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Is there a reason why people think it’s RF pickup on the coax line and not on the audio line? Wouldn’t the audio line be a more direct and damaging route to the chip? My thought is that feedback

Where is the best location to place the ferrite beads and the best place to buy them??? Ammed Ismail KN6STX Sent: Monday, January 8, 2024 5:38 PM To: [email protected] Subject: Re: [Lab599] Audio Chip?

Scott Thanks for the info. I seldom run on 15m and higher. Nice to have a bit more info. Maybe it is time to put on some ferrite beads. Larry n0sa

@Larry N0SA, I also only work CW and had headphones plugged into the accessories audio cable that comes with the rig - not the speaker mic as it's headphone output plug is mono (the

Pete, ?So true but no other list for portable rigs has many notes of this type of audio failure, that’s how we know the failure rate of the audio chip is much higher with the lab599 than other

I would be curious as to the output power level at the time of failure. I only use 2 watts in the TUNE position and run 10 watts cw output. I only work CW and never connect the mic./speaker combo. It

The OPs comment reminds me of when I worked on the flight deck of the USS Forrestal in 1971 we wore hearing protectors, actually David Clark headsets to protect our ears also if you were smart you

Could have been a small error reported and quietly fixed. Same happened a few releases back with spelling errors in the menu.

There seems a new Firmware available ( https://lab599.com/downloads ) but the changelog was not changed since the previous v1.20.02. But the file differs from the previous one. 73 Stephan

Thomas,.other rigs have quite common failures, for example: finals on then earlier 817 caused just by batteries being left in the rig. IC7300 screen failure and loss off power, etc etc etc I think the

Hi Everyone, I always use a coax with a string of toroids either a 1 foot attachment or the 50 foot with the toroids already in the 50 foot piece. ?I've done this initially when I received reports

We know it’s a high rate because we can compare to the groups on other radios. I have many rigs and many portable rigs. Have a look at the groups for the 817,705,905. I haven’t seen many reports

How much in % ?

If it is still happening without Power Applied - you probably should take a break from Ham Radio for a while, LOL

Hey All, Just recently, I started hearing the Tx sounds for FT4 & FT8 coming directly from my TX500. There is no MIC/SP hooked up and I put my ear up to the radio and could hear the TX sounds. Any

That would be helpful to know. -- 73, Norm/KC1BMD

So……..is there any way to prevent blowing out the audio chip that us users can do that won’t void the warranty or anything? ?Is it only occurring when using a headphone adapter or even with the

Virtually the same happened to my radio. However, the email was immediately answered. They requested I verify no audio on the pin. Once that was verified, I was given an address outside the country to

I was wondering if Lab 599 has changed the audio chip, the TDA7056at? There seems to be a pretty high failure rate and I am concerned because the chip is no longer produced. There was a reference to

Scott, I have been wondering the same thing. I noticed that 5B4AIY mentioned in his eham review of the rig that the audio chip operates in bridge mode and is dangerous. I reviewed the datasheet for