On 5/3/2010 12:08 PM, N1BUG wrote:
I'm guessing I am not the first to want to do this...
I want to use a UHF Micor for a link. I want to be able to stop the
PL encode immediately when a user unkeys, but I want the controller
to be able to hold the transmitter up (without PL tone) for sending
I'm guessing I am not the first to want to do this...
I want to use a UHF Micor for a link. I want to be able to stop the
PL encode immediately when a user unkeys, but I want the controller
to be able to hold the transmitter up (without PL tone) for
sending IDs.
There appears to be
On 5/3/2010 1:08 PM, Jeff DePolo wrote:
I'm guessing I am not the first to want to do this...
I want to use a UHF Micor for a link. I want to be able to stop the
PL encode immediately when a user unkeys, but I want the controller
to be able to hold the transmitter up (without PL tone) for
Jeff DePolo wrote:
Pin 701 on the board (base of Q704) is PL Inhibit - pull to ground to kill
the encoder.
Thanks Jeff,
I did notice P701 on the schematic. Any experience on whether a
transistor will pull it low enough or do I need something better?
Guess I'll try a transistor and see what
wd8chl wrote:
The usual method we've used is to pull it to ground when you don't want
tone with a transistor or a FET. You can remember though that, depending
on your link rx, letting the Micor encode reverse burst will close the
squelch quicker than just letting it coast. My experience is
@yahoogroups.com
Subject: Re: [Repeater-Builder] Micor PL encoder modification
(TLN5731A)
Jeff DePolo wrote:
Pin 701 on the board (base of Q704) is PL Inhibit - pull to
ground to kill
the encoder.
Thanks Jeff,
I did notice P701 on the schematic. Any experience on whether
N1BUG wrote:
Squelch tails are *probably* not going to be much of an issue since
I plan to use AND squelch with PL and the infamous Micor carrier
squelch at the receive end of the link.
DUH! Not my best day...
Looks like I will end up killing squelch crashes with an audio delay
in any
@yahoogroups.com
Subject: Re: [Repeater-Builder] Micor PL encoder
modification (TLN5731A)
wd8chl wrote:
The usual method we've used is to pull it to
ground when you don't want
tone with a transistor or a FET. You can
remember though that, depending
on your link rx, letting the Micor encode
Would this still allow the reverse-burst to pass through, or just
abruptly cut off?
On 05/03/2010 12:14 PM, wd8chl wrote:
On 5/3/2010 1:08 PM, Jeff DePolo wrote:
I'm guessing I am not the first to want to do this...
I want to use a UHF Micor for a link. I want to be able to stop the
PL
Leroy A. M. Baptiste wrote:
I have a question for the group. What is reverse
burst? And when is it used? Motorola radios.
Leroy,
I'm sure others can explain it better, but...
Reverse burst was / is used by Motorola and others to eliminate
squelch crashes at the receiving end of a comm
Tony KT9AC wrote:
Would this still allow the reverse-burst to pass through, or just
abruptly cut off?
Pin 701 on the board (base of Q704) is PL Inhibit - pull to ground
to kill
the encoder.
Grounding pin 701 would kill the tone entirely, including reverse
burst. Which is what I asked
, May 03, 2010 2:30 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Micor PL encoder
modification (TLN5731A)
Leroy A. M. Baptiste wrote:
I have a question for the group. What is reverse
burst? And when is it used? Motorola radios.
Leroy,
I'm sure others can explain
That's right Leroy, reverse burst was invented to overcome the
problem of tone decoders being relatively slow to realize the tone
went away and thus producing a somewhat long burst of noise before
muting the speaker.
Paul
Leroy A. M. Baptiste wrote:
Hi Paul, thanks, I think that
Thanks again Paul, I really do appreciate it.
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On
Behalf Of N1BUG
Sent: Monday, May 03, 2010 2:50 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Micor PL encoder
14 matches
Mail list logo
