Berean Study Bible
To convene the assembly, you are to sound long blasts, not short ones.

King James Bible
But when the congregation is to be gathered together, ye shall blow, but ye shall not sound an alarm.

American Standard Version
But when the assembly is to be gathered together, ye shall blow, but ye shall not sound an alarm.

Darby Bible Translation
And when the congregation is to be gathered together, ye shall blow, but ye shall not blow an alarm:

Douay-Rheims Bible
But when the people is to be gathered together, the sound of the trumpets shall be plain, and they shall not make a broken sound.

English Revised Version
But when the assembly is to be gathered together, ye shall blow, but ye shall not sound an alarm.

Young's Literal Translation
'And in the assembling of the assembly ye blow, and do not shout;