TRX-1

[joeyjimmie]

Have small problem with conventional analogue transmissions.
The first second or so is clipped.
Any ideas.

 

[troymail]

Analog? That's somewhat unusual (I think). Is it clipped if you are HOLDing on only that channel or only when scanning multiple channels?

 

[Ubbe]

If you get the sq open delay at search it could be the ZeroMatic, try turning it off.
Also try to program the analog channel DG mode=Ana and Rx Mode=FM or NFM and see what happens.

The TRX scanners have an inbuilt delay of approx 0,5 sec until audio is heard from the speaker and is very annoying
when comparing to another scanner running side by side that doesn't clip the beginning of each sq opening.

/Ubbe

 

[troymail]

If you get the sq open delay at search it could be the ZeroMatic, try turning it off.
Also try to program the analog channel DG mode=Ana and Rx Mode=FM or NFM and see what happens.

The TRX scanners have an inbuilt delay of approx 0,5 sec until audio is heard from the speaker and is very annoying
when comparing to another scanner running side by side that doesn't clip the beginning of each sq opening.

/Ubbe

Good point - if the frequency is certain to be analog, you don't want the modulation type (Mode) to be set to "Auto".

"Auto" makes the radio work harder (sometimes meaning more slowly) and can cause a delay until the radio determines if the signal is analog or digital. Explicitly setting known values (vs. using Auto) can help.

 

[K9DAK]

"Auto" makes the radio work harder (sometimes meaning more slowly) and can cause a delay until the radio determines if the signal is analog or digital. Explicitly setting known values (vs. using Auto) can help.

Yep... and same applies to analog CTCSS mode... if you know it, program it... if you know it's CSQ, set CTCSS mode to "none." I've found that CTCSS set to "search" causes that same delay.

 

[daddyjohn]

Is there an easy way to tell whether a frequency analog or not?

Sent from my SAMSUNG-SM-T337A using Tapatalk

 

[Ubbe]

Cross check with RR database? If you are unsure set it to analog and if you hear a datasignal instead of voice then it's time to go digital on that channel.

/Ubbe

 

[daddyjohn]

Thank you

Sent from my SAMSUNG-SM-T337A using Tapatalk

 

[BrianG61UK]

Auto is supposed to detect whether it's digital or analogue?

It never works for me on my WS1088.

 

[troymail]

Is there an easy way to tell whether a frequency analog or not?

Sent from my SAMSUNG-SM-T337A using Tapatalk

Lacking any solid other solid documented information, the best option is probably just listening.

In some cases, depending upon some combination of your location, how dense the signal environment is and other factors, you could find both digital and analog users on any given frequency.

I've encountered frequencies in large cities with multiple different business/licenses using the same frequency (using different discriminators like color code, etc.).

Auto is supposed to detect whether it's digital or analogue?

It never works for me on my WS1088.

Ok, maybe partially.

In limit searches, I think the auto detect works fairly well. However, for programmed conventional objects, from what I see, auto seems to work for P25 but perhaps not for DMR (and NXDN on the TRX). Perhaps this is because P25 on scanners has been around much longer than the other modes.

I do alot of area searches based on license data (looking for mostly DMR and NXDN). Because of the above, I create a batch of conventional objects in analog mode so I can hear what is on any given frequency. As soon as I hear digital noise, I'll update that object to DMR, NXDN and then resume scanning.

 

[racingfan360]

In limit searches, I think the auto detect works fairly well. .

I'd be interested to note other's observations on how well auto detect works on Spectrum Sweeper on the TRX-1.....

My experience is that it NEVER works for DMR or NXDN (it always defaults to analogue) in Spectrum Sweeper, but seems to work ok on Limit Searches. Do others get the same experience or something different?

 

[BrianG61UK]

Lacking any solid other solid documented information, the best option is probably just listening.

In some cases, depending upon some combination of your location, how dense the signal environment is and other factors, you could find both digital and analog users on any given frequency.

I've encountered frequencies in large cities with multiple different business/licenses using the same frequency (using different discriminators like color code, etc.).



Ok, maybe partially.

In limit searches, I think the auto detect works fairly well. However, for programmed conventional objects, from what I see, auto seems to work for P25 but perhaps not for DMR (and NXDN on the TRX). Perhaps this is because P25 on scanners has been around much longer than the other modes.

I do alot of area searches based on license data (looking for mostly DMR and NXDN). Because of the above, I create a batch of conventional objects in analog mode so I can hear what is on any given frequency. As soon as I hear digital noise, I'll update that object to DMR, NXDN and then resume scanning.

On my WS1088 it sort of works sometimes with searches.

But if I program a conventional frequency as auto it just seems to do analog.

Since the instructions are so vague about what auto means I just assumed that in that case it meant AM or FM picked according to the band plan rather than that it would in any sense attempt to work out what it was receiving, let alone work out if it was analog or DMR.

 

[ynot58]

On my WS1088 it sort of works sometimes with searches.

But if I program a conventional frequency as auto it just seems to do analog.

Since the instructions are so vague about what auto means I just assumed that in that case it meant AM or FM picked according to the band plan rather than that it would in any sense attempt to work out what it was receiving, let alone work out if it was analog or DMR.

 

[ynot58]

Interestingly I've been using spectrum sweeper for some time in an area where there is everything nxd, dmr, etc. And it always works best with all band stock antenna. I tried radio shack 800 antenna but locks up a lot and missing things as the stock antenna keeps it tuned for all bands and zeromatic on or off doesn't Matter .