FHM-1 won't PTT Maestro but VOX works

Keith Schlottman

My Maestro has been working well remoting from my office to home with CW, so I decided to set it up for SSB.  Rather than use a fancy mic, I thought I'd just use the FHM-1 that came with my 6500.  Bought the ACC-CLV-310 cable for the RJ45 connection, which I received today.  But it will not trigger TX when I push the PTT button on the mic.  I've triple-checked that connectors on both sides of the cable are tightly seated.  I can go into the TX Menu on the Maestro and enable VOX, and my voice will trigger TX, so it appears that the mic is working ok.  But I'd prefer to use the PTT switch.  I have never used this mic, it is as new since I have a Heil studio mic at the home station.  I have poured over the manuals and searched the forums but cannot find an answer - Is there some setting that I need to enable to get the PTT switch to work?
Thanks in advance de KR7RK

stevenab

Check the mic profile in the TX menu.

Keith Schlottman

Yes, I've done that.  What I am asking is whether there is some specific setting that I am somehow missing.  It does not seem to matter which profile I choose including "*Default FHM-1 in the mic profile.

stevenab

The profile was my problem.  Nothing else comes to mind!

Ernest - W4EG

I tried to save a buck by buying 2 mic cable on eBay; to later find out they were both miswired. 
Made my own and I got rid of the problem.

Tim - W4TME

I recommend using an ohm meter to verify that the PTT switch is working by checking the resistance at the connector pins as the first step in troubleshooting.  It should read 0 ohms when closed.

K1UO Larry

Push the Mic/Speed Power button on the right side of the maestro and make sure the correct Mic Input is selected.    ( M-Mic1 if using the Maestro handheld)

Keith Schlottman

I am fairly certain there is a problem with the cable.  The mic works fine when using the cable that came with it (RJ45 to the mic, 8-pin to the 6500) plugged into the 6500, which implies that the PTT switch on the FHM-1 is working fine.  And I am able to use a Yaesu MD-100 mic on the Maestro without problems using the cable that came with that mic (8-pin to the MD-100, RJ45 to the Maestro), which implies that the Maestro female jack is receiving the signal from the PTT line just fine.  Thus, I can only assume that the failure is occurring somewhere in the brand new RJ45 mic cable that I purchased for the FHM-1 mic - to - Maestro combination.  As I said earlier, VOX works so the audio is making it from the mic into the Maestro.  It's only the PTT that does not want to work.

I'll submit a Help Desk ticket.  Thanks to all for the ideas.

Keith KR7RK