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More information is needed.....
Are they also on a ham band, or VHF Marine.....?
If they are talking on VHF Marine radios, there is no scrambling of the signal unless they are using an outboard device which is illegal on that radio service. And if that "is" the case, you would need to know what type of scrambling device they are using in order to de-scramble their signal.
However chances are if you are hearing them on VHF Marine, and you believe they are scrambled, it could be you do not have their frequency programmed in exactly correct, 5 or 10 Kc's off frequency would make their signal appear scrambled.

If they are on the 2 meter ham band, again I do not believe scrambling devices are allowed, CTCSS or DCS tone encoding is, but if that's what they are using, you'll see a signal strength reading on your "S" meter with no audio at all....

<blockquote data-quote="WX2MIG" data-source="post: 153035" data-attributes="member: 8397">More information is needed.....Are they also on a ham band, or VHF Marine.....?If they are talking on VHF Marine radios, there is no scrambling of the signal unless they are using an outboard device which is illegal on that radio service. And if that &quot;is&quot; the case, you would need to know what type of scrambling device they are using in order to de-scramble their signal.However chances are if you are hearing them on VHF Marine, and you believe they are scrambled, it could be you do not have their frequency programmed in exactly correct, 5 or 10 Kc&#039;s off frequency would make their signal appear scrambled.If they are on the 2 meter ham band, again I do not believe scrambling devices are allowed, CTCSS or DCS tone encoding is, but if that&#039;s what they are using, you&#039;ll see a signal strength reading on your &quot;S&quot; meter with no audio at all....</blockquote>

[QUOTE="WX2MIG, post: 153035, member: 8397"] More information is needed..... Are they also on a ham band, or VHF Marine.....? If they are talking on VHF Marine radios, there is no scrambling of the signal unless they are using an outboard device which is illegal on that radio service. And if that "is" the case, you would need to know what type of scrambling device they are using in order to de-scramble their signal. However chances are if you are hearing them on VHF Marine, and you believe they are scrambled, it could be you do not have their frequency programmed in exactly correct, 5 or 10 Kc's off frequency would make their signal appear scrambled. If they are on the 2 meter ham band, again I do not believe scrambling devices are allowed, CTCSS or DCS tone encoding is, but if that's what they are using, you'll see a signal strength reading on your "S" meter with no audio at all.... [/QUOTE]

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