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Pigtails for a VHF/UHF Amateur Radio XC90 2019

posted by  HHSIII on  Fri Aug 26 11:16 CST 2022
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last visit: Sat Aug 16 20:45 CST 2014
[RELATED]

Looking at my XC-90 battery to install fused pigtail and a "charge guard" unit to feed my 12V powered VHF/UHF radio. I see a tap off on the negative cable that I can put a lug on attached to a 10 Ga wire. On the positive side there are two red cables off of the battery. One larger than the other. The smaller of the two looks like it is fed through a fuseable link. I was going to put a lug on the smaller of the two and again go to 10 Ga wire. I noticed at the front of the battery there is a black plastic flap marked "+" under which is another post. What is the difference between this lug and the small red lug? I am inclined to hook up the negative like I described and hook the positive up to the lug under the plastic flap at the front of the battery. Again, both of my pigtails are fused with inline fuses. Am I going down the right path here or is there a better way to skin this cat?








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    posted by  someone claiming to be on  Wed Dec 31 18:00 CST 1969 [RELATED]

    You can piggy back to the hardware on the + terminal so long as the new
    wire is fused. You probably need codes to reset your Volvo radio.
    I ran 2 meter transceivers from the 25A cigar lighter with no issues.

    Be mindful of duty cycle with VHF transceivers. It's probable best to
    run 10 watts, than full power and risk trashing your RF power module.
    Heat will kill those expensive modules and the protection circuits
    sometimes are poorly designed. What's your call?

    Bill
    N1 Barnacle Bill



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      posted by  someone claiming to be on  Wed Dec 31 18:00 CST 1969 [RELATED]

      Thanks for the input Bill. I will on occasion run a Yaesu FT-8900R in this vehicle. It is my XYL's car and she is not ready for a permanent radio presence in the vehicle. Thus the pigtails with power poles on the ends. There is enough of a spud on both the "+" and the "-" connectors that I can put a lug on and a second nut so I shouldn't have to power down the vehicle to install the connectors. But good thought on the radio codes. I remember when I bought a new Volvo 850 it came with a card giving the codes. Don't remember getting one for either of the XC-90's I've owned. Will need to research that. My call is N1FAM. I see you are in MA. MY oldest son is in Andover NC1V. Thanks again. 73



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