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Messages - db2gm

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1
General discussion forum / Re: TS480 noise during TX
« on: 2015-07-10, 23:26:30 »
Thank you for the additional good recommendation , I am already using a separate 12V power supply for the Remoterig itself and for the TS480 transceiver.

So this is already implemented.#
vy 73 de Michael DB2GM

2
General discussion forum / Re: TS480 noise during TX
« on: 2015-07-10, 12:15:07 »
Ok Michael
I will do so and come back to you
Thanks for the advice
vy 73 de Michael DB2GM

3
General discussion forum / TS480 noise during TX
« on: 2015-07-09, 22:28:09 »
Hello
I have setuo a remote rig link between my home and my company site where I have installed TS480 transceiver with remote rig and two antennas.
At home I just have the TS480 front panel and the remote rig.

Everything works perfect win receive mode with the TS480, I can hear a lot of stations.
Buit if I switch to transmit , so use PTT and microphone to transmit, then I get full transmission of noise not reacting on my voice for the output power., I can adjust with the MIC level function the output power from low to high but it is just noise modulating the TS480.

I have rad in the forum that others also had that problem and that earthing was sometimes a solution.
I have put the TS480 transceiver and the remote rig unit on a aluminum packet which is connected to ears and both TS80 and remotrig unit is also connected via special cable sot the earthing point on the aluminum plate.
I have also connect ferrit cores both at microphone cable and control cable between the remote rig unit and the TS480, both cables are less than 10cm short and as I said protected by ferret cores.

So I think I have already done a lot but there was no improvement on the TX side. It is obviously noise which comes into the TS480 and modulates the unit in that set-up
I have tested the direct connection between TS480 transceiver and TS480 control unit and then it works correctly, modulation is then ok.

I appreciate any new idea or advice how to cure that problem and and solve it.
Thank you very much for your assistance and help
vy 73 de Michael DB2GM

Can somebody help me with some advice how to cure that problem.

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