| Author |
Message |
    
Red_rider_777
New member
Username: Red_rider_777
Post Number: 1
Registered: 2-2005
| | Posted on Monday, February 07, 2005 - 11:39 pm: | 
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I need MAJOR help!! I have a navajo base that will not perform right... i know its way old.. but its a good radio from what i hear. It does not recieve any signal from any distance whatsoever. maybe a mile range... and the transmitting signal has power but it seems the rf gain or the mic gain is EXTREMEly low!! what should i do??? or do i need to just throw it away?? PLEASE HELP! its an old radio my dad gave me along time ago. |
Brownsmillsch18
New member
Username: Brownsmillsch18
Post Number: 6
Registered: 2-2004
| | Posted on Tuesday, February 08, 2005 - 12:18 am: |
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Don't throw it away,
I would check the alignment in the RX section first. As far as the mic gain being low, it may need to be realigned in the TX section as well. Also, it's just me, but I like to run an external power supply when first testing/diagnosing old radios like that. I do all of my aligning/tuning with the power supply, then I go ahead and use the radio's power supply. If you have low output readings on the wattmeter, check for good voltage regulation. There is a pair of transistors in this particular radio, that if one goes bad, poor performance will result. As any good tech knows, when you replace transistors in this configuration, always replace both. The bad transistor could've weakened the good one.
I would recheck everything on an external supply. Then go from there.
-Little Ranger- |
Bruce
Senior Member
Username: Bruce
Post Number: 2188
Registered: 9-2003
| | Posted on Tuesday, February 08, 2005 - 8:01 am: |
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hummmmmm
RedRider
Did this happen after a storm?
How much output are you getting? |
Barracuda
Intermediate Member
Username: Barracuda
Post Number: 289
Registered: 3-2003
| | Posted on Tuesday, February 08, 2005 - 2:00 pm: |
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This may seem like a silly question, and maybe it is, but before you dive into the radio, is the antenna system any good?
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Usa2112
New member
Username: Usa2112
Post Number: 2
Registered: 2-2005
| | Posted on Saturday, February 12, 2005 - 11:22 pm: |
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Ahhhh my first radio back in 1976,the Realistic Navajo! with a silver eagle and a Big Stick! Memories!!!! Sounds like the finals are weakening or near blown. |
