[App_rpt-users] App_rpt-users Digest, Vol 35, Issue 46

Neil Addis (WA5JXY) wa5jxy at gmail.com
Thu Jan 26 15:59:58 EST 2012


If you are really concerned that a relay will "wear out" in your lifetime,
then just buy an adjustable fan switch (close on rise) from Grainger. They
have different models with different temperature ranges, but I suggest an
adjustable one.

They are $8.00

You can control a 12v or 110v fan with these. Stick it to the heatsink of
the PA and it will come on when it gets hot, and shut off when it has
cooled down.

If you insist on trying to control a fan via GPIO (on with PTT and off when
no PTT) then your heatsink will never cool down if your repeater is popular.
If you build the recommended circuit from DMK, you can add a 555 timer to
it to give it some shut off delay if you want. But then, it's gonna cost
you more than the cheap fan switch from Grainger.

But wait, there are no hobbyists anymore that build anything from their
parts bins. Sorry I suggested that!
Go get one from Grainger.....
You only have to splice it into one wire...how hard can that be?

On Thu, Jan 26, 2012 at 9:00 AM, <app_rpt-users-request at ohnosec.org> wrote:

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> Today's Topics:
>
>   1. WebTransceiver stopped working (Michael J. Wolthuis)
>   2. Re: WebTransceiver stopped working (Jim Duuuude)
>   3. Figured it out with web transceiver (Michael J. Wolthuis)
>   4. Re: GPIO fan control (K&R Yoksh)
>   5. Re: GPIO fan control (Tim Sawyer)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Wed, 25 Jan 2012 17:33:52 -0500
> From: "Michael J. Wolthuis" <wolthui3 at msu.edu>
> To: app_rpt-users at ohnosec.org
> Subject: [App_rpt-users] WebTransceiver stopped working
> Message-ID: <4F208350.9080204 at msu.edu>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> I have not made any changes to my node recently, but suddenly
> WebTransceiver has stopped connection.  It was working fine, and the
> rest of the node seems ok.
>
> This is for node ast28241.  The config files are downloaded from the
> portal and have Webtransceiver enabled.  I confirmed UDP port 4569 open
> though my firewall to the system.
>
> Any other suggestions where to look?
>
> I can connect with iaxrpt fine via the gui user.
>
> Mike
> kb8zgl
>
>
>
> ------------------------------
>
> Message: 2
> Date: Wed, 25 Jan 2012 15:55:56 -0800
> From: Jim Duuuude <telesistant at hotmail.com>
> To: <wolthui3 at msu.edu>, app_rpt mailing list
>        <app_rpt-users at ohnosec.org>
> Subject: Re: [App_rpt-users] WebTransceiver stopped working
> Message-ID: <BLU155-W2432EA5FC9C1E5206E7C5B1880 at phx.gbl>
> Content-Type: text/plain; charset="iso-8859-1"
>
>
> works fine for me
>
> > Date: Wed, 25 Jan 2012 17:33:52 -0500
> > From: wolthui3 at msu.edu
> > To: app_rpt-users at ohnosec.org
> > Subject: [App_rpt-users] WebTransceiver stopped working
> >
> > I have not made any changes to my node recently, but suddenly
> > WebTransceiver has stopped connection.  It was working fine, and the
> > rest of the node seems ok.
> >
> > This is for node ast28241.  The config files are downloaded from the
> > portal and have Webtransceiver enabled.  I confirmed UDP port 4569 open
> > though my firewall to the system.
> >
> > Any other suggestions where to look?
> >
> > I can connect with iaxrpt fine via the gui user.
> >
> > Mike
> > kb8zgl
> >
> > _______________________________________________
> > App_rpt-users mailing list
> > App_rpt-users at ohnosec.org
> > http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users
>
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> >
>
> ------------------------------
>
> Message: 3
> Date: Wed, 25 Jan 2012 21:37:13 -0500
> From: "Michael J. Wolthuis" <wolthui3 at msu.edu>
> To: <app_rpt-users at ohnosec.org>
> Subject: [App_rpt-users] Figured it out with web transceiver
> Message-ID: <04da01ccdbd3$699ad940$3cd08bc0$@msu.edu>
> Content-Type: text/plain; charset="us-ascii"
>
> I think the problem is my local router.  It doesn't appear  to allow me to
> NAT out and back in.  The node was on the same IP as I was on trying to use
> web transceiver.  As soon as I changed my computer to NAT out a different
> IP
> address things worked fine.
>
>
>
> Thanks for all the ideas and assistance,
>
> Mike
>
> Kb8zgl
>
>
>
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> ------------------------------
>
> Message: 4
> Date: Wed, 25 Jan 2012 22:20:47 -0600
> From: "K&R Yoksh" <yokshs at gmail.com>
> To: <app_rpt-users at ohnosec.org>
> Subject: Re: [App_rpt-users] GPIO fan control
> Message-ID: <8A51F56D0C83480B9E9928A058ACC051 at main>
> Content-Type: text/plain; format=flowed; charset="iso-8859-1";
>        reply-type=original
>
>
> Hello all,
>
> I considered doing this on my nodes, but didn't want to have a relay or fan
> wear out by cycling on each PTT. I tried using the
> connpgm and discpgm in rpt.conf to enable the fan during connections, and
> disable afterwards, but it was not very effective.
>
> I'd really like to find a fan control script like what I used on
> EchoIRLP...
> Something that activates by PTT, and keeps the fan going for X seconds
> afterwards..
>
> I have multiple GPIO lines available on my parallel port, and still have
> the
> fan control hardware that I built for my EchoIRLP station here. At this
> point,
> the fan is just running 24 x 7.
>
> Maybe someone can come up with such a script? My bash is pretty crude.
>
> 73
>
> Kyle
> K0KN
>
>
> --- Original Message ---
>
> >> Has anyone used the GPIO lines on a URI to active a 12 volt DC fan when
> > the PTT is active?
> >> I have a friend that who wants to implement this on his All-star node to
> > keep his transmitter cool.
> >> I guess that we would need to use a relay with the GPIO line to protect
> > the URI?
> >> Any thoughts or suggestions?
> >> Marshall - ke6pcv
> >
> > Marshall,
> >
> > I had the same idea and I contacted David Kramer at DMK Engineering
> > (makers
> > of the URI).
> > He responded with this link on how to do exactly what you want;
> >
> > http://www.dmkeng.com/images/GPIO_Relay.pdf
> >
> > I tried it and it works great....
> >
> > 73,
> > Neil
> > WA5JXY
>
>
>
> ------------------------------
>
> Message: 5
> Date: Wed, 25 Jan 2012 21:19:40 -0800
> From: Tim Sawyer <tim.sawyer at me.com>
> To: K&R Yoksh <yokshs at gmail.com>
> Cc: app_rpt-users at ohnosec.org
> Subject: Re: [App_rpt-users] GPIO fan control
> Message-ID: <BB8FE6DB-E9A0-4745-AA28-75D5028C43CA at me.com>
> Content-Type: text/plain; CHARSET=US-ASCII
>
> It should be possible to set a bit on the parallel port which follows PTT
> with the events management system.
>
> see http://ohnosec.org/drupal/node/176
>
> I've not tried this but something like this might work:
>
> In rpt.conf
> events=events
> [events]
> cop 62, PP03 = c|e|${RPT_TXKEYED}
>
> A USB node would be needed with a PP03 = out0 in the chan config:
> In simpleusb.conf or usbradio.conf
> PP03 = out0
>
> --
> Tim
> :wq
>
> On Jan 25, 2012, at 8:20 PM, K&R Yoksh wrote:
>
> >
> > Hello all,
> >
> > I considered doing this on my nodes, but didn't want to have a relay or
> fan wear out by cycling on each PTT. I tried using the
> > connpgm and discpgm in rpt.conf to enable the fan during connections,
> and disable afterwards, but it was not very effective.
> >
> > I'd really like to find a fan control script like what I used on
> EchoIRLP... Something that activates by PTT, and keeps the fan going for X
> seconds afterwards..
> >
> > I have multiple GPIO lines available on my parallel port, and still have
> the fan control hardware that I built for my EchoIRLP station here. At this
> point,
> > the fan is just running 24 x 7.
> >
> > Maybe someone can come up with such a script? My bash is pretty crude.
> >
> > 73
> >
> > Kyle
> > K0KN
> >
> >
> > --- Original Message ---
> >
> >>> Has anyone used the GPIO lines on a URI to active a 12 volt DC fan when
> >> the PTT is active?
> >>> I have a friend that who wants to implement this on his All-star node
> to
> >> keep his transmitter cool.
> >>> I guess that we would need to use a relay with the GPIO line to protect
> >> the URI?
> >>> Any thoughts or suggestions?
> >>> Marshall - ke6pcv
> >>
> >> Marshall,
> >>
> >> I had the same idea and I contacted David Kramer at DMK Engineering
> (makers
> >> of the URI).
> >> He responded with this link on how to do exactly what you want;
> >>
> >> http://www.dmkeng.com/images/GPIO_Relay.pdf
> >>
> >> I tried it and it works great....
> >>
> >> 73,
> >> Neil
> >> WA5JXY
> >
> > _______________________________________________
> > App_rpt-users mailing list
> > App_rpt-users at ohnosec.org
> > http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users
>
>
>
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> End of App_rpt-users Digest, Vol 35, Issue 46
> *********************************************
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