| Author |
Message |
    
Freebird
Intermediate Member
Username: Freebird
Post Number: 352
Registered: 1-2003
| | Posted on Wednesday, January 18, 2006 - 10:00 pm: | 
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My uniden grant xl sounds muffled when I transmit people tell me.It does it on both am and sideband.Te guy I bought it from told me he had a mod done to it to make the receive sound quit but im not sure what its
called
but im wondering if that would have anything to do with it?Anyway what do you think would be making my transmit sound so muffled?thanks!73s |
Hollowpoint445
Senior Member
Username: Hollowpoint445
Post Number: 1028
Registered: 6-2004
| | Posted on Thursday, January 19, 2006 - 9:21 am: |
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Clipped limiter or NPC mod is my guess. |
Freebird
Intermediate Member
Username: Freebird
Post Number: 353
Registered: 1-2003
| | Posted on Thursday, January 19, 2006 - 4:09 pm: |
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Yeah the mod was a bunch of numbers and letters or something but anyway im wondering if thats why the radio is all muffled when I talk on it?to bad i trusted the guy im sure thats why he sold it. |
Hollowpoint445
Senior Member
Username: Hollowpoint445
Post Number: 1030
Registered: 6-2004
| | Posted on Thursday, January 19, 2006 - 5:50 pm: |
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Does it clear up if you back down the microphone gain a lot? |
Vanillagorilla
Intermediate Member
Username: Vanillagorilla
Post Number: 431
Registered: 4-2005
| | Posted on Thursday, January 19, 2006 - 9:08 pm: |
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Which mic are you using Freebird? TRY to get me on 27.225 any night during the week after supper till about 10pm. I talk to quite a few of CT locals from the island every night. Be glad to hit you with a radio check. Had you on the net Sunday and I can't tell if it was Short skip conditions or what but you certainly made the trip.
Anyway...my point was I noticed those Turner desk mics sound muffled TO ME on a clipped rig.
Hank
...hope to hear you soon~ BTW...I'm "905" over there...shout me. |
Kid_vicious
Senior Member
Username: Kid_vicious
Post Number: 1065
Registered: 9-2004
| | Posted on Thursday, January 19, 2006 - 11:54 pm: |
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was the mod he referred to called the "2SC2999 mod"?
if so, it has no effect on the audio quality of the radio.
check to see if these parts are cut or missing.
R131
TR26 (right behind R131)
TR24
these parts are near the front right looking at the component side of the PC board, knobs facing you.
now look near VR11.
is there a resistor clipped near here?
is VR 11 turned all the way to one side?
now check VR 10. its hidden on the right hand side of the audio transformer (the smaller one, on the PC board)
is it turned all the way one way?
what is your dead key wattage?
if any of these parts are gone or clipped. replace them and turn VR 10 and 11 to mid way.
now how do you sound?
matt |
Freebird
Intermediate Member
Username: Freebird
Post Number: 355
Registered: 1-2003
| | Posted on Monday, January 23, 2006 - 9:56 pm: |
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ok i havent been here in a while but ill try looking at everything later tonight.yeah that does sound like the mod 2SC2999.905 ill try you this week on 27.225 you talk am there or sideband?i can talk to guys or there no problem most of the time.and matt thanks for the tips ill check them all out.later |
Freebird
Intermediate Member
Username: Freebird
Post Number: 356
Registered: 1-2003
| | Posted on Monday, January 23, 2006 - 10:07 pm: |
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I still cant find R131 where the heck is it?lol....i did find one thing that was cut R44 is cut on one side im not sure what for? |
Freebird
Intermediate Member
Username: Freebird
Post Number: 357
Registered: 1-2003
| | Posted on Monday, January 23, 2006 - 10:14 pm: |
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D 52 is cut on one side also |
Freebird
Intermediate Member
Username: Freebird
Post Number: 358
Registered: 1-2003
| | Posted on Monday, January 23, 2006 - 11:10 pm: |
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ok i just put the radio on the meter and its only keying up and half of a watt for some reason.But when i whistle into the mic it swings up to 10 watts this i dont get would this radio have a swing kit in it maybe?im not really sure i bought it used .grrrrrrrrrr |
Bruce
Senior Member
Username: Bruce
Post Number: 3453
Registered: 9-2003
| | Posted on Tuesday, January 24, 2006 - 6:45 am: |
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i sent you a e-mail freebird .... |
Kid_vicious
Senior Member
Username: Kid_vicious
Post Number: 1085
Registered: 9-2004
| | Posted on Tuesday, January 24, 2006 - 9:54 pm: |
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D52 and R44 are cut to unlock the clarifier.
R131 is near the right side looking at the component side of the board.
right in front of TR26.
right near L1 and L2.
for the dead key; check VR10, its to the right of the transformer, hidden under some wires.
its probably turned all the way one direction.
watch the dead key as you turn it and dont go past about 3 or 4 watts.
matt |
Freebird
Intermediate Member
Username: Freebird
Post Number: 360
Registered: 1-2003
| | Posted on Wednesday, January 25, 2006 - 9:51 pm: |
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thanks kid ill give it a try ill keep ya posted. |
