[NSRCA-discussion] RX choices
george w. kennie
geobet at gis.net
Fri Sep 15 18:14:51 AKDT 2006
Well, you caught me there Bill. You're right, she was a grade ahead of me in
school, but BOY, did we have chemistry!!!
----- Original Message -----
From: "Bill Glaze" <billglaze at triad.rr.com>
To: "NSRCA Mailing List" <nsrca-discussion at lists.nsrca.org>
Sent: Friday, September 15, 2006 4:36 PM
Subject: Re: [NSRCA-discussion] RX choices
> Gee whiz, Georgie, I would have thought you were too old for her! Bill
> ----- Original Message -----
> From: "george w. kennie" <geobet at gis.net>
> To: "NSRCA Mailing List" <nsrca-discussion at lists.nsrca.org>
> Sent: Friday, September 15, 2006 2:26 PM
> Subject: Re: [NSRCA-discussion] RX choices
>
>
>>
>> Boy, I can't wait for that one !!!!!!! I used to date Hedi and she never
>> mentioned anything about DSS to me. I guess it's always been on the
>> hush-hush.
>> G.
>>
>>
>> ----- Original Message -----
>> From: "Dean Pappas" <d.pappas at kodeos.com>
>> To: "NSRCA Mailing List" <nsrca-discussion at lists.nsrca.org>
>> Sent: Friday, September 15, 2006 11:34 AM
>> Subject: Re: [NSRCA-discussion] RX choices
>>
>>
>>> It's even wierder than that, and I am just too busy right now.
>>> Later, I promise,
>>> Dean
>>>
>>> Dean Pappas
>>> Sr. Design Engineer
>>> Kodeos Communications
>>> 111 Corporate Blvd.
>>> South Plainfield, N.J. 07080
>>> (908) 222-7817 phone
>>> (908) 222-2392 fax
>>> d.pappas at kodeos.com
>>>
>>>
>>> -----Original Message-----
>>> From: nsrca-discussion-bounces at lists.nsrca.org
>>> [mailto:nsrca-discussion-bounces at lists.nsrca.org]On Behalf Of
>>> dwaynenancy
>>> Sent: Friday, September 15, 2006 11:29 AM
>>> To: NSRCA Mailing List
>>> Subject: Re: [NSRCA-discussion] RX choices
>>>
>>>
>>> Yep, she had a patent on the method. It seems she got the idea while
>>> playing a piano. Dwayne
>>>
>>> Dean Pappas wrote:
>>>
>>>> Even the latest Spektrum DSS system is just narrow-band FM!
>>>> How that works is an even better story, especially because it involves
>>>> Hedi Lamarr!
>>>> later,
>>>> Dean
>>>>
>>>>
>>>> Dean Pappas
>>>> Sr. Design Engineer
>>>> Kodeos Communications
>>>> 111 Corporate Blvd.
>>>> South Plainfield, N.J. 07080
>>>> (908) 222-7817 phone
>>>> (908) 222-2392 fax
>>>> d.pappas at kodeos.com
>>>>
>>>> -----Original Message-----
>>>> *From:* nsrca-discussion-bounces at lists.nsrca.org
>>>> [mailto:nsrca-discussion-bounces at lists.nsrca.org]*On Behalf Of
>>>> *Bob Richards
>>>> *Sent:* Friday, September 15, 2006 11:17 AM
>>>> *To:* NSRCA Mailing List
>>>> *Subject:* Re: [NSRCA-discussion] RX choices
>>>>
>>>> John,
>>>>
>>>> I'm not surprised the manufacturers keep the PCM information (like
>>>> packet specification, operating parameters, etc) private. For
>>>> one, that information could be considered a trade secret and they
>>>> would not want competitors to know about it. On the other hand,
>>>> they might be worried that a competitor would examine the data and
>>>> discover some flaw or limitation in the technology and then
>>>> publicly announce this fact. Still, I'm surprised no one has
>>>> reverse engineered the PCM data stream from either JR or Futaba
>>>> (maybe someone has, I just don't know).
>>>>
>>>> I'll take some issue with what you have said regarding the
>>>> technology not changing since the '50s. I believe the '50s saw
>>>> super-regen systems? After that, there was (is) super-heterodyne
>>>> systems. Then, dual conversion and narrow band systems, as well as
>>>> FM instead of AM. PCM was added (really nothing to do with the
>>>> RF, just a data link added to the existing RF systems). I think
>>>> the systems today are more reliable than in the 70s when I first
>>>> started, and they are having to do this in a much more polluted RF
>>>> environment.
>>>>
>>>> Still, I agree with you that, as a group (modelers in general), we
>>>> have not done a good job demanding more from the manufacturers.
>>>> For most, cost seems to be the big issue, but we don't look at
>>>> cost in terms of the big picture, like "a cheap receiver will cost
>>>> you a lot AFTER you buy it". Those of us that are competitors do
>>>> a better job demanding more, IMHO.
>>>>
>>>> Bob R.
>>>>
>>>>
>>>> */John Ferrell <johnferrell at earthlink.net>/* wrote:
>>>>
>>>> Although I fly Futaba I have a lot of respect for the JR
>>>> receiver
>>>> technology. It is the only thing new in receiver design other
>>>> than the
>>>> Futaba synthesized receiver since the early 1950's. The
>>>> technology made the
>>>> change to solid state but that was not taking advantage of any
>>>> new design.
>>>>
>>>> I can assure you that Ham radio receivers have made steady
>>>> progress during
>>>> that time even as prices came down.
>>>>
>>>> The bigger problem is that we have no idea about the real
>>>> specs on these
>>>> receivers. The maintenance information is held very close and
>>>> parts even
>>>> closer. We have no idea how long it takes to cycle in and out
>>>> of fail safe
>>>> let alone any control over it. In fact we have no real
>>>> indicator of failure
>>>> thresholds. George Steiner has done a lot of work in this area
>>>> such as his
>>>> "missing frames" detector but his work has been hampered by
>>>> lack of
>>>> published specs by the manufactures with PCM.
>>>>
>>>> I had hopes of improvements when HiTec swallowed Multiplex but
>>>> it seems to
>>>> me they have only used the acquisition to leverage their
>>>> efforts to become
>>>> another Futaba/JR/Airtronix.
>>>>
>>>> We have not been demanding customers and we have put way too
>>>> much faith in
>>>> letting the suppliers make decisions for us!
>>>> John Ferrell W8CCW
>>>> "My Competition is not my enemy"
>>>> http://DixieNC.US
>>>>
>>>> ----- Original Message -----
>>>> From: "Ed Alt"
>>>> To:
>>>> Sent: Thursday, September 14, 2006 5:02 PM
>>>> Subject: Re: [NSRCA-discussion] RX choices
>>>>
>>>>
>>>> >
>>>> > Yep, I've been flying JR single conversion ABC&W sine the
>>>> late 90's in
>>>> > quite
>>>> > a number of different locations around the country and have
>>>> never, not
>>>> > once
>>>> > had the slightest indication of a problem. Lot's of time
>>>> with ignition
>>>> > systems too. Must be some other cheesy single conversion
>>>> receiver?
>>>> >
>>>> > Ed
>>>> >
>>>>
>>>>
>>>> _______________________________________________
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>>>> NSRCA-discussion at lists.nsrca.org
>>>> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
>>>>
>>>>
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>>
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