Looks the wrong way round in the schematic you show. They appear to be PIN diodes used to isolate the receiver when in transmit mode, if the line approaching from the bottom right is the PA supply, D8 will be forward biased across the supply voltage and short it out.
Brian.
The schematic shows it the wrong way around but on the board it should be connected with it's cathode (striped end) toward L3. The arrow in a diode symbol always points to the cathode end.
Brian.
Could you explain which tuned line you mentioned?The tuned line between them stops the receiver PIN also shorting out the transmission.
Brian.
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