a wery few digital tunas - like a revox b261 that i own - allow tuning in increments as small as 0.125mhz - ie: ewe can tune to 89.3125, or 89.2875, instead of yust 89.3. a tuna like this could be used in yurp, if the woltage is correct.
re: ikarus' comment that analogue tunas are expensive - *good* tunas are expensive, whether analog or digital. but, if ya keep yer eyes peeled, ewe can nab an excellent tuna for <$500usd...