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#1
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#2
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On Nov 16, 7:43 pm, Telamon
wrote: In article , wrote: On Nov 16, 9:54 am, Bart Bailey wrote: In posted on Fri, 16 Nov 2007 03:54:03 -0800 (PST), Steve wrote: Begin On Nov 16, 12:03 am, Bart Bailey wrote: In But isn't knob twirling and button pushing an accepted part of the allure of SW DXing?- Hide quoted text - - Show quoted text - Yes, it's accepted. It's accepted because it's inevitable, but I don't think anyone wants to there to be any more knob twiddling and button pushing than is necessary to get the job done. My point was that playing with the knobs and features is an integral component of the joy of 'digging 'em out', otherwise someone would just tune to a local broadcast for set it and forget it entertainment. Here is the short explanation. Old farts can't handle the ar7030 menus. if you understand computers, the menus are not an issue. What the menus do buy you is a compact radio, since you don't need all the space for buttons and knobs. Again, I'll repeat, I never use the remote. The menus are quite easy to use. Look I've been through this. I have purchased 10's of millions of dollars in test equipment that operate in different ways and the preference that all users of that equipment have shown to me is a knob or button for every function. People do not want to go through menus to get to some operating function. These people are engineers and technicians. And I'll repeat that if you don't use the remote you are just plain dumb. Sure the menus are just fine but you can push a button on the remote that take several button pushes on the front panel so why go that route. -- Telamon Ventura, California Eh, I've bought my share of test eq too. I like the menus if they are done well. Hp started to use soft buttons in the 80s and hasn't gone back. |
#3
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#4
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On Nov 17, 2:27 pm, Telamon
wrote: In article , wrote: On Nov 16, 7:43 pm, Telamon wrote: In article , wrote: On Nov 16, 9:54 am, Bart Bailey wrote: In .com posted on Fri, 16 Nov 2007 03:54:03 -0800 (PST), Steve wrote: Begin On Nov 16, 12:03 am, Bart Bailey wrote: In But isn't knob twirling and button pushing an accepted part of the allure of SW DXing?- Hide quoted text - - Show quoted text - Yes, it's accepted. It's accepted because it's inevitable, but I don't think anyone wants to there to be any more knob twiddling and button pushing than is necessary to get the job done. My point was that playing with the knobs and features is an integral component of the joy of 'digging 'em out', otherwise someone would just tune to a local broadcast for set it and forget it entertainment. Here is the short explanation. Old farts can't handle the ar7030 menus. if you understand computers, the menus are not an issue. What the menus do buy you is a compact radio, since you don't need all the space for buttons and knobs. Again, I'll repeat, I never use the remote. The menus are quite easy to use. Look I've been through this. I have purchased 10's of millions of dollars in test equipment that operate in different ways and the preference that all users of that equipment have shown to me is a knob or button for every function. People do not want to go through menus to get to some operating function. These people are engineers and technicians. And I'll repeat that if you don't use the remote you are just plain dumb. Sure the menus are just fine but you can push a button on the remote that take several button pushes on the front panel so why go that route. Eh, I've bought my share of test eq too. I like the menus if they are done well. Hp started to use soft buttons in the 80s and hasn't gone back. Yes and since HP, then Agilent went the way of the menu they lost a lot of sales to Anritsu that made comparable equipment with a knob or button for every function. Personally I didn't care but most other people did care and so it goes. -- Telamon Ventura, California Oh please. If you don't see Agilent gear in the lab, it's Rhodes and Schwartz. |
#5
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#6
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This thread seems to have migrated from a DSP vs. analog discussion to
one of ergonomics of buttons/knobs vs. menus. What I'd really like to know is if there's any significant reason to prefer a DSP-based receiver (e.g. the 756Pro-III) over an analog receiver (e.g. AOR 7030+) on the basic of receiving performance. Here's where I perceive DSP receivers to have the advantage: * Sharper, narrower filters without artifacts (e.g. ringing) * Easy updates via software download (TenTec supports this, does Icom? (I doubt it)) and for analog: * Higher dynamic range than most DSP receivers * Lower cost (typically) * Better audio I had a chance to sit down and use a 756Pro-III for a few hours this weekend, and I must say the spectrum scope is an addictive feature! |
#7
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On Nov 19, 2:25 pm, wrote:
This thread seems to have migrated from a DSP vs. analog discussion to one of ergonomics of buttons/knobs vs. menus. What I'd really like to know is if there's any significant reason to prefer a DSP-based receiver (e.g. the 756Pro-III) over an analog receiver (e.g. AOR 7030+) on the basic of receiving performance. Here's where I perceive DSP receivers to have the advantage: * Sharper, narrower filters without artifacts (e.g. ringing) * Easy updates via software download (TenTec supports this, does Icom? (I doubt it)) and for analog: * Higher dynamic range than most DSP receivers * Lower cost (typically) * Better audio I had a chance to sit down and use a 756Pro-III for a few hours this weekend, and I must say the spectrum scope is an addictive feature! Digital filters ring unless they are sloppy. IIR filters ring. FIR filters don't ring IF the tap coefficients are all positive, but then the filter is sloppy. With DSP you have more control over the bandwidth, but no freedom from ringing. I don't think the 7030 is all that cheap once you buy the filter daughter board and some crystal filters. The filters don't just materialize in the radio. You need to solder them or pay someone to do it. |
#8
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VistaCruiser1 asked:
What I'd really like to know is if there's any significant reason to prefer a DSP-based receiver (e.g. the 756Pro-III) over an analog receiver (e.g. AOR 7030+) on the basic of receiving performance. Here's where I perceive DSP receivers to have the advantage: * Sharper, narrower filters without artifacts (e.g. ringing) * Easy updates via software download (TenTec supports this, does Icom? (I doubt it)) and for analog: * Higher dynamic range than most DSP receivers * Lower cost (typically) * Better audio _________________________________________ Certainly the filters on the Icom 756 PRO III are just awesome - they don't come much better than that. The only filters I ever knew "rang" where on very narrow mechanical filters such as you would use on CW, that is on analogue radio's. On the 756Pro3 you will get absolutely no ringing at all, even on the narrowest CW filter settings, and the number of 756Pro3 users who are ecstatic about the filter performance on CW are well listed in the eHam reviews, of which there are hundreds of happy owners. See: http://www.eham.net/reviews/detail/4635 No, the 756Pro3 is not firmware upgradeable, but it is the third incarnation of this radio and you will see the very many users on eHam who rave about it. As for getting a radio with the highest dynamic range, I would say that this is an overated feature. One of my DX pals had a radio with 93dB of close in performance and I never saw him post logs any better than anyone else. On the other hand, many of the top DXer's are now using SDR radio's which have a significantly lower close in performance, yet they are achieving the most amazing results. The close in of the 7030 is 82dB vs that of the 756Pro3 being 78dB (as tested by QST) - you will never notice the difference in practical use. As for audio, it was true of the early Icom offerings that their audio was poor, but the latest batch, including the 756Pro3 are very much better. In fact if you place the 7030 side by side with the 756Pro3 and play them alternatively through a good outboard speaker, I am willing to bet you will find the 756 audio better = it's really very good. Then we have price: yes, the 756Pro3 is expensive, but I never saw on any of the eHam reviews anyone claiming it was not value for money. I have owned mine for three years now and the shock of the high price has long since worn off after experiencing the pleasure of owning one of the finest performing and engineered radio's in the world. However, if price is a major consideration, then consider as an alternative the Icom 746Pro, which is considerably cheaper at about $1,600 - a very good buy and the identical engine as that used in the 756Pro3. Finally, if you are considering an SDR (many serious DXer's have already moved into these, especially the older SDR-IQ), then the only show in town at the moment is the Italian Perseus - it will land you at about $1000 and has some great features with performance to match. Remember, if you choose the 7030+ you are buying yesterday's technology, the radio has been on the market for about twelve years now. 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, Redsun RP2100 BW XCR 30, Sangean 803A. GE circa 50's radiogram Antenna's RF Systems DX 1 Pro Mk II, Datong AD-270 Kiwa MW Loop, PAORDT Roelof mini-whip http://www.dxing.info/about/dxers/plimmer.dx On Nov 20, 12:25 am, wrote: This thread seems to have migrated from a DSP vs. analog discussion to one of ergonomics of buttons/knobs vs. menus. What I'd really like to know is if there's any significant reason to prefer a DSP-based receiver (e.g. the 756Pro-III) over an analog receiver (e.g. AOR 7030+) on the basic of receiving performance. Here's where I perceive DSP receivers to have the advantage: * Sharper, narrower filters without artifacts (e.g. ringing) * Easy updates via software download (TenTec supports this, does Icom? (I doubt it)) and for analog: * Higher dynamic range than most DSP receivers * Lower cost (typically) * Better audio I had a chance to sit down and use a 756Pro-III for a few hours this weekend, and I must say the spectrum scope is an addictive feature! |
#9
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In article ,
David wrote: On Sun, 18 Nov 2007 23:26:01 -0800 (PST), wrote: Yes and since HP, then Agilent went the way of the menu they lost a lot of sales to Anritsu that made comparable equipment with a knob or button for every function. Personally I didn't care but most other people did care and so it goes. -- Telamon Ventura, California Oh please. If you don't see Agilent gear in the lab, it's Rhodes and Schwartz. My Anritsu is lousy with soft keys. Must be something newer then what I was buying. The Anritsu equipment I bought had a knob or button for every function but they may have gone the soft-keys around the screen method. Probably runs Window$ also. -- Telamon Ventura, California |
#10
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On Mon, 19 Nov 2007 18:59:36 -0800, Telamon
wrote: In article , David wrote: On Sun, 18 Nov 2007 23:26:01 -0800 (PST), wrote: Yes and since HP, then Agilent went the way of the menu they lost a lot of sales to Anritsu that made comparable equipment with a knob or button for every function. Personally I didn't care but most other people did care and so it goes. -- Telamon Ventura, California Oh please. If you don't see Agilent gear in the lab, it's Rhodes and Schwartz. My Anritsu is lousy with soft keys. Must be something newer then what I was buying. The Anritsu equipment I bought had a knob or button for every function but they may have gone the soft-keys around the screen method. Probably runs Window$ also. It's too slow for tuning cavities but it makes superb measurements. 6 markers! http://www.us.anritsu.com/downloads/...1410-00251.pdf |
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