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My LA-1K has developed an issue in the internal SWR protect circuit. When I key the amplifier in STBY mode with only 10 watts drive, the amplifier sees a HIGH SWR on the output and the internal

Raul, So sorry I got confused.. now I can clearly see you were referring to "SEND" (requiring a switching diode) within the ACC socket that I'd connected nothing to it as can be seen in the photo I

Ray I wanted to use pin-3 of the 13pin plug for send and noticed this a while back. It was weeks after I saw when I finally got the radios set up. Ive got a big workload going on and getting confused

Just curious, Raul, which of the IC-7300 books mentions the need of a diode across the PTT line, when using the "SEND" jack? The IC-7300 Basic Manual mentions on page 2-5 under Warning!: " The

Hi Raul, I an the owner of an LA-1K that had a similar issue you have experienced. As Ron WA2EIO just mentioned the RCA jacks are mounted (secured only via solder connections) to the circuit board.

Ray good info all around, and same for the other responses. I was doing my classic overthinking and making sure I didnt damage the IC-7300. I opened up the amp and nudged connectors and a bit and

Great that you got it working!?? Enjoy the amp. I seem to remember reading that the RCA jacks are board mounted, and not actually mounted to the back metal panel, so something might be

Yeah Ive had that duck phrase in mind before.... Palstar told me to open it up and look around for a loose connection (due to shipping shocks) I didnt see any, moved a few things around, and it

Raul, Kent brings up a good point; you can only have one cable connected, either the PTT line to the rig or the 13 pin DIN line. If I may suggest a simple troubleshooting suggestion, in case you have

Well...if it looks like a duck and quacks like a duck, it's probably a duck. Amp is defective. No charge for this assessment...

Photo attachments redo; didn't send correctly previously,

Hi Raul, I have just paired my LA-1K with my IC-7300 to let you see and hear them in action on 20M via this short video clip https://youtu.be/jQYr0s6ykUE.? Btw, I don't normally pair my IC-7300 with

Raul ... I should add that a band-data line is not necessarily required. The first application of RF will set the correct band change in the amplifier.? Band-data capability is there, however,

Raul ... Are you sure you have your cabling correct? If there is a PTT line in the interface cable coming from the 7300, it must be connected to pin 7 (Amp Key In) of the amp's XCVR Interface jack.

The button is used when firmware upgrading, and that is why it is right next to the USB connector.?? That procedure in outlined on page 8 of the (online)? manual under "How to Update." Make sure

I just set up the radio desk with a 2022 LA-1K and HF-Auto both purchased used, pristine. This was 2 months ago. I connected to the IC-7300 via the 13pin plug and the PTT RCA connector on the amp. It

I just set up my radio desk with an IC-7300, LA-1K and HF-Auto, both made in 2022. After spending a while to se why the IC-7300 doesnt put the amp in TX mode, I shorted the RCA PTT connector on the

Barry got some/most of the issue description right but for those keeping track at home, the LF energy burst was around 250 khz (not hz) and lasted for a few milliseconds not microseconds.... Glad the

Thanks Barry. Your explanation is very enlightening. Gotta love this hobby !! 73 N7DFH Sent

One more thing, and I should have entered this into the previous message, I would like to THANK EVERYONE involved in helping me resolve this troublesome issue. Regards, Barry Ploof VE6UM.