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I replaced my 857 with a 891 same setup.?? But when I transmit above 5 watts, the radio shuts off and back on again.??? I put in two chokes on the power lead and it didn’t make any different.?? ? You guy got any ideas? ? 73, Don N1EDF ?
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Power supply, power connection
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On Nov 12, 2022, at 2:58 PM, Don Eklund <n1edf@...> wrote: ? I replaced my 857 with a 891 same setup.?? But when I transmit above 5 watts, the radio shuts off and back on again.??? I put in two chokes on the power lead and it didn’t make any different.?? ? You guy got any ideas? ? 73, Don N1EDF ?
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I thought of that but I am use 45 amp power poles??? ? ?
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From: [email protected] < [email protected]> On Behalf Of Jack W4GRJ Sent: Saturday, November 12, 2022 3:16 PM To: [email protected]Subject: Re: [FT-857] FT857D replaced with a 891 ? Power supply, power connection
On Nov 12, 2022, at 2:58 PM, Don Eklund <n1edf@...> wrote:
? I replaced my 857 with a 891 same setup.?? But when I transmit above 5 watts, the radio shuts off and back on again.??? I put in two chokes on the power lead and it didn’t make any different.?? ? You guy got any ideas? ? 73, Don N1EDF ?
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monitor power supply voltage when radio turns off or try a different power supply or battery….eliminate power source as problem before suspecting radio Jack
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On Nov 12, 2022, at 3:47 PM, Don Eklund <n1edf@...> wrote: ? I thought of that but I am use 45 amp power poles??? ? ? ? Power supply, power connection
On Nov 12, 2022, at 2:58 PM, Don Eklund <n1edf@...> wrote:
? I replaced my 857 with a 891 same setup.?? But when I transmit above 5 watts, the radio shuts off and back on again.??? I put in two chokes on the power lead and it didn’t make any different.?? ? You guy got any ideas? ? 73, Don N1EDF ?
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Are you using new unite or are these used 2nd units? Maybe you have bad transceivers.
On Saturday, November 12, 2022 at 02:51:01 PM CST, Jack W4GRJ <w4grj@...> wrote:
monitor power supply voltage when radio turns off or try a different power supply or battery….eliminate power source as problem before suspecting radio Jack
On Nov 12, 2022, at 3:47 PM, Don Eklund <n1edf@...> wrote: ? I thought of that but I am use 45 amp power poles??? ? ? ? Power supply, power connection
On Nov 12, 2022, at 2:58 PM, Don Eklund <n1edf@...> wrote:
? I replaced my 857 with a 891 same setup.?? But when I transmit above 5 watts, the radio shuts off and back on again.??? I put in two chokes on the power lead and it didn’t make any different.?? ? You guy got any ideas? ? 73, Don N1EDF ?
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The voltage is 13.8 in my truck.??? I willtry replacing the power poles again.???? It draws 23 amps the same the 857 which does not have this issue.? Thanks ? ? ?
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From: [email protected] < [email protected]> On Behalf Of Jack W4GRJ Sent: Saturday, November 12, 2022 3:51 PM To: [email protected]Subject: Re: [FT-857] FT857D replaced with a 891 ? monitor power supply voltage when radio turns off or try a different power supply or battery….eliminate power source as problem before suspecting radio W4GRJ
On Nov 12, 2022, at 3:47 PM, Don Eklund <n1edf@...> wrote:
? I thought of that but I am use 45 amp power poles??? ? ? ? Power supply, power connection
On Nov 12, 2022, at 2:58 PM, Don Eklund <n1edf@...> wrote:
? I replaced my 857 with a 891 same setup.?? But when I transmit above 5 watts, the radio shuts off and back on again.??? I put in two chokes on the power lead and it didn’t make any different.?? ? You guy got any ideas? ? 73, Don N1EDF ?
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From: [email protected] < [email protected]> On Behalf Of Richard Schnedorf via groups.io Sent: Saturday, November 12, 2022 3:57 PM To: [email protected]Subject: Re: [FT-857] FT857D replaced with a 891 ? Are you using new unite or are these used 2nd units? Maybe you have bad transceivers. On Saturday, November 12, 2022 at 02:51:01 PM CST, Jack W4GRJ <w4grj@...> wrote: monitor power supply voltage when radio turns off or try a different power supply or battery….eliminate power source as problem before suspecting radio W4GRJ
On Nov 12, 2022, at 3:47 PM, Don Eklund <n1edf@...> wrote:
I thought of that but I am use 45 amp power poles??? ? ? ? Power supply, power connection
On Nov 12, 2022, at 2:58 PM, Don Eklund <n1edf@...> wrote:
? I replaced my 857 with a 891 same setup.?? But when I transmit above 5 watts, the radio shuts off and back on again.??? I put in two chokes on the power lead and it didn’t make any different.?? ? You guy got any ideas? ? 73, Don N1EDF ?
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Try transmitting at lower power and see if it has any problems. If it doesn't then check the voltage at the DC connector going into the radio and make sure you are getting excessive Voltage drop under load. Your symptoms matches what my FT950 which is only rate at -10% (compared to the -15% your rated for) does when I exceed 40W on battery.
Leonard K. Pennock
AD7AS
Those who walk bravely through life, unafraid of loss or failure,
find that they very rarely lose or fail.
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On 11/12/22 14:22, Don Eklund wrote: The voltage is 13.8 in my truck.??? I willtry replacing the power poles again.???? It draws 23 amps the same the 857 which does not have this issue.
Thanks
*From:* [email protected] <[email protected]> *On Behalf Of *Jack W4GRJ
*Sent:* Saturday, November 12, 2022 3:51 PM
*To:* [email protected]
*Subject:* Re: [FT-857] FT857D replaced with a 891
monitor power supply voltage when radio turns off or try a different power supply or battery….eliminate power source as problem before suspecting radio
Jack
W4GRJ
><))):>
On Nov 12, 2022, at 3:47 PM, Don Eklund <n1edf@... <mailto:n1edf@...>> wrote:
?
I thought of that but I am use 45 amp power poles
*From:* [email protected] <mailto:[email protected]> <[email protected] <mailto:[email protected]>> *On Behalf Of *Jack W4GRJ
*Sent:* Saturday, November 12, 2022 3:16 PM
*To:* [email protected] <mailto:[email protected]>
*Subject:* Re: [FT-857] FT857D replaced with a 891
Power supply, power connection
On Nov 12, 2022, at 2:58 PM, Don Eklund <n1edf@... <mailto:n1edf@...>> wrote:
?
I replaced my 857 with a 891 same setup.?? But when I transmit above 5 watts, the radio shuts off and back on again.??? I put in two chokes on the power lead and it didn’t make any different.
You guy got any ideas?
73, Don
N1EDF
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Most likely not power pole issue
Sent from my T-Mobile 5G Device
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-------- Original message -------- From: Don Eklund <n1edf@...> Date: 11/12/22 4:22 PM (GMT-05:00) Subject: Re: [FT-857] FT857D replaced with a 891
The voltage is 13.8 in my truck.??? I willtry replacing the power poles again.???? It draws 23 amps the same the 857 which does not have this issue.? Thanks ? ? ? ? monitor power supply voltage when radio turns off or try a different power supply or battery….eliminate power source as problem before suspecting radio W4GRJ
On Nov 12, 2022, at 3:47 PM, Don Eklund <n1edf@...> wrote:
? I thought of that but I am use 45 amp power poles??? ? ? ? Power supply, power connection
On Nov 12, 2022, at 2:58 PM, Don Eklund <n1edf@...> wrote:
? I replaced my 857 with a 891 same setup.?? But when I transmit above 5 watts, the radio shuts off and back on again.??? I put in two chokes on the power lead and it didn’t make any different.?? ? You guy got any ideas? ? 73, Don N1EDF ?
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I had a similar issue with mine turned out to be a bad fuse connection replaced the holder and all good
?
Andy
2E0OLN
?
Sent from for Windows
?
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From: Jack W4GRJ
Sent: 12 November 2022 20:51
To: [email protected]
Subject: Re: [FT-857] FT857D replaced with a 891
?
monitor power supply voltage when radio turns off or try a different power supply or battery….eliminate power source as problem before suspecting radio
Jack
W4GRJ
><))):>
On Nov 12, 2022, at 3:47 PM, Don Eklund <n1edf@...> wrote:
?
I thought of that but I am use 45 amp power poles???
?
?
?
Power supply, power connection
On Nov 12, 2022, at 2:58 PM, Don Eklund <n1edf@...> wrote:
?
I replaced my 857 with a 891 same setup.?? But when I transmit above 5 watts, the radio shuts off and back on again.??? I put in two chokes on the power lead and it didn’t make any different.??
?
You guy got any ideas?
?
73, Don
N1EDF
?
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Had a bad fuse connection in 819 power cable, causing similar issues?here
I had a similar issue with mine turned out to be a bad fuse connection replaced the holder and all good
?
Andy
2E0OLN
?
Sent from for Windows
?
?
monitor power supply voltage when radio turns off or try a different power supply or battery….eliminate power source as problem before suspecting radio
Jack
W4GRJ
><))):>
On Nov 12, 2022, at 3:47 PM, Don Eklund < n1edf@...> wrote:
?
I thought of that but I am use 45 amp power poles???
?
?
?
Power supply, power connection
On Nov 12, 2022, at 2:58 PM, Don Eklund <n1edf@...> wrote:
?
I replaced my 857 with a 891 same setup.?? But when I transmit above 5 watts, the radio shuts off and back on again.??? I put in two chokes on the power lead and it didn’t make any different.??
?
You guy got any ideas?
?
73, Don
N1EDF
?
-- Anthony Luscre
K8ZT Ohio Section Section Youth Coordinator & Education Outreach ARRL - The National Association For Amateur Radio? ?
The Web Resource Hoarder-
K8ZT Radio Website-
Amateur Radio Resources for Students/Youth -
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Don,?
This is a classical low voltage symptom. Verify voltage at the rig with key down.
Start with the power supply connection and work you way back to the rig.? Remove in line fuses, don't just look at the fuses, remove and verify no corrosion on either end (emory paper). As for power poles, if these was assembled by soldering the electrical contacts to the feed wire then the tensile strength likely has been destroyed, hence poor contact.? PPs are designed to be crimped by crimper specific to the PP - NOT soldered.?
Regards, Phil / K4PO?
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Definitely check and reseat your fuse(s)? - or replace them. Had the same problem both in the shack and the truck. Fuses oxidate over time causing obvious problems,
Howard, WZ4K
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I found the issue.?? The positive side the power pole was not locked all the way in.??? I push it in and all is good. ? ? Thank you for all your idea’s. ? 73 Don N1EDF ? ?
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From: [email protected] < [email protected]> On Behalf Of bogbeast@... Sent: Saturday, November 12, 2022 3:53 PM To: [email protected]Subject: Re: [FT-857] FT857D replaced with a 891 ? I had a similar issue with mine turned out to be a bad fuse connection replaced the holder and all good ? Andy 2E0OLN ? Sent from for Windows ? ? monitor power supply voltage when radio turns off or try a different power supply or battery….eliminate power source as problem before suspecting radio W4GRJ
On Nov 12, 2022, at 3:47 PM, Don Eklund <n1edf@...> wrote:
? I thought of that but I am use 45 amp power poles??? ? ? ? Power supply, power connection
On Nov 12, 2022, at 2:58 PM, Don Eklund <n1edf@...> wrote:
? I replaced my 857 with a 891 same setup.?? But when I transmit above 5 watts, the radio shuts off and back on again.??? I put in two chokes on the power lead and it didn’t make any different.?? ? You guy got any ideas? ? 73, Don N1EDF ?
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Good deal…as I said previously…usually power source/connection issue 73’ Jack W4GRJ
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On Nov 13, 2022, at 9:41 AM, Don Eklund <n1edf@...> wrote: ? I found the issue.?? The positive side the power pole was not locked all the way in.??? I push it in and all is good. ? ? Thank you for all your idea’s. ? 73 Don N1EDF ? ? ? I had a similar issue with mine turned out to be a bad fuse connection replaced the holder and all good ? Andy 2E0OLN ? Sent from for Windows ? ? monitor power supply voltage when radio turns off or try a different power supply or battery….eliminate power source as problem before suspecting radio W4GRJ
On Nov 12, 2022, at 3:47 PM, Don Eklund <n1edf@...> wrote:
? I thought of that but I am use 45 amp power poles??? ? ? ? Power supply, power connection
On Nov 12, 2022, at 2:58 PM, Don Eklund <n1edf@...> wrote:
? I replaced my 857 with a 891 same setup.?? But when I transmit above 5 watts, the radio shuts off and back on again.??? I put in two chokes on the power lead and it didn’t make any different.?? ? You guy got any ideas? ? 73, Don N1EDF ?
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Permanently bonded powerpole connectors are your friend?
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From: Ben N0WER <mailto:cq@...?subject=Re:%20FT857D%20replaced%20with%20a%20891>
Date: Sun, 13 Nov 2022 18:33:00 EST
Permanently bonded powerpole connectors are your friend
Ben That would not have helped him in this case. What I believe he is saying is that the crimp on conductor tongue was not pushed in far enough for the tip to be beyond the end of it's lift spring. With the tongue not locked in place the tongue would move back when the other connectors tongue struck it instead of them sliding up over each other and providing a large area of contact. -- Tom Horne W3TDH
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Yes that was the issue. The positive was not locked in to the spring clip.
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-----Original Message----- From: [email protected] < [email protected]> On Behalf Of Tom Horne Sent: Monday, November 14, 2022 7:41 AM To: [email protected]Subject: Re: [FT-857] FT857D replaced with a 891 From: Ben N0WER
<mailto:cq@...?subject=Re:%20FT857D%20replaced%20with%20a%20891>
Date: Sun, 13 Nov 2022 18:33:00 EST
Permanently bonded powerpole connectors are your friend
Ben That would not have helped him in this case. What I believe he is saying is that the crimp on conductor tongue was not pushed in far enough for the tip to be beyond the end of it's lift spring. With the tongue not locked in place the tongue would move back when the other connectors tongue struck it instead of them sliding up over each other and providing a large area of contact. -- Tom Horne W3TDH
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Jack W4GRJ
Anthony Luscre
Tom Horne