Pay closer attention to the board...
It's a preserved throwback to the days of Analog...this is the results of converting the typical PC66/68 or 76/78 into the SMD version of the Discrete...
The 7310 - The Youda' Years...
View attachment 41301
But seriously -- this is what SMD has shrunk down to...
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The PLL is still "controlled" by the main CPU which holds the channel outlay, and Microcode (codec) to boot everything. This is a programmable unit that can be "programmed" to the various regions -
So if it can use AM - this chassis will use (broadcast/Receive) it.
This is not the 687 or 787 - which used a lot of Integrated design - Squelch, AGC, Mic amp - all on a chip array design. That was Uniden's "Upgrade" which followed in the footsteps of the 980 series - and only were sold for a couple of years at the most. Anyone whom owns one, European or American - some got IRF520's others got something yet to be discovered...(I got stung...)
Look more closely at this new one - it also with be sadly - another copy of the C29 and C25...This is a conversion of a discrete biasing design to SMD work - so they did try to preserve some efforts of the Analog days - just no IF coil coupling - all capacitor coupled design - adding to the "white noise and noisy IF strip" problems inherited from using Xtal resonators - sure they are Xtals, but pass everything and the distortion products within the passband - you don't have the luxury of "offset" to overcome some of the peaking and tuning issues you'd experience in some radios that had IF coil coupled designs where the Transistors' impedance and the coils turning range interacted (L6 - Galaxy) (PC-66 1st IF and TX Strip) - allowed many users to over peak the section causing RX to TX issues - this simply will push that "white noise" in with it - no engineering feat here - just copy and inserted caps where coils should be...Took away the coil coupling to save money...
Our loss...
Sadly they did away with much of the older "Analog" AGC tracking - no caps in the strip to be found. - unless Nomads got more on it, there's little help in offering any RX adjustments...
It's the only radio I have seen where they've taken the older discrete and simply kept the design to SMD and left the rest alone - however the IF and all it's drawbacks - this will be another "White noise" candidate.
