VX-4200 power off on transmit

[couger100101]

what would make the radio go into a power offf type deal when you key up for a repeater?

 

[kayn1n32008]

what would make the radio go into a power off type deal when you key up for a repeater?

voltage drop/not enough current available.

That is a shot in the dark, simply because you have not provided nearly enough information about how the radio is set-up.

-In a vehicle?
-Home station?
-If a home station, what kind of power supply(brand and model, along with current capacity both constant and ICS)
-What kind of antenna, how is it mounted, and have you verified it is properly tuned?

 

[couger100101]

voltage drop/not enough current available.

That is a shot in the dark, simply because you have not provided nearly enough information about how the radio is set-up.

-In a vehicle?
-Home station?
-If a home station, what kind of power supply(brand and model, along with current capacity both constant and ICS)
-What kind of antenna, how is it mounted, and have you verified it is properly tuned?

It is a home station at the moment. I am only using a 5 amp power supply which I know is not quite enough. I have a 10 amp power supply coming it is a pyramid. This will be used in my vehicle once I know everything is working. I have it setup for GM RS frequencies. The antenna is a dvj commercial UHF gmrs . I can use it on simplex direct channel to channel but duplex it cuts out

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[kayn1n32008]

It is a home station at the moment. I am only using a 5 amp power supply which I know is not quite enough. I have a 10 amp power supply coming it is a pyramid. This will be used in my vehicle once I know everything is working. I have it setup for GM RS frequencies. The antenna is a dvj commercial UHF gmrs . I can use it on simplex direct channel to channel but duplex it cuts out

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likely that the power supply is not sufficient to power the radio

 

[couger100101]

likely that the power supply is not sufficient to power the radio

That is what I am hoping my power supply should be in today

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[couger100101]

Ok so it seems to be on that channel/frequencies only. I key the mic and.it powers down until it release the mic. Any other repeater frequencies it seem to be fine.

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[couger100101]

Hey is what I have in the software.

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[couger100101]

Number 17/ granite 600 is the issue channel

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[couger100101]

Seems the power supply was the issue. Just wish I could access a repeater so I can test the radio. As soon as I get it in my truck I will try it out. Thanks for the help.

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[mmckenna]

5 amps isn't enough to power a 45 watt UHF radio. 10 watts is going to be a little light, also. The power supply is going to be working pretty hard at high power.

That channel may be impacted for a couple of reasons:
Higher SWR when transmitting at 467MHz could be reflecting power back to the radio and causing it.
The radio may not be as efficient on the higher transmit frequencies.
Usually, when aligning a radio, the power levels are set at various places along the spectrum where the radio will work. It might be slightly high around 467MHz. Adding a higher capacity power supply will address it.
If it's a used radio, someone may have monkeyed with the alignment settings, or they may have adjusted the high/medium/low RF power set points.

A DC ammeter would tell you how much current the radio is drawing.
An SWR meter would tell you if the SWR is too high.

Another thing I'll point out…
You have some of the GMRS interstitial channels programmed in at high power. That's outside what the GMRS license allows. Those should be set to run no more than 5 watts. From the factory, the radio is set to TX at 10 watts on low.
You've got all your channels set to narrow bandwidth. That's fine if that's what you want, but under GMRS rules, you can run the primary channels (462.xxx0 simplex and 467.xxx0 repeater inputs) at wide.

Other than that, looks good. Should be a good set up for your mobile if you have a good antenna. Make sure you run your power for the radio directly to the battery, too.

 

[couger100101]

5 amps isn't enough to power a 45 watt UHF radio. 10 watts is going to be a little light, also. The power supply is going to be working pretty hard at high power.

That channel may be impacted for a couple of reasons:
Higher SWR when transmitting at 467MHz could be reflecting power back to the radio and causing it.
The radio may not be as efficient on the higher transmit frequencies.
Usually, when aligning a radio, the power levels are set at various places along the spectrum where the radio will work. It might be slightly high around 467MHz. Adding a higher capacity power supply will address it.
If it's a used radio, someone may have monkeyed with the alignment settings, or they may have adjusted the high/medium/low RF power set points.

A DC ammeter would tell you how much current the radio is drawing.
An SWR meter would tell you if the SWR is too high.

Another thing I'll point out…
You have some of the GMRS interstitial channels programmed in at high power. That's outside what the GMRS license allows. Those should be set to run no more than 5 watts. From the factory, the radio is set to TX at 10 watts on low.
You've got all your channels set to narrow bandwidth. That's fine if that's what you want, but under GMRS rules, you can run the primary channels (462.xxx0 simplex and 467.xxx0 repeater inputs) at wide.

Other than that, looks good. Should be a good set up for your mobile if you have a good antenna. Make sure you run your power for the radio directly to the battery, too.

I will look at the power setting for the channels. I'm still unsure sure on the whole alignment thing. The power supply in running is 10amp continuous and 12 surge. This is a temporary situation for programming basically.
I have a separate fuse block just for accessories mounted in my truck direct to the battery already. O may message you for more information on the programming and such if you don't mind. I'm very new to these types of radios. I'm more singars and 77 prik kinda guy... Lol. Thanks.

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[mmckenna]

I will look at the power setting for the channels. I'm still unsure sure on the whole alignment thing.

Usually not a good idea to do anything with the alignment unless you have the right test equipment. I've never done a Vertex, but I've messed with a few Motorola and Kenwoods, and it takes some practice, not to mention the right test gear.

The power supply in running is 10amp continuous and 12 surge. This is a temporary situation for programming basically.

That should be sufficient. For programming it'll be fine.

I have a separate fuse block just for accessories mounted in my truck direct to the battery already.

Good deal, that's the way I do mine. If it's more than one radio, I run #6 with either a 60 amp fuse or 60 amp breaker near the battery. #6 all the way back to the cab, then a fused distribution block. Really makes it easier in the long run, especially if you swap out radios, add radio, etc. If you will never be transmitting with more than one radio at a time, you can scale it back.

O may message you for more information on the programming and such if you don't mind. I'm very new to these types of radios. I'm more singars and 77 prik kinda guy... Lol. Thanks.

Sure, no problem.