Merv The 101 s have a dedicated linear jack , 15 pins. With the acom you use only pin 2 tx gnd en pin 3 gnd . This line goes to an rca jack at the rear of the acom , marked key in You can use pin 8 al

Doug Glad that the problem is solved , now look for the cause within the amp connection. ps : I never do free climbing, not on my tower , not on mountains. Dirk on4ct

I understand that an amp is connected. Disconnect the amp, and the cable(s) Try again. Sometimes the Tx inh connection to the amp can cause a no power output. Dirk on4ct

Nate I think is a ' windows ' software problem. One reason I can think of , is that there other tasks to do for windows and that this windows is shutting down the soundcard. Look at the taskmanager wh

Bill I do not known where the 80c critical number is coming from. I find no clues in the manual . The precessors of this radio had a warning in the manual about heavy duty modes such as rtty, to reduc

Phil No I am very pleased with the performance of the internal soundcard . Decoding as good as any other device. Dirk on4ct

Doug With the ct-178 cable you have it all to run the quadra. Following the bands, ptt, and alc ... it is very good combo. The manual is quite clear on this interconnetion. The ATT switch on the amp i

Why is this relevant info not in the manual ? An unreachable fuse ? What the heck. Dirk on4ct

What is the MAX version offer more over a stock firmware upgrade MP ? Is this another marketing move of a seller ? Dirk on4ct

Hello What does this 'MAX' version offer more than a standard MP upgrade with the latest Firmwares ? Is this an another marketing move of yaesu/gigaparts ? Dirk on4ct

Guy Tom A good working ps does not radiate RFI at all. I it is good thing to check other rfi sources before sending it to yaesu service. Dirk on4ct

Guy and Tom Keep us informed of the results of problemshooting or service from yaesu . Dirk on4ct

Dave and Tom Not normal, this new power supply is running not as it should. Back to the dealer in warranty. Dirk on4ct

The arb 704 is needed when you an amp with a pulldown ptt of more than swithing voltages/current that the transceiver can handle. e.g. a Heathkit sb 200/220/221 serie needs 110 V at some mA . In such

The 15 pin linear jack and the rca jack TX gnd can be used to switch the amp. If you use the 15 pin jack , use pin 2 and 3 . both jacks can handle +60V at 200mA or +30 V at 1A. What I known is that th

Rob The best guide for rtty is aa5au website. google it ... the tricky thing in fsk is to downlaod exfsk file . There are also some messages in this forum , with the search function you will find. Dir

Rick If you got mmtty working in RTTY mode, including the exfsk setup then it must be working if : in the config menu : hardware the com port called 'standard' , in my case com3 click on digi also. in

The pfd document . Dirk

Jan very usefull document. Can you upload it in the file section ? Thanks Dirk on4ct

Art in this tread there are pictures of screen shots. Dirk on4ct