The reason it died was more apathy in the amateur
world when a ham can buy a full featured vhf or
uhf or even 6m radio off the shelf that did more
for less and required no surgery... Joe and I had
discussions on porting it onto 900 radios at the
time which were only available as commercial
feature starved radios( mostly with no mods
available at the time like we have now) and at
the time 900 was such slow growth.. no one chose
to show interest. If you look back in discussions
on ar902mhz you will find queries of interest..
there was none so the project was never pushed...
What needed to be done is build a self contained
head and finish it as a complete unit.. it was
not really complete although it was operational.
Some of us had issues when we tried to remote
control a radio from a remote head as the line
drivers had poor immunity to noise...
Most assembled were hand wired as boards were
only available later in the project..
A replacement project is worthy ( and quite
doable ) but I am not sure Joe would care to
participate.. as he was pretty dejected about the
reception by the amateur community... Timing is everything as they say...
Many radios such as Maxtrac and almost ALL the
GE-et-al 900 radios share a common PLL chip.. it is not magic to program....
Doug
KD8B
At 02:50 AM 3/2/2010, you wrote:
Oh, BTW, I saw nothing for the Spectra there.
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>[email protected]>
> To:
<<mailto:Repeater-Builder%40yahoogroups.com>[email protected]>
> 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:[email protected]>
>>> *To:*
<mailto:Repeater-Builder%40yahoogroups.com>[email protected]
>>> <mailto:[email protected]>
>>> *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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