GP300 Cable Question
Moderator: Queue Moderator
GP300 Cable Question
I made a cable for the GP300, and it uses a 9volt battery to power the radio and alligator clips for power/data connections. I havn't tried it and I'm wondering if anyone else has used this type of cable.
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HLA
- Posts: 2334
- Joined: Mon Jul 11, 2005 8:15 pm
- What radios do you own?: HT1550's, X9000's, CDM1550's
i use it all the time for 300's, 350's, and plenty of others, works perfect.
HLA
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STOP ASKING ME FOR SOFTWARE OR FIRMWARE, I JUST FORWARD ALL OF THE REQUESTS TO THE MODERATORS
I never check PM's so don't bother, just email me.
I won't reply to a hotmail, gmail, aol or any other generic free address, if you want me to reply use a real address.
STOP ASKING ME FOR SOFTWARE OR FIRMWARE, I JUST FORWARD ALL OF THE REQUESTS TO THE MODERATORS
It's a down and dirty way to program those radios, but it does work.
One other 'option' you can use, is to solder a small piece of a spade lug onto the programming pad and use a female spade lug to attach the programmer to that.
It will give you a fairly solid connection and it also frees up one hand to enter data also.
I've also used an old radio frame and soldered the power leads to that, so I can use the radio's battery to power the programmed radio and then properly tune/align the radio as well.
If you are using the 9V battery to only program, it works, but a steady current source is required for alignment as you have to transmit during the setting of the alignment softpots, then program those settings as well.
The 9V battery 'trick' will give you read errors if you accidentally hit the transmit button during an alignment, and then the RSS locks up and flashed the error.
One other 'option' you can use, is to solder a small piece of a spade lug onto the programming pad and use a female spade lug to attach the programmer to that.
It will give you a fairly solid connection and it also frees up one hand to enter data also.
I've also used an old radio frame and soldered the power leads to that, so I can use the radio's battery to power the programmed radio and then properly tune/align the radio as well.
If you are using the 9V battery to only program, it works, but a steady current source is required for alignment as you have to transmit during the setting of the alignment softpots, then program those settings as well.
The 9V battery 'trick' will give you read errors if you accidentally hit the transmit button during an alignment, and then the RSS locks up and flashed the error.
I use it all the time, I built one just as you're describing.
I only messed up a radio once with it, my mistake. It was an SP50. It's a little hard to hold the contact on the side of the radio and use the keyboard at the same time. When programming any of these and you're not too comfortable, I would recommend having someone help you run the computer or hold the clips while programming.
Just a thought....
I only messed up a radio once with it, my mistake. It was an SP50. It's a little hard to hold the contact on the side of the radio and use the keyboard at the same time. When programming any of these and you're not too comfortable, I would recommend having someone help you run the computer or hold the clips while programming.
Just a thought....