Re: [App_rpt-users] App_rpt-users Digest, Vol 51, Issue 9
Here is a clip about PIN 4 in the Accessory plug of a GM300. 4 Programmable Output Only This is a radio output port. It is an open collector output which saturates to A+ supply when active. It is normally used to drive an external relay or sense lead. It duplicates the function of J3-3 of the five pin logic board. When active it can source a maximum current of 250 mA. The pin has a 10 K ohm resistor pull-down to ground on the logic board. and uses a PNP transistor to switch it up to 12V. This pin does not work as an active low pin (i.e. pulling something to ground), only as an active high (that is dragging something up to +12v). If you want an active high output to drive a reed relay which has the other side of the coil to ground, this is your pin (but don't forget to check that the backwards diode is present on the coil pins). Bill Hurlock -----Original Message----- From: app_rpt-users-bounces@ohnosec.org [mailto:app_rpt-users-bounces@ohnosec.org] On Behalf Of app_rpt-users-request@ohnosec.org Sent: Friday, May 10, 2013 12:00 PM To: app_rpt-users@ohnosec.org Subject: App_rpt-users Digest, Vol 51, Issue 9 Send App_rpt-users mailing list submissions to app_rpt-users@ohnosec.org To subscribe or unsubscribe via the World Wide Web, visit http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users or, via email, send a message with subject or body 'help' to app_rpt-users-request@ohnosec.org You can reach the person managing the list at app_rpt-users-owner@ohnosec.org When replying, please edit your Subject line so it is more specific than "Re: Contents of App_rpt-users digest..."
<http://www.batlabs.com/images/gmacc8.gif> Gotcha. Not sure if you mentioned if yours was a 16 channel or not. If an 8 channel, the above link lists pin 4 as a spare, and instructs that pin 8 should be used for COR active low. Since you mentioned getting voltage out of pin 4, I'm assuming yours is a 16 channel radio. Folks with an 8 channel model would not have the option you are using. N5ZUA ----- Original Message ----- From: "Bill Hurlock" <bill.hurlock@cpcomms.com> To: <app_rpt-users@ohnosec.org> Sent: Friday, May 10, 2013 3:54 PM Subject: Re: [App_rpt-users] App_rpt-users Digest, Vol 51, Issue 9
Here is a clip about PIN 4 in the Accessory plug of a GM300.
4 Programmable Output Only This is a radio output port. It is an open collector output which saturates to A+ supply when active. It is normally used to drive an external relay or sense lead. It duplicates the function of J3-3 of the five pin logic board. When active it can source a maximum current of 250 mA. The pin has a 10 K ohm resistor pull-down to ground on the logic board. and uses a PNP transistor to switch it up to 12V. This pin does not work as an active low pin (i.e. pulling something to ground), only as an active high (that is dragging something up to +12v). If you want an active high output to drive a reed relay which has the other side of the coil to ground, this is your pin (but don't forget to check that the backwards diode is present on the coil pins).
Bill Hurlock
Just a suggestion in general: We are ham radio operators. By definition, we have, at least, a certain basic knowledge of electronics (as is required to pass our test). If two devices are somehow electrically incompatible with each other, use your knowledge of electronics to build a simple circuit to interface them together. Converting from one set of "levels" to another is REALLY not that difficult. That's why we are what we are, and do what we do. Jim WB6NIL P.S. Or, you can use pin 8 *LIKE EVERY ONE ELSE DOES*!!
From: n5zua@earthlink.net To: app_rpt-users@ohnosec.org Date: Fri, 10 May 2013 16:14:00 -0500 Subject: Re: [App_rpt-users] GM300
<http://www.batlabs.com/images/gmacc8.gif>
Gotcha. Not sure if you mentioned if yours was a 16 channel or not. If an 8 channel, the above link lists pin 4 as a spare, and instructs that pin 8 should be used for COR active low. Since you mentioned getting voltage out of pin 4, I'm assuming yours is a 16 channel radio. Folks with an 8 channel model would not have the option you are using.
N5ZUA
----- Original Message ----- From: "Bill Hurlock" <bill.hurlock@cpcomms.com> To: <app_rpt-users@ohnosec.org> Sent: Friday, May 10, 2013 3:54 PM Subject: Re: [App_rpt-users] App_rpt-users Digest, Vol 51, Issue 9
Here is a clip about PIN 4 in the Accessory plug of a GM300.
4 Programmable Output Only This is a radio output port. It is an open collector output which saturates to A+ supply when active. It is normally used to drive an external relay or sense lead. It duplicates the function of J3-3 of the five pin logic board. When active it can source a maximum current of 250 mA. The pin has a 10 K ohm resistor pull-down to ground on the logic board. and uses a PNP transistor to switch it up to 12V. This pin does not work as an active low pin (i.e. pulling something to ground), only as an active high (that is dragging something up to +12v). If you want an active high output to drive a reed relay which has the other side of the coil to ground, this is your pin (but don't forget to check that the backwards diode is present on the coil pins).
Bill Hurlock
_______________________________________________ App_rpt-users mailing list App_rpt-users@ohnosec.org http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users
or even electromechanical...:) Strowger switches arestill useful devices, even if outdated...;) -- Bryan Sent from my iPhone 5...small keyboard, big fingers...please forgive misspellings... On May 10, 2013, at 17:31, Jim Duuuude <telesistant@hotmail.com> wrote:
Just a suggestion in general:
We are ham radio operators. By definition, we have, at least, a certain basic knowledge of electronics (as is required to pass our test).
If two devices are somehow electrically incompatible with each other, use your knowledge of electronics to build a simple circuit to interface them together. Converting from one set of "levels" to another is REALLY not that difficult.
That's why we are what we are, and do what we do.
Jim WB6NIL
P.S. Or, you can use pin 8 *LIKE EVERY ONE ELSE DOES*!!
From: n5zua@earthlink.net To: app_rpt-users@ohnosec.org Date: Fri, 10 May 2013 16:14:00 -0500 Subject: Re: [App_rpt-users] GM300
<http://www.batlabs.com/images/gmacc8.gif>
Gotcha. Not sure if you mentioned if yours was a 16 channel or not. If an 8 channel, the above link lists pin 4 as a spare, and instructs that pin 8 should be used for COR active low. Since you mentioned getting voltage out of pin 4, I'm assuming yours is a 16 channel radio. Folks with an 8 channel model would not have the option you are using.
N5ZUA
----- Original Message ----- From: "Bill Hurlock" <bill.hurlock@cpcomms.com> To: <app_rpt-users@ohnosec.org> Sent: Friday, May 10, 2013 3:54 PM Subject: Re: [App_rpt-users] App_rpt-users Digest, Vol 51, Issue 9
Here is a clip about PIN 4 in the Accessory plug of a GM300.
4 Programmable Output Only This is a radio output port. It is an open collector output which saturates to A+ supply when active. It is normally used to drive an external relay or sense lead. It duplicates the function of J3-3 of the five pin logic board. When active it can source a maximum current of 250 mA. The pin has a 10 K ohm resistor pull-down to ground on the logic board. and uses a PNP transistor to switch it up to 12V. This pin does not work as an active low pin (i.e. pulling something to ground), only as an active high (that is dragging something up to +12v). If you want an active high output to drive a reed relay which has the other side of the coil to ground, this is your pin (but don't forget to check that the backwards diode is present on the coil pins).
Bill Hurlock
_______________________________________________ App_rpt-users mailing list App_rpt-users@ohnosec.org http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users
App_rpt-users mailing list App_rpt-users@ohnosec.org http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users
Be nice! One remote still has a tall green can in it (Automatic Electric) DIAL 4 for UHF please....... On Fri, May 10, 2013 at 11:44 AM, Bryan D. Boyle <bdboyle@bdboyle.com>wrote:
or even electromechanical...:) Strowger switches arestill useful devices, even if outdated...;)
-- Bryan Sent from my iPhone 5...small keyboard, big fingers...please forgive misspellings...
On May 10, 2013, at 17:31, Jim Duuuude <telesistant@hotmail.com> wrote:
Just a suggestion in general:
We are ham radio operators. By definition, we have, at least, a certain basic knowledge of electronics (as is required to pass our test).
If two devices are somehow electrically incompatible with each other, use your knowledge of electronics to build a simple circuit to interface them together. Converting from one set of "levels" to another is REALLY not that difficult.
That's why we are what we are, and do what we do.
Jim WB6NIL
P.S. Or, you can use pin 8 *LIKE EVERY ONE ELSE DOES*!!
From: n5zua@earthlink.net To: app_rpt-users@ohnosec.org Date: Fri, 10 May 2013 16:14:00 -0500 Subject: Re: [App_rpt-users] GM300
<http://www.batlabs.com/images/gmacc8.gif>
Gotcha. Not sure if you mentioned if yours was a 16 channel or not. If an 8 channel, the above link lists pin 4 as a spare, and instructs that pin 8 should be used for COR active low. Since you mentioned getting voltage out of pin 4, I'm assuming yours is a 16 channel radio. Folks with an 8 channel model would not have the option you are using.
N5ZUA
----- Original Message ----- From: "Bill Hurlock" <bill.hurlock@cpcomms.com> To: <app_rpt-users@ohnosec.org> Sent: Friday, May 10, 2013 3:54 PM Subject: Re: [App_rpt-users] App_rpt-users Digest, Vol 51, Issue 9
Here is a clip about PIN 4 in the Accessory plug of a GM300.
4 Programmable Output Only This is a radio output port. It is an open collector output which saturates to A+ supply when active. It is normally used to drive an external relay or sense lead. It duplicates the function of J3-3 of the five pin logic board. When active it can source a maximum current of 250 mA. The pin has a 10 K ohm resistor pull-down to ground on the logic board. and uses a PNP transistor to switch it up to 12V. This pin does not work as an active low pin (i.e. pulling something to ground), only as an active high (that is dragging something up to +12v). If you want an active high output to drive a reed relay which has the other side of the coil to ground, this is your pin (but don't forget to check that the backwards diode is present on the coil pins).
Bill Hurlock
_______________________________________________ App_rpt-users mailing list App_rpt-users@ohnosec.org http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users
_______________________________________________ App_rpt-users mailing list App_rpt-users@ohnosec.org http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users
_______________________________________________ App_rpt-users mailing list App_rpt-users@ohnosec.org http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users
Wow.. Im sooo inspired... Perhaps I should add dial-pulse signalling to the app_rpt stuff. Can you imagine how interesting it would be on a mobile station in a fringe coverage area?? :-) Date: Fri, 10 May 2013 11:49:48 -1000 Subject: Re: [App_rpt-users] GM300 From: wb6egr@gmail.com To: bdboyle@bdboyle.com CC: telesistant@hotmail.com; app_rpt-users@ohnosec.org Be nice! One remote still has a tall green can in it (Automatic Electric) DIAL 4 for UHF please....... On Fri, May 10, 2013 at 11:44 AM, Bryan D. Boyle <bdboyle@bdboyle.com> wrote: or even electromechanical...:) Strowger switches arestill useful devices, even if outdated...;) --BryanSent from my iPhone 5...smallkeyboard, big fingers...pleaseforgive misspellings... On May 10, 2013, at 17:31, Jim Duuuude <telesistant@hotmail.com> wrote: Just a suggestion in general: We are ham radio operators. By definition, we have, at least, a certain basic knowledge of electronics (as is required to pass our test). If two devices are somehow electrically incompatible with each other, use your knowledge of electronics to build a simple circuit to interface them together. Converting from one set of "levels" to another is REALLY not that difficult. That's why we are what we are, and do what we do. Jim WB6NIL P.S. Or, you can use pin 8 *LIKE EVERY ONE ELSE DOES*!!
From: n5zua@earthlink.net To: app_rpt-users@ohnosec.org
Date: Fri, 10 May 2013 16:14:00 -0500 Subject: Re: [App_rpt-users] GM300
Gotcha. Not sure if you mentioned if yours was a 16 channel or not. If an 8 channel, the above link lists pin 4 as a spare, and instructs that pin 8 should be used for COR active low. Since you mentioned getting voltage out
of pin 4, I'm assuming yours is a 16 channel radio. Folks with an 8 channel model would not have the option you are using.
N5ZUA
----- Original Message ----- From: "Bill Hurlock" <bill.hurlock@cpcomms.com>
To: <app_rpt-users@ohnosec.org> Sent: Friday, May 10, 2013 3:54 PM Subject: Re: [App_rpt-users] App_rpt-users Digest, Vol 51, Issue 9
Here is a clip about PIN 4 in the Accessory plug of a GM300.
4 Programmable Output Only This is a radio output port. It is an open collector output which saturates to A+ supply when active. It is normally
used to drive an external relay or sense lead. It duplicates the function of J3-3 of the five pin logic board. When active it can source a maximum current of 250 mA. The pin has a 10 K ohm resistor pull-down to ground on the logic board.
and uses a PNP transistor to switch it up to 12V. This pin does not work as an active low pin (i.e. pulling something to ground), only as an active high (that is dragging something up to +12v). If you want an active high
output to drive a reed relay which has the other side of the coil to ground, this is your pin (but don't forget to check that the backwards diode is present on the coil pins).
Bill Hurlock
_______________________________________________ App_rpt-users mailing list App_rpt-users@ohnosec.org
_______________________________________________ App_rpt-users mailing list App_rpt-users@ohnosec.org http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users _______________________________________________ App_rpt-users mailing list App_rpt-users@ohnosec.org http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users
lol. i can remember flapping the hook switch to get around the dial lock on the radio station hotline dial back in the dat to make phone calls.. -- Bryan Sent from my iPhone 5...small keyboard, big fingers...please forgive misspellings... On May 10, 2013, at 17:54, Jim Duuuude <telesistant@hotmail.com> wrote:
Wow.. Im sooo inspired... Perhaps I should add dial-pulse signalling to the app_rpt stuff.
Can you imagine how interesting it would be on a mobile station in a fringe coverage area??
:-)
Date: Fri, 10 May 2013 11:49:48 -1000 Subject: Re: [App_rpt-users] GM300 From: wb6egr@gmail.com To: bdboyle@bdboyle.com CC: telesistant@hotmail.com; app_rpt-users@ohnosec.org
Be nice! One remote still has a tall green can in it (Automatic Electric) DIAL 4 for UHF please.......
On Fri, May 10, 2013 at 11:44 AM, Bryan D. Boyle <bdboyle@bdboyle.com> wrote: or even electromechanical...:) Strowger switches arestill useful devices, even if outdated...;)
-- Bryan Sent from my iPhone 5...small keyboard, big fingers...please forgive misspellings...
On May 10, 2013, at 17:31, Jim Duuuude <telesistant@hotmail.com> wrote:
Just a suggestion in general:
We are ham radio operators. By definition, we have, at least, a certain basic knowledge of electronics (as is required to pass our test).
If two devices are somehow electrically incompatible with each other, use your knowledge of electronics to build a simple circuit to interface them together. Converting from one set of "levels" to another is REALLY not that difficult.
That's why we are what we are, and do what we do.
Jim WB6NIL
P.S. Or, you can use pin 8 *LIKE EVERY ONE ELSE DOES*!!
From: n5zua@earthlink.net To: app_rpt-users@ohnosec.org Date: Fri, 10 May 2013 16:14:00 -0500 Subject: Re: [App_rpt-users] GM300
<http://www.batlabs.com/images/gmacc8.gif>
Gotcha. Not sure if you mentioned if yours was a 16 channel or not. If an 8 channel, the above link lists pin 4 as a spare, and instructs that pin 8 should be used for COR active low. Since you mentioned getting voltage out of pin 4, I'm assuming yours is a 16 channel radio. Folks with an 8 channel model would not have the option you are using.
N5ZUA
----- Original Message ----- From: "Bill Hurlock" <bill.hurlock@cpcomms.com> To: <app_rpt-users@ohnosec.org> Sent: Friday, May 10, 2013 3:54 PM Subject: Re: [App_rpt-users] App_rpt-users Digest, Vol 51, Issue 9
Here is a clip about PIN 4 in the Accessory plug of a GM300.
4 Programmable Output Only This is a radio output port. It is an open collector output which saturates to A+ supply when active. It is normally used to drive an external relay or sense lead. It duplicates the function of J3-3 of the five pin logic board. When active it can source a maximum current of 250 mA. The pin has a 10 K ohm resistor pull-down to ground on the logic board. and uses a PNP transistor to switch it up to 12V. This pin does not work as an active low pin (i.e. pulling something to ground), only as an active high (that is dragging something up to +12v). If you want an active high output to drive a reed relay which has the other side of the coil to ground, this is your pin (but don't forget to check that the backwards diode is present on the coil pins).
Bill Hurlock
_______________________________________________ App_rpt-users mailing list App_rpt-users@ohnosec.org http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users
App_rpt-users mailing list App_rpt-users@ohnosec.org http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users
_______________________________________________ App_rpt-users mailing list App_rpt-users@ohnosec.org http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users
Secode head around here somewhere! ----- Original Message ----- From: Jim Duuuude To: Krik Nemzer ; Bryan D. Boyle Cc: app_rpt mailing list Sent: Friday, May 10, 2013 4:54 PM Subject: Re: [App_rpt-users] GM300 Wow.. Im sooo inspired... Perhaps I should add dial-pulse signalling to the app_rpt stuff. Can you imagine how interesting it would be on a mobile station in a fringe coverage area?? :-) ------------------------------------------------------------------------------ Date: Fri, 10 May 2013 11:49:48 -1000 Subject: Re: [App_rpt-users] GM300 From: wb6egr@gmail.com To: bdboyle@bdboyle.com CC: telesistant@hotmail.com; app_rpt-users@ohnosec.org Be nice! One remote still has a tall green can in it (Automatic Electric) DIAL 4 for UHF please....... On Fri, May 10, 2013 at 11:44 AM, Bryan D. Boyle <bdboyle@bdboyle.com> wrote: or even electromechanical...:) Strowger switches arestill useful devices, even if outdated...;) -- Bryan Sent from my iPhone 5...small keyboard, big fingers...please forgive misspellings... On May 10, 2013, at 17:31, Jim Duuuude <telesistant@hotmail.com> wrote: Just a suggestion in general: We are ham radio operators. By definition, we have, at least, a certain basic knowledge of electronics (as is required to pass our test). If two devices are somehow electrically incompatible with each other, use your knowledge of electronics to build a simple circuit to interface them together. Converting from one set of "levels" to another is REALLY not that difficult. That's why we are what we are, and do what we do. Jim WB6NIL P.S. Or, you can use pin 8 *LIKE EVERY ONE ELSE DOES*!! > From: n5zua@earthlink.net > To: app_rpt-users@ohnosec.org > Date: Fri, 10 May 2013 16:14:00 -0500 > Subject: Re: [App_rpt-users] GM300 > > <http://www.batlabs.com/images/gmacc8.gif> > > Gotcha. Not sure if you mentioned if yours was a 16 channel or not. If an 8 > channel, the above link lists pin 4 as a spare, and instructs that pin 8 > should be used for COR active low. Since you mentioned getting voltage out > of pin 4, I'm assuming yours is a 16 channel radio. Folks with an 8 channel > model would not have the option you are using. > > N5ZUA > > ----- Original Message ----- > From: "Bill Hurlock" <bill.hurlock@cpcomms.com> > To: <app_rpt-users@ohnosec.org> > Sent: Friday, May 10, 2013 3:54 PM > Subject: Re: [App_rpt-users] App_rpt-users Digest, Vol 51, Issue 9 > > > > Here is a clip about PIN 4 in the Accessory plug of a GM300. > > > > 4 Programmable Output Only This is a radio output port. It is an open > > collector output which saturates to A+ supply when active. It is normally > > used to drive an external relay or sense lead. It duplicates the function > > of J3-3 of the five pin logic board. When active it can source a maximum > > current of 250 mA. > > The pin has a 10 K ohm resistor pull-down to ground on the logic board. > > and uses a PNP transistor to switch it up to 12V. This pin does not work > > as an active low pin (i.e. pulling something to ground), only as an active > > high (that is dragging something up to +12v). If you want an active high > > output to drive a reed relay which has the other side of the coil to > > ground, this is your pin (but don't forget to check that the backwards > > diode is present on the coil pins). > > > > Bill Hurlock > > _______________________________________________ > App_rpt-users mailing list > App_rpt-users@ohnosec.org > http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users _______________________________________________ App_rpt-users mailing list App_rpt-users@ohnosec.org http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users _______________________________________________ App_rpt-users mailing list App_rpt-users@ohnosec.org http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users
lol. -- Bryan Sent from my iPhone 5...small keyboard, big fingers...please forgive misspellings... On May 10, 2013, at 17:49, Kirk Just Kirk <wb6egr@gmail.com> wrote:
Be nice! One remote still has a tall green can in it (Automatic Electric) DIAL 4 for UHF please.......
On Fri, May 10, 2013 at 11:44 AM, Bryan D. Boyle <bdboyle@bdboyle.com> wrote:
or even electromechanical...:) Strowger switches arestill useful devices, even if outdated...;)
-- Bryan Sent from my iPhone 5...small keyboard, big fingers...please forgive misspellings...
On May 10, 2013, at 17:31, Jim Duuuude <telesistant@hotmail.com> wrote:
Just a suggestion in general:
We are ham radio operators. By definition, we have, at least, a certain basic knowledge of electronics (as is required to pass our test).
If two devices are somehow electrically incompatible with each other, use your knowledge of electronics to build a simple circuit to interface them together. Converting from one set of "levels" to another is REALLY not that difficult.
That's why we are what we are, and do what we do.
Jim WB6NIL
P.S. Or, you can use pin 8 *LIKE EVERY ONE ELSE DOES*!!
From: n5zua@earthlink.net To: app_rpt-users@ohnosec.org Date: Fri, 10 May 2013 16:14:00 -0500 Subject: Re: [App_rpt-users] GM300
<http://www.batlabs.com/images/gmacc8.gif>
Gotcha. Not sure if you mentioned if yours was a 16 channel or not. If an 8 channel, the above link lists pin 4 as a spare, and instructs that pin 8 should be used for COR active low. Since you mentioned getting voltage out of pin 4, I'm assuming yours is a 16 channel radio. Folks with an 8 channel model would not have the option you are using.
N5ZUA
----- Original Message ----- From: "Bill Hurlock" <bill.hurlock@cpcomms.com> To: <app_rpt-users@ohnosec.org> Sent: Friday, May 10, 2013 3:54 PM Subject: Re: [App_rpt-users] App_rpt-users Digest, Vol 51, Issue 9
Here is a clip about PIN 4 in the Accessory plug of a GM300.
4 Programmable Output Only This is a radio output port. It is an open collector output which saturates to A+ supply when active. It is normally used to drive an external relay or sense lead. It duplicates the function of J3-3 of the five pin logic board. When active it can source a maximum current of 250 mA. The pin has a 10 K ohm resistor pull-down to ground on the logic board. and uses a PNP transistor to switch it up to 12V. This pin does not work as an active low pin (i.e. pulling something to ground), only as an active high (that is dragging something up to +12v). If you want an active high output to drive a reed relay which has the other side of the coil to ground, this is your pin (but don't forget to check that the backwards diode is present on the coil pins).
Bill Hurlock
_______________________________________________ App_rpt-users mailing list App_rpt-users@ohnosec.org http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users
App_rpt-users mailing list App_rpt-users@ohnosec.org http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users
_______________________________________________ App_rpt-users mailing list App_rpt-users@ohnosec.org http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users
Let me explain...the 4049 and 4050 are CMOS "Buffer" chips..one inverts..the other doesn't. WHY THIS chip? VERY few CMOS device will allow you to pull a input above the supply rail voltage without literally blowing the top off the chip.... Stock up now.. On Fri, May 10, 2013 at 11:31 AM, Jim Duuuude <telesistant@hotmail.com>wrote:
Just a suggestion in general:
We are ham radio operators. By definition, we have, at least, a certain basic knowledge of electronics (as is required to pass our test).
If two devices are somehow electrically incompatible with each other, use your knowledge of electronics to build a simple circuit to interface them together. Converting from one set of "levels" to another is REALLY not that difficult.
That's why we are what we are, and do what we do.
Jim WB6NIL
P.S. Or, you can use pin 8 *LIKE EVERY ONE ELSE DOES*!!
From: n5zua@earthlink.net To: app_rpt-users@ohnosec.org Date: Fri, 10 May 2013 16:14:00 -0500 Subject: Re: [App_rpt-users] GM300
<http://www.batlabs.com/images/gmacc8.gif>
Gotcha. Not sure if you mentioned if yours was a 16 channel or not. If
an 8
channel, the above link lists pin 4 as a spare, and instructs that pin 8 should be used for COR active low. Since you mentioned getting voltage out of pin 4, I'm assuming yours is a 16 channel radio. Folks with an 8 channel model would not have the option you are using.
N5ZUA
----- Original Message ----- From: "Bill Hurlock" <bill.hurlock@cpcomms.com> To: <app_rpt-users@ohnosec.org> Sent: Friday, May 10, 2013 3:54 PM Subject: Re: [App_rpt-users] App_rpt-users Digest, Vol 51, Issue 9
Here is a clip about PIN 4 in the Accessory plug of a GM300.
4 Programmable Output Only This is a radio output port. It is an open collector output which saturates to A+ supply when active. It is normally used to drive an external relay or sense lead. It duplicates the function of J3-3 of the five pin logic board. When active it can source a maximum current of 250 mA. The pin has a 10 K ohm resistor pull-down to ground on the logic board. and uses a PNP transistor to switch it up to 12V. This pin does not work as an active low pin (i.e. pulling something to ground), only as an active high (that is dragging something up to +12v). If you want an active high output to drive a reed relay which has the other side of the coil to ground, this is your pin (but don't forget to check that the backwards diode is present on the coil pins).
Bill Hurlock
_______________________________________________ App_rpt-users mailing list App_rpt-users@ohnosec.org http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users
_______________________________________________ App_rpt-users mailing list App_rpt-users@ohnosec.org http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users
I rigged a solenoid connected to a knife switch and all is well. Just that banging noise when someone keys up on the channel. Bill Hurlock From: Jim Duuuude [mailto:telesistant@hotmail.com] Sent: Friday, May 10, 2013 5:32 PM To: Steve Agee; app_rpt mailing list Subject: Re: [App_rpt-users] GM300 Just a suggestion in general: We are ham radio operators. By definition, we have, at least, a certain basic knowledge of electronics (as is required to pass our test). If two devices are somehow electrically incompatible with each other, use your knowledge of electronics to build a simple circuit to interface them together. Converting from one set of "levels" to another is REALLY not that difficult. That's why we are what we are, and do what we do. Jim WB6NIL P.S. Or, you can use pin 8 *LIKE EVERY ONE ELSE DOES*!!
From: n5zua@earthlink.net<mailto:n5zua@earthlink.net> To: app_rpt-users@ohnosec.org<mailto:app_rpt-users@ohnosec.org> Date: Fri, 10 May 2013 16:14:00 -0500 Subject: Re: [App_rpt-users] GM300
<http://www.batlabs.com/images/gmacc8.gif>
Gotcha. Not sure if you mentioned if yours was a 16 channel or not. If an 8 channel, the above link lists pin 4 as a spare, and instructs that pin 8 should be used for COR active low. Since you mentioned getting voltage out of pin 4, I'm assuming yours is a 16 channel radio. Folks with an 8 channel model would not have the option you are using.
N5ZUA
----- Original Message ----- From: "Bill Hurlock" <bill.hurlock@cpcomms.com<mailto:bill.hurlock@cpcomms.com>> To: <app_rpt-users@ohnosec.org<mailto:app_rpt-users@ohnosec.org>> Sent: Friday, May 10, 2013 3:54 PM Subject: Re: [App_rpt-users] App_rpt-users Digest, Vol 51, Issue 9
Here is a clip about PIN 4 in the Accessory plug of a GM300.
4 Programmable Output Only This is a radio output port. It is an open collector output which saturates to A+ supply when active. It is normally used to drive an external relay or sense lead. It duplicates the function of J3-3 of the five pin logic board. When active it can source a maximum current of 250 mA. The pin has a 10 K ohm resistor pull-down to ground on the logic board. and uses a PNP transistor to switch it up to 12V. This pin does not work as an active low pin (i.e. pulling something to ground), only as an active high (that is dragging something up to +12v). If you want an active high output to drive a reed relay which has the other side of the coil to ground, this is your pin (but don't forget to check that the backwards diode is present on the coil pins).
Bill Hurlock
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participants (6)
-
Bill Hurlock -
Bryan D. Boyle -
George Csahanin -
Jim Duuuude -
Kirk Just Kirk -
Steve Agee