[Drake] TA4 adaptor and the T4XC

[Garey Barrell]

Joe -

All the Drake 4 Series units are interchangeable. 

The only thing I can think of is that the SPR-4/TA-4 combo does NOT have 
a Carrier Osc connection which is used to "phase lock" the Carrier Osc 
in the transmitter and the 3rd Mixer LO in the receiver together for 
transceive stability.  The earlier 4 Series units relied on luck, 
superseded by color coded crystals in the late "A" and "B" units, to 
maintain the receiver and transmitter on exactly the same frequency when 
transceiving with one PTO controlling.

So....  Unless you plan to operate  _SSB_  transceive, this situation is 
of NO consequence.  For CW transceive, you would just perform the 
"transceive align" adjustment and forget it.

73, Garey - K4OAH
Atlanta

Drake 2-B, 4-B & C-Line Service Supplement CDs
<www.k4oah.com>



Joseph Trombino Jr wrote:
> Wondering if the TA4 Transceive Adaptor and SPR4 receiver can be used 
> with the T4XC??
>
> My SPR4 manual talks about the TA4 and the SPR4 working with the 
> T4/T4X/T4XB transmitters but nothing about the T4XC.  Could this be 
> due to the SPR4 predating the T4XC???
>
> Thanks for any info.
>
>                                73, Joe W2KJ
>
>