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Message |
    
Bluegrassflash
New member
Username: Bluegrassflash
Post Number: 5
Registered: 3-2006
| | Posted on Thursday, March 09, 2006 - 12:36 am: | 
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It seems like my radio is getting way out there but, for some reason I can't hardly hear anybody unless they're within a couple miles from me. Seems like there's just too much static or something. Anybody have any ideas that could help this. I thought maybe a preamp but, I really don't know much about radios. That's why I'm here. Thanks |
Kid_vicious
Senior Member
Username: Kid_vicious
Post Number: 1279
Registered: 9-2004
| | Posted on Thursday, March 09, 2006 - 7:07 pm: |
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is your radio in a mobile setup?
give us all the details.
antenna, location, amps, jumpers, everything.
help us help you,
also include what type of vehicle if in a mobile.
i have some ideas, but i want to get more specific before i break my fingers trying to type them all.
what is the normal s-meter reading on your radio in AM mode when no one is transmitting. (dead air)
what does it sound like?
matt |
Bluegrassflash
New member
Username: Bluegrassflash
Post Number: 7
Registered: 3-2006
| | Posted on Thursday, March 09, 2006 - 8:40 pm: |
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Okay it's a mobile setup with a 5ft wilson top loaded atenna. I have it in a freightliner carhauler. I've already grounding everything two or three times because the mic wanted to bite my lips when I keyed down. I don't have any amps other than the one on the 95T. S-meter is usually between 1 and 3 when I have dead air. It really just sounds like loud static with voices far off in the distance usually. I can hear the people who have the big radios but that's about it unless the person is within a mile away. Thanks Matt for helping me out with this. I'm frustrated because I just got this radio two weeks ago and I could hear better with my little uniden pc76 I had before. |
Vanillagorilla
Intermediate Member
Username: Vanillagorilla
Post Number: 494
Registered: 4-2005
| | Posted on Saturday, March 11, 2006 - 5:24 pm: |
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I suppose we should touch on the basics here first...and FIRST let me state that I do not have a 95T but have been around a few so work with me here.
How about that 40db attenuator switch that takes the place of the RF gain that SHOULD be there? Any improvement when you switch it? Are you familiar with RF gain and how it works? IF you used it on your Uniden76 then thats what the switch is for on your 95 but not sure how its labeled? I heard cuts out a LOT! Try that first and let us know..
Hank CEF559 |
Kid_vicious
Senior Member
Username: Kid_vicious
Post Number: 1283
Registered: 9-2004
| | Posted on Saturday, March 11, 2006 - 10:49 pm: |
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good point hank!
check that switch first.
next step is to check the SWR of your antenna.
you dont have to calibrate the meter on this radio, just switch the meter switch to the SWR position and read the radio's meter looking at the scale marked "SWR".
what is the reading on ch.1 ch. 20 and ch.40?
is your high SWR light coming on?
no? good.
yes? bad.
where is the antenna mounted and how?
now lets make sure that radio has enough current gettting to it.
what gauge of wire are you running to power the radio, and where is it going to? that radio needs min. 8 gauge wire. pos and ground.
it should be going right to the battery pos. terminal.
the negative wire should also be going to the battery unless you are sure that the spot you have it grounded to is bonded well to the frame, chassis, body, etc...
you need to use ground straps for this.
now lets check for noise.
with the vehicle off, (key in the OFF position),
turn on the radio with the antenna connected, and write down the S-meter reading.
push the -40db switch in, and write down the S-meter reading.
not sure how the fuel pumps work in the diesels, but try turning the key to the ON position with the radio on.
do you hear a short buzz or whine that goes away in a second or two?
start the vehicle. is it back?
turn vehicle off.
disconnect antenna from radio.
what is the S-meter reading?
turn ignition to ON position.
any noise?
start vehicle. any noise?
reconnect antenna to radio.
remember that depending on where you mounted the antenna as opposed to where the bulk of the metal on the vehicle is will make the antenna directional with the most signal going in the direction of the most metal.
(antenna on trunk, most signal going towards front of car)
post your answers and we'll go from there.
glad to help,
matt |
Hotwire
Senior Member
Username: Hotwire
Post Number: 1053
Registered: 1-2005
| | Posted on Sunday, March 12, 2006 - 12:55 pm: |
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If your using the same coax and antenna that worked with the Uniden then its probably something wrong with the radio. I would use the warranty and send it back or have a good tech investigate the problem along with a reciever tuneup. good luck 73 |
