JOHN MACKEY wrote:
>
> hmmm... I would have to check my books, but didn't the low band
> motran use a different channel element than the low band motrac
> on transmit? (Or did they BOTH use the TLN-1082?)
I ... hmmm ... I'll have to look. I did some research on that
specific issue some months back - but it is now on the computer
in the garage.
Well, I did look ... and printed it out .......
( Now the fun begins ... )
Any Motrac model numbers ending in 'HHT' use crystal ovens to
maintain the FCC type acceptance - and are not covered below.
Since the current discussion is about Channel Elements, the
following is by Channel Elements and for the low band Motrac/Motran
series radios:
Channel Radio Model Rec / Number of Tol.
Element Series Series Trans Channels*
TLN1020A U41LLTA Motran Receive 1 Freq 0.0005%
TLN1020A U61LLTA Motran Receive 1 Freq 0.0005%
TLN1020A B61LPB Motrac Base Sta Receive 1 Freq 0.0005%
TLN1020A J61LPB Motrac Base Sta Receive 1 Freq 0.0005%
TLN1020A B71LPB Motrac Base Sta Receive 1 Freq 0.0005%
TLN1020A J71LPB Motrac Base Sta Receive 1 Freq 0.0005%
TLN1021A U41LLTA Motran Receive 2 Freq 0.0005%
TLN1021A U51LLTA Motran Receive 2 Freq 0.0005%
TLN1022A U41LLTA Motran Transmit 1 Freq 0.0005%
TLN1022A U51LLTA Motran Transmit 1 Freq 0.0005%
TLN1022A B61LPB Motrac Base Sta Transmit 1 Freq 0.0005%
TLN1022A J61LPB Motrac Base Sta Transmit 1 Freq 0.0005%
TLN1022A B71LPB Motrac Base Sta Transmit 1 Freq 0.0005%
TLN1022A J71LPB Motrac Base Sta Transmit 1 Freq 0.0005%
TLN1023A U41LLTA Motran Transmit 2 Freq 0.0005%
TLN1023A U51LLTA Motran Transmit 2 Freq 0.0005%
TLN1023A B61LPB Motrac Base Sta Transmit 2 Freq 0.0005%
TLN1023A J61LPB Motrac Base Sta Transmit 2 Freq 0.0005%
TLN1023A B71LPB Motrac Base Sta Transmit 2 Freq 0.0005%
TLN1023A J71LPB Motrac Base Sta Transmit 2 Freq 0.0005%
TLN1049A B61LPB Motrac Base Sta Receive 2nd Receivr 0.0005%
TLN1049A J61LPB Motrac Base Sta Receive 2nd Receivr 0.0005%
TLN1049A B71LPB Motrac Base Sta Receive 2nd Receivr 0.0005%
TLN1049A J71LPB Motrac Base Sta Receive 2nd Receivr 0.0005%
TLN1081A,B C71LHB Motrac Compa Ba Receive 0.0005%
TLN1081A U41LHT Motrac Receive 0.0005%
TLN1081A U51LHT Motrac Receive 0.0005%
TLN1081A U71LHT Motrac Receive 0.0005%
TLN1081A N01LNB Satellite Rec'r Receive 0.0005%
TLN1081A U41LLTB Motran Receive 0.0005%
TLN1081A U51LLTB Motran Receive 0.0005%
TLN1081A B61LPB Motrac Base Sta Receive 0.0005%
TLN1081A B71LPB Motrac Base Sta Receive 0.0005%
TLN1081A B91LPB Motrac Base Sta Receive 0.0005%
TLN1082A,B U41BBA Mocom-70 Transmit 0.0005%
TLN1082A,B U61BBA Mocom-70 Transmit 0.0005%
TLN1082A,B U71BBA Mocom-70 Transmit 0.0005%
TLN1082A U51BBN Mocom-70 Transmit 0.0005%
TLN1082A,B C71LHB Motrac Compa Ba Transmit 0.0005%
TLN1082A U41LHT Motrac Transmit 0.0005%
TLN1082A U51LHT Motrac Transmit 0.0005%
TLN1082A U71LHT Motrac Transmit 0.0005%
TLN1082A U41LLTB Motran Transmit 0.0005%
TLN1082A U51LLTB Motran Transmit 0.0005%
TLN1082A B61LPB Motrac Base Sta Transmit 0.0005%
TLN1082A B71LPB Motrac Base Sta Transmit 0.0005%
TLN1082A B91LPB Motrac Base Sta Transmit 0.0005%
TLN1085A B61LPB Motrac Base Sta Receive 0.0005%
TLN1085A B71LPB Motrac Base Sta Receive 0.0005%
TLN1085A B91LPB Motrac Base Sta Receive 0.0005%
Note: TLN1085A Channel Element is used in the second receiver of
two receiver stations - late model stations - IF = 2.54 MHz
TLN1086A C71LHB Motrac Compa Ba Receive 0.0002%
TLN1086A U41LHT Motrac Receive 0.0002%
TLN1086A U51LHT Motrac Receive 0.0002%
TLN1086A U71LHT Motrac Receive 0.0002%
TLN1086A B61LPB Motrac Base Sta Receive 0.0002%
TLN1086A B71LPB Motrac Base Sta Receive 0.0002%
TLN1086A B91LPB Motrac Base Sta Receive 0.0002%
TLN1087A C71LHB Motrac Compa Ba Transmit 0.0002%
TLN1087A U41LHT Motrac Transmit 0.0002%
TLN1087A U51LHT Motrac Transmit 0.0002%
TLN1087A U71LHT Motrac Transmit 0.0002%
TLN1087A U41LLT Motran Transmit 0.0002%
TLN1087A U51LLT Motran Transmit 0.0002%
TLN1087A B61LPB Motrac Base Sta Transmit 0.0002%
TLN1087A B71LPB Motrac Base Sta Transmit 0.0002%
TLN1087A B91LPB Motrac Base Sta Transmit 0.0002%
TLN1096A U41LLTB Motran Receive 0.0002%
TLN1096A U51LLTB Motran Receive 0.0002%
TLN1113A U41LLTA Motran Receive 1 Freq 0.0002%
TLN1113A U51LLTA Motran Receive 1 Freq 0.0002%
TLN1114A U41LLTA Motran Receive 2 Freq 0.0002%
TLN1114A U51LLTA Motran Receive 2 Freq 0.0002%
TLN1115A U41LLTA Motran Transmit 1 Freq 0.0002%
TLN1115A U51LLTA Motran Transmit 1 Freq 0.0002%
TLN1116A U41LLTA Motran Transmit 2 Freq 0.0002%
TLN1116A U51LLTA Motran Transmit 2 Freq 0.0002%
*Number of channels refers to the number of specific different
crystal & oscillator circuits in the Channel Element - applies to
the early Channel Elements only. The later radios Channel Elements
were all only one channel each. If there is no specified number of
channels listed per line, it is to be assumed to be a 1 frequency
Channel Element only.
Everything above is taken directly from a factory manual ... my
typos not with standing ... :(
Also, the file I have is about 1200 lines so far for listing by
Channel Element number.
It does not include the listings by Base / Repeater / Mobile / other
station model numbers - which is another file.
I made the study last winter ... this winter I hope to complete the
project - I probably have another 5-600 manuals to get out, study and
enter the information. Will cover all radios that I can identify and
have manuals for - from 25 MHz thru 960 MHz ... and possibly above.
(I have 20 four drawer file cabinets with General Electric, Motorola,
RCA and other manufacturers manuals.)
> I can tell you with great certainty that the UHF motran used a
> different channel element than the UHF motrac in BOTH transmit &
> receive.
The UHF Motrac Receiver in the LHT models use either the TLN1081A,B
(0.0005%) or the TLN1086A (0.0002%)
The UHF Motrac Transmitter in both LHT and MHT both take the same
Channel Elements be it the TLN1083A,B (0.0005%), TLN1087A (0.0002%)
or the two piece version (0.0005%).
The UHF Motran uses the 'S' exciter TLN1146A (0.0005%) or the
TLN1190A (0.0002%) or the two piece version (0.0005%)
The UHF Motrac MHT Series and UHF Motran MST Series receivers are
identical and use the same Channel Element Series ... both types ...
the AFC and non-AFC types.
Further discussion may be here in the future - similar to the above
info for the low band radios ... but is far more extensive.
> But other than the transmitters & the UHF motran, all the motrac/motran
> receivers used the same elements.
True, for the most part - unless you have one of the very early
Motrans where there is a one or two oscillator Channel Element -
remember those? (Both low and high band.)
I hope the above information helps.
Neil McKie - WA6KLA
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