TRX-1: Whistler TRX-1 DMR/NXDN

jsb1964

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May 22, 2014
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Location
Farmersville, OH
Hello,

I have a TRX-1 and I'm wondering if DMR and NXDN are activated by default or is there a selection that I have to make on the radio or the EZScan software.

Thank you,
Jeff
 

n4jri

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Jan 10, 2004
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1,653
Location
Richmond, VA
Hello,

I have a TRX-1 and I'm wondering if DMR and NXDN are activated by default or is there a selection that I have to make on the radio or the EZScan software.

Thank you,
Jeff
DMR and NXDN can be activated by default in Search or Sweeper mode (unless excluded in the Search menu), but you have to specify them when programming memory channels. Scroll down 11 or 12 clicks on the Object Menu, and you'll see where you can select either with the SEL button. (a check mark will appear when the mode is selected, and other modes will then be excluded)

73/Allen (N4JRI)
 

jsb1964

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May 22, 2014
Messages
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Location
Farmersville, OH
Thank you for your reply! When I did activate DMR, I noticed I wasn’t picking up any trunking systems. Just conventional and the occasional DMR. Is that what you meant by other modes would be excluded?
 

jsb1964

Newbie
Premium Subscriber
Joined
May 22, 2014
Messages
23
Location
Farmersville, OH
I had programmed it using the EZScan software, but I noticed that I was not picking up any DMR communications like I was before. Is there a token in the EZScan software that will turn DMR on and allow me to hear digital and conventional broadcast as well?
 

n4jri

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Premium Subscriber
Joined
Jan 10, 2004
Messages
1,653
Location
Richmond, VA
I had programmed it using the EZScan software, but I noticed that I was not picking up any DMR communications like I was before. Is there a token in the EZScan software that will turn DMR on and allow me to hear digital and conventional broadcast as well?
If you program DMR into a memory channel (without programming filtering elements like color code, timeslot, talkgroup) you'll hear everything on that frequency--whether trunked or conventional--but you won't hear other modes on that freq. There are two ways to monitor a freq in multiple modes:
1 - Program it in using 'Tune' (Fn-0). This amounts to a single frequency search, and you should get any FM or digital mode that hasn't been excluded in the Search Menu. The downside of this is that I feel like the radio is sluggish in reading the digital mode of not-so-strong signals or really short transmissions.
2 - Program the same frequency in different memory channels--FM, DMR and NXDN, and see which channel yields audio. I feel like this method is more reliable--possibly because the radio doesn't have to check but one digital mode per channel.

Because the TRX doesn't sense or read trunking information, I generally program suspected trunks as conventional frequencies and record them. I then look at the metadata from the recordings to see if there are signs of trunking such as the same talkgroup appearing on more than one frequency or more than one timeslot.

73/Allen (N4JRI)
 
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