User's Manual

CONTENT
1. INTRODUCTION ................................................................................................................................................................ 2
2. TECHNICAL SPECIFICATIONS.................................................................................................................................... 3
A.
GENERAL ......................................................................................................................................................................... 3
B.
TRANSMITTER................................................................................................................................................................ 3
C. RECEIVER......................................................................................................................................................................... 3
3. THERORY OF OPERATION ........................................................................................................................................... 3
INTRODUCTION.................................................................................................................................................................. 3
CIRCUIT
DESCRIPTIONS................................................................................................................................................... 4
1)
PHASE-LOCK LOOP (PLL) CIRCUIT ........................................................................................................................... 4
2)
TRANSMITTER ................................................................................................................................................................ 4
3) RECEIVER......................................................................................................................................................................... 4
OPERATION.......................................................................................................................................................................... 5
4. ALIGNMENT PROCEDURE............................................................................................................................................ 8
M
EASUREMENT CONDITION.................................................................................................................................................... 8
T
RANSMITTER ADJUSTMENT................................................................................................................................................... 9
R
ECEIVER ADJUSTMENT.......................................................................................................................................................... 8
5. OPERATIONAL TEST ....................................................................................................................................................... 9
1. INTRODUCTION
GMRS X1 is FM handhold transceiver operating 462MHz. With the output power of 2 W ERP, the radio is
capable of communicating up to 5 miles.
In addition to its small size, GMRS X1 offers many advanced features that could only be found in the most
expensive GMRS.
Like other HJC quality products, GMRS X1 carries a 12 months limited warranty. Please call our technical or
customer service representatives at +Tel [phone] when you need help, or visit us on the Web
www.chatterboxusa.com
.