Search found 325 matches

by kd2lh
Mon Sep 21, 2020 1:08 am
Forum: General discussions
Topic: Motorboating on Tx audio
Replies: 8
Views: 247

Re: Motorboating on Tx audio

Well, checking for dither was worth the test.

The hiss would reflect less dynamic range caused by eliminating the low order sample data.

It would be interesting to capture the analog data on the way into the DAC to see if the motorboating is in the analog audio.
by kd2lh
Sat Sep 19, 2020 2:19 am
Forum: General discussions
Topic: Motorboating on Tx audio
Replies: 8
Views: 247

Re: Motorboating on Tx audio

Interesting... I spoke with someone a couple of days ago that said they were using a Motorola mobile XPR4550 through an area repeater (I was receiving them through a jumbospot and a Motorola handheld) and there was low level motor boating on the signal. I don't think I've ever heard it on my equipme...
by kd2lh
Mon Sep 14, 2020 9:53 pm
Forum: New members post here first
Topic: merci pour votre Forum
Replies: 1
Views: 71

Re: merci pour votre Forum

Welcome to a great project!

Bienvenue dans un grand projet!

J'ai eu le plaisir de travailler à Montpellier il y a plusieurs années, ainsi que de rendre visite à mes proches à Fréjus. Vous vivez dans une belle région.
by kd2lh
Sun Sep 13, 2020 7:27 pm
Forum: General discussions
Topic: Proposal - remove CPS download Digital Contacts function
Replies: 7
Views: 106

Re: Proposal - remove CPS download Digital Contacts function

I do think people are confused between the DMR ID Database and the Digital Contacts. The DMR ID database can hold a vast number of call sign to operator name mappings. This is, of course, a great feature of OpenGD77. I don't think I need to import vast numbers of IDs into the Digital Contacts tables...
by kd2lh
Fri Sep 11, 2020 4:45 pm
Forum: New members post here first
Topic: New to any sort of radio
Replies: 6
Views: 168

Re: New to any sort of radio

The potential legal issue is that your national radio regulator may require type acceptance of a radio to be used on unlicensed frequencies. That type acceptance typically specifies a number of technical characteristics for the radio (including limited power output) that the radio is evaluated for b...
by kd2lh
Fri Sep 11, 2020 4:39 pm
Forum: New members post here first
Topic: New owner/user - initial impressions
Replies: 3
Views: 80

Re: New owner/user - initial impressions

Hi Darrin, and welcome to the project. I cannot confirm those problems. No spontaneous reboots have occurred on any of my GD77 radios. I'm using a recent version of the unstable firmware. You might double check how close your unit is to the frequency your MD390 is on. If you have a hotspot that does...
by kd2lh
Tue Sep 08, 2020 9:56 pm
Forum: General discussions
Topic: What is the advantage of openGD77 vs OEM firmware?
Replies: 9
Views: 275

Re: What is the advantage of openGD77 vs OEM firmware?

With OpenGD77, you don't have to dedicate a programmed channel to every frequency / talk group ID pair. You can define one channel for a hotspot or repeater's frequencies, and then scroll through all the talk groups that you've defined as available on it without changing to different programmed chan...
by kd2lh
Fri Sep 04, 2020 8:13 pm
Forum: New members post here first
Topic: NEW to OpenGD77, but not Ham Radio
Replies: 4
Views: 134

Re: NEW to OpenGD77, but not Ham Radio

Welcome to the project,Phil. I think you'll be impressed with OpenGD77, and enjoy DMR. Look into Brandmeister as your VOIP switch backbone. I think it's the most reliable and mature of what's out there. With some work, you'll find the "JumboSpot" simplex or duplex hot spots with PiStar and a Raspber...
by kd2lh
Wed Sep 02, 2020 11:49 pm
Forum: New members post here first
Topic: Hello!
Replies: 1
Views: 61

Re: Hello!

Welcome to a great project!
by kd2lh
Fri Aug 28, 2020 10:58 pm
Forum: New members post here first
Topic: hello
Replies: 2
Views: 76

Re: hello

Welcome to the project. I think you'll find the OpenGD77 CPS and firmware rather interesting and useful.

Marc