[chirp_users] Download From Radio under Ubuntu 20.04 error

Robert Withers robert.withers at pm.me
Wed Apr 7 15:29:14 PDT 2021


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.

I have ordered 2 cables for programming my radio. One is BTECH the other the Baofeng PC03 Programming Cable. One of those gotta work!

Kindly,
Robert

On 4/7/21 6:03 PM, Robert Ankenbauer wrote:

> Robert,
>
> 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
>
> Thanks,
>
> Bob KA1TTG
>
> On Wed, Apr 7, 2021 at 5:51 PM Robert Withers via chirp_users <chirp_users at intrepid.danplanet.com> wrote:
>
>> An additional query. How is DSP done, then? I thought that is what I was
>> looking to do, with a program running on connected computers, doing the
>> processing of the digital data.
>>
>> Thanks,
>> Robert
>>
>> On 4/7/21 5:42 PM, Robert Withers wrote:
>>> What? Is there no way to transmit data over RF? I thought that that was
>>> a transmit mode, in eligible frequencies. I guess the info transmitted
>>> must go through the mic input and out the spk jack, as those are the
>>> only jacks in my handheld. But I really thought that data transmission
>>> was possible. Oh dear, much more to research.
>>>
>>> Kindly,
>>> Robert
>>>
>>> On 4/7/21 4:57 PM, Nigel A. Gunn G8IFF/W8IFF wrote:
>>>> You're not going to do that using any connector normally provided on the radio.
>>>> 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.
>>>> Video is different because of the bandwidth required so you might be better with receiver and transmitter designed for TV use.
>>>>
>>>>
>>>>> I want to read /write data to be broadcast over the RF frequency the
>>>>> radio is set to. I want to intercept the traffic on the computer to run
>>>>> my own protocol, which may be audio/video but encoded into my protocol.
>>>>> I am thinking the answer is reading and writing to the tty may work, or
>>>>> mic input and spk output for audio. But I want data transmission, not
>>>>> audio.My software currently reads/writes to/from a socket. The read side
>>>>> of reading from a tty should probably be buffered, somehow. Something to
>>>>> figure out as I complete my ReedSolomon implementation and fix a few
>>>>> bugs in my protocol software.
>>>>>
>>>>> Kindly,
>>>>> Robert
>>>>>
>>
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