Little radio, big problem

Equipment Radios & Power
1

Yesterday I took my new tiny 5w (tr)uSDX ransceiver to a summit for the first time. It was bought as a new pre-built unit and I hoped that such a small radio would help to lighten my rucksack for future ad-hoc CW activations on days out.

I tested it thoroughly in the shack before setting out and RBN results were very encouraging across Europe.

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I didn’t get the chance to use it properly on the summit for various reasons but on returning to the shack it is now stuck on a “Check PTT/key” screen and nothing seems to persuade it to do anything different.

Any thoughts from anyone on rectifying this issue?(other than binning it and reverting to my KX2…!)

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Thank you. 73 Mike :grinning:

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Is the PTT button stuck “On” (not necessarily physically)? Maybe you can check for continuity across the contacts to see if the switch is activated without you pushing the button.

Chris

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Thanks Chris. That’s now checked but apparently not the source of the problem. Appreciate your input. Onward…… 73 Mike. :grinning:

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Try to put CW key in and switch ON, apparently this might cure the problem. Check truSDX FORUM on DL2MAN.de for more info.

73 Marek

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Thanks for the suggestion Marek. Just tried that but still no luck, unfortunately. Will check the Forum now. 73 Mike :grinning:

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Problem solved. Holding in the Enter key while switching on the power supply cleared the issue - which is not uncommon apparently - and it now seems to be working well. It’s a great wee radio for QRP fun so delighted to have it back online.

Thanks to those who suggested solutions. 73 Mike :grinning:

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