Radio Shack HTX-420 Marine Radio User Manual


 
19-1108
04A02
Printed in China
RadioShack Corporation
Fort Worth, Texas 76102
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If your transceiver is not performing as it
should, take it to your local RadioShack store
for assistance. Modifying or tampering with
the transceiver’s internal components can
cause a malfunction and might invalidate its
warranty and void your FCC authorization to
operate it.
4'5'66+0)"6*'"64#05%'+8'4
If the transceiver’s display locks up or the
transceiver does not work properly after you
turn it on, you might need to reset it.
.
To reset the transceiver, turn it off then hold
down
F
+
6
and turn it on again. All the display
indicators appear to confirm the reset
operation. Release
F
+
6
.
52'%+(+%#6+105
GENERAL
Frequency:
2-Meter....................................................................................... TX: 144–148 MHz, RX: 137–174 MHz
70-cm......................................................................................... TX: 438–450 MHz, RX: 420–512 MHz
Air Band............................................................................................................ 108.000-136.9875 MHz
Weather Band ................................................................................................................................ CH1–CH7
Frequency Generation .......................................................................................................... PLL Synthesizer
Frequency Stability ..........................................................................................................................
±
10 ppm
Operating Temperature..................................................................................... 14° to 140° F (–10° to 60° C)
Operating Voltage................................................................................................................ DC 5 V to 13.8 V
Modulation ............................................................................................................................................... F3E
Impedance .......................................................................................................................................... 50 ohm
Dimension (HWD)................................................................................. 4
1
/
2
× 2
2
/
5
× 1
1
/
5
(122 × 61 × 31 mm)
Weight (w/rechargeable battery)............................................................................................ 11.46 oz (325g)
RECEIVER
Circuit Type............................................................................................. Dual Conversion, Superheterodyne
IF Frequency:
1st IF.......................................................................................................................................... 45 MHz
2nd IF........................................................................................................................................ 450 kHz
Sensitivity................................................................................................................... 0.2
µ
V For 12dB Sinad
Distortion.............................................................................................................................................5% Max
S/N Ratio........................................................................................................................................ 34 dB Min.
Audio Output @ 10% THD.................................................................................................. 300 mW at 8 ohm
TRANSMITTER
Power Output................................................................................................. 3 W, DC 7.2 V 4 W, DC 13.8 V
Distortion (nominal).................................................................................................................................... 3%
Deviation....................................................................................................................................
±
5 kHz Max.
S/N Ratio................................................................................................................................................ 32 dB
Current Drain ............................................................................ 1200 mA, DC 7.2 V 1500 mA, DC 13.8 V
±
±±
±
Specifications are typical; individual units might vary. Specifications are subject to change and improvement
without notice.
.
"%#76+10"
.
This procedure clears all the information you
have programmed into the transceiver. Before
you reset the transceiver, try turning it off then on
again to see if it begins working properly.
±
±±
±
"016'"
±
±±
±
"
The software protocol and construction for a PC
interface cable is available in the 19-1108
Service Manual. You can order a service
manual through your local RadioShack store.
Limited One-Year Warranty
This product is warranted by RadioShack against manufacturing defects in material and workmanship under normal use for one (1) year from the date of purchase from RadioShack company-owned stores and au-
thorized RadioShack franchisees and dealers. EXCEPT AS PROVIDED HEREIN, RadioShack MAKES NO EXPRESS WARRANTIES AND ANY IMPLIED WARRANTIES, INCLUDING THOSE OF MERCHANT-
ABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED IN DURATION TO THE DURATION OF THE WRITTEN LIMITED WARRANTIES CONTAINED HEREIN. EXCEPT AS PROVIDED
HEREIN, RadioShack SHALL HAVE NO LIABILITY OR RESPONSIBILITY TO CUSTOMER OR ANY OTHER PERSON OR ENTITY WITH RESPECT TO ANY LIABILITY, LOSS OR DAMAGE CAUSED DI-
RECTLY OR INDIRECTLY BY USE OR PERFORMANCE OF THE PRODUCT OR ARISING OUT OF ANY BREACH OF THIS WARRANTY, INCLUDING, BUT NOT LIMITED TO, ANY DAMAGES RESULTING
FROM INCONVENIENCE, LOSS OF TIME, DATA, PROPERTY, REVENUE, OR PROFIT OR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, EVEN IF RadioShack HAS BEEN AD-
VISED OF THE POSSIBILITY OF SUCH DAMAGES.
Some states do not allow limitations on how long an implied warranty lasts or the exclusion or limitation of incidental or consequential damages, so the above limitations or exclusions may not apply to you.
In the event of a product defect during the warranty period, take the product and the RadioShack sales receipt as proof of purchase date to any RadioShack store. RadioShack will, at its option, unless otherwise
provided by law: (a) correct the defect by product repair without charge for parts and labor; (b) replace the product with one of the same or similar design; or (c) refund the purchase price. All replaced parts and
products, and products on which a refund is made, become the property of RadioShack. New or reconditioned parts and products may be used in the performance of warranty service. Repaired or replaced parts
and products are warranted for the remainder of the original warranty period. You will be charged for repair or replacement of the product made after the expiration of the warranty period.
This warranty does not cover: (a) damage or failure caused by or attributable to acts of God, abuse, accident, misuse, improper or abnormal usage, failure to follow instructions, improper installation or mainte-
nance, alteration, lightning or other incidence of excess voltage or current; (b) any repairs other than those provided by a RadioShack Authorized Service Facility; (c) consumables such as fuses or batteries; (d)
cosmetic damage; (e) transportation, shipping or insurance costs; or (f) costs of product removal, installation, set-up service adjustment or reinstallation.
This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
RadioShack Customer Relations, 200 Taylor Street, 6th Floor, Fort Worth, TX 76102
12/99