you have forgotten too add a choke stub to the power rail my pal
you also need a choke stub on the audio rail vc control rail
these are crytical componets
dont rely on just capacitors or resistors to decouple the supply
rail
and i think this circuit will self oscillate unless you use ceramic pcb {copper clad ceramic materials...etch as usual} and also
change the association of the low value caps
the secret with shf is too keep the cap values too as high as possible on the gnd {earthy} side of the circuit as a whole
so 100pf or 47 pf is better than 1.8pf for stability
or you need too add a compound too fix the hysterisis
the secret with these effects is good grounding
you must have a thru every 20th of a wavelenth or beter resolution
for any goundplane you must place a thru every 8 th of a wavelenth or better
you must also enclose the whole oscillator in an rf cage {much like high freq xtal} too improve the stablilty
also using hatched groundplane for big patches of gnd breaks down the coupling capacitances of the pcb its self
reducing coupling between parts of the circuit that shouldnt couple so tight
so hatching stuff like any area bigger than the square of 1% of a wavelengh... or similar cross association worked out by the cap per cm square of the pcb of substraight you use is best
for a clean job and tight responce
add a filter too the supply locking the volts too 3.3 or 5.7 or something
your of oscilator regulation isnt there???????
for a vco??? lol
also you need too use silver solder not lead tin and also a good quality high silver content keeping its aplication very tight {more like a weld but very neet very little solder is needed so wet any contact first the solder as is dont reaply more.....
clean very well with a good solvent only once to remove flux {very important}
then leave to dry before you power
should be better than surface mount grade for any prototype i would use 62lead 10tin 26.3{silver} 1.3{bismith} 2.4 gold
or buy a very high grade bar of smd solder {or steel from work if you have access}
realy circuits here are hyper crytical
even one drop of moisture is bad so best too pack your unit with silica bags
too absorbe any vapors
mount the caps as close as possible too the transistor legs and keep these as short a possile {even measure these to the non resonant lenght so it wont cause sparadic oscilations too start}
use a good quality lengh of cable as a dummy load
coiled up with a load at the end 47R not 50R
this way you get a more balanced tune {esp if several stages are planed}
you need very much to plan for hysterisis
this is very very tender an osc at this freq
so mechanical stablity is a must
use another stage of amplification before trying to read this osc you design
or my pal your intruments will colapse the field and it will ping ping ping your pll however decoupled a probe
the capacitance and amount of rf you will achives with no choke stub will maybe poor and the transistor will thermal runaway from the reactance of the low value cap and gnd varience.... thru self oscillations