Very Confused

[scannerjunkie]

So i recently updated a friends 668 from 3.8 to 4.6. now the reception is very bad on p25 systems. missing quite a bit but not all transmissions, only hearing one side of a conversation at times and signal strength is all over the place. no where near the performance when using 3.8. i know its not the scanner because i went back to 3.8 and scanner was working fantastic. went and reloaded 4.6. same result. what settings and adjustments should i look into? this has me stumped. any help would be great. thanks

 

[JustLou]

So i recently updated a friends 668 from 3.8 to 4.6. now the reception is very bad on p25 systems. missing quite a bit but not all transmissions, only hearing one side of a conversation at times and signal strength is all over the place. no where near the performance when using 3.8. i know its not the scanner because i went back to 3.8 and scanner was working fantastic. went and reloaded 4.6. same result. what settings and adjustments should i look into? this has me stumped. any help would be great. thanks

Did you remember to also update the DSP?

Edit: I assume you did since you updated from 3.8, not the RS Firmware.

 

[scannerjunkie]

Yes. updated to most recent. used tool to do fw upgrade then checked info using ezscan. all is current.

 

[JustLou]

That's weird. I didn't really notice any difference between 3.8, 4.5, or 4.6.

 

[Wackyracer]

Reinstall the firmware and report back.

 

[scannerjunkie]

Just Did the reinstalling. Results are the same.

 

[Wackyracer]

What version ezscan do you have?

The latest is 2.19 if you don't have that install it then reload the data into your scanner,

 

[scannerjunkie]

I do have a slightly older version of ezscan. Was afraid to upgrade if I had to stay at version 3.8. I'm thinking a setting or something changed in the scanner when it went from 3.8 to 4.6. I don't know.

 

[Wackyracer]

upgrade to 2.19, reseat the micro sd card and report back.

 

[scannerjunkie]

Wackyracer. if I upgrade ezscan will I still be able to use it with 3.8 fw if I need to go back? Also you mention reseating the sd card. Do you mean just taking it out and reinstalling in scanner?

 

[Wackyracer]

Wackyracer. if I upgrade ezscan will I still be able to use it with 3.8 fw if I need to go back? Also you mention reseating the sd card. Do you mean just taking it out and reinstalling in scanner?

That I don't know as I have no need to go back as both 4.5 and 4.6 work great for me. If you have another computer put 2.19 on it and try it. Honestly I don't of anyone that firmware 4.5 and 4.6 wasn't better for them.

Do you have DSP 3.0 installed?

Yes, install and remove the card several times.

 

[scannerjunkie]

Yes. Dsp is at 3.0. Just removed and reinstalled sd card a few times. Will see how she does.

 

[Wackyracer]

What antenna is on the scanner?

 

[scannerjunkie]

RS 800 mhz

 

[scannerjunkie]

I moved the squelch knob so the line on the knob faces in the 9 o'clock position. Seems to have helped. I see a more consistent flashing T and less flashing S. When scanning and holding on a channel. Won't be able to really tell till tomorrow when theirs more radio traffic.

 

[Wackyracer]

Turn it all the way counter clockwise and see if it improves.

 

[Wackyracer]

Do you have any attenuation turned on? if so try turning it off, If it is off try turning it on and see if it helps. Too strong a signal acts just like a weak signal except you have 5+ bars on the signal meter.

 

[scannerjunkie]

I left all settings the same as they were when I was using 3.8. I did try the att settings and still is the same. I did however moved the squelch and I now have much clearer and both sides of t ransmissions. See talk groups I never seen before. I may be on to something.

 

[scannerjunkie]

I seem to be still having the issue with 4.6 not receiving p25 like 3.8 was. what do i look into as far as threshold settings gain settings and do i need to have all site frequencies selected or just the primary and alternate? im monitoring starcom 21 cook south 700mhz.

 

[Wackyracer]

I seem to be still having the issue with 4.6 not receiving p25 like 3.8 was. what do i look into as far as threshold settings gain settings and do i need to have all site frequencies selected or just the primary and alternate? im monitoring starcom 21 cook south 700mhz.

Try asking in the Illinois thread.