If you remove W1 which is a green wire located on the "Control Unit"
board which resides in the front of the rig, you will get transmit from
142-152 MHz and from 420-450 MHz.

  To go one step further, lift (or remove) D4 which is located near W1.
This will let the radio be capable of transmitting anywhere it can hear.
(136-174 & 335-512)  The rig is capable of transmitting, it however is
limited by the VCO's.  Which is to say it will transmit through just
about the entire 2m. range and about a 50 MHz spread on UHF.  The VCO's
are adjustable (transmit & receive).  If you are interested in receiving
(or transmitting) out of band (on UHF especially) I recomend you get a
service manual.  It is well worth the price.

73,
   Ray   WA6TKV @ N6IIU