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Uniden 980 SSB

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  #89  
Old 06-22-2012, 07:19 AM
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Mitsubishi rd16hhf1.
Data sheet.



http://www.rfparts.com/pdf_docs/RD/rd16hhf1.pdf

RD16HHF1 is a MOS FET type transistor specifically
designed for HF RF power amplifiers applications.
FEATURES
•High power gain:
Pout>16W, Gp>16dB @Vdd=12.5V,f=30MHz


73
Jeff
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  #90  
Old 06-23-2012, 05:22 AM
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Thanks for the high rez pics! Looks like D32 and D33 could be the trick for mods! Maybe!!

Also the part ID of the final is cool.... shows it to be limited but not too bad.... I wonder if this is a similar final used as in the RL amps?

This 980 reminds me of the TRC-485 to a degree but a generation or two ahead!

My turn is coming for a new one real soon!

73 mechanic!
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Last edited by mechanic; 06-23-2012 at 05:25 AM. Reason: More stuff!

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  #91  
Old 06-23-2012, 08:37 AM
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Damn those pics are better than my vision LOL Now who has the guts to cut those wires W1 and W2 to see what happens? Channels?? Clairfier corse and fine unlock?? Has to have something to do with that part of the board

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  #92  
Old 06-25-2012, 05:36 PM
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Good eye Tucker, I thought the same thing and I had a close look at W1 and W2 when I had the radio open. Two jumper wires sitting so obvious like that did stick out but after looking closely at the traces I don't think cutting them would do anything to change the frequencies.

I could be wrong but I doubt Uniden would allow it to be that easy, FCC would be all over them.
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  #93  
Old 06-25-2012, 06:01 PM
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Aw come on give it a try, worse case you just solder them back together. I'm sure it won't blow anything up just might be the ticket for the mods

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Old 06-25-2012, 07:19 PM
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I just unsoldered one end of W2 and the S meter stopped working

There ya go.
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  #95  
Old 06-25-2012, 07:28 PM
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Several old SSB rigs had wires or resistors to snip to give added capabilities.... AR-3500, TS5010, Yaesu FT747 come to mind! Then a reset of the CPU and!

Yes sir! W1 and W2 look mighty intriguing!

73 mechanic

Next week I order mine!
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  #96  
Old 06-25-2012, 07:35 PM
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I agree with Dave, I'm sure Uniden designed this to be unfriendly to modify.The export version might be available before someone figures out how to channelize the 980.

Last edited by IMD262; 06-25-2012 at 08:31 PM.

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