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  1. FT-857
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857D DC power cable problem

 

To day I had a problem with DC power cable of? my 857D. One of the fuse? gave problem with rig intermittently switching off.? When I checked the fuse unit got hot hot and the holder became loose. The holder is damaged and I cannot reuse the holder.?

As I have fuse in the power supply will it be OK if I bypass and give direct connection to the power supply??

Request comment?

VU2TE
Unni
 

Always best to have fuses in line.? Best to Install new fuse holders or get a new cable.

Sent from AOL Mobile Mail



On Monday, January 4, 2021 Easwaran Unni Tharakkal VU2TE <[email protected]> wrote:

To day I had a problem with DC power cable of? my 857D. One of the fuse? gave problem with rig intermittently switching off.? When I checked the fuse unit got hot hot and the holder became loose. The holder is damaged and I cannot reuse the holder.?

As I have fuse in the power supply will it be OK if I bypass and give direct connection to the power supply??

Request comment?

VU2TE
Unni

 

Thank you Cliff.? will go a new cable . I will connect direct till I get a new cable as there is no spare rig

Unni
VU2TE

On Tue, Jan 5, 2021 at 8:34 AM Cliff E via <cjengle23=[email protected]> wrote:

Always best to have fuses in line.? Best to Install new fuse holders or get a new cable.

Sent from AOL Mobile Mail

On Monday, January 4, 2021 Easwaran Unni Tharakkal VU2TE <[email protected]> wrote:
To day I had a problem with DC power cable of? my 857D. One of the fuse? gave problem with rig intermittently switching off.? When I checked the fuse unit got hot hot and the holder became loose. The holder is damaged and I cannot reuse the holder.?

As I have fuse in the power supply will it be OK if I bypass and give direct connection to the power supply??

Request comment?

VU2TE
Unni

 

For many years I have never fused my radios with the exception of those installed in a vehicle which I fit with a fuse in both positive and negative lines.

My radios are normally used in the bush (forest) and have a 1M cable to a lead acid battery, a fuse is pointless in this situation.

However if you run your radio inside a house and especially if its wiring is concealed then one fuse is sensible.
 

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Regards,

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Tony

VA7TF VE&ACF

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From: James Clark
Sent: January 5, 2021 12:10 PM
To: [email protected]
Subject: Re: [FT-857] 857D DC power cable problem

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For many years I have never fused my radios with the exception of those installed in a vehicle which I fit with a fuse in both positive and negative lines.

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My radios are normally used in the bush (forest) and have a 1M cable to a lead acid battery, a fuse is pointless in this situation.

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However if you run your radio inside a house and especially if its wiring is concealed then one fuse is sensible.

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Virus-free.

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+++++++++++++++

Tony
VA7TF? VE7ACF
 

Thank you James for the tips

73s GD GL HNY

VU2TE
Unni

On Wed, Jan 6, 2021 at 1:40 AM James Clark <James_Clark@...> wrote:
For many years I have never fused my radios with the exception of those installed in a vehicle which I fit with a fuse in both positive and negative lines.

My radios are normally used in the bush (forest) and have a 1M cable to a lead acid battery, a fuse is pointless in this situation.

However if you run your radio inside a house and especially if its wiring is concealed then one fuse is sensible.
 

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Whether to fuse the line when using a fused power supply it depends on where the power supply fuse is before or after the transformer.? Fuses are intended to prevent the wiring from becoming a fire starter.?? In any case, with mobile installations it is necessary to fuse both negative and positive leads as near as possible to the power source.? For fixed station a fuse is not needed on the negative (minus) lead, but certainly won¡¯t do harm if present as are most OEM power cords.? ??Regards, Phil / K4PO

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Thank you Phill. for the tips.

73s regards HNY

Unni
VU2TE


On Wed, Jan 6, 2021 at 7:40 AM Philip Salley <pcsalley@...> wrote:

Whether to fuse the line when using a fused power supply it depends on where the power supply fuse is before or after the transformer.? Fuses are intended to prevent the wiring from becoming a fire starter.?? In any case, with mobile installations it is necessary to fuse both negative and positive leads as near as possible to the power source.? For fixed station a fuse is not needed on the negative (minus) lead, but certainly won¡¯t do harm if present as are most OEM power cords.? ??Regards, Phil / K4PO

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