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Steve,
He won't or can't answer your question. Every Chinese company has "connections" with the Communist Party: In this link are some interesting comments from a corrupt CCP businessman: http://english.epochtimes.com/news/5-1-28/26080.html "dxAce" wrote in message ... wrote: More to the point, what does your question have to do with Degen radios and shortwave listening. [?] It was a legitimate question regarding DEGEN radios. (And other Chinese sets as well) You may not like being reminded that by your purchase you help fund the PLA and help promote slave labour? Got a problem with that, 'tard boy? dxAce Michigan USA I am impressed that the designer of the DE1103 has given us some insight into that radio and more importantly has asked the SWL community for suggestions on how to design a new radio. That is a first for me. I think we should focus this discussion on Degen and their shortwave radios. And I'm sure you agree. dxAce wrote: Joe Analssandrini wrote: Dear Sir, At the risk of posting too much, may I say that I understand that Degen is one of China's leading radio manufacturers. As such, I hope that the design of this radio is a "no-holds-barred" short wave receiver of absolute top quality. Ergonomics especially should be user-friendly. Menu-driven radios are perfectly acceptable IF the owner's manual is comprehensive and complete. (I own an AOR AR7030 Plus, the best performing radio I have ever owned, which I find very easy to use due in part to its superb owner's manual. Though menu-driven, its ergonomics are superb.) NO "FRILLS" (such as a "fake" analog dial) should be on this radio; everything incorporated should be there for a distinct purpose: the best possible reception of the signals desired. I sincerely hope you will take into consideration my suggestion to incorporate the various new terrestrial digital reception modes. It is not necessary (nor, in my opinion, desirable) to incorporate XM or Sirius satellite "pay" reception into this forthcoming radio. Satellite radio can better be served by another separate receiver. As I stated above, ABSOLUTE TOP QUALITY in DESIGN, COMPONENTS, and CONSTRUCTION QUALITY are of PARAMOUNT importance. Degen should market this radio in the USA under its own name. If the radio is a great one, this will give impetus to awareness of the Degen name in the United States. I believe that, if any company can design and market a near-perfect short wave radio, Degen is that company. My question is: What relationship does DEGEN have to the PLA (People's Liberation Army)? dxAce Michigan USA |
DEGEN DE1108 worldband receiver is now in preliminary design stage, any one has recommends on it?
Hello,
The radio should offer: Dual or triple conversion with no less than excellent front-end selectivity. Full coverage from at least 100 kHz to 30000 kHz AM (no gaps), 76-108 MHz FM, and possibly simple air band reception (118-137 Mhz). 4 or 6 rechargeable-NiMH "D"-cell operation with MANUAL switch on back to choose AC or Battery operation (so that AC Adapter need not be unplugged when on battery power). Synchronous-selectable sideband reception is a MUST. Should be designed at least as well as that on the Grundig Satellit 800. Full passband tuning would be even better. Lock must be held as well as on AR7030 model and must automatically turn off when tuning and then re-lock when station is selected. A good notch filter (with at least 50 dB depth) with range of 0.1 - 5 kHz. At least 3 IF filters (bandwidths) (preferably 4) of 2.2 kHz, 4 kHz, 6 kHz (and possibly 1 kHz for data/CW); operation of these filters should be cascaded so that inexpensive ceramic filters will give much better performance than usual. (6 filter bandwidths would be ideal.) All shape factors should be less than 1:2. All parameters should be fully adjustable independently in all modes of reception (except FM and the digital modes). At least 200 memories. Tuning via knob (no "chugging" or muting), "slew" buttons (5 kHz on SW, 9/10 kHz on MW, 9 kHz on LW, and 100 Mhz on FM). Signal-scan automatic tuning. Memory scanning. Automatic memory sorting. Automatic station setup (as on Sangean models) for AM and FM memories. Remote control operation possible with a CORDED detachable remote control (at least 6 feet in length or adaptable to an extension cord if user desires). Dial illumination via LEDs, perhaps color-switchable (Red, Blue, Green). Dial light scheme similar to Grundig Satellit 800. (Always on or always off with AC power, on for 15 seconds with any button push when using battery power, or always off with batteries, as desired by user.) Line outputs for external speaker(s) and stereo system. Excellent sound quality is a must. Independent tone controls (Treble and Bass) should be incorporated. Internal mono speaker of high quality is preferable to mediocre stereo speakers. At least two external antenna inputs for AM/SW (high and low impedence) as well as an FM antenna input. Built-in antennas should be: a LONG (possibly detachable) whip (PLUS a shorter whip possibly optionally offered for travel); a LONG (at least 130 mm) internal ferrite antenna for MW and LW. External antennas to override internal ones. IBOC reception (AM & FM) for the US. Canadian DAB. (Possibly European DAB.) Self-contained DRM (or a 12 kHz IF output to connect to a DRM-equipped computer). Clocks should be RADIO-CONTROLLED (and operated independently from radio and powered via 2 AA or AAA batteries). Two times zones should be available, one of which should be UTC. Local time should be adjustable for daylight-savings time (via radio control) if required; UTC should NOT be affected by DST change. One of the clocks (including seconds) should ALWAYS be visible, radio on or off. No LEDs (except for dial illumination and possibly button illumination). Properly calibrated digital bar graph S-meter of at least 12 segments. A high-quality plastic cabinet or, preferably, a light-weight metal (aluminum or magnesium) cabinet. ALL internal components to be of TOP-QUALITY (formerly known as MIL-spec). Excellent sensitivity; a 3 or 4 step attenuator (or adjustable RF-gain control) should be incorporated. All other specifications to be of Drake R8B/AOR AR7030 caliber, especially blocking, ultimate rejection, image rejection, and, most important, dynamic range. Excellent sensitivity (a 3 or 4 step attenuator would be of help). A carrying case (nylon or leather) should be optionally offered; this should be able to carry AC adapter, batteries, and any other options, as well as fully protecting the radio. Servicing is important. All service information should be made available on line. Guy Atkins has made some important suggestions; his suggestions should be incorporated also. A tall order? Yes. A "perfect" radio? Almost. There has never been anything like it! What should this radio sell for? I would pay $1000 or more for such a radio; could it be manufactured in China for $700? Since this is to be your top-of-the-line radio, it should be designed and made as perfectly as possible. You make it, I'll buy it! Joe |
"Joe Analssandrini" wrote in message ups.com... [super radio specs snipped for convenience of replying] You make it, I'll buy it! Joe Shoot, I feel like paying just to read your specs. I want *that* radio!!! |
LW2,
.. Using the Sony ICF-2010 as a 'standard and a Grundig Satellit 800 M as a Reference: .. * DRM = Digital Radio Mondiale Built-in DRM Signal Processor. .. * Radio Data System {RDS} Information Display .. * AM SYNC with Selectable SSB - Dual Side Band AM-Sync = 6 kHz - Selected USB/LSB Single Side Band AM-Sync = 3.4 kHz .. * Four AM Shortwave IF Band Widths - DRM Extra-Wide 12 kHz - AM Normal 6 kHz {AM Sync} - DXing Narrow 3.4 kHz {AM-Sync Selectable SSB} - SSB 2.4 kHz .. * Two FM IF Band Widths - Stereo/Local FM Normal = 210 kHz Wide - Mono/DX FM Distance = 130 kHz Narrow .. * RF Signal Input Control Three Position : - BOOST = Built-in 10 dB Pre-Amplifier for the Whip and Ferrite Bar Antennas. - DX = Normal - LOCAL = Shortwave Only 2-30 MHz Band Pass Filter with -20dB Attenuation for both the AM/MW Band and FM Band. .. * Large Tuning Knob and Up & Down Tuning Buttons with about 240 to 360 Memories. .. * Dual Tuning Steps: {Fast and Fine} - FM = 200 & 20 kHz - AM = 10 & 1 kHz {AM-BCB = 9/10} - SSB = 1 kHz & 100 Hz .. Separate Antenna Inputs : - FM "F" / PAL Connector - AM/MW and Shortwave - - HI-Z Dual Terminals {A&G} - - LO-Z Jack SO-239 .. * Speakers Three (2:1) for FM Stereo - One Rear Facing Bass {4.5" Sub-Woofer} - Two = Left and Right Front {3" Stereo} - Audio Output Selector Switch: - - Mono Talk & News {Voice} Front Two - - Mono Music all three speakers - - FM Stereo - HiFi (2:1) NOTE - Sort of like the Grundig Satellit 2400 Dual Speakers put the Controls in the Center and the Speakers on the the Left and Right Front Sides. http://www.dr-boesch.ch/radio/grundig-sat2400.htm .. * Built-in "D" Size Rechargable Batteries with an 'external' ACDC Power Adapter / Battery Charger. Auto/Car DCDC Power Adapter / Battery Charger. .. * The Right "Size" - About the Size of a Panasonic RF-2600 'portable' AM/FM Shortwave Radio : NOTE - Look at the Lay out of the Controls and the Big Main Tuning Knob. http://www.dxing.com/rx/rf799.htm - 13.5" W - 9.3" H - 4.6" D - Seven Pounds (7 Lbs.) .. well thats my double-nickels worth ~ RHF |
the 1103 and 800 are from competing companies are you sure this is on
the level ? |
sure the chief engineer of SAT800 is from Tecsun ,one of the biggest
radio manufacturer in China, now he has left the job then running a independent design house, the DE1103 if one of his design out for DEGEN company. |
very interesting.
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Dear Sir,
I should also like to add one more item to my list posted previously: all memories and the firmware should be non-volatile. Should battery and AC power be disconnected, all information should be retained permanently (until changed by the user). All my best wishes for the success of this forthcoming receiver. Joe |
Sanjaya wrote:
"Joe Analssandrini" wrote in message ups.com... [super radio specs snipped for convenience of replying] You make it, I'll buy it! Joe Shoot, I feel like paying just to read your specs. I want *that* radio!!! How about giving us the long promised Eton-E1 first. ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- |
LW2,
.. Some where i thought that I had read that Tecsun GEM China (PRC) 'owned' or was a major share holder in Degen. ? Now Is That True ? |
Some where i thought that I had read that
Tecsun GEM China (PRC) 'owned' or was a major share holder in Degen. ? Now Is That True ? .. i want to know ~ RHF Actually Degen used to be a subsidiary of Tecsun several years ago, the main business is radio sales, aftermarket service and Electrical Design, no production line, some Tecsun's radio electrical designing was come from Degen, but now Degen was completely separated and independent, Degen has full capacity on receiver designing, mass production and has own sales channel, Degen become a powerful competitor of Tesun thus far , sure some Tecsun's shareholder has shares of Degen, but it absolutely not affect the competitive situation. once tecsun bring out a new model, then Degen has a similar one to compete, for example: Tecsun 9700DX~Degen 1107, Tecsun PL550~Degen 1103, Tecsun PL350~ Degen 1105, Tecsun PL200~ Degen 1102, now Degen are building the flagship of DE110* series , we would like to see what does the Tecsun bring to desk |
All the post is very informative for designer's, I had transfered all
to my forum bbs.leowood.net, sorry it's Chinese version. the designer is also a community moderator in this Chinese radio fan's forum, he has reviewed all the thread, I will keep all in the loop some link here http://bbs.leowood.net/web/leowood/f...=0&ClassID =0 |
Dear Sir,
At the risk of posting too much, may I say that I understand that Degen is one of China's leading radio manufacturers. As such, I hope that the design of this radio is a "no-holds-barred" short wave receiver of absolute top quality. Ergonomics especially should be user-friendly. Menu-driven radios are perfectly acceptable IF the owner's manual is comprehensive and complete. (I own an AOR AR7030 Plus, the best performing radio I have ever owned, which I find very easy to use due in part to its superb owner's manual. Though menu-driven, its ergonomics are superb.) NO "FRILLS" (such as a "fake" analog dial) should be on this radio; everything incorporated should be there for a distinct purpose: the best possible reception of the signals desired. I sincerely hope you will take into consideration my suggestion to incorporate the various new terrestrial digital reception modes. It is not necessary (nor, in my opinion, desirable) to incorporate XM or Sirius satellite "pay" reception into this forthcoming radio. Satellite radio can better be served by another separate receiver. As I stated above, ABSOLUTE TOP QUALITY in DESIGN, COMPONENTS, and CONSTRUCTION QUALITY are of PARAMOUNT importance. Degen should market this radio in the USA under its own name. If the radio is a great one, this will give impetus to awareness of the Degen name in the United States. I believe that, if any company can design and market a near-perfect short wave radio, Degen is that company. Best, Joe |
Thanks, Joe, for spec'ing out an excellent radio - I'd like one of those! now for one additional nit... "Joe Analssandrini" wrote in message ups.com... Clocks should be RADIO-CONTROLLED (and operated independently from radio and powered via 2 AA or AAA batteries). Two times zones should be available, one of which should be UTC. Local time should be adjustable for daylight-savings time (via radio control) if required; UTC should NOT be affected by DST change. One of the clocks (including seconds) should ALWAYS be visible, radio on or off. Regarding the clocks, I suggest making it possible for the user to disable the automatic time-setting based on the radio time signal. Every once in a long while, radio-controlled clocks can mis-read the signal. I had a radio-controlled clock radio misread the DST information, and it was exactly 1 hour off for the next day! If you're relying on the radio to wake you up in the morning, this could be a problem (not likely, I'll admit, but I've seen it happen). Alternatively, design the radio controlled clock logic so that it makes a couple attempts to read the signal, and only update the clock if the results are consistent. Stephen |
Joe Analssandrini wrote: Dear Sir, At the risk of posting too much, may I say that I understand that Degen is one of China's leading radio manufacturers. As such, I hope that the design of this radio is a "no-holds-barred" short wave receiver of absolute top quality. Ergonomics especially should be user-friendly. Menu-driven radios are perfectly acceptable IF the owner's manual is comprehensive and complete. (I own an AOR AR7030 Plus, the best performing radio I have ever owned, which I find very easy to use due in part to its superb owner's manual. Though menu-driven, its ergonomics are superb.) NO "FRILLS" (such as a "fake" analog dial) should be on this radio; everything incorporated should be there for a distinct purpose: the best possible reception of the signals desired. I sincerely hope you will take into consideration my suggestion to incorporate the various new terrestrial digital reception modes. It is not necessary (nor, in my opinion, desirable) to incorporate XM or Sirius satellite "pay" reception into this forthcoming radio. Satellite radio can better be served by another separate receiver. As I stated above, ABSOLUTE TOP QUALITY in DESIGN, COMPONENTS, and CONSTRUCTION QUALITY are of PARAMOUNT importance. Degen should market this radio in the USA under its own name. If the radio is a great one, this will give impetus to awareness of the Degen name in the United States. I believe that, if any company can design and market a near-perfect short wave radio, Degen is that company. My question is: What relationship does DEGEN have to the PLA (People's Liberation Army)? dxAce Michigan USA |
More to the point, what does your question have to do with Degen radios
and shortwave listening. I am impressed that the designer of the DE1103 has given us some insight into that radio and more importantly has asked the SWL community for suggestions on how to design a new radio. That is a first for me. I think we should focus this discussion on Degen and their shortwave radios. And I'm sure you agree. dxAce wrote: Joe Analssandrini wrote: Dear Sir, At the risk of posting too much, may I say that I understand that Degen is one of China's leading radio manufacturers. As such, I hope that the design of this radio is a "no-holds-barred" short wave receiver of absolute top quality. Ergonomics especially should be user-friendly. Menu-driven radios are perfectly acceptable IF the owner's manual is comprehensive and complete. (I own an AOR AR7030 Plus, the best performing radio I have ever owned, which I find very easy to use due in part to its superb owner's manual. Though menu-driven, its ergonomics are superb.) NO "FRILLS" (such as a "fake" analog dial) should be on this radio; everything incorporated should be there for a distinct purpose: the best possible reception of the signals desired. I sincerely hope you will take into consideration my suggestion to incorporate the various new terrestrial digital reception modes. It is not necessary (nor, in my opinion, desirable) to incorporate XM or Sirius satellite "pay" reception into this forthcoming radio. Satellite radio can better be served by another separate receiver. As I stated above, ABSOLUTE TOP QUALITY in DESIGN, COMPONENTS, and CONSTRUCTION QUALITY are of PARAMOUNT importance. Degen should market this radio in the USA under its own name. If the radio is a great one, this will give impetus to awareness of the Degen name in the United States. I believe that, if any company can design and market a near-perfect short wave radio, Degen is that company. My question is: What relationship does DEGEN have to the PLA (People's Liberation Army)? dxAce Michigan USA |
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A couple of points. To make such a statement you apparently have
intimate knowlege of their financial condition and ownership. Perhaps you would care to share it. What are the percentage of ownership of the major stockholders and are dividends paid to all classes of shareholder. Please give us details of any cross ownership between this company and other commercial companies and development banks. What are the wages at this company. Does the company transfer funds to its owners by management fees in addition to dividends? You indicate a concern about buying products from non north american countries. Have you noticed that most of the clothing, appliances, cars and indeed almost all consumer goods are not from the U.S. To not have noticed you must have had your head firmly planted in the sand for several decades now. To not buy from developing countries would be all but impossible from an individual standpoint and pretty foolish for the U.S. as a global economic force. dxAce wrote: wrote: More to the point, what does your question have to do with Degen radios and shortwave listening. [?] It was a legitimate question regarding DEGEN radios. (And other Chinese sets as well) You may not like being reminded that by your purchase you help fund the PLA and help promote slave labour? Got a problem with that, 'tard boy? dxAce Michigan USA I am impressed that the designer of the DE1103 has given us some insight into that radio and more importantly has asked the SWL community for suggestions on how to design a new radio. That is a first for me. I think we should focus this discussion on Degen and their shortwave radios. And I'm sure you agree. dxAce wrote: Joe Analssandrini wrote: Dear Sir, At the risk of posting too much, may I say that I understand that Degen is one of China's leading radio manufacturers. As such, I hope that the design of this radio is a "no-holds-barred" short wave receiver of absolute top quality. Ergonomics especially should be user-friendly. Menu-driven radios are perfectly acceptable IF the owner's manual is comprehensive and complete. (I own an AOR AR7030 Plus, the best performing radio I have ever owned, which I find very easy to use due in part to its superb owner's manual. Though menu-driven, its ergonomics are superb.) NO "FRILLS" (such as a "fake" analog dial) should be on this radio; everything incorporated should be there for a distinct purpose: the best possible reception of the signals desired. I sincerely hope you will take into consideration my suggestion to incorporate the various new terrestrial digital reception modes. It is not necessary (nor, in my opinion, desirable) to incorporate XM or Sirius satellite "pay" reception into this forthcoming radio. Satellite radio can better be served by another separate receiver. As I stated above, ABSOLUTE TOP QUALITY in DESIGN, COMPONENTS, and CONSTRUCTION QUALITY are of PARAMOUNT importance. Degen should market this radio in the USA under its own name. If the radio is a great one, this will give impetus to awareness of the Degen name in the United States. I believe that, if any company can design and market a near-perfect short wave radio, Degen is that company. My question is: What relationship does DEGEN have to the PLA (People's Liberation Army)? dxAce Michigan USA |
I'd like (besides the other specifications) some other things (really cool
for european dxers): FM 64-76 extension (for OIRT dx) RDS (really nice to have FM listening) with PI CODE reception 3 IF FM filters frontend (like Satellit 500 or 700 ... cool for FM dxers -) and two kind of FM selectivity (like 280 and 80 khz Murata filters) it could be really cool mp3 recording and two antenna connector one for FM Antenna and SW and another one for MW antenna to disable internal ferrite. internal ferrite could be switch off besides like in Sangean ATS 909 with a stereo minijack) other suggestions made from other dxers are cool too. Leonardo QTH Matelica (MC) - Italy |
Re-reading my first post I noticed two silly errors I made: the slew
buttons on FM should offer 100 kHz tuning (not MHz)- and possibly 50 kHz tuning also - and the internal ferrite antenna for MW and LW should be 260 mm minimum length (not 130). An auxiliary external removeable MW/LW antenna, which could plug into a receptical on the top of the radio, and be rotated would be extremely nice; only the antenna would have to be rotated for best MW/LW reception, not the whole radio. By the way, really "tight" (multiple) filters for FM reception would be a plus. One other suggestion: make the radio BIG - more on the order of the Grundig Satellit 800. Smaller radios involve too much compromise in my opinion. There are certainly enough smaller compromised radios on the market already but very few "great" ones. (The Satellit 800 is close, but the improvements suggested here on this post would result, I believe, in one of the all-time great radios.) Sorry about the errors. Senility ... Best, Joe |
Joe Analssandrini schrieb:
One other suggestion: make the radio BIG - more on the order of the Grundig Satellit 800. Now that would be fairly huge. Sure sound could be very good, but portability really suffers. I'd even have trouble fitting such a beast on my desk or nightstand. It would, BTW, be advisable to use the largest speaker that fits the case (unlike the '800, which only uses a 10 cm speaker, a joke given the size of the thing). Stephan -- Meine Andere Seite: http://stephan.win31.de/ PC#6: i440BX, 2xP3-500E, 704 MiB, 18+80 GB, R9k AGP 64 MiB, 110W This is a SCSI-inside, Legacy-plus, TCPA-free computer :) |
Joe Analssandrini schrieb:
Synchronous-selectable sideband reception is a MUST. I forgot this in my original post. Yup, a low-distortion AM detector of some kind is virtually a must. Notoriously distorted diode detection just doesn't cut it for serious listening. (Besides, the Sat 700 already had synch detection.) Should be designed at least as well as that on the Grundig Satellit 800. Quite tricky, given the folks at DEGEN have no experience building synch detectors so far. Full passband tuning would be even better. Sure, but I've never seen that in a portable. Lock must be held as well as on AR7030 model That would be great. It virtually never unlocks (and even if it does, you don't notice much since the receiver is still using the very low-distortion product detector). BTW, if synch audio quality were anything close to that on the AR7030 this would be great. I was amazed by how good AM can sound that way. (It's just that the AR7030 doesn't match my usage pattern very well and usually resides in its box. Seems silly, but maybe I'll be able to put up a decent antenna one day, and then I'd be sorry to have sold the thing. It's unlikely to lose much in value anyway.) and must automatically turn off when tuning and then re-lock when station is selected. That would be the standard way of implementing it, I think. A good notch filter (with at least 50 dB depth) with range of 0.1 - 5 kHz. That sure would be nice, but did any other portable ever have one? At least 3 IF filters (bandwidths) (preferably 4) of 2.2 kHz, 4 kHz, 6 kHz (and possibly 1 kHz for data/CW); I don't know whether that's realistic in a portable. Still, a 2.2/4/6 kHz combo would work well. operation of these filters should be cascaded so that inexpensive ceramic filters will give much better performance than usual. However, you can't cascade indefinitely. Passband ripple will mess up things at some point. The AR7030, BTW, uses a 4-element 12 kHz tail filter along with some 6-element ceramics and a high-quality SSB filter (Murata CFJ). If a good SSB filter is not within the budget, cascading the 6 and 4 kHz filters might also work (which would give a caascade of the 12, 6 and 4 kHz filters overall). The 12 kHz might also be useful for DRM or really indisturbed AM reception. BTW, with good filtering present, low oscillator phase noise is of high importance. That's one of the reasons why the AR7030 achieves such good selectivity. All shape factors should be less than 1:2. Actually that's true even of the 6-element Muratas like the one used in the 7600GR. Dial illumination via LEDs, perhaps color-switchable (Red, Blue, Green). Now that would be nifty. Dial light scheme similar to Grundig Satellit 800. (Always on or always off with AC power, on for 15 seconds with any button push when using battery power, or always off with batteries, as desired by user.) This concept does not seem so uncommon, our Sony ICF-M60SRDS also uses it. Line outputs for external speaker(s) and stereo system. Excellent sound quality is a must. Shouldn't be that much of a problem, decent-quality opamps like 5532s aren't expensive these days, and decent-quality electrolytics aren't that much of a problem either. Independent tone controls (Treble and Bass) should be incorporated. Internal mono speaker of high quality is preferable to mediocre stereo speakers. ACK. At least two external antenna inputs for AM/SW (high and low impedence) as well as an FM antenna input. That seems reasonable. Now the question is, what norm would the FM ant input conform to? IBOC reception (AM & FM) for the US. Canadian DAB. (Possibly European DAB.) Self-contained DRM (or a 12 kHz IF output to connect to a DRM-equipped computer). I'd consider DRM as a world-wide standard to be more important than DAB. Clocks should be RADIO-CONTROLLED Good idea, but by which time signal station? Making this variable requires considerably more efforts. (Typically a narrow-band LC tuned front-end filter is used, which has to be laid out or at least adjusted differently for the various frequencies, e.g. MSF 60 kHz for UK folks, DCF77 77.5 kHz etc.) (and operated independently from radio and powered via 2 AA or AAA batteries). Two times zones should be available, one of which should be UTC. Local time should be adjustable for daylight-savings time (via radio control) if required; UTC should NOT be affected by DST change. One of the clocks (including seconds) should ALWAYS be visible, radio on or off. Very reasonable suggestions. No LEDs (except for dial illumination and possibly button illumination). Properly calibrated digital bar graph S-meter of at least 12 segments. I guess most people would already be happy with a *useful* meter that doesn't read full strength 95% of the time, yet also catches fairly weak signals and has a pretty wide range. A high-quality plastic cabinet or, preferably, a light-weight metal (aluminum or magnesium) cabinet. I don't know whether a metal case would do the sound aspect any good. Plastic is more realistic anyway. ALL internal components to be of TOP-QUALITY (formerly known as MIL-spec). Isn't that asking a bit too much? Excellent sensitivity; a 3 or 4 step attenuator (or adjustable RF-gain control) should be incorporated. A 2-step attenuator would most likely also do. RF gain was more necessary in the old days to get SSB demodulation with fairly lousy detectors right. A switchable AGP time constant/behavior, however, would be a nice touch. All other specifications to be of Drake R8B/AOR AR7030 caliber, especially blocking, ultimate rejection, image rejection, and, most important, dynamic range. I guess the receiver will be priced at around ~500USD/EUR, so not all of this will be possible. Excellent sensitivity (a 3 or 4 step attenuator would be of help). Depending on how sensitive the thing becomes, either a pre-amp for the whip (as done in the Sat 700) or a pre-attenuated ext ant input (we don't want anything to blow on large antennas) seems like the more likely solution. A carrying case (nylon or leather) should be optionally offered; this should be able to carry AC adapter, batteries, and any other options, as well as fully protecting the radio. Seems like a good idea, though this kind of rig will never be as portable as a DE105. (BTW, I sure would like to get my hands on a DE1105. The '105 isn't bad for what it is, but doesn't perform as well as I'd like. And since the '1105 isn't a lot bigger, this seems like the perfect model to upgrade to.) Servicing is important. All service information should be made available on line. That would be great indeed. At the very least there should be some way of obtaining service docs at all. Stephan -- Meine Andere Seite: http://stephan.win31.de/ PC#6: i440BX, 2xP3-500E, 704 MiB, 18+80 GB, R9k AGP 64 MiB, 110W This is a SCSI-inside, Legacy-plus, TCPA-free computer :) |
Stephan Grossklass wrote:
Quite tricky, given the folks at DEGEN have no experience building synch detectors so far. I think we've reached the point where a good sync' detector is not exactly rocket science anymore. However the problem is designing one that doesn't infringe on someone elses design. That could be a big problem. ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- |
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