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42            Suggested References

1) The ARRL Antenna Book
Published by:
The American Radio Relay League
225 Main Street
Newington, CT 06111  U.S.A.
Copyright © 1988 by The American Radio Relay League
Library of Congress Catalog Card Number: 55-8966

2) The ARRL 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) Your VHF Companion
Published by:
The American Radio Relay League
225 Main Street
Newington, CT 06111  U.S.A.
Copyright © 1992-96 by The American Radio Relay
League
ISBN: 0-87259-387-8

4) AMSAT
850 Sligo Avenue
Suite 600
Silver Spring, MD 20910  U.S.A.

Содержание TR270

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 49: ...________________________________________________________________________________________________________ _______________________________________________________________________________________________...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 54: ..._______________________________________________________________________________________________ ________________________________________________________________________________________________________...

Страница 55: ...________________________________________________________________________________________________________ _______________________________________________________________________________________________...

Страница 56: ..._______________________________________________________________________________________________ ________________________________________________________________________________________________________...

Страница 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...

Страница 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...

Страница 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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