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Subject: Here is HTX-242 Mod 136-174 RX/TX



NOTICE: use at your own risk



Posted by Jeff Parrish (KB9GXK) on September 11, 1998 at 00:16:12:



I didn't try it quite yet, but here's what I found to expand the RX/TX to

136-174MHz

-------------------------------------------------------



Special NOTICE:This is for the HAMS who say radio shack radio's are "can't

be modified, because the FCC was real strict with Radio Shack", or buy a real

radio so that you can modify it. That is a bunch of bull.



Mod:Expands TX from 143-149mhz to 136-174mhz



Tools Required:Phillips Screwdriver, Mini screwdriver, Soldering Iron (Fine

tip) , NeedleNose Pliers



Process:



1. Remove Screws on bottom and top 2. Take the Bottom and Top off the Radio

3. Unplug Speaker from top of the radio and remove the dials from the face

plate 4. Unscrew the screws on the top and bottom of the face plate. 5.

CAREFULLY:remove the face plate from the radio 6. Remove the bolts and

washers (little rings) from the dials (countersunk into the dials). 7.

CAREFULLY:remove the LCD and plastic around it by pulling gentle and

wiggling it a little being careful not to bend the LCD pins. 8. Remove the

screws holding down the PCB from the cases 9. CAREFULLY:(Plug in type PCB)

remove the PCB from the radio and place the VFO tuning dial face down and to

your left. 10. There will be two blue jumper mounts on the PCB. Remove the 1

closest to the 2 black raised chips that are closest to the VFO tuning dial

(this jumper should be near the middle of the board) The other jumper makes

the transmitter do 143-144 (military) and it is near the side. 11. Put all

the parts back together and blamo you have 136-174mhz RX/TX



Notes:If you do it right you won't even loose your memories. This mod took me

about 30 minutes to complete and my radio is working fine. However

I'm sure this voids the warranty and the service contracts so you may not want

to do it for that reason alone. I checked the radio out (with a frequency

counter) on several frequencies and it is performing well. This mod requires a

little skill but most people that are hams could do this mod. This mod was

given to me by a fellow North Carolinian

KC4VYY , and I just put it in a simpler form. I wanted to thank him.



Date: Thu, 28 Jan 1999 22:15:45 -0800

From: Hugh Henderson 

SOURCE: The QRZ Windows Ham Radio CDROM



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