cobra 2000 gtl
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RedBaron324
- Donor
- Posts: 26
- Joined: November 3rd, 2021, 11:07 am
- Handle: Red Baron
- Real Name: Michael
- Call Sign: 324
- Antenna: Maco 3 element beam, Sirio New Tornado 27
- Radio: Excalibur SSB
- Contact:
cobra 2000 gtl
My Personal Cobra 2000gtl has no TX.. well very very little... can hear it on a radio real close by on SSB, and just a slight hum on AM, had no Rx either,did a complete recap and got Rx back, the Tx is baffling me, changed out the 1307 final to a 1969, still no Tx... Heeeeellllllpppp! lol
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Hawkei1967
- Mud-Duck Sr.
- Posts: 6
- Joined: August 16th, 2023, 2:20 pm
- Handle: Hawkeye
- Real Name: Rick
- Call Sign: KM4VAZ
- Antenna: Antron 99 OG side mount for base, 102" steel whip in mobile
- Radio: DX959 barefoot in house, DX949 w/RFX75 in mobile
- Contact:
Re: cobra 2000 gtl
No transmit in any mode, AM/USB/LSB?
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RedBaron324
- Donor
- Posts: 26
- Joined: November 3rd, 2021, 11:07 am
- Handle: Red Baron
- Real Name: Michael
- Call Sign: 324
- Antenna: Maco 3 element beam, Sirio New Tornado 27
- Radio: Excalibur SSB
- Contact:
Re: cobra 2000 gtl
No sir, well as I said, you can faintly hear it on a radio roughly a foot of 2 away.
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Hawkei1967
- Mud-Duck Sr.
- Posts: 6
- Joined: August 16th, 2023, 2:20 pm
- Handle: Hawkeye
- Real Name: Rick
- Call Sign: KM4VAZ
- Antenna: Antron 99 OG side mount for base, 102" steel whip in mobile
- Radio: DX959 barefoot in house, DX949 w/RFX75 in mobile
- Contact:
Re: cobra 2000 gtl
Clean the Bias adjustments in the driver/final section, then readjust bias according to specs.
Test it out.
If you still have same issue, then replace the 2 bias electrolytic caps in the driver/final section, readjust bias and retest.
If you still have no transmit, then check collector voltage on driver, then on final. Replace faulty driver or final, readjust bias, test again.
Test it out.
If you still have same issue, then replace the 2 bias electrolytic caps in the driver/final section, readjust bias and retest.
If you still have no transmit, then check collector voltage on driver, then on final. Replace faulty driver or final, readjust bias, test again.
