DRAKE TR270 Owner'S Manual Download Page 50

Quick Reference Guide            45

Most front panel pushbuttons perform two functions.  The

second function requires that the 

NUM

*

 button be

pressed first, and then the desired second function
button pressed within three seconds.  The symbol 

3

indicates that the button is to be pressed within three
seconds.

Enter SETUP (page 14) ---------------------------------------------------

Assign antenna inputs (page 16) -----------------------------------

Select Transceiver ‘A’
or Receiver ‘B’ (page 7) -----------------------------------------------

Select VFO (page 7) -----------------------------------------------------

Adjust Frequency (pages 6, 7, 13) ----------------------------------

Set tuning wheel step size (pages 13, 15) ------------------------

Select Mode (page 7) --------------------------------------------------

Select Priority (page 7) -------------------------------------------------

Set Priority Channel Action (page 14) ----------------------------

Set transmit power (page 18) ----------------------------------------

Select relative transmit power (page 7) --------------------------

Set time-out-timer for transmit (page 16) ------------------------

Select IF Bandwidth for Receiver ‘B’ (page 7) -----------------

Lock (Unlock) Controls (page 7) ------------------------------------

Set LCD backlight intensity (page 19) -----------------------------

Set Audible Beep On or Off (page 16) ---------------------------

Set Transmit Microphone audio filter On or Off (page 19) -

Press and hold 

SETUP

D

.

Press and hold 

SETUP

D

. Rotate tuning wheel to #15.  Press

/

 to set 0, 1, 2, or 3.

Press 

A / B

A

.

Press 

2

VFO

 .

Turn tuning wheel, Press 

/

  buttons, or Press 

NUM

*

3

numeric buttons.

‘A’: Press and hold 

SETUP

D

. Rotate tuning wheel to #04.

Press 

/

  to set 5, 10, 15, 20 or 25 kHz.

‘B’: Press and hold 

SETUP

D

. Rotate tuning wheel to #05.

Press 

/

  to set 5, 10, 12.5, 15, 20, or 25 kHz.

‘A’: Press 

MODE

B

 to select VOICE, DATA, or Standby.

‘B’: Press 

MODE

B

 to select VOICE, DATA, WXSAT, or Standby.

Press 

1

PRIO

 for selected receiver frequency to be priority.

Press and hold 

1

PRIO

 to initiate priority watch (PW lights).

Press and hold 

SETUP

D

. Rotate tuning wheel to #02.  Press

/

  to set 0 or 1.

Press and hold 

SETUP

D

. Rotate tuning wheel to #50 (Low),

#51 (Medium), or #52 (High).  Press 

/

  to set level.

Press 

P. OUT

C

.

Press and hold 

SETUP

D

.  Rotate tuning wheel to #14. Press

/

  to set 0 (no time out), 1, 2, 3, or 10 minutes.

‘B’ only: Press 

9

B   BW

.

Press 

0

LOCK

 for selected transceiver ‘A’ / receiver ‘B’.

Press and hold 

SETUP

D

.  Rotate tuning wheel to #56.

Press 

/

  to set intensity.

Press and hold 

SETUP

D

.  Rotate tuning wheel to #12.  Press

/

  to set 1 (beep on) or 0 (beep off).

Press and hold 

SETUP

D

.  Rotate tuning wheel to #58.  Press

/

  to set 1 (filter on) or 0 (filter off).

Summary of Contents for TR270

Page 1: ...MODE B A SQUELCH 1 2 3 4 5 6 8 9 7 0 REV SAT B BW LOCK STORE CTS RPT DTMF PRIO VFO MEM A B A MODE B P OUT C SETUP D NUM VOLUME HOLD TO SCAN TNC STATUS LMH NUM TEMP SCAN DTMF TOT DEC ENC DATA VOICE SA...

Page 2: ...ear water for example near a bathtub wash bowl kitchen sink laundry tub in a wet basement or near a swimming pool and the like 8 Accessories Do not place this product on an unstable cart stand tripod...

Page 3: ...product to its normal operation e If the product has been dropped or the cabinet has been damaged f When the product exhibits a distinct change in performance this indicates a need for service 19 Rep...

Page 4: ...Controller Fax Operation With The Optional DEMOD270 Suggested References Glossary of Terms Quick Reference Guide Service Warranty Important Safeguards Table of Contents Specifications and Accessories...

Page 5: ...8 MHz 12 kHz min 6 dB 75 dB min 20 kHz 80 dB min 25 kHz 80 dB min 0 10 V 80 dB min 80 dB min 2W into 8 Ohms less than 5 distortion 144 00 148 00MHz 142 150MHzreducedspecifications 1 10 25 Watts 144 to...

Page 6: ...PRIO VFO MEM A B A MODE B P OUT C SETUP D NUM VOLUME HOLD TO SCAN TNC STATUS LMH NUM TEMP SCAN DTMF TOT DEC ENC DATA VOICE SAT WXSAT DATA VOICE LOCKED SETUP W N XMT DCD CON MAIL REV TX STA VFO 1 VFO 2...

Page 7: ...ES POTENTIALLY LETHAL VOLTAGES IF THE EQUIPMENT IS POWERED FROM AN AC POWER SOURCE REFER SERVICING TO A QUALIFIED TECHNICIAN ONLY NOTE A magnetized screwdriver facilitates the removal and installation...

Page 8: ...i nal 115 VAC mains supply When connected to an appropriate power line outlet this cable grounds the instrument cabinet For operation of this unit on nominal 230 VAC mains supply use the proper powerc...

Page 9: ...vironment the transceiver includes an unfused external DC input connector This connector is located on the rear panel The transceiver will operate with a DC input voltage of 11 16 VDC Full high power...

Page 10: ...RECEIVE VHF UHF 50 TRANSMIT 144 148 MHz 25 WATTS MADE IN U S A BY R 8 E X T S P K R D E M O D Installation continued 5 ATTENTION LOCATE ANY RECEIVER ANTENNAS SOME DISTANCE AWAY FROM TRANSMITTER ANTENN...

Page 11: ...VFO The tuning wheel and the buttons are the primary tuning controls of the trans ceiver Clockwise rotation of the tuning wheel in creases frequency and counterclockwise rotation decreases frequency...

Page 12: ...or disable OFF the tone decod ing as required 9 B BW Press to select either 15 kHz or 40 kHz IF bandwidth for receiver B The 40 kHz bandwidth is normally used only for weather satellite FAX reception...

Page 13: ...cates that a valid data stream is present CON connect TNC is connected to a station STA status TNC is reporting its status MAIL Flashes to indicate that a message is waiting 10 LOCKED Indicator Lights...

Page 14: ...quency is in the other VFO 17 NUM Indicator When lit keypad is in the numeric entry mode 18 TEMP Indicator When lit maximum output power is being intentionally limited to avoid possible final amplifi...

Page 15: ...2 Meter range prior to transmitting This connector accepts a standard PL 259 plug 2 ANTENNA 2 This connector is the antenna input to Receiver B Attach a 50 Ohms nominal impedance coaxial feed line fro...

Page 16: ...z mains supply and is shipped with a cord assembly intended for 115 VAC mains supply Be certain of the mains supply voltage prior to connecting this unit For operation of this unit on a nominal 230 VA...

Page 17: ...handling 25 Watts transmit RF power An additional antenna can be connected to the ANTENNA 2 connector at this time also if desired 2 Please refer to FIGURE 7 and adjust the controls as shown Connect t...

Page 18: ...the lower frequency display is not shown Standby condition press the MODE B button to display VOICE in the lower center portion of the display Tune to the desired receive frequency by using one of sev...

Page 19: ...STA VFO 1 VFO 2 PW MEM RX RX VFO 1 VFO 2 PW MEM A B TR270 FM Transceiver POWER Press and hold the SETUP D button to display the SETUP menu SETUP SETUP MODE FUNCTION OPTION PARAMETER In numeric entry m...

Page 20: ...ion 1 FM demodulation SETUP Setup Menu continued 15 SETUP MODE NUMBER FUNCTION OPTION PARAMETER DESCRIPTION DISPLAY factory defaults shown Flow Control for RS232 Transmission and Reception Tuning Whee...

Page 21: ...s Enter frequency for example 144 0000 SETUP 16 Setup Menu continued SETUP MODE NUMBER FUNCTION DISPLAY factory defaults shown 0 or 1 SETUP 0 or 1 OPTION PARAMETER DESCRIPTION 0 1 2 or 3 Set audible b...

Page 22: ...T Endpoint for Range Scan Receiver B Program Memory Channel Number to Define STOP Endpoint for Range Scan OPTION PARAMETER DESCRIPTION 21 22 23 24 25 26 27 28 29 Enter frequency for example 148 0000 E...

Page 23: ...9 List 9 NOTE Power output is factory set as follows LOW 1 Watt nominal MEDIUM 10 Watts nominal HIGH 25 Watts nominal The parameters shown are for example only For each level Low Medium or High press...

Page 24: ...or off Set Receiver B subaudible tone filter on or off 00 SAT SCAN does not resume 01 1 Second before SAT SCAN resumes 99 99 Seconds before SAT SCAN resumes OPTION PARAMETER DESCRIPTION Press to set...

Page 25: ...ication Enter a 2 digit number 00 99 using the numeric buttons this operation automatically function shifts the buttons to the NUM mode to store the displayed frequency to the desired memory location...

Page 26: ...the buttons or by direct entry of a two digit memory channel number B To lock out a memory channel Press 0 LOCK The symbol lights adjacent to the memory channel number To unlock a memory channel Press...

Page 27: ...of Memory scan Example A VFO SCAN 1 Programmed in SETUP START frequency limit is lower than the programmed STOP frequency limit Example B MEMORY SCAN 1 Programmed in SETUP START memory channel number...

Page 28: ...ESUME or timeout TIME on the tuned frequency the scan will resume within the programmed in SETUP range limits Press and hold the 2 VFO button to start a VFO scan Press and hold the 3 MEM button to sta...

Page 29: ...select Receiver B 7 Press and hold the 3 MEM button to start the scan Press the buttons during scan to reverse the scan direction if desired 8 Press the 3 MEM 2 VFO or 1 PRIO button to exit the scan m...

Page 30: ...index number 0 9 to start the scan 8 Press the 3 MEM 2 VFO or 1 PRIO to exit the scan mode Scan Functions continued 25 SCAN VFO A VFO scan permits continuous tuning of frequencies between two program...

Page 31: ...o reverse the scan direction if desired 8 Press the 3 MEM 2 VFO or 1 PRIO to exit the scan mode LOCKING A MEMORY CHANNEL Memory channels tagged with the symbol will be skipped during the scan process...

Page 32: ...PERATION The TR270 is capable of FM voice operation over a simplex or repeater frequency pair Additionally by using receiver B a crossband repeat function is also available Other selectable options in...

Page 33: ...noticeable loss of low frequency audio response if the filters are enabled Transceiver A To Enable Tone Encode and or Tone Encode Decode Press the A B A button to select receiver A if necessary 1 Pres...

Page 34: ...otate the main tuning wheel to scroll and highlight the desired digit that is to be edited The digit will flash Enter the new number at that digit location 3 To erase the entered number and start over...

Page 35: ...ceiver operating frequency press STORE button for immediate store 3 Press the 8 CTS button to display the subaudible tone frequency With the subaudible tone frequency dis played press the 8 CTS button...

Page 36: ...es While most of these satellites travel in polar low earth orbits particular attention must be paid to the antenna system for successful operation In a polar orbit as the satellite traverses pole to...

Page 37: ...type antennas one for the uplink 2 meters and one for the downlink 70 cm The downlink an tenna typically also includes a mast mounted low noise preamplifer These antennas are co located on a common m...

Page 38: ...signal is encountered Additionally the TR270 incorporates a scan range search setting for automatic acquisition of the downlink frequency a scan pause setting to adjust the rate of scanning and a scan...

Page 39: ...time the symbol will flash to indicate a loss of lock on the downlink signal When the scan sequence acquires the downlink signal the relative tuning indication will again read 50 and the symbol will...

Page 40: ...ed press the STORE button followed by the 3 MEM button and enter the desired 2 digit memory number using the numeric buttons this operation automatically shifts to the NUM mode Additionally the curren...

Page 41: ...wnlink signal the relative tuning indica tion will again read 50 and the lock symbol will illuminate continuously After LOS the TR270 will begin scanning through a programmed frequency range anticipat...

Page 42: ...maycauseharmfulinterferencetoradiocommunications However there is no guarantee that interference will not occur in a particular installation If this equipment does causeharmfulinterferencetoradioorte...

Page 43: ...both the TNC and radio properly The host should not send ASCII characters in the range 80 to FF hex Characters in the range E0 to FF hex are reserved for internal radio use and the other 8 bit charact...

Page 44: ...z data value or string t command termination character COMMAND Ax Bx C xx Cx D U Fxxx xxxx Gx Gxyy H Ix Kx Mx Nx Nxyy Ox Px Qx Qxx Rx Sx T U D V x W x Xx Ex d y y Lx d y y zt The unused command charac...

Page 45: ...simplex P plus M minus or V variable follows the frequency The transmit frequency is re ported last for receiver A variable offset and sat uplink channels A valid variable offset transmit frequency mu...

Page 46: ...E NET stations Expert command included to ease the learning process only the most common commands will be used until the EXPERT mode is enabled Independent Operation once installed and configured the...

Page 47: ...RRL Handbook Published by The American Radio Relay League 225 Main Street Newington CT 06111 U S A Copyright 1989 by The American Radio Relay League Library of Congress Catalog Card Number 41 3345 3 Y...

Page 48: ...FM Frequency Modulated signals in which the information or intelligence being transmitted changes the instantaneous frequency of the transmitter carrier Not to be confused with the FM Broadcast Band F...

Page 49: ...________________________________________________________________________________________________________ _______________________________________________________________________________________________...

Page 50: ...wheel to 15 Press to set 0 1 2 or 3 Press A B A Press 2 VFO Turn tuning wheel Press buttons or Press NUM 3 numeric buttons A Press and hold SETUP D Rotate tuning wheel to 04 Press to set 5 10 15 20 o...

Page 51: ...r In the memory mode rotate tuning wheel or Press for selection Store a new channel to old location erases original information Press and hold SETUP D A Rotate tuning wheel to SETUP 30 through 39 Pres...

Page 52: ...ogrammed in SETUPs 40 49 Press and hold SETUP D A Rotate tuning wheel to 20 Enter the START frequency endpoint 144 148 MHz Rotate tuning wheel to 21 Enter the STOP frequency endpoint 144 148 MHz B Rot...

Page 53: ...quired B Press 8 CTS once to display current CTCSS tone frequency Press 8 CTS a second and third time to enable or disable OFF the tone decoding as required Press push to talk on microphone Press 0 9...

Page 54: ..._______________________________________________________________________________________________ ________________________________________________________________________________________________________...

Page 55: ...________________________________________________________________________________________________________ _______________________________________________________________________________________________...

Page 56: ..._______________________________________________________________________________________________ ________________________________________________________________________________________________________...

Page 57: ...n your unit for service package the transceiver carefully using the original carton or other suitable container Write your return address clearly on the shipping carton and on an enclosed cover letter...

Page 58: ...oper performance from this product Therefore carefully read the Instruction Manual This warranty does not apply to any defect that R L DRAKE COMPANY determines is due to 1 Improper maintenance or repa...

Page 59: ...COMPANY 230 INDUSTRIAL DRIVE FRANKLIN OHIO 45005 U S A CUSTOMER SERVICE AND PARTS TELEPHONE 1 513 746 6990 TELEFAX 1 513 743 4576 WORLD WIDE WEB SITE http www rldrake com Downloaded by Amateur Radio...

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