Chattering or Flickering

Douglas Richards #115 Hello All Has anyone had either of these 2 symptoms on their 847? When powering up or occasionally during operation to chatter or flicker causing you to restart controller software. I have had it, now, several times. It sounds like relays trying to make contact. If this has happened, is there a fix? Thank you 73 Douglas VE3FFR
Brian Howie GM4DIJ All Messages By This Member #116 In message <[email protected]>, Douglas Richards <ve3ffr@...> writes Hello All Has anyone had either of these 2 symptoms on their 847? When powering up or occasionally during operation to chatter or flicker causing you to restart controller software. I have had it, now, several times. It sounds like relays trying to make contact. If this has happened, is there a fix? Thank you 73 Douglas VE3FFR Closest I've had was the in-line fuse overheating, corroding and making poor contact. Mine were the cartridge fuses, not the spade terminal ones which are a lot better. Brian GM4DIJ -- Brian Howie
Bill All Messages By This Member #117 Check your power supply connections. Loose connection are OK during receive, but during transmit, you will be a voltage drop resulting in all kinds of bad things happening including relay chatter. K2WH toggle quoted message Show quoted text -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Brian Howie GM4DIJ Sent: Saturday, August 15, 2020 11:31 AM To: [email protected] Subject: Re: [YaesuFT847] Chattering or Flickering In message <[email protected]>, Douglas Richards <ve3ffr@...> writes Hello All Has anyone had either of these 2 symptoms on their 847? When powering up or occasionally during operation to chatter or flicker causing you to restart controller software. I have had it, now, several times. It sounds like relays trying to make contact. If this has happened, is there a fix? Thank you 73 Douglas VE3FFR Closest I've had was the in-line fuse overheating, corroding and making poor contact. Mine were the cartridge fuses, not the spade terminal ones which are a lot better. Brian GM4DIJ -- Brian Howie -- Bill, K2WH
Michael Luft All Messages By This Member #118 Hi. Try to run the radio full power only with a dummy load, and measure the??voltage supply in Tx and Rx Modes.? Make sure the voltages?are within?specs. The 847 has an over voltage protection.? If you need I can send you the circuit?diagram of the power supply for further investigations. Mike ?4X1LM?? ??????? ???, 15 ????? 2020 ?-19:48 ??? ?Bill?? <?k2wh@...??>:? toggle quoted message Show quoted text Check your power supply connections.? Loose connection are OK during receive, but during transmit, you will be a voltage drop resulting in all kinds of bad things happening including relay chatter. K2WH -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Brian Howie GM4DIJ Sent: Saturday, August 15, 2020 11:31 AM To: [email protected] Subject: Re: [YaesuFT847] Chattering or Flickering In message <[email protected]>, Douglas Richards <ve3ffr@...> writes >Hello All >Has anyone had either of these 2 symptoms on their 847? >When powering up or occasionally during operation to chatter or flicker >causing you to restart controller software. >I have had it, now, several times. It sounds like relays trying to make >contact. >If this has happened, is there a fix? >Thank you >73 >Douglas VE3FFR Closest I've had was the in-line fuse overheating, corroding and making poor contact. Mine were the cartridge fuses, not the spade terminal ones which are a lot better. Brian GM4DIJ -- Brian Howie -- Bill, K2WH

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Chattering or Flickering