[chirp_users] Settings to match Motorola PL tones

Nigel Johnson MIEEE nw.johnson at ieee.org
Wed Jun 8 07:52:32 PDT 2016


Yes, the use of tone mode was often marketed as a 'privacy tone' by companies. Anybody with a scanner or a receiver that does not have tone squelch will be able to receive you.

The only privacy you would get is if you were on a shared network that has been set up professionally, then you will not hear the routine conversations of other users.  However, even on such a network, you were frequently given a button that defeated the tone squelch so that you could listen to make sure the channel was clear before transmitting.

Either way, there is no such thing as privacy in amateur radio, unless your government has allowed encryption in certain cases, such as sending personal information for user agencies in an emergency. Then it is all digital anyway.

73 de Nigel
ve3id

On 06/08/16 10:24, Rich Messeder wrote:
> Thanks, "Rich". ;-)
>
> "Direct" is called simplex.
> On my Kenwood TH-F6A, I can select "Tone" to activate a repeater that requires it, or I can select CTCSS (PL) to filter incoming calls according to a tone. But using one cancels the other. Some radio permit the use of both, hence the CROSS value in CHIRP.
>
> IMO. setting the ToneMode to Tone should have resulted in the UV5 /sending/ a tone. If it were earlier TSQL, and the Motorola were NOT sending a tone, then the UV5 would have not opened its squelch, and you would not receive the call.
>
> And yes the transmission is open to everyone to hear. All that TSQL does is tell your radio to ignore all transmissions it receives EXCEPT for those that also carry the CTCSS tone. Please note that if two radios are transmitting on the same freq, and one uses the tone to open your squelch, you will hear both transmissions simultaneously.
>
> Gotta go offline for the rest of the day...sorry.
>
> ~Rich~
>
> On 2016-06-08 10:15:-0400, Jeffrey wrote:
>> Thanks Rick.
>>
>> I just tried setting Tone Mode to "Tone" with a tone of 67.0 it the UV5R was able to receive from the Motorola, but the Motorola could not receive from the UV5R.
>>
>> "Tone: A single CTCSS tone is transmitted, receive squelch is open or carrier-triggered. The tone used is that which is set in the Tone column.:"
>>
>> So, if I read this correctly, the Motorola radio transmission is open to everyone? And will filter out everything that does not transmit with the correct tone?�
>>
>> Tone mode as "Tone" should work if I have the correct tone, and the radio is sending it correctly. Right?
>>
>> Jeff
>>
>> On Wed, Jun 8, 2016 at 9:55 AM, Rich Messeder <<mailto:rich.messeder at gmail.com>rich.messeder at gmail.com> wrote:
>> I think this is a good question. I have recently acquired 2 BaoFeng UV-5RTP. I have programmed them "successfully", but not tested the results.
>>
>> Here is my take on it.
>>
>> I think that CHIRP allows the user to select TSQL, indicating that the ToneSql value is used for repeater access. It is unfortunate that we all don't use the same terms. I opine that CTCSS is the same thing as PL; one is a generic term and the other a vendor term.
>>
>> I understand that Tone in CHIRP is used for receive. If you have Tone selected, then the sender must use the agreed tone to open your squelch. For repeaters, I am not sure that all repeaters use tone (PL, CTCSS) on transmit, as they do on receive. A repeater first senses the carrier on the inbound freq, and then look for the PL tone.
>>
>> My impression is that many radios do not (can not) use PL codes /from/ a repeater that are different from the sending PL tone.
>>
>> Now to 2 radios.
>> The sending unit must send the same tone that the receiving unit is filtering on. So if you are both working simplex, and you both have tone squelch enabled and are using the same PL|CTCSS tones, it should work. I might try that later today or tomorrow if I have the time.
>>
>> From
>> <http://chirp.danplanet.com/projects/chirp/wiki/MemoryEditorColumns>http://chirp.danplanet.com/projects/chirp/wiki/MemoryEditorColumns
>> Tone
>> This sets the CTCSS tone to be transmitted if the Tone Mode is set to Tone. In Cross mode, it has additional meanings (see description of Cross Mode for more details).
>>
>> ToneSql
>> This sets the CTCSS tone to be transmitted and used for receiver squelch if the Tone Mode is set to TSQL. In Cross mode it has additional meanings (see description of Cross Mode for more details).
>>
>> I too have used TSQL for many entries, and now wonder if I should be using Tone, because I want to trigger the repeater with a PL tone, but then want the reply no matter what.
>>
>> ~R~ NE1EE
>> Short email? No html? Here's why: <http://emailcharter.org/>http://emailcharter.org/
>>
>> On 2016-06-08 09:26:-0400, Jeffrey wrote:
>>> Hey everyone,
>>>
>>> I'm pretty new to radios in general, and more so programming them, but I'll do my best to get the terminology right.
>>>
>>> I'm trying to use CHIRP to program a UV-5R so that it can communicate with a Motorola radio on a certain frequency.�  The Motorola is set to use 151.9400 with a PL tone of 67.0 for both send and receive.
>>>
>>> PL is the same as CTCSS correct?
>>>
>>> On the UV-5R, I've got Tone Mode set as TSQL and ToneSql set to 67.0 - and it does not work? The two radios are not communicating.�  Am I missing something? Something special about Motorola PL tones? Should be a standard right?
>>>
>>> Thanks for any advice.
>>>
>>> Jeff
>>> Jeffrey Fongemie Â�  Â
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>> -- 
>> ______________
>>
>> Jeffrey Fongemie �  �
>>
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-- 
Nigel Johnson
MSc., MIEEE
VE3ID/G4AJQ/VA3MCU

Amateur Radio, the origin of the open-source concept!

http://nigel.homelinux.net
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