. On Robert Sherwood's http://www.sherweng.com/table.html he tested it and the filters were so poor he couldn't even get a measurement. -- John Plimmer, Montagu, Western Cape Province, South Africa South 33 d 47 m 32 s, East 20 d 07 m 32 s RX Icom IC-756 PRO III with MW mods Drake SW8 & ERGO software Sony 7600D GE SRIII BW XCR 30, Braun T1000, Sangean 818 & 803A. GE circa 50's radiogram Antenna's RF Systems DX 1 Pro, Datong AD-270 Kiwa MW Loop http://www.dxing.info/about/dxers/plimmer.dx "mike maghakian" wrote in message ... I thought I would dig up some numbers to back up what I have said for years, the FRG-7 is grossly over rated. These stats are measured in the lab of the great Ranier Lichte in his awesome book "radio receiver, chance or choice" the best review book ever written in the history of shortwave radio. In fact I just modified one of my copies to make it easy to scan reviews to mail to people for proof of what I say. FRG-7 FRG-7700 FRG-8800 SW sens (uV) 2.1 2.1 1.1 3rd order ICP (dBm) -25 -10 +3 selectivity (-6/60) 3.2/8.8 *1 3/7 + 7/18 *1 Wide 11/26 Norm 5.2/13.5 Narr 2.6/8.2 In every category of these most important specs, the FRG-7 loses. In fact the 3rd order ICP is pretty BAD !!!!!! The facts speak for themselves, the reputation of the FRG-7 is not based on reality but fantasy. I am not crazy about the selectivity of the stock units of any of the FRG's so my FRG-7 and my FRG-7700 both have mechanical filters and the 7700 has an upgraded ceramic as well. But the 7 selectivity is way too limited for the real world ! And the 7700 and 8800 both sound really NICE !!!! |
#12
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On Sun, 14 May 2006 15:38:17 -0700, "mike maghakian"
wrote: he says that with filter upgrades the R-1000 would be a very nice receiver I have pointed out many times publically that almost every receiver below $1000 new except the Drake R8 series and SW-8 series made in the past 25 years needs some serious filter upgrades. Some were available as manufacturer upgrades as in the Kenwood R-5000 but not cheaply in that case ! I have been on a mostly unsuccessful campaign to better the Radio world with better selectivity but most people don't understand or care it seems. I have also tried to explain that the $20 Kiwa filter is a poor choice to upgrade to but people still go crazy for them when there are better options available for LESS money !!!!!! Maybe because it is more work to do it better is the answer ? Most people would not believe the improvements in reception when filters in most sets are upgraded. I even upgraded the filters in my beloved HF-225 and improved the performance. I do touch upon filters in my DX-394 article that can be found on my web site http://home.comcast.net/~maghakian the DX-394 with proper filters and few minor fixes is a real nice radio. The Kiwa filter is really not the way to improve this set. It is just another cheap filter with a tighter nose that cuts out the hets but other important parameters are still junk. Not to say that other Kiwa products are not great, I use a Kiwa Preamp for example. wrote in message roups.com... This is certainly an informative discussion, as I had read and rationalized that the later FRG-7 with Fine Tuning would be the more desirable unit. Thanks for educating us on that, Pete! BTW, Mike, what does that book say about the Kenwood R-1000? I enjoy mine but it does have some flaws the way it was out of the box originally, definitely needs some modifications to be all that it can be. mike maghakian wrote: I can scan some of the pages from his book if you would like to read his opinions. he not only measures the receivers but he uses them for a while and gives several pages of comments on each one. he also devotes a page or two to his test station and I can send that also also remember this book was written in about 1984 for whatever that is worth "Pete KE9OA" wrote in message . .. Hi John, I had variable experience with the FRG-7, depending on which iteration that I had. I remember that when using an 8 foot diameter untuned loop, MW reception was very good with no signs of intermod. Under these same conditions with a later iteration (I had both units at the same time), there would be a marked increase in the noise floor as you approached a strong signal. It almost sounds as if there were very high noise sidebands coming from the 1st LO, in turn causing reciprocal mixing. I must apologize to Mike M for jumping a bit hard on his comments. I've talked directly to him over the phone in the past and he is an ok person, but unless you actually make test measurements yourself you never know actual test conditions. Please accept my apology Mike...............it was one of those 18 hour work days. Pete "John Plimmer" wrote in message ... I owned an FRG-7 for a year but passed it on as being useless due to it's poor filters and intermods. But there is always the exception, in Cape Town is a DX friend of mine who swears by his Frog and leaves his awesome Drake R7 on the shelf. He is one of the world,s most accomplished MW DXer's and says the Frog delivers such superior audio on the really faint DX catches that he will not upgrade to a more modern high end receiver - go figure! He runs rings around us with our more modern RX's..!!! I also owned a FRG-8800 for a couple of years - another useless receiver that I was glad to get rid of. On Robert Sherwood's http://www.sherweng.com/table.html he tested it and the filters were so poor he couldn't even get a measurement. -- John Plimmer, Montagu, Western Cape Province, South Africa South 33 d 47 m 32 s, East 20 d 07 m 32 s RX Icom IC-756 PRO III with MW mods Drake SW8 & ERGO software Sony 7600D GE SRIII BW XCR 30, Braun T1000, Sangean 818 & 803A. GE circa 50's radiogram Antenna's RF Systems DX 1 Pro, Datong AD-270 Kiwa MW Loop http://www.dxing.info/about/dxers/plimmer.dx "mike maghakian" wrote in message ... I thought I would dig up some numbers to back up what I have said for years, the FRG-7 is grossly over rated. These stats are measured in the lab of the great Ranier Lichte in his awesome book "radio receiver, chance or choice" the best review book ever written in the history of shortwave radio. In fact I just modified one of my copies to make it easy to scan reviews to mail to people for proof of what I say. FRG-7 FRG-7700 FRG-8800 SW sens (uV) 2.1 2.1 1.1 3rd order ICP (dBm) -25 -10 +3 selectivity (-6/60) 3.2/8.8 *1 3/7 + 7/18 *1 Wide 11/26 Norm 5.2/13.5 Narr 2.6/8.2 In every category of these most important specs, the FRG-7 loses. In fact the 3rd order ICP is pretty BAD !!!!!! The facts speak for themselves, the reputation of the FRG-7 is not based on reality but fantasy. I am not crazy about the selectivity of the stock units of any of the FRG's so my FRG-7 and my FRG-7700 both have mechanical filters and the 7700 has an upgraded ceramic as well. But the 7 selectivity is way too limited for the real world ! And the 7700 and 8800 both sound really NICE !!!! |
#13
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I have a DX-394, a DX-302, a Sangean ATS-803A that I'd like tweaked, tuned
and upgraded. I also have a DX-160 but honestly think I'll get rid of it; it makes no sense & doesn't seem to be any better than any of the other receivers I have "mike maghakian" wrote in message ... usually not myself but I do give recommendations, what receiver is in question ? "Lisa Simpson" wrote in message .. . Mike - do you upgrade/improve/tune others' receivers? "mike maghakian" wrote in message . .. he says that with filter upgrades the R-1000 would be a very nice receiver I have pointed out many times publically that almost every receiver below $1000 new except the Drake R8 series and SW-8 series made in the past 25 years needs some serious filter upgrades. Some were available as manufacturer upgrades as in the Kenwood R-5000 but not cheaply in that case ! I have been on a mostly unsuccessful campaign to better the Radio world with better selectivity but most people don't understand or care it seems. I have also tried to explain that the $20 Kiwa filter is a poor choice to upgrade to but people still go crazy for them when there are better options available for LESS money !!!!!! Maybe because it is more work to do it better is the answer ? Most people would not believe the improvements in reception when filters in most sets are upgraded. I even upgraded the filters in my beloved HF-225 and improved the performance. I do touch upon filters in my DX-394 article that can be found on my web site http://home.comcast.net/~maghakian the DX-394 with proper filters and few minor fixes is a real nice radio. The Kiwa filter is really not the way to improve this set. It is just another cheap filter with a tighter nose that cuts out the hets but other important parameters are still junk. Not to say that other Kiwa products are not great, I use a Kiwa Preamp for example. wrote in message oups.com... This is certainly an informative discussion, as I had read and rationalized that the later FRG-7 with Fine Tuning would be the more desirable unit. Thanks for educating us on that, Pete! BTW, Mike, what does that book say about the Kenwood R-1000? I enjoy mine but it does have some flaws the way it was out of the box originally, definitely needs some modifications to be all that it can be. mike maghakian wrote: I can scan some of the pages from his book if you would like to read his opinions. he not only measures the receivers but he uses them for a while and gives several pages of comments on each one. he also devotes a page or two to his test station and I can send that also also remember this book was written in about 1984 for whatever that is worth "Pete KE9OA" wrote in message . .. Hi John, I had variable experience with the FRG-7, depending on which iteration that I had. I remember that when using an 8 foot diameter untuned loop, MW reception was very good with no signs of intermod. Under these same conditions with a later iteration (I had both units at the same time), there would be a marked increase in the noise floor as you approached a strong signal. It almost sounds as if there were very high noise sidebands coming from the 1st LO, in turn causing reciprocal mixing. I must apologize to Mike M for jumping a bit hard on his comments. I've talked directly to him over the phone in the past and he is an ok person, but unless you actually make test measurements yourself you never know actual test conditions. Please accept my apology Mike...............it was one of those 18 hour work days. Pete "John Plimmer" wrote in message ... I owned an FRG-7 for a year but passed it on as being useless due to it's poor filters and intermods. But there is always the exception, in Cape Town is a DX friend of mine who swears by his Frog and leaves his awesome Drake R7 on the shelf. He is one of the world,s most accomplished MW DXer's and says the Frog delivers such superior audio on the really faint DX catches that he will not upgrade to a more modern high end receiver - go figure! He runs rings around us with our more modern RX's..!!! I also owned a FRG-8800 for a couple of years - another useless receiver that I was glad to get rid of. On Robert Sherwood's http://www.sherweng.com/table.html he tested it and the filters were so poor he couldn't even get a measurement. -- John Plimmer, Montagu, Western Cape Province, South Africa South 33 d 47 m 32 s, East 20 d 07 m 32 s RX Icom IC-756 PRO III with MW mods Drake SW8 & ERGO software Sony 7600D GE SRIII BW XCR 30, Braun T1000, Sangean 818 & 803A. GE circa 50's radiogram Antenna's RF Systems DX 1 Pro, Datong AD-270 Kiwa MW Loop http://www.dxing.info/about/dxers/plimmer.dx "mike maghakian" wrote in message ... I thought I would dig up some numbers to back up what I have said for years, the FRG-7 is grossly over rated. These stats are measured in the lab of the great Ranier Lichte in his awesome book "radio receiver, chance or choice" the best review book ever written in the history of shortwave radio. In fact I just modified one of my copies to make it easy to scan reviews to mail to people for proof of what I say. FRG-7 FRG-7700 FRG-8800 SW sens (uV) 2.1 2.1 1.1 3rd order ICP (dBm) -25 -10 +3 selectivity (-6/60) 3.2/8.8 *1 3/7 + 7/18 *1 Wide 11/26 Norm 5.2/13.5 Narr 2.6/8.2 In every category of these most important specs, the FRG-7 loses. In fact the 3rd order ICP is pretty BAD !!!!!! The facts speak for themselves, the reputation of the FRG-7 is not based on reality but fantasy. I am not crazy about the selectivity of the stock units of any of the FRG's so my FRG-7 and my FRG-7700 both have mechanical filters and the 7700 has an upgraded ceramic as well. But the 7 selectivity is way too limited for the real world ! And the 7700 and 8800 both sound really NICE !!!! |
#14
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properly modified the DX-394 is really nice, there is some dispute over the
proper way to do that but you can see some of my views on my website http://home.comcast.net/~maghakian "Lisa Simpson" wrote in message . .. I have a DX-394, a DX-302, a Sangean ATS-803A that I'd like tweaked, tuned and upgraded. I also have a DX-160 but honestly think I'll get rid of it; it makes no sense & doesn't seem to be any better than any of the other receivers I have |
#15
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so, will you modify/tune the DX-394, or can you recommend another? Also
same question for the other receivers . . . "mike maghakian" wrote in message . .. properly modified the DX-394 is really nice, there is some dispute over the proper way to do that but you can see some of my views on my website http://home.comcast.net/~maghakian "Lisa Simpson" wrote in message . .. I have a DX-394, a DX-302, a Sangean ATS-803A that I'd like tweaked, tuned and upgraded. I also have a DX-160 but honestly think I'll get rid of it; it makes no sense & doesn't seem to be any better than any of the other receivers I have |
#16
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the others are not worth modifying at all.
as for the DX-394, the person who does work I don't want to do is unavailable for the next month or so. let me see what I can come up with. "Lisa Simpson" wrote in message .. . so, will you modify/tune the DX-394, or can you recommend another? Also same question for the other receivers . . . "mike maghakian" wrote in message . .. properly modified the DX-394 is really nice, there is some dispute over the proper way to do that but you can see some of my views on my website http://home.comcast.net/~maghakian "Lisa Simpson" wrote in message . .. I have a DX-394, a DX-302, a Sangean ATS-803A that I'd like tweaked, tuned and upgraded. I also have a DX-160 but honestly think I'll get rid of it; it makes no sense & doesn't seem to be any better than any of the other receivers I have |
#17
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I think most of us would agree that the FRG-7 when introduced in 1976
was a respectable receiver that was capable of very good performance with controlled drift and reasonably accurate frequency display. It could and did allow many SWL's to catch a lot of stations and it was good enough that a whole cottage industry popped up to offer the inevitable improvements to a very good basic platform. However, receiver design has improved a lot over three decades and the FRG-7's age shows when compared to more updated designs from Yaesu, Kenwood, etc. Still, in the hands of a competent SWL who knows the bands and and his equipment it can be counted on to deliver a lot of stations if the swl is willing to live without many modern features. Like many of us, I enjoy using a receiver from years past. It's fun to spin the knobs and dial up stations on some classic like a Kendood R300, Yaesu FRG7, Realistic DX150B or even a National HRO500 or Hammarlund 180. It's always fun, but after a while it becomes clear that such receivers are also fine benchmarks from which to measure how far receiver technology has advanced. It proves very little in 2006 to run some kind of a plus/minus scoring system using reams of dated statistics on an even older receiver design. Most of us have dog-eared copies of Lichte's books, have read the Sherwood tables and generally know all the conclusions about this and other classic receivers by heart. It's worth repeating that a good SWL who knows the bands and conditions and has optimized his equipment could undoubtedly pull in a lot more stations with a FRG-7 than the average knob-twister with his latest high-tech multi-screen digital wunder-receiver. By now, we know you have a lot of receivers on your collection and have access to lots of statistical information. Instead of continually beating up on old designs like the FRG-7 why not back off and enjoy the old stuff for what it is and enjoy the newer stuff at the same time. |
#18
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I guess I should have explained why I made this post as peoples responses
have not been in tune with what I was trying to accomplish. Too many people have been pushing the FRG7 as this fantastic can't go wrong receiver and people new to the hobby or those not knowing what to get, end up getting an FRG-7 overpaying, and thinking it is this fantastic receiver, the best since Armstrong invented the superhet. Well they are mistaken, having been mislead as to what the best receiver for them would be. A newcomer should not start off with an FRG-7, as simple as that. I want inexperienced people not to think the 7 is the best they could do. A newcomer should not have to cope with analog readout and fair selectivity (among other shortcomings) in their main receiver when for a few dollars more they can get a used satellit 800 (fairly easy to get for $300 to $320, tested with warranty) that is an awesome receiver for most people. It is one of my TWO main receivers (+Lowe HF-225). "mike maghakian" wrote in message ... I thought I would dig up some numbers to back up what I have said for years, the FRG-7 is grossly over rated. These stats are measured in the lab of the great Ranier Lichte in his awesome book "radio receiver, chance or choice" the best review book ever written in the history of shortwave radio. In fact I just modified one of my copies to make it easy to scan reviews to mail to people for proof of what I say. FRG-7 FRG-7700 FRG-8800 SW sens (uV) 2.1 2.1 1.1 3rd order ICP (dBm) -25 -10 +3 selectivity (-6/60) 3.2/8.8 *1 3/7 + 7/18 *1 Wide 11/26 Norm 5.2/13.5 Narr 2.6/8.2 In every category of these most important specs, the FRG-7 loses. In fact the 3rd order ICP is pretty BAD !!!!!! The facts speak for themselves, the reputation of the FRG-7 is not based on reality but fantasy. I am not crazy about the selectivity of the stock units of any of the FRG's so my FRG-7 and my FRG-7700 both have mechanical filters and the 7700 has an upgraded ceramic as well. But the 7 selectivity is way too limited for the real world ! And the 7700 and 8800 both sound really NICE !!!! |
#19
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here here!
"mike maghakian" wrote in message . .. I guess I should have explained why I made this post as peoples responses have not been in tune with what I was trying to accomplish. Too many people have been pushing the FRG7 as this fantastic can't go wrong receiver and people new to the hobby or those not knowing what to get, end up getting an FRG-7 overpaying, and thinking it is this fantastic receiver, the best since Armstrong invented the superhet. Well they are mistaken, having been mislead as to what the best receiver for them would be. A newcomer should not start off with an FRG-7, as simple as that. I want inexperienced people not to think the 7 is the best they could do. A newcomer should not have to cope with analog readout and fair selectivity (among other shortcomings) in their main receiver when for a few dollars more they can get a used satellit 800 (fairly easy to get for $300 to $320, tested with warranty) that is an awesome receiver for most people. It is one of my TWO main receivers (+Lowe HF-225). "mike maghakian" wrote in message ... I thought I would dig up some numbers to back up what I have said for years, the FRG-7 is grossly over rated. These stats are measured in the lab of the great Ranier Lichte in his awesome book "radio receiver, chance or choice" the best review book ever written in the history of shortwave radio. In fact I just modified one of my copies to make it easy to scan reviews to mail to people for proof of what I say. FRG-7 FRG-7700 FRG-8800 SW sens (uV) 2.1 2.1 1.1 3rd order ICP (dBm) -25 -10 +3 selectivity (-6/60) 3.2/8.8 *1 3/7 + 7/18 *1 Wide 11/26 Norm 5.2/13.5 Narr 2.6/8.2 In every category of these most important specs, the FRG-7 loses. In fact the 3rd order ICP is pretty BAD !!!!!! The facts speak for themselves, the reputation of the FRG-7 is not based on reality but fantasy. I am not crazy about the selectivity of the stock units of any of the FRG's so my FRG-7 and my FRG-7700 both have mechanical filters and the 7700 has an upgraded ceramic as well. But the 7 selectivity is way too limited for the real world ! And the 7700 and 8800 both sound really NICE !!!! |
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