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It’s been awhile
- Thread starter Ziploc
- Start date
Good question...
Not sure of the echo board you speak of, but there are several factors that come into play here...
One is - the type of bypass used...
Simple switch? Then the ohmic losses are from the jumpering used to reroute audio around the board and back into the radio ... If you have a dirty switch, well that adds to your losses...
Buffered? The board uses an IC amp to BUFFER the input and output of the ECHO as the Mic element going to the ECHO - so it doesn't get overloaded. In these boards, the buffer also contains a filter to remove or cut off parts of the spectral energy you are sending the radio - you don't notice this directly - only as a loss in the drive level because of the filtering and the unity gain the amp used that bypasses the echo board, is adding to the loss hit.
Others are spectral - the bandwidth of the echo boards ability to amplify the vocal range as well as the other various overtones and inflections as well as undertones and consonants versus vowel sounds - these are energy levels as well as hits to gain or lose power in the echo effects that the chips have to accommodate so they have to incorporate filters to offset this.
We'll start with that, to see if there's anything we can possibly do to help. But due to the nature of the various mic elements and power levels the mic's generate - the echo board itself can be damaged if you decide to make changes to the amplifier sections of these echo boards to broaden their spectrum or fidelity bandwidth.
Not sure of the echo board you speak of, but there are several factors that come into play here...
One is - the type of bypass used...
Simple switch? Then the ohmic losses are from the jumpering used to reroute audio around the board and back into the radio ... If you have a dirty switch, well that adds to your losses...
Buffered? The board uses an IC amp to BUFFER the input and output of the ECHO as the Mic element going to the ECHO - so it doesn't get overloaded. In these boards, the buffer also contains a filter to remove or cut off parts of the spectral energy you are sending the radio - you don't notice this directly - only as a loss in the drive level because of the filtering and the unity gain the amp used that bypasses the echo board, is adding to the loss hit.
Others are spectral - the bandwidth of the echo boards ability to amplify the vocal range as well as the other various overtones and inflections as well as undertones and consonants versus vowel sounds - these are energy levels as well as hits to gain or lose power in the echo effects that the chips have to accommodate so they have to incorporate filters to offset this.
We'll start with that, to see if there's anything we can possibly do to help. But due to the nature of the various mic elements and power levels the mic's generate - the echo board itself can be damaged if you decide to make changes to the amplifier sections of these echo boards to broaden their spectrum or fidelity bandwidth.
- No one is chatting at the moment.
