| Author |
Message |
    
Troyota
Junior Member
Username: Troyota
Post Number: 22
Registered: 4-2004
| | Posted on Saturday, November 17, 2007 - 11:48 pm: | 
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i have a 1999 uniden pro 510xl. it doesnt have the normal tune up places. it must have a new style board in it. does anyone know the tune up on this radio?
thanks |
Kb2rgz
Junior Member
Username: Kb2rgz
Post Number: 16
Registered: 11-2009
| | Posted on Saturday, August 11, 2012 - 8:58 am: |
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I have the new board marked 2011 looks L203 with the wax is am power, Turned it down to 2 watts for use with a small Rm amp also Have am DM-452 mic. Anybody have more mods for modulation???
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Kb2rgz
Junior Member
Username: Kb2rgz
Post Number: 16
Registered: 11-2009
| | Posted on Sunday, August 12, 2012 - 12:13 am: |
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DM-452 Squeaed. even after adjusting. Older full sized uniden mic low audio, RK-56 new low audio. Best mic was the small mic that came with it.Even tried a silver eagle. Where is the mod adjustment or gain. set it 4 or 4.5 watts out and grounded to frame Conected the Superstar DM-452 to the 2950dx works good at the base |
Dale
Senior Member
Username: Dale
Post Number: 1874
Registered: 12-2002
| | Posted on Sunday, August 12, 2012 - 4:30 pm: |
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may wanna try adjusting the gain inside the 452.
mine when i got it new from the box mine was
adjusted for max audio.and being that radio has no mic gain thats what id try. may/may not work
dale/a.k.a.hotrod
cef426
cvc#64
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Press_man
Advanced Member
Username: Press_man
Post Number: 592
Registered: 5-2008
| | Posted on Wednesday, August 15, 2012 - 5:32 pm: |
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Info I found-Cut one end of D-203 stand it up and put the stock mic back on, see what you think. If it's old chassis cut D-14.
73 Pressman
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Press_man
Advanced Member
Username: Press_man
Post Number: 595
Registered: 5-2008
| | Posted on Friday, August 17, 2012 - 3:00 pm: |
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Did it work?
73 Pressman
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Latenightroach
New member
Username: Latenightroach
Post Number: 1
Registered: 8-2012
| | Posted on Friday, August 24, 2012 - 3:35 am: |
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Please don't mind if I chime in...
I have the exact same board pictured above, but apparently the latest model doesn't seem to have a # D203 (unless I've gone totally blind and senile). Seems like it changed yet again, perhaps to another number? I just bought one of these 510XL's a few days ago and I'm trying to open up the modulation. After extensive searching on google I've found nothing on the internet for the latest board it seems.
If someone could mark a red circle around the diode that is supposed to be D203 in the picture posted above and re-post it, it would be a great help. |
Dale
Senior Member
Username: Dale
Post Number: 1878
Registered: 12-2002
| | Posted on Friday, August 24, 2012 - 2:12 pm: |
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to my best of knowledge theres not alot of
tuning 4 these.ive used these before and just used
a d104m6b or 452 and ajust them for best audio
dale/a.k.a.hotrod
cef426
cvc#64
454 [dx numbers]
38lsb
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Press_man
Advanced Member
Username: Press_man
Post Number: 608
Registered: 5-2008
| | Posted on Saturday, August 25, 2012 - 6:54 pm: |
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The board may have been changed again. Do a tune and try what Dale used.
73 Pressman
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Latenightroach
New member
Username: Latenightroach
Post Number: 2
Registered: 8-2012
| | Posted on Sunday, August 26, 2012 - 1:38 pm: |
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Update - Apparently the board did change again.
For the 2011 and up manufactured 510XL's the D203 diode is on the trace side of the board underneath a metal shield that is soldered onto the board. A little hassle to get to now, but with a little patience it can be done with some de-soldering.
Until I feel motivated to bring my soldering iron home from work, I'll just use a 575 M6 for my Ranger AR3300 that plugs up and works fine with the Uniden 510XL. |
Press_man
Advanced Member
Username: Press_man
Post Number: 612
Registered: 5-2008
| | Posted on Sunday, August 26, 2012 - 6:38 pm: |
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Some say the 510XL has audio that's strong like Tram. If it distorts you may want to add a 100ohm vr in series with diode and insulate it from board. The stock mic is still great once clip is done. Thanks for follow up.
73 Pressman
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Latenightroach
New member
Username: Latenightroach
Post Number: 3
Registered: 8-2012
| | Posted on Monday, August 27, 2012 - 3:28 am: |
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Another update -
Well I couldn't resist. I de-soldered the anode end of D203 and bent it up. I left the wattage alone to keep a low drive with max modulation. Out of curiosity I left my 575-M6 on instead of the stock mike and hooked up this little booger to my old Wawasee meter that has a talk-back jack for headphones. I was expecting this thing to squeal like a pig, but oh boy this little thing sounds sweet with the old adjustable Astatic teardrop. Even sweeter yet with a little mosquito. Not as wicked as my old PI made 148 GTL, but for a 33 dollar rig that's suited fine for a Jeep in the bushes you can't go wrong.
So here are a few notes for the 2011 and newer 510XL's....
1) D203 is now located on the trace side of the board instead of the component side.
2) There is a metal shield soldered onto the board that covers this little diode. You need to de-solder this shield (4 legs) to get to the diode.
3) You are unable to "snip" the diode itself because the ends of it are soldered very close to the board. One end of it needs to be de-soldered and then lifted up slightly and gently. Make sure it doesn't touch the shield after you solder the shield back on.
-------
Well that's about it for the modulation on the 510XL. Removing one end of D203 from the circuit will definitely make it a bit louder than just turning up the pot.
- Roach |
Tech833
Moderator
Username: Tech833
Post Number: 2196
Registered: 8-2002
| | Posted on Monday, August 27, 2012 - 12:14 pm: |
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Keeping in mind that with no audio limiting, the carrier can be "pinched" and the output will splatter. That also enables people with intact radios to "talk through" your signal with your carrier pinched.
Have you ever noticed how some radios seem to block out most everything else on the channel while others, you can hear even weaker signals through them?
Best bet- Leave audio limiters in place. When aligning a transmitter, align so that carrier is not pinched on audio peaks.
Your radio 'Mythbuster' since 1998
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Revpo
Advanced Member
Username: Revpo
Post Number: 684
Registered: 7-2006
| | Posted on Wednesday, April 02, 2014 - 9:23 am: |
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On these pro510xl which COOPERS is selling, where is the or coil for a boost in power located
CEF 795
73
REVPO/DOCTOR/CEF 795
Wavin a hand from the cornfields of INDIANA
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Press_man
Advanced Member
Username: Press_man
Post Number: 757
Registered: 5-2008
| | Posted on Thursday, April 03, 2014 - 6:46 pm: |
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Is your 510 a new SMT board or older board?
73 Pressman
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Dale
Senior Member
Username: Dale
Post Number: 2067
Registered: 12-2002
| | Posted on Sunday, April 06, 2014 - 3:24 pm: |
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833 is correct. that 575 is a awsome mic byitself.
im betting it alone would done fine. the 452 mic
is cheap and in my installs i seemd to always
have some issue. oh well get what ya pay for i guess
dale/a.k.a.hotrod
cef426
cvc#64
454 [dx numbers]
38lsb
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Kg4ryt
Member
Username: Kg4ryt
Post Number: 66
Registered: 4-2002
| | Posted on Wednesday, July 30, 2014 - 4:56 pm: |
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The new SMT....Removed D203 now it swings to about 22 watts, carrier at about 4.5. No problems, but i'm still using a stock mike. This was my first time with the new boards. |
