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.
> > 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)?
> 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)?
> 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)?
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.
> > 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)?
hjs...@cs.com wrote: > 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.
> > > 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.
> > > > > 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)?
In article <1107187867.764998.76...@f14g2000cwb.googlegroups.com>,
<leowood2...@msn.com> wrote: >The designer(also the main engineer of DE1103 & Grundig SAT800) now ask >advise of the receiver function from BCLer, the DE1108 will be the >high-end receiver of DE 110X series, it comes with a large dot matrix >LCD display(128*64) two way speaker system, MP3 recorder, AM sync >detector, SSB, dual conversion, the reference basis is SAT700, it >should has better performance than sony 2001D, 7600G, SW77 even SAT700, >the outline dimensions will be large than SAT700,pls post your thougts >here, I will take the message to the design, thank you!
One idea would be to make it a "hang on the wall" shortwave. Desk space is problem for a lot of us, and I think a radio with a form factor like a flat panel TV would be neat. (My 2 cents worth. $.02 is probably asking too much).
Mark Zenier mzen...@eskimo.com Washington State resident
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
> > 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)?
> The designer(also the main engineer of DE1103 & Grundig SAT800) now ask > advise of the receiver function from BCLer, the DE1108 will be the > high-end receiver of DE 110X series, it comes with a large dot matrix > LCD display(128*64) two way speaker system, MP3 recorder, AM sync > detector, SSB, dual conversion, the reference basis is SAT700, it > should has better performance than sony 2001D, 7600G, SW77 even SAT700, > the outline dimensions will be large than SAT700,pls post your thougts > here, I will take the message to the design, thank you!
Single side band selectable AM synch. (AN ABSOLUTE MUST IF YOU WANT TO BEAT THE 7600gr)
Large comfortable to use tuning knob along with push button tuning knob.
Noise Blanker to deal with electronic noise.
Well though out selectable filter settings. Four widths for SW would be ideal.
Internal battery charger.
Illuminated buttons like on the DE-1102. A great idea that if refined could be a tremendous feature. If you could see the label or number of each button light up from inside of the radio so you could use it in the dark, it would be great. You were on the right track with the DE-1102. Just refine it.
Two selectable backlight colors. Amber or Blue. Not really needed but it would be such a neet feature, I'd buy one just for that.
A well designed and functional whip antenna that isn't too loose or too tight.
A carry case that does not stink like old tires mixed with formaldehyde. I had to leave the carry case I got with my DE-1101 outside for a week to fumigate it before I could breath around it without wanting to vomit.
A more elaborate external antenna then the standard wire that comes with the 1101 or 1102. Having it come with a capable external antenna would be a great selling point. Maybe have a wire with a coil or some kind of a load in it.
-- Respectfully,
Michael
Location: New Jersey Primary Receiver: R-75 with full Kiwa mods Antennas: G5RV, 200ft "Frankenstein" roof wire Additional Radios: 7600GR,KA-1101,KA-1102 PL-550, KA-989, Info-Mate 837, GE-SR III Westinghouse H-104 (seven tube) Web Site: http://md_dxing.tripod.com
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.
HI all, I have a Degen 1103. It's a good rx. About the 1108 I suggest to care about FM section. In the world there are a lot of Dxer looking for a good FM radio since Grundig Satellit 500 and 700 disappeared. Here are some important features about FM section, with low cost to implement it:
1) coverage also of East Europe OIRT FM 65.9 - 74 MHz
2) 3 IF filter (bandwidth, with low price Murata ceramic filters): narrow 53 kHz for hard dx; middle 110 kHz filters for better RDS decoding also in dx; large 180 kHz filter for music
3) 10 kHz step possible
4) External antenna possible for FM too
5) RDS with also PI code reading as Sat 700
6) Connection with a computer for RDS decoding and analysis, via serial port (better) or jack
Features 1 - 4 - 5 and also 6 can be obtained without too many problems also with Sangean 909. The feature #2 is obtained on Sangean (only one fix bandwith) changing the 10.7 IF filters with a Murata ceramic one.
leowood2...@msn.com wrote in message <news:1107187867.764998.76470@f14g2000cwb.googlegroups.com>... > The designer(also the main engineer of DE1103 & Grundig SAT800) now ask > advise of the receiver function from BCLer, the DE1108 will be the > high-end receiver of DE 110X series, it comes with a large dot matrix > LCD display(128*64) two way speaker system, MP3 recorder, AM sync > detector, SSB, dual conversion, the reference basis is SAT700, it > should has better performance than sony 2001D, 7600G, SW77 even SAT700, > the outline dimensions will be large than SAT700,pls post your thougts > here, I will take the message to the design, thank you!
>The designer(also the main engineer of DE1103 & Grundig SAT800) now ask >advise of the receiver function from BCLer, the DE1108 will be the >high-end receiver of DE 110X series, it comes with a large dot matrix >LCD display(128*64) two way speaker system, MP3 recorder, AM sync >detector, SSB, dual conversion, the reference basis is SAT700, it >should has better performance than sony 2001D, 7600G, SW77 even SAT700, >the outline dimensions will be large than SAT700,pls post your thougts >here, I will take the message to the design, thank you!
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.)
> First my idea about the MP3 recorder: > -96-112 kbps for FM Stereo
112 max seems a bit tight to me. Even with frequencies up to 15 kHz only, the maximum should be the equivalent of ~200 kbps ABR/VBR from a CD (around 160 or so?). Noone has to use that, but the recording from a high-quality station at maximum quality should be indistiguishable from the original even using good headphones.
> -max 20 kbps for AM
A selection of 16, 24 and 32 kbps seems reasonable.
> It can be useful if common flash (removable) memories will be used
Yup. Since size is not an issue, I'd look at CF. Stuff in a big Microdrive or similar and record forever and a day, plus potential incompatibilities are minimal since CF cards have their own controllers.
> What about adding VHFII band? ( 150 -180 MHZ )
Hmm, what's that used for? It would most likely require a separate frontend since you can't expand FM band coverage indefinitely.
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 :)
> 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 :)
> 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 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 :)
> The designer(also the main engineer of DE1103 & Grundig SAT800) now ask > advise of the receiver function from BCLer, the DE1108 will be the > high-end receiver of DE 110X series, it comes with a large dot matrix > LCD display(128*64) two way speaker system, MP3 recorder, AM sync > detector, SSB, dual conversion, the reference basis is SAT700, it > should has better performance than sony 2001D, 7600G, SW77 even SAT700, > the outline dimensions will be large than SAT700,pls post your thougts > here, I will take the message to the design, thank you!
> 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.
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leowood2...@msn.com wrote: > The designer(also the main engineer of DE1103 & Grundig SAT800) now ask > advise of the receiver function from BCLer, the DE1108 will be the > high-end receiver of DE 110X series, it comes with a large dot matrix > LCD display(128*64) two way speaker system, MP3 recorder, AM sync > detector, SSB, dual conversion, the reference basis is SAT700, it > should has better performance than sony 2001D, 7600G, SW77 even SAT700, > the outline dimensions will be large than SAT700,pls post your thougts > here, I will take the message to the design, thank you!
It appears that the suggestions have all been posted. I hope you and your associates will consider them all carefully.
Let me just sum up what I personally would like (and what the radio would have to be like in order to persuade me to buy one):
It has to have the performance of the AOR AR7030 Plus receiver on the LW/MW/SW bands AND it must have IBOC, the various DAB protocols, and possibly DRM. NO SATELLITE ("Pay Radio") reception. Its FM performance must be first-class and its sound must be no less than excellent. All this should be in a package which can operate from rechargeable NiMH batteries - 4.8 V, 7.2 V, or 9.6 V. The batteries should preferably be "D" size. This would, of course, require some "breakthroughs" as no portable radio in history has ever featured that which I ask. Can you accomplish it?
What are your requirements of a good radio? What features that you would like to be included in a future radio? Should this radio be a table-top or a portable?
Degen radio is going to design a good radio, the DE1108 is hoped to be the best radio ever, second to none that would meet your requirements!!!
All the latest news about the DE1108 will be posted on this group, also all your comments and suggestions will be reflected to the enginners of the Degen radio company.
> What are your requirements of a good radio? > What features that you would like to be included in a future radio? > Should this radio be a table-top or a portable?
> Degen radio is going to design a good radio, the DE1108 is hoped to > be the best radio ever, second to none that would meet your > requirements!!!
> All the latest news about the DE1108 will be posted on this group, also > all your comments and suggestions will be reflected to the enginners > of the Degen radio company.
> What are your requirements of a good radio? > What features that you would like to be included in a future radio? > Should this radio be a table-top or a portable?
> Degen radio is going to design a good radio, the DE1108 is hoped to > be the best radio ever, second to none that would meet your > requirements!!!
> All the latest news about the DE1108 will be posted on this group, also > all your comments and suggestions will be reflected to the enginners > of the Degen radio company.
> What are your requirements of a good radio? > What features that you would like to be included in a future radio? > Should this radio be a table-top or a portable?
> Degen radio is going to design a good radio, the DE1108 is hoped to > be the best radio ever, second to none that would meet your > requirements!!!
> All the latest news about the DE1108 will be posted on this group, also > all your comments and suggestions will be reflected to the enginners > of the Degen radio company.
> Cheers, > Paul - HongKongRadioer
I think they should design a REAL portatop, something along the lines of the Sony 2010, about the 2010's size but packed with tabletop features. Considering what they've done with the 1102, and how far technology has advanced since the heyday of the 2010, they could make a 2010 size portatop but with the features of the best tabletops, including making it DRM ready, AND putting in FM stereo that covers ALL world FM bands, including Eastern Europe, Japan, and US-that would be about 66-108 Mhz. Hell, they could put in TV sound covering all TV channels in the world. Throw in world weather bands too. Make it able to receive ELF radio signals, down to 10 khz or so. Why not dream big?
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