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Lab599 Power Input

 

Hello,

I'm purchasing a Lab599 soon and in reading the manual (pg 10), it says "Use a power source or battery with a voltage of 9 to 15 volts and a current of at least 3 Amps." ... In the wiring diagram manual, it says to use 3A Max ...?

So my question is, is it at least 3 Amps or is 3 Amps max? I have a Samlex 1223 (23 Amp) and wondering if that would work for the radio as a power source??

Thanks!
Gary Priest (K8JOK)
 

I believe 3A max refers to the fuse. In any case, your Samlex will work fine!

73,

Gary?
K8JOK?

Sent from for iOS


On Wed, Nov 29, 2023 at 13:53, Anthony Hernandez <anthonyhernandez9@...> wrote:
Hello,

I'm purchasing a Lab599 soon and in reading the manual (pg 10), it says "Use a power source or battery with a voltage of 9 to 15 volts and a current of at least 3 Amps." ... In the wiring diagram manual, it says to use 3A Max ...?

So my question is, is it at least 3 Amps or is 3 Amps max? I have a Samlex 1223 (23 Amp) and wondering if that would work for the radio as a power source??

Thanks!

 

¿ªÔÆÌåÓý

The max a tx500 should draw is 3A at full output. If you limit the power supply to say 1A the radio will not output full power and may do stupid things like reboot because it doesn't have the power it needs to work correctly.
You shouldn't let it draw more than 3A because that likely means somethings wrong. EG you have a short.
A power supply makes some number of amps available but generally doesn't push those amps on to a device so a 23amp power supply or a battery that has a max discharge of 50amps are both fine as the tx500 will only pull 3amps, ASSUMING there is nothing wrong like a short.
You should have a fuse inline between the radio and the power supply however just in case something happens to cause a surge, burn the fuse, not the radio. A 3 amp fuse would be the right size, this lets 3amps in but no more, if you turn power down and the radio only needs 2amps (made up value) thats fine too.

hope that helps and 73
tim w3qp

From: [email protected] <[email protected]> on behalf of Gary Priest (K8JOK) via groups.io <k8jok@...>
Sent: Wednesday, November 29, 2023 3:03 PM
To: [email protected] <[email protected]>
Subject: Re: [Lab599] Lab599 Power Input
?
I believe 3A max refers to the fuse. In any case, your Samlex will work fine!

73,

Gary?
K8JOK?

Sent from for iOS


On Wed, Nov 29, 2023 at 13:53, Anthony Hernandez <anthonyhernandez9@...> wrote:
Hello,

I'm purchasing a Lab599 soon and in reading the manual (pg 10), it says "Use a power source or battery with a voltage of 9 to 15 volts and a current of at least 3 Amps." ... In the wiring diagram manual, it says to use 3A Max ...?

So my question is, is it at least 3 Amps or is 3 Amps max? I have a Samlex 1223 (23 Amp) and wondering if that would work for the radio as a power source??

Thanks!

 

Dovetailing off of what Tim said the TX-500 already comes with an inline 3A "T" style fuse on the positive red wire of the power cable.

David
K9AT

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