Batboard

I have spent a good few hours reading Batlabs, the Batboard archives and the Repeater Builder info. As a result , I think I have solved most of my problems

However , I would be grateful for some confirmation that I am correct in my thinking. Help with any one of the below questions (not necessarily ALL ) would be welcome:

Radio switches off after 2 seconds: This is because I am missing the accessory connector. I need to link pins 13 and 16 to enable the internal speaker and pins 4 (External alarm output) and pins 10 (ignition control) to get the radio to turn on.

Instead of linking Pin 4 and Pin 10 , I could connect Pin 10 to the +12v supply lead. Does the "official" GTX accessory connector link Pins 4 and 10 or is there usually a "fly lead" from Pin 10 which you wire to the +12V power harness?

The main question I have is the configuration of Pin 13. I am hoping that ALL GTX Mobiles usually always have Pin 13 configured for "Internal Speaker" (rather than "switched +12v" or "Ground") Is this usually the case , so that I don't need to worry about internally checking the configuration of Pin 13. If Pin 13 was configured for " Ground" , would I blow the audio amp if I connected Pin 13 to Pin 16 (Ext Spkr +)?

Wiring of RIB to Radio Programming cable: I need to use the Maxtrac/GM300 programming cable. My only issue here is that I have a UHF LCS2000 which does NOT use the Maxtrac/GM300 cable BUT the GM350/GM950 cable!! The Batlabs info for the LCS2000 is wrong, certainly for the UHF LCS2000. However , I checked out a Moto brochure and that indicated that the 800/900 MHz GTX and LCS2000 used the SAME programming cable(3080070N01). So maybe a UHF LCS2000 is different (but the radio looks identical!!). Or maybe the CORRECT cable is the GM350/GM950 cable but the Maxtrac/GM300 cable just happens to work with the GTX but not the LCS2000?

GTX manufactured in Nov 1997 : RSS version R02.00.01 is dated 24 July 1997. I guess I will need to use a later version of the RSS ie R04.00.00 dated 17 Feb 2000. However, can I used the GTX-LAB version which is dated 4 Dec 1996? ie if my GTX has previously been programmed with , say R03.03.00 (25 July 2000), will the GTX-LAB version dated 4 Dec 1996 work??

GTX squelch defeat: On my LCS2000 , you can disable CTCSS but you CANNOT defeat the carrier squelch to get "white noise". With a GTX , can the MON key be configured to get "white noise"?

Thanks very much.

g8tzl2004 wrote: Radio switches off after 2 seconds: This is because I am missing the accessory connector. I need to link pins 13 and 16 to enable the internal speaker and pins 4 (External alarm output) and pins 10 (ignition control) to get the radio to turn on.

Instead of linking Pin 4 and Pin 10 , I could connect Pin 10 to the +12v supply lead. Does the "official" GTX accessory connector link Pins 4 and 10 or is there usually a "fly lead" from Pin 10 which you wire to the +12V power harness?

The "official" GTX/LCS accessory connector has the fly lead from pin 10 to connect to +12V power.

g8tzl2004 wrote: The main question I have is the configuration of Pin 13. I am hoping that ALL GTX Mobiles usually always have Pin 13 configured for "Internal Speaker" (rather than "switched +12v" or "Ground") Is this usually the case , so that I don't need to worry about internally checking the configuration of Pin 13. If Pin 13 was configured for " Ground" , would I blow the audio amp if I connected Pin 13 to Pin 16 (Ext Spkr +)?

All GTX/LCS units from the factory have pin 13 set for internal speaker. Here in North America, at least. You would likely blow the amp if pin 13 happened to be configured for ground. Ensuring it doesn't measure a short to the chassis is a quick & easy way to confirm, if it's a concern.

g8tzl2004 wrote: Wiring of RIB to Radio Programming cable: I need to use the Maxtrac/GM300 programming cable. My only issue here is that I have a UHF LCS2000 which does NOT use the Maxtrac/GM300 cable BUT the GM350/GM950 cable!! The Batlabs info for the LCS2000 is wrong, certainly for the UHF LCS2000. However , I checked out a Moto brochure and that indicated that the 800/900 MHz GTX and LCS2000 used the SAME programming cable(3080070N01). So maybe a UHF LCS2000 is different (but the radio looks identical!!). Or maybe the CORRECT cable is the GM350/GM950 cable but the Maxtrac/GM300 cable just happens to work with the GTX but not the LCS2000?

The Maxtrac cable works for all GTX/LCS units manufactured for North America. The UHF/VHF units are only available overseas, so it's very possible they use a different cable.

g8tzl2004 wrote: GTX manufactured in Nov 1997 : RSS version R02.00.01 is dated 24 July 1997. I guess I will need to use a later version of the RSS ie R04.00.00 dated 17 Feb 2000. However, can I used the GTX-LAB version which is dated 4 Dec 1996? ie if my GTX has previously been programmed with , say R03.03.00 (25 July 2000), will the GTX-LAB version dated 4 Dec 1996 work??

It fully depends on what version RSS the unit was last programmed with, in regards to what version of "regular" RSS will work with it.

For the LAB RSS, you can blank the radio & re-initialize, but you would still require a codeplug that the LAB can read in order to do so. Most times, blanking with LAB and then re-initializing with a later 'regular' RSS is what's done.

g8tzl2004 wrote: GTX squelch defeat: On my LCS2000 , you can disable CTCSS but you CANNOT defeat the carrier squelch to get "white noise". With a GTX , can the MON key be configured to get "white noise"?

My thought is 'no', but I'm not sure on that one.

Todd

Many thanks Wavetar for the feedback.

Is it 100% safe to link Pins 4 and 10 rather than using a fly lead from Pin 10 to +12V? I also read that linking Pin 9 (Emergency alarm) and 10 also works?

I will now start to build a Maxtrac/GM300 lead. Is there any reason NOT to use version R04.00.00? For example, maybe Version R04.00.00 does not allow any shift key trick for out of band programming. I am also working on a M1225 which I want to program onto 145MHz and I need to use Version 3.1 because version 4 does NOT allow the shift key trick!

My GTX was manufactured in November 1997. As well as version R04.00.00 (dated 17 Feb 2000) , I also have version R02.00.02 BUT I can see no dated in the Readme file. Other than loading version R02.00.02 , do you know whether it was released before or after Nov 1997?

Thanks

g8tzl2004 wrote: Is it 100% safe to link Pins 4 and 10 rather than using a fly lead from Pin 10 to +12V? I also read that linking Pin 9 (Emergency alarm) and 10 also works?

Pin 10 requires constant 12V for the radio to remain on. It would appear pin 4 is normally high, so it would suffice for this. I wouldn't think pin 9 would work, as it would only be +5V. I've never used the pin 4-to-pin 10 jumper trick, so I can't speak to it's safety.

g8tzl2004 wrote: I will now start to build a Maxtrac/GM300 lead. Is there any reason NOT to use version R04.00.00? For example, maybe Version R04.00.00 does not allow any shift key trick for out of band programming. I am also working on a M1225 which I want to program onto 145MHz and I need to use Version 3.1 because version 4 does NOT allow the shift key trick!

The GTX software does not allow the shift key trick, regardless of version. At least, this is true for the 800MHz band here in North America.

g8tzl2004 wrote: My GTX was manufactured in November 1997. As well as version R04.00.00 (dated 17 Feb 2000) , I also have version R02.00.02 BUT I can see no dated in the Readme file. Other than loading version R02.00.02 , do you know whether it was released before or after Nov 1997?

Thanks

As I said before, the date of radio manufacture is not important...what's important is what was the last RSS version the radio was programmed with. If it was last programmed with 4.00.00, then it won't matter if it was manufactured in 1997...you'll need version 4.00.00 in order to read it.