[time-nuts] Cheap Frequency chip with serial output
giuseppe at marullo.it
Sun Oct 26 17:50:33 EDT 2014
On 26/10/2014 17:49, Magnus Danielson wrote:
> If you look at http://www.radiomanual.info/schemi/FT102_user_VA3VFO.pdf
> you realize that the display is the result of a frequency counter
> being built in. You could either tap in and count yourself, or you
> could tap a whole number of other points depending on what you are after
Yes, but still I would need to tap into the band selector. If possible,
better read a meaningful frequency (again, if possible). Once I will go
for tapping the band selector, yes I could just use the input to the
frequency display( that is really a frequency counter, not like new
> Love to get some serial interface into my IC-740, which is just a
> little too old for serial interfaces like the younger onces.
Well, use the ft-736 "emulator" approach, maybe your could be somewhat
driven. IC-740 sports digital VFOs and it is solid state so...have fun.
Being the FT-102 a tube radio, there is no way I will set the VFO using
a computer, like this:
I would need like 6 knobs/selectors to be turned from the
computer...could be a good robot project :)
> On 10/26/2014 03:20 PM, paul swed wrote:
>> Thats a mighty old radio.
>> That being said reading the frequency of the VFO may or may not work out
>> for you.
>> The actual frequency will be made up of a number of other frequencies
>> are injected at different stages.
>> Drake as an example actually uses the VFO in a plus or add on some bands
>> and a minus or subtract on others.
>> If you can read just the VFO then at least you have the last digits
>> accept for the minus case.
>> On Sat, Oct 25, 2014 at 10:26 PM, Giuseppe Marullo <giuseppe at marullo.it>
>>> just wanted to know if there is any very cheap pre programmed pic or
>>> something similar to get frequency of a Yaesu FT-102 radio.
>>> I need it to know its frequency, either the VFO alone (sub 6MHz) or
>>> possibly its real rx and tx frequency (up to 30MHz).
>>> Using the VFO would be easier but then I will have to probe the
>>> band commutator.
>>> I know Arduino could be a solution, just wanted to know if something
>>> smaller is available, possibly with rs232.
>>> Giuseppe Marullo
>>> IW2JWW - JN45RQ
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