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The wider the audio bandwidth of the transciever you're using, the more effective a device like the W21HY EQ will be. If your transciever won't broadcast audio frequencies under, say, 300hz or over 2400hz, then trying to boost/cut freqs below 300 or over 2400 just won't happen.

If you have an audio signal generator, connect the generator output to the mic input, put your rig in the PA mode, and sweep the freq up from 0hz to 5000 hz. Note the freqs when (1)you begin getting audio output, and (2) when the audio begins to cut off. Subtract the lower freq from the higher. The result is the bandwidth capability of your radio's audio section. This is not necessarily the transmitted audio bandwidth, but it will give you a good idea as to your rig's capabilities.

The W21HY EQ allows cut/boost from 50 hz to 3200 hz. So, the closer a radio gets to a 3khz bandwidth, the more effective the EQ will be. Just don't expect miracles.

- 399

<blockquote data-quote="unit_399" data-source="post: 552902" data-attributes="member: 7311">The wider the audio bandwidth of the transciever you&#039;re using, the more effective a device like the W21HY EQ will be. If your transciever won&#039;t broadcast audio frequencies under, say, 300hz or over 2400hz, then trying to boost/cut freqs below 300 or over 2400 just won&#039;t happen.If you have an audio signal generator, connect the generator output to the mic input,&nbsp; put your rig in the PA mode, and sweep the freq up from 0hz to 5000 hz. Note the freqs when&nbsp; (1)you begin getting audio output, and (2) when the audio begins to cut off. Subtract the lower freq from the higher. The result is the bandwidth capability of your radio&#039;s audio section. This is not necessarily the transmitted audio bandwidth, but it will give you a good idea as to your rig&#039;s capabilities.The W21HY EQ allows cut/boost from 50 hz to 3200 hz. So, the closer a radio gets to a 3khz bandwidth, the more effective the EQ will be. Just don&#039;t expect miracles.- 399</blockquote>

[QUOTE="unit_399, post: 552902, member: 7311"] The wider the audio bandwidth of the transciever you're using, the more effective a device like the W21HY EQ will be. If your transciever won't broadcast audio frequencies under, say, 300hz or over 2400hz, then trying to boost/cut freqs below 300 or over 2400 just won't happen. If you have an audio signal generator, connect the generator output to the mic input, put your rig in the PA mode, and sweep the freq up from 0hz to 5000 hz. Note the freqs when (1)you begin getting audio output, and (2) when the audio begins to cut off. Subtract the lower freq from the higher. The result is the bandwidth capability of your radio's audio section. This is not necessarily the[I] [U]transmitted[/U][/I] audio bandwidth, but it will give you a good idea as to your rig's capabilities. The W21HY EQ allows cut/boost from 50 hz to 3200 hz. So, the closer a radio gets to a 3khz bandwidth, the more effective the EQ will be. Just don't expect miracles. - 399 [/QUOTE]

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