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  #1 (permalink)  
Old 10-18-2018, 9:02 PM
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Default mesa pd

why does mesa pd control channels go to sramble at times? So annoying when your streaming. Or is this a scanner issue?
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Old 10-18-2018, 9:04 PM
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Quote:
Originally Posted by thomasbillman1 View Post
why does mesa pd control channels go to sramble at times?
? Need more info.
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Old 10-18-2018, 9:07 PM
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Default mesa pd

i have noticed on the main mesa police channels the police sounds like they are in scramble mode on the control main channels, is it scramble or is it my scanner turning what sounds like encrypted.
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Old 10-18-2018, 9:08 PM
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More than likely simulcast distortion.Or you're scanner is stopping on encrypted tgids on the system.
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Old 10-18-2018, 9:11 PM
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anyway to solve that? so annoying for my guest to listen to. Its not all the time .
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Old 10-18-2018, 9:40 PM
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Simulcast distortion can sometimes be cured by moving the antenna to find a sweet spot that works best. Sometimes it is just a small relocation that is all that is needed.


If you have an outside antenna it might actually be too efficient, try using the attenuator. What happens is that your radio is getting signals from 2 or more of the sites and they tend to cancel each other out. If you can force the radio to hear just one site it usually works better. A directional antenna often helps but you can sometimes reduce the effect of simulcast by tilting the antenna, reducing the length or using a reflector.



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Old 10-19-2018, 9:30 PM
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Quote:
Originally Posted by N9JIG View Post
Simulcast distortion can sometimes be cured by moving the antenna to find a sweet spot that works best. Sometimes it is just a small relocation that is all that is needed.


If you have an outside antenna it might actually be too efficient, try using the attenuator. What happens is that your radio is getting signals from 2 or more of the sites and they tend to cancel each other out. If you can force the radio to hear just one site it usually works better. A directional antenna often helps but you can sometimes reduce the effect of simulcast by tilting the antenna, reducing the length or using a reflector.



It is more an art than a science it seems.
Exactly this. Attenuation is your friend when using an outside antenna. I've also noticed that dropping the digital threshold down to 7 works 80% of the time in clearing up distortion (especially when trying to listen to PRDC on Simulcast B - different system, but sometimes it works for Mesa's TOPAZ too). Granted, this is all specific to my area. Mobile in the truck, little to no issues at all with an antenna made for 800 Mhz.
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Old 10-22-2018, 2:58 AM
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Default What frequency is Mesa Police/Fire?

What frequency is the Mesa Police/Fire stream you are broadcasting on broadcastify? New to radio with my first HT and trying to listen in with it.

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KG7IWH
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Old 10-23-2018, 1:26 AM
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In response to the OP, one of the scanner feeds that streams Mesa PD has one of the SWAT channels in the scan list and those channels are typically encrypted for security purposes. Not really a scanner issue or streaming issue, it's more of an issue of trying to monitor an encrypted channel.
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