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CAUTION:  If you disconnect power from the receiver for about 1 hour, all
          information stored in memory will be lost.  We recommend you
          keep the batteries installed when you use an AC or DC adapter to
          protect the memory from a power loss.

Follow these steps to store a frequency in memory.

1.  Follow Steps 1 through 4 in "Basic Operation."

NOTE:  Use manual, search, or direct access tuning to tune to the
       station's frequency you want to store.

2.  Press STORE.  MEMORY flashes.

3.  While MEMORY flashes, press a number button to select the memory
    location.

NOTE:  If you do not press a number within about 10 seconds, MEMORY stops
       flashing and you must repeat steps 2 and 3.

USING THE ANTENNA

Use the following guidelines to adjust your receiver's antenna.

BAND

Wavelength

Antenna adjustments

FM

Fully extend and rotate the telescoping antenna.

AM

Rotate the receiver for best reception, (AM uses
an internal antenna.)

SW

13-41 meters

Fully extend the telescoping antenna vertically.

SW

49-120 meters

Fully extend the telescoping antenna and/or
rotate the receiver for best reception.  (Both
internal and external telescoping antennas pick
up signals.)

NOTE:  For better AM and SW reception, you can connect an external
       antenna, such as Cat. No. 278-1374, to the telescoping antenna.

(ALL-02/27/95)

Summary of Contents for DX 275

Page 1: ...Radio Shack DX 375 Shortwave Radio User Manual...

Page 2: ...ne to your favorite stations Direct Access Tuning directly tunes to the desired frequency when you enter the frequency on the keypad Search Tuning searches up or down the band for the next available s...

Page 3: ...ents you from accidentally turning the receiver on or off changing the band or frequency or changing other front panel controls You an still adjust VOLUME TONE and SENSITIVITY To lock the controls set...

Page 4: ...ace the batteries be sure to turn off the receiver s power Follow these steps to install the batteries 1 Push the cover in the direction of the arrow and remove it from the battery compartment 2 Remov...

Page 5: ...s into the receiver s 1 8 inch jack This disconnects the receiver s internal speaker Your local Radio Shack store offers a wide selection of stereo headphones with the required 1 8 inch plug Listening...

Page 6: ...rt the barrel plug into the receiver s DC 3V jack This disconnects the internal batteries 4 Plug the adapter into a standard AC outlet VEHICLE BATTERY POWER To power your receiver from a vehicle s bat...

Page 7: ...er s orange barrel plug to the adapter s cord with TIP set to NEG 3 Insert the adapter s barrel plug into the receiver s DC 3V jack this disconnects the internal batteries 4 Plug the other end of the...

Page 8: ...AM or the 12 band Shortwave SW band of operation Press BAND until the desired band FM AM or SW appears on the display If you select FM FM MHz and STEREO when you tune to a stereo broadcast appear on t...

Page 9: ...eiver accepts it as 1450 If you make a mistake in entering a frequency ERROR flashes on the display Enter the frequency again Preset Tuning To tune directly to a station that is entered into memory si...

Page 10: ...ocation NOTE If you do not press a number within about 10 seconds MEMORY stops flashing and you must repeat steps 2 and 3 USING THE ANTENNA Use the following guidelines to adjust your receiver s anten...

Page 11: ...t to hear these broadcasts between 6 00 PM and midnight your time NOTE European stations often list a frequency by giving its wavelength For example the 19 meter band refers to the range of frequencie...

Page 12: ...uch as giving the accurate time verifying frequency calibration and gaining information on radio propagation conditions Station Country Frequency WWV and WWVH Fort Collins Colorado and Kauai Hawaii 2...

Page 13: ...nd cause the receiver to work improperly Keep the receiver away from dust and dirt which can cause premature wear of parts Wipe the receiver with a damp cloth occasionally to keep the product looking...

Page 14: ...r s batteries Connect the adapter to AC or DC power source No sound Batteries are weak or dead Replace the batteries Volume is set too low Adjust volume as desired Headphones are plugged into the rece...

Page 15: ...Tuning Indicator On Sensitivity 1000 kHz V m 79 220 DX LOCAL Sensitivity Ratio 1000 kHz dB 26 16 36 S N Ratio 5mV m Input 1000 kHz dB 45 40 Image Rejection 1450 kHz dB 40 34 IF Rejection 600 kHz dB 5...

Page 16: ...Drop Out 2 4 MHz V 1 85 2 1 DC DC Conv OSC Frequency MHz 2 77 Tuning Indicator On Sensitivity 4 0 MHz V m 100 224 Tuning Step Frequency kHz 5 5 SW2 Band Condition Unit Nominal Limit Frequency Range MH...

Page 17: ...1 MHz 15 Tone Control Effect at 10 kHz 98 1 MHz kHz 13 9 17 Image Rejection Ratio 106 1 MHz dB 34 22 I F Rejection Ratio 90 1 MHz dB 60 50 Spurious Response 98 1 MHz dB 74 50 Capture Ratio 100 V Input...

Page 18: ...L RF SW2 CA4017 10565315 SILVER CAN W BLACK SLUG CA4017 L12 10565331 COIL OSC AM CA4019 10565331 SILVER CAN W BLACK SLUG CA4019 L13 10565349 COIL OSC SW1 CA4020 L14 10565356 COIL OSC SW2 CA4021 105653...

Page 19: ...C 1P S0200 11055324 SLEEP POWER S0200 S7 S8 S9 S10 S11 S12 11055332 SWITCH TACT 1C 1P S0201 S13 S14 S15 S16 S17 11055332 PRESET DIRECT TUNING S0201 S18 S19 S20 S21 S22 11055332 BAND ENTER UP DOWN TUNI...

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