I found the X9000 service manual online and it describes the setup to change the power output. I followed the steps to change the pots fully clockwise. Power output at full clockwise is at 15-20 Watts. I adjusted the power set pot fully counter clockwise, and I was only able to increase the power output to 45 Watts.
This is obviously a 110 Watt radio. Something must be wrong. At this rate, low power performance, plus incorrect software (can't program above 53 MHz), and just not able to figure it out I should just throw my 6 meter MaxTrac back in the car!
X9000 low band Low Power Output
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Re: X9000 low band Low Power Output
btrains wrote:I found the X9000 service manual online and it describes the setup to change the power output. I followed the steps to change the pots fully clockwise. Power output at full clockwise is at 15-20 Watts. I adjusted the power set pot fully counter clockwise, and I was only able to increase the power output to 45 Watts.
This is obviously a 110 Watt radio. Something must be wrong. At this rate, low power performance, plus incorrect software (can't program above 53 MHz), and just not able to figure it out I should just throw my 6 meter MaxTrac back in the car!
Check your PM.
Jim
Re: X9000 low band Low Power Output
There's two pots in almost all Motorola power amp control circuits. That radio is rated for not less than 100W.
Re: X9000 low band Low Power Output
SlimBob wrote:There's two pots in almost all Motorola power amp control circuits. That radio is rated for not less than 100W.
The Syntor X9000 is not that hard of a radio to work on. You just need to be a weight lifter to move it around. There are 2 adjustments to set the TX output. One is the current limit and the other is the RF output.
If you go to the repeater builder site and look up the Syntor X9000, there is some good information. There is also a couple of links to other web sites. The Mike B site probably has the most detailed information.
The software is available for the ham frequency range. You can also take the radio up to 255 channels if you want more than the stock 32 channels by changing out the EEPROM. Then just move a jumper on the control board right next to the IC you changed.
Feel free to contact me if you need some support and help.
Jim
Re: X9000 low band Low Power Output
After I posted this I did exactly that, only to find that the lowband radio has one power control pot.
Yes, I've collected a stack of them. 10m/6m/2m/70cm. Didn't try to get one on 900MHz, but it looks like it's possible to convert one to 220MHz from VHF. The VCO already goes to RXfreq+53MHz already. 150 + 53 = 203 MHz, 174 + 53 = 227 MHz.
These days, I use them as anti-theft measures. Anything under them won't be hauled off by less than a half battalion of men.
Yes, I've collected a stack of them. 10m/6m/2m/70cm. Didn't try to get one on 900MHz, but it looks like it's possible to convert one to 220MHz from VHF. The VCO already goes to RXfreq+53MHz already. 150 + 53 = 203 MHz, 174 + 53 = 227 MHz.
These days, I use them as anti-theft measures. Anything under them won't be hauled off by less than a half battalion of men.