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I have the 400hd. I replaced my wires with #4 awg and installed twist welding connectors. I would not splice the wires. Install some Anderson power connectors. A At-5555n ii may be a little too hot for this amp. the recommended power input for this amp is 40 watts peak power.
His amp is class B...
I run the 400hd( as a base amp) on a 100 amp power supply (3x) 6 volt server supplies each set to 4.83 =14.5vdc @100 amps. My supply dips to 14.4 when I transmit on SSB. I run the Anytone At-5555n ii on a seperate 50 amp switcher supply @ 14.3 volts. Most of my DX is done on SSB but I get great...
I have a Carlbuilt 400hd (SSB bias) that I run on 14.5 volts driving it with a AT-5555n ii ( 70 watts peak). With a 4 watt dead key I get about 80-100 watt DK swing to 550-600 peak (bird) with crystal clear modulation.
Very happy with my Carlbuilt amp. Looks like his shop is back open with a...
I will check again. The stock mic that comes with the radio is an electret type microphone(voltage is present on the audio pin). So if you use a non-electret type or a power microphone you need to turn off this voltage. if not; you could damage the mic and or radio.
Thanks Eddie, this gives me a real good starting point. This antenna is not too complex so I won't try to brain storm this project. I owe you cold beer or maybe a nice cranberry juice...lol. Thanks again my friend
I want to thank all of the gentlemen and ladies (if applicable) who chimed in on this thread. It was a wonderful read. I too purchased a 15 meter MFJ moxon. I will use this on 11 meters (27.205) but I will try to scale the 15 meter model down to 11 meters rather than using the calculator. I will...
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