write_sa2400
write_sa2400(dev, 7, txpw);
write_sa2400(dev, 0, chan);
write_sa2400(dev, 1, 0xbb50);
write_sa2400(dev, 2, 0x80);
write_sa2400(dev, 3, 0);
write_sa2400(dev, 4, 0);
write_sa2400(dev, 0, sa2400_chan[0]);
write_sa2400(dev, 1, 0xbb50);
write_sa2400(dev, 2, 0x80);
write_sa2400(dev, 3, 0);
write_sa2400(dev, 4, 0x19340 | firdac);
write_sa2400(dev, 5, 0x1dfb | (SA2400_MAX_SENS - 54) << 15);
write_sa2400(dev, 4, 0x19348 | firdac); /* calibrate VCO */
write_sa2400(dev, 4, 0x1938c); /*???*/
write_sa2400(dev, 4, 0x19340 | firdac);
write_sa2400(dev, 0, sa2400_chan[0]);
write_sa2400(dev, 1, 0xbb50);
write_sa2400(dev, 2, 0x80);
write_sa2400(dev, 3, 0);
write_sa2400(dev, 4, 0x19344 | firdac); /* calibrate filter */
write_sa2400(dev, 6, 0x13ff | (1 << 23)); /* MANRX */
write_sa2400(dev, 8, 0); /* VCO */
write_sa2400(dev, 4, 0x19341); /* calibrates DC */
write_sa2400(dev, 4, 0x19345);
write_sa2400(dev, 4, 0x19341 | firdac); /* RTX MODE */