Too much compression and you will sound like crud. The ops on 75 meters that run all the rack mounted gear and Heil mics (POS mics in my opinion) sometimes sound like total crap.. I have told many an op that they sound bad only to get a nasty reply in return, LOL.
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speech compression on ssb
- Thread starter Lil'Yeshua
- Start date
I am so glad to hear you say that. I hear those guys from time to time on 38 LSB and they have this monotone nasal drone sound to their audio.
K40 Speech Processor Mic
I supposed then that the K40 Speech Processor mic I have will do a fair job on ssb with the modulation set right.
I supposed then that the K40 Speech Processor mic I have will do a fair job on ssb with the modulation set right.
K40 mic
I bought because it was cool looking,speech compression,amplified,,capacitor,not battery operated,magnetic head,not a road king. :tongue:
I bought because it was cool looking,speech compression,amplified,,capacitor,not battery operated,magnetic head,not a road king. :tongue:
I never had a K40 mobile. How good are they compared to....?
They were good, most were built for them by Uniden.
What do you mean by the "peak to average RATIO ??? Please show me how compute this. Or do you mean peak to average DIFFERENCE ??
Peak to average ratio is a general term used to describe a typical voice modulated waveform. I suppose to be perfectly accurate it should be worded " average peak to absolute peak ratio". In the following image you can clearlt see that without compression the ratio between the average voice peaks and the absolute voice peaks is much greater than the image with compression thus the "peak to average levels" are much lower.
ssb compression
Using no alc but using 5% compression? ALC and IMD - Why compression is better than peak limiting on ssbop:
Using no alc but using 5% compression? ALC and IMD - Why compression is better than peak limiting on ssb
op:
adjusting for the right amount of rf compression
" If you intend to use speech compression, you'd be well advised to increase the ALC level an additional 10%. Remember, compression puts heavy demands on power supplies, no matter how well they are built."...http://www.eham.net/articles/10183
" If you intend to use speech compression, you'd be well advised to increase the ALC level an additional 10%. Remember, compression puts heavy demands on power supplies, no matter how well they are built."...http://www.eham.net/articles/10183
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Nope. It's on it's way back via USPS. Hopefully I'll get it tomorrow. DTB was swamped with business last week and didn't complete the work until last Thursday afternoon. I had him put a diffused red led at the top of the back of the meter. It illuminates on transmit. Also he run a heavier gauge wire from the power in point on the main pcb to the switch because it was dimming on transmit and modulaion. I had mostly cured that problem by running a 4 gauge power wire into a very short section of Galaxy power wire with in-line fuse and plug. It was severely dimming before I changed the power wire after I had adjusted the ssb alc to the 7:30 position per Galaxy Tech's instruction. I had DTB to set the 959's high am power to 4 watts dead key. Mods are 1. Transmit upgrade 2.Receive mod 3.install a Viagra blue dot 'B' board 4. Open the clarifier 5.tune and align
Nope. It's on it's way back via USPS. Hopefully I'll get it tomorrow. DTB was swamped with business last week and didn't complete the work until last Thursday afternoon. I had him put a diffused red led at the top of the back of the meter. It illuminates on transmit. Also he run a heavier gauge wire from the power in point on the main pcb to the switch because it was dimming on transmit and modulaion. I had mostly cured that problem by running a 4 gauge power wire into a very short section of Galaxy power wire with in-line fuse and plug. It was severely dimming before I changed the power wire after I had adjusted the ssb alc to the 7:30 position per Galaxy Tech's instruction. I had DTB to set the 959's high am power to 4 watts dead key. Mods are 1. Transmit upgrade 2.Receive mod 3.install a Viagra blue dot 'B' board 4. Open the clarifier 5.tune and align