[amsat-bb] Accessory to add CTCSS tone?

[W3AB/GEO]

PL tones are called subaudible tones. The freq response of the mic and/or the preamp may prevent the 67 hz tone from being "heard" by the modulator circuitry.

⁣___
Sent from my two way wrist watch
73 de W3AB/GEO​

On Mar 31, 2018, 11:05, at 11:05, Pedro Converso <pconver at gmail.com> wrote:
>Hi Todd,
>
>A cheap alternative could be download on your phone/table Frequency
>Sound
>Generator.
>
>Set it to play a 67 Hz tone while speaking, perhaps will do.
>
>73, LU7ABF, Pedro
>
>On Sat, Mar 31, 2018 at 2:18 PM, Paul Stoetzer <n8hm at arrl.net> wrote:
>
>> Todd,
>>
>> If there are others on the satellite, they can keep it open. While we
>> recommend all stations utilize a 67 Hz tone, it does not need to be
>present
>> on each transmission.
>>
>> 73,
>>
>> Paul, N8HM
>>
>> On Sat, Mar 31, 2018 at 1:14 PM Todd W Deckard
><twdeckard at earthlink.net>
>> wrote:
>>
>> > Greetings!
>> >
>> > Can a simple circuit or OTS accessory add the 67hz PL tone to a
>radio
>> > mixing w/ microphone in?
>> >
>> >  I purchased an ICOM IC-X2 from ebay to get access to the L-band
>and my
>> > Japanese was pretty rusty and so I didn’t realize it appears the PL
>tone
>> > squelch was optional on non-US variants of the radio.
>> >
>> > (At least I cannot seem to invoke it thru the menu navigation)
>> >
>> > It’s an awesome little radio and was a great deal.   Is there any
>way I
>> > can build something to inject the 67hz myself?
>> >
>> > Best
>> > Todd
>> >
>> > Sent from my iPhone
>> > _______________________________________________
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>> _______________________________________________
>> Sent via AMSAT-BB at amsat.org. AMSAT-NA makes this open forum available
>> to all interested persons worldwide without requiring membership.
>Opinions
>> expressed
>> are solely those of the author, and do not reflect the official views
>of
>> AMSAT-NA.
>> Not an AMSAT-NA member? Join now to support the amateur satellite
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>>
>_______________________________________________
>Sent via AMSAT-BB at amsat.org. AMSAT-NA makes this open forum available
>to all interested persons worldwide without requiring membership.
>Opinions expressed
>are solely those of the author, and do not reflect the official views
>of AMSAT-NA.
>Not an AMSAT-NA member? Join now to support the amateur satellite
>program!
>Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb