It was not a single channel device it had at
least 10 channels... It took over the radios pll
from outside so radio channel programming and
capacity was irrelevant... It also had scan,
simplex offset and a few other amateur features...
I was involved in application testing on a few of
the radios under my first callsign of KB8GVQ as well as Jim WD8CHL...
It programmed the pll chip that runs the
synthesizer by isolating that in the radio... the
radio though it was on whatever was in a
particular channel and the PLL was actually
wherever Joe and the User wanted it...
The reason for different versions was it had to
account for how a given PLL was programmed and
the offset differences based on the IF for receive.
Doug
KD8B
At 02:50 AM 3/2/2010, you wrote:
On the contrary, the docs were very enlightening.
Perhaps the reason there was little interest was the fact that it
appears to make the radio 'single channel only', and I'm sure many
people would have wanted to keep the multi-channel capability. But, as
an add-on to the radio as-is, it would have been very interesting.
What microprocessor did he use? And are any still available?
Joe M.
Chuck Kelsey wrote:
> There was, but it's all gone now. At one
point a link to his site was posted
> on the Repeater Builder site. Joe made
several posts to this list and became
> discouraged at the lack of interest. The
documentation would be of no value
> as you need the programmed microprocessor chip to make it work.
>
> Chuck
> WB2EDV
>
>
>
> ----- Original Message -----
> From: "MCH" <<mailto:mch%40nb.net>m...@nb.net>
> To:
<<mailto:Repeater-Builder%40yahoogroups.com>Repeater-Builder@yahoogroups.com>
> Sent: Monday, March 01, 2010 8:44 PM
> Subject: Re: [Repeater-Builder] Re: 900 meg Spectra radio
>
>
>> Interesting. I wonder if there is some tech info on this that is
>> available. Any idea how much the cost was and what mods were required?
>>
>> Or, perhaps some tech data on the synthesizer as far as what pins
>> control the frequency, as well as any binary-to-frequency info.
>>
>> Joe M.
>>
>> Chuck Kelsey wrote:
>>>
>>> Joe Burch was his name. It was a frequency agile control head that could
>>> be set up for most any type of synthesized commercial radio. You entered
>>> the frequency and tone via a keypad.
>>>
>>> Chuck
>>> WB2EDV
>>>
>>> ----- Original Message -----
>>> *From:* Chuck Kelsey <mailto:wb2...@roadrunner.com>
>>> *To:*
<mailto:Repeater-Builder%40yahoogroups.com>Repeater-Builder@yahoogroups.com
>>> <mailto:Repeater-Builder@yahoogroups.com>
>>> *Sent:* Monday, March 01, 2010 8:20 PM
>>> *Subject:* Re: [Repeater-Builder] Re: 900 meg Spectra radio
>>>
>>> Been there, done that. There was no interest in the ham community.
>>> Why? It required modifications that most were not willing to tackle.
>>> At the moment, the name of the guy escapes me, but I did one of his
>>> modifications to a 6-meter Delta-S several years ago. He has since
>>> given up on the idea, but it worked on most any radio.
>>>
>>> Chuck
>>> WB2EDV
>>
>> ------------------------------------
>>
>>
>>
>> Yahoo! Groups Links
>>
>>
>>
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