Custom Products from Masters Communications

Assembly:
If you purchased our kit, refer to the parts list (below) and make sure you have all of the components you need to build the kit. All of the components are supplied with the kit, and while we make every effort to be sure we didn't omit any components, it can happen. If you are missing anything, or ruin something, just contact us.

Click here for Parts List.

Assembly can be done by personal choice, but you may find it easier to install the shortest components first, building from shortest to tallest, and finish with the connectors on the ends.

Install all resistors. Some resistors color bands may be hard to make out. If in doubt, use an ohm meter to verify the value before soldering it in place.

Install the diodes and shortest capacitors, observing polarity on all diodes and the polarized capacitors! The square pads are the banded end of the diodes and the + of the electrolytic capacitors. Small capacitors are identified as follows: "47" = 47pF, "103" = 0.01uF, "104" = 0.1uF, in other words the first two digits are the value and the third digit (if present) is the number of zeros you add to determine the value.

Install the crystal with its plastic spacer.

Then, install the 3 LEDs (short lead to the square hole).

Install the IC sockets, and potentiometer.

Next, install the transistors (flat to flat on silkscreen).

Inistall the two, three and four pin headers.

Now install the relay. Orientation doesn't matter.

Next, install the larger capacitors. If necessary - bend the leads of these straight so they sit down against the board.

Then, finish by installing the DB9F and USB "B" socket connector.

Put the header shorts over the jumpers and headers, and install the 8 pin ICs.

Information on the CM119A.
Click here to download a manual for the C-Media CM119A.

Information on the CM119 (NOT "A").
Click here to download a manual for the C-Media CM119 - some prototypes used this version of the chip.

Email Kevin Custer for support.
 

Custom cables available from URI Cables. They can build a custom cable for the RA-35M for many radios.

Third Party Compatible Projects:
MABEL is an interface and software that allows analog control of the Yaesu DR-1X repeater and access to the AllStar VOIP network with the Raspberry Pi3 and AllStar Asterisk. (Offsite Link)

Product of Masters Communications, all rights reserved.
Specifications may change without notice.
Images property of Kevin Custer - Masters Communications.
Board layout by Kevin Custer - W3KKC
HTML November 11, 2024, W3KKC All Rights Reserved!