NX-340

[trevormcfar]

Hi Guys,

What is the difference between Version 1 and Version 2. Any performance increase? The old version (1) was programmed by my dealer at "very Narrow" (not sure what this means), but he had a 6.25 number referrenced on it. The new ones we purchased are Version2 and they were programed the same, but they did them at Narrow (12.5). As such they do not talk to one another. The dealer said they had to upgrade the firmware on version 1, but could not. as such, they programmed all my radios at Very Narrow and they said there may be a differnece in performance but could not tell me what.

Can anyone help Explain what they are doing and if I am getting max performance out of the radio?

Trevor.

 

[racingfan360]

they programmed all my radios at Very Narrow and they said there may be a differnece in performance but could not tell me what.
Can anyone help Explain what they are doing and if I am getting max performance out of the radio?
Trevor.

I can't really help with explaining the version 1 and version 2 differences you quote for a NX340.

However there are some performance enhancements of opting with Very Narrow (also referred to as NXDN4800 or 6.25 kHz bandwidth) vs Narrow (NXDN9600 or 12.5 kHz), as well as being more spectrally efficient. Check out this thread for details:

http://forums.radioreference.com/kenwood-forum/333318-reason-using-9600-nxdn.html

NXDN Narrow and Very Narrow are not compatible (as you've already found out)

 

[ramal121]

When NX340's first came out (ver 1) the were only capable of operating on very narrow bandwidth (6.25KHz). Other NX radios could be set for very narrow or narrow (12.5 KHz) in contrast.

As mentioned, all radios need to be set the same otherwise no make speaks between the two.

Version 2 radios now do dual bandwidths. Why your dealer sold you newer radios with the wrong bandwidth in them is beyond me. Don't they keep customer records? If all you are doing is voice, very narrow works just fine. No need to upgrade firmware of the earlier radios, they will all talk just peachy.

Get your dealer to square away the radios so they all talk together and tell them to quit jacking you around.

 

[Shawnlin20]

So can a V1 radio be upgraded to a V2?

 

[SAFFA]

No you cant, V2 was a hardware upgrade over V1

 

[kayn1n32008]

So can a V1 radio be upgraded to a V2?

As SAFFA said, it can not be upgraded due to being different hardware. Having said that, have your dealer program the Ver. 2 radios to be very narrow(NXDN4800). Also don't let them charge you for it. They screwed up and as such, should be making it right.

 

[EWC_BDN]

From what i know. In my companies experience, very narrow has better range in most cases. we had a customer switch to Narrow due to them added a data system. They lost coverage when they went to 12.5 vs what they had at 6.25.

The rx specs for 6.25 are better on paper too, at least for the NX300. For that radio, they listed 6.25 as having <3%BER at 0.20uV vs the 12.5 had <3%BER at 0.25uV. NX340 lists <3 BER for 0.25uV with 6.25. It doesn't list a spec for the 12.5.