[Elecraft] K4 Headphones Q

[E.H. Russell]

Analog radios have almost no latency, but it's almost impossible to find a
pure analog radio anymore. Most conventional radios switch over to DSP in
the IF stage, which introduces anywhere from a few ms of latency up. For
example, the TS-890s hybrid has about 25ms receive latency. Then when you go
to full SDR you probably get a somewhat bigger number, anywhere from 40 up.
But the real source of latency in current systems is Bluetooth, which can
run in the range of 200ms. New Bluetooth protocols aim to bring that down to
a reasonable 40ms, but they aren't widely available yet.

So for now, use wired headphones.

ED / W2RF




-----Original Message-----
From: elecraft-bounces at mailman.qth.net <elecraft-bounces at mailman.qth.net> On
Behalf Of Jim Brown
Sent: Wednesday, October 14, 2020 1:00 PM
To: elecraft at mailman.qth.net
Subject: Re: [Elecraft] K4 Headphones Q

On 10/14/2020 8:31 AM, E.H. Russell wrote:
> Wireless introduces latency, wired does not.

DIGITAL introduces latency, NOT radio. ANALOG radio over short distances
does NOT add latency. In systems like Bluetooth, it is the A/D and D/A
conversions that add latency, NOT the radio transmission of the digital
signal.

73, Jim K9YC
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft at mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html Message
delivered to ehr at qrv.com