1
$\begingroup$

I've been using FT8 on my Yaesu FT-450D for quite some time. I decided to try to talk on phone frequencies and discovered neither one of my mics will transmit. My mics are the original hand mic and a Heil headset. I've tried all bands and cannot transmit on any of them. I had successfully talked on the radio but not now. The only change I have made was to change from a switching power supply to a linear power supply. The radio will not transmit on either supply. It only transmits in digital modes. Does anyone have any ideas?

$\endgroup$
3
  • 1
    $\begingroup$ How is the FT8 audio fed into your trx? What happens when you press the PTT switch on your hand microphone? $\endgroup$ Oct 12 '20 at 8:29
  • 1
    $\begingroup$ Hello Lyndon, and welcome to ham.stackexchange.com! $\endgroup$
    – rclocher3
    Oct 12 '20 at 17:19
  • 1
    $\begingroup$ Microphone gain accidentially set to 0? $\endgroup$
    – Burn
    Oct 16 '20 at 17:20
0
$\begingroup$

Try changing mode from DATA-USB to USB/LSB.

$\endgroup$
2
  • 1
    $\begingroup$ I change the mode to USB/LSB with no effect. $\endgroup$
    – Lyndon
    Oct 13 '20 at 14:09
  • 1
    $\begingroup$ Hello and welcome to ham.stackexchange.com! $\endgroup$
    – rclocher3
    Oct 13 '20 at 15:24
0
$\begingroup$

My Xiegu G90 radio has to have the output from the 8-pin connector in the back set to line instead of mic for it to transmit a digital signal into my SignalLink sound card. Could it be that the FT-450D has the same type of settings. which may need to be changed back again from line to mic to send SSB or voice.

$\endgroup$
1
  • $\begingroup$ Hello Lewis, and welcome to ham.stackexchange.com! $\endgroup$
    – rclocher3
    Oct 19 '20 at 13:37

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.