¿ªÔÆÌåÓý

  1. Repeater-Builder
  2. Messages
Single Messages Topics Expanded Polls

Re: A poll for preference. Analog or digital?

 

I must admit NXDN is a good product along with the Kenwood line. The audio is very equilized and sounds better than the Motorola..even the Harris stuff sounds better than the Motorola. At IWCE..tested alot of these radios sound quality and I must admit the Icom/Harris engineering came a long way in engineering plus Kenwood gives you 4 channels. I remember a company in Dallas called com-space designed a similiar system that was similiar to the Motorola tetra system that utilized 4 slots per channel. they were using Philip radios and had good audio quality.. too bad they went tits up

----- Original Message -----
From: John <jhaserick84@...>
To: [email protected], Bob Dgler <no6b@...>
Sent: Sun, 14 Feb 2021 18:55:23 -0700 (MST)
Subject: Re: [repeater-builder] A poll for preference. Analog or digital?

I concur with very narrow NXDN giving better results than legacy 5KHz FM. We did a test using a handheld Kenwood NXDN/analog 450 portable on our deck with an NXDN/analog repeater about 40 miles away. Our lot and adjacent land is full of large oak trees, so tons of phasing nulls. With analog, as I moved around the deck, about every few feet the repeater would go from nearly full quieting to completely noise. Walking around the deck the same way on very narrow NXDN, there was 100% voice copy with some areas of R2D2, but very clear copy. Night and day difference between modes!

John W1GPO
On 02/14/2021 6:18 PM Bob Dengler <no6b@...> wrote:


At 2/14/2021 11:22 AM, you wrote:
I believe the best reason to use digital is the same as the basic reason for using a repeater. That is to extend simplex range.
Then there is little reason to use digital. With the possible exception of 4k0 NXDN, I can always hear a signal further into the noise on analog than digital.

But I have heard recordings of on the air tests of hams checking into distant repeaters analog vs fusion, same power levels same antenna and fusion is full quieting and analog was noisy. I have heard an improvement of 30-50%
That has not been my experience. At the point where I can no longer understand an analog NBFM transmission, every 11k0 or wider digital mode has already turned into R2D2 or total silence.

Bob NO6B



Join [email protected] to automatically receive all group messages.