Recent content by SuperLid

I have no experience with this PLL and there are no service docs that I can find, apart from a datasheet for the C5121. This leaves me with some questions, that hopefully someone with experience knows the answers to. 1: The channel selection is stuck on channel 9. No up or down changes. 2: The...

There is nothing wrong with your radio.

What are you measuring with?

What are you measuring with and how? Can you look at what is going onto the PLL mixer? 22.500 is roughly, the second harmonic of the carrier oscillator. If your counter range caps out at 30 MHz, you may not be seeing the third harmonic after the tripler. Look at TP6 and tune L24. I would also...

What mode?

He ripped them off, design flaws and all. I have one of the NOS Superstar JA's (Original Jackson). It was FUBAR'd the day I took it out of the box. They copied the erroneously engineered RX AGC, that had a Uniden tech service bulletin issued. I did that update and all was well. The Uniden...

These manufacturers, are stealing from each other. QX sued TYT and won. No more schematics from them. Now, Ranger steals from QX and they don't want to get caught, so no more schematics from them. Do a comparison, of an old Ranger and an old Uniden. They are in the ripoff business and have been...

I have a large supply of these, if anyone needs them. They work in the driver and final positions. I have measured and tested them in and outside of a radio.

This is also the first I have heard, that they picked up Ameritron and Mirage. The initial acquisition, was only Hy-Gain and Cushcraft. Those are the only brands, that mattered, at MFJ. I have Yaesu rotors too, but my old Hy-Gains, have a place in my life a Yaesu cannot fill. A few need a...

I need parts for my Hy-Gain rotors!!!

Does he, or a neighbor have solar?

Probably easier to make one, than find a broken one.

Maximum voltage. Maybe the clarifier has been modified?

First thing I would do, is go through the TX alignment, see where that brings you.

I downloaded CPS, read the radio, which alerted me to the outdated firmware. I had also downloaded the firmware, from the Retevis website, at the same time as the CPS. I didn't read any docs prior to connecting to the radio, so things went smoothly. The CPS was intuitive enough for me to write a...