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<p>Actually, just having finished my prep course for my General exam
tomorrow, I am looking to do SDR I think. I suppose DSP is
digitalizing audio in-/out-put. <br/>
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<p>I have ordered 2 cables for programming my radio. One is BTECH
the other the Baofeng PC03 Programming Cable. One of those gotta
work!</p>
<p>Kindly,<br/>
Robert<br/>
</p>
<div class="moz-cite-prefix">On 4/7/21 6:03 PM, Robert Ankenbauer
wrote:<br/>
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<div dir="ltr">Robert,</div>
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<div dir="ltr">Look into "Packet Ham Radio" K4ABT has a good
beginners page. I'm not sure if packet radio is still a thing?
I haven't used it since the mid to late 90's</div>
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<div dir="ltr">Thanks,
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<div>Bob KA1TTG</div>
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<div dir="ltr" class="gmail_attr">On Wed, Apr 7, 2021 at 5:51
PM Robert Withers via chirp_users <<a href="mailto:chirp_users@intrepid.danplanet.com" moz-do-not-send="true">chirp_users@intrepid.danplanet.com</a>>
wrote:<br/>
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<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">An additional query. How
is DSP done, then? I thought that is what I was<br/>
looking to do, with a program running on connected
computers, doing the<br/>
processing of the digital data.<br/>
<br/>
Thanks,<br/>
Robert<br/>
<br/>
On 4/7/21 5:42 PM, Robert Withers wrote:<br/>
> What? Is there no way to transmit data over RF? I
thought that that was<br/>
> a transmit mode, in eligible frequencies. I guess the
info transmitted<br/>
> must go through the mic input and out the spk jack, as
those are the<br/>
> only jacks in my handheld. But I really thought that
data transmission<br/>
> was possible. Oh dear, much more to research.<br/>
><br/>
> Kindly,<br/>
> Robert<br/>
><br/>
> On 4/7/21 4:57 PM, Nigel A. Gunn G8IFF/W8IFF wrote:<br/>
>> You're not going to do that using any connector
normally provided on the radio.<br/>
>> You can send the data out of the computer through a
serial port but it will need to go directly into the
modulator or VFO on the radio. There are special data radios
available but most amateur transceivers won't do it.<br/>
>> Video is different because of the bandwidth
required so you might be better with receiver and
transmitter designed for TV use.<br/>
>><br/>
>><br/>
>>> I want to read /write data to be broadcast over
the RF frequency the<br/>
>>> radio is set to. I want to intercept the
traffic on the computer to run<br/>
>>> my own protocol, which may be audio/video but
encoded into my protocol.<br/>
>>> I am thinking the answer is reading and writing
to the tty may work, or<br/>
>>> mic input and spk output for audio. But I want
data transmission, not<br/>
>>> audio.My software currently reads/writes
to/from a socket. The read side<br/>
>>> of reading from a tty should probably be
buffered, somehow. Something to<br/>
>>> figure out as I complete my ReedSolomon
implementation and fix a few<br/>
>>> bugs in my protocol software.<br/>
>>><br/>
>>> Kindly,<br/>
>>> Robert<br/>
>>><br/>
<br/>
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