TM732.1 Reply-To: wa2ise@n2dsy.nj.usa.na copied from the internet: Newsgroups: rec.radio.amateur.misc Summary: All Band Mods Resistors TX Ranges STD Has M 22 21 20 19 VHF UHF SHIFT 800 Remarks K1 0 1 0 1 144-148 438-450 .6/5 Std. US Version K2 1 1 0 1 144-148 438-450 .6/5 x US After green wire cut K3 1 0 0 1 142-152 420-450 .6/5 x MARS/CAP Mod K4 0 1 1 0 136-174 410-470 .6/5 x All Band Mod M1 0 0 0 0 144-148 430-440 .6/5 Generic Int'l Model M2 0 1 0 0 136-174 410-470 .6/5 x All Band Int'l (430 default) E1 0 0 1 0 144-146 430-440 .6/(1.6) Std Europe Model E2 1 0 1 0 136-174 432-438 .6/1.6 x Denmark E3 0 0 1 1 144-146 410-470 .6/(1.6) x E4 1 1 0 0 144-146 430-440 .6/(1.6) x E5 1 0 1 1 136-174 410-470 .6/(1.6) x Europe All Band C1 0 0 0 1 136-174 340-512 5.7/10 China Model 0 = Resistor IN 1 = Resistor OUT Notes: 1. All "resistors" O ohms (wire jumper OK) 2. Green wire is equivalent to R22 - present in K1 model 3. 0 = resistor present, 1 = resistor absent 4. Standard shifts in MHz VHF/UHF. Those listed as (1.6) also do -7.6 5. Codes not listed are used in Japan version, special CPU required 6. M column is factory MODE number 7. K2 Mod includes 410-770 RECEIVE and enables CLONING features To perform any of these mods, remove the back cover from the remote head unit. Resistor numbers clearly marked on board along top. 800 MHZ RECEIVE To enable 800 receive, switch to UHF VFO (not available in UxU), press and hold MHZ button until 800.000 appears. A capacitor must be added (C348) to enable the 800 receiver. To add, remove UHF transciever board and next to the pad of pin 1 of IC-202 (on the foil side), add a 2.2 pF chip capacitor. A wire can be used instead of the capacitor but sensitivity will be reduced. (See schematic diagram for reason). ==================================================================== Note: I haven't tried or verified this, proceed at your own risk. WA2ISE dasher:/u/rfc/mods(278):