Icom_IC-M710_710RT_Usage_2006.pdf

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1、 USING THE ICOM IC M710 and 710RT MARINE SSB RADIOS Revised July 2006 Walter R. Paul Disclaimer: This document was compiled from information supplied by members of the Cruising Club of America and from various publications and websites to which the reader is referred for more detailed and current in

2、formation. While the Club has no reason to believe that any of the information is inaccurate, it has not confirmed the accuracy or completeness of the information and makes no representation with respect thereto. Furthermore, this document does not purport to supply all of the information someone sh

3、ould have before embarking on an offshore passage. Note: Reference to a commercial product or service does not imply any endorsement by the Cruising Club of America as to function or suitability for any purpose or environment. Foreword Single Side Band (SSB) radios are sometimes called transceivers

4、meaning a combination of both transmitter and receiver in one unit. Although these radios have many advanced features, the basic operation is direct and easy to use once you catch on to it. This paper is intended to be a simple reference for the Icom M-710 and M710RT MF/HF Marine Transceivers and is

5、 not intended to be a replacement for the Instruction Manuals. Its purpose is to assist crewmembers unfamiliar with these SSB radios. It assumes the radio has been installed with a proper antenna connection, a good ground and has been determined to be operating satisfactorily by a qualified person o

6、r technician. There are a few notes that apply to this paper: 1. All frequencies and SSB modes described are kHz (kilo Hertz) and USB (Upper Side Band) unless otherwise noted. 2. Although other equipment including Ham radios operate in single sideband mode, SSB throughout this paper refers to Marine

7、 Single Sideband Radios. 3. The International Telegraphic Union (ITU) is a UN body located at Geneva, Switzerland responsible for regulating radio usage including frequency and channel allocations. The US along with most maritime countries is party to treaties supporting these regulations. They are

8、promulgated in the US by the Federal Communications Commission (FCC) and administered by various agencies. The US Coast Guard (USCG) has responsibility for maritime applications. 4. It has been suggested that an index be added. Actually, a facility in Acrobat Reader is available for this. Simply cli

9、ck on “Edit” on the Tool Bar, then “Find” and type in the reference word. The program will do the rest. 5. Downloading this paper to a computer running on Windows requires Acrobat Reader Version 5.0 or higher. Unfortunately, this version was released prior to Windows XP and while it will appear corr

10、ect on computers running Windows XP, printing it out requires Acrobat Version 6.0 or higher for a legible printout. The latest Acrobat Reader version is available free at this website. 6. Margins, top and bottom, left and right have been set to: a. Top and bottom 1.0” b. Left and right 0.6” c. Heade

11、r and footer 0.5” Version 6.01 12 Jul 2006 1 7. Additional information about using a marine SSB, that is what to do with it once you know how to use it may be found in “Offshore Communications Memorandum” and the paper “Frequencies, Nets, WX Schedules and Tables”, formerly titled the “Appendix” at t

12、his CCA website, www.cruisingclub.org under the sidebar “Offshore Communications and Electronics”. 8. Information about SSB Transmissions, Connections and Grounds may also be found at that same sidebar. My thanks to R. Steven Thing and Bill Cote who reviewed the original draft along with others who

13、have written about the content since then. Comments, corrections and suggestions are more than welcomed and I try to respond to each of these when received. Since we spend as much time as we can on our boat, please send them to me via email. Have a good time with these great radios. Walt Paul nefert

14、arib- Chair Offshore Communications and Electronics Cruising Club of America July 2006 Version 6.01 12 Jul 2006 2 CHANGES AND CORRECTIONS Major changes, additions and corrections in this version are highlighted in YELLOW where practical to assist in recognizing them. Where a new section or paragraph

15、 has been added, the title in the Table of Contents and the title (only) in the body of the paper are highlighted. Version 5.01 Revised version numbering (year issue) Revised reference to the USCG Distress and Safety Watchkeeping Channels to reflect the change effective 1 Jan 05 Minor editorial corr

16、ections and reorganization Version 6.01 Editorial clean-up and minor corredtions Version 6.01 12 Jul 2006 3 TABLE OF CONTENTS Page 1 Introduction . 6 2 The Icom Dealer . 6 3 Just A Little Technical Background For The Unfamiliar . 6 4 How The Radio Is Organized . 6 5 In Practice . 8 6 The Internation

17、al Distress, Safety and Hailing Frequencies . 9 6.1 The USCG Working Channels . 10 7 Getting Started . 10 7.1 The User Programmable Channels . 11 7.2 The Duplex Channels . 11 7.3 More On Selecting ITU Dup0lex Channels . 13 7.4 The Associated Simplex channels . 14 8 Operating The Radio . 15 8.1 Frequ

18、ency / Channel Presentation . 15 8.2 The RX Icon . 16 8.3 Simplex, Duplex or Blank . 16 9 The Buttons Under The Display . 17 9.1 The Mode Button (Emission Mode) . 17 9.2 The Other Buttons . 18 9.2.1 AGC . 18 9.2.2 NB . 18 9.2.3 SQL . 18 9.2.4 FUNC . 18 9.2.5 TUNE . 18 10 The Keypad . 19 10.1 CE . 19

19、 10.2 Dash Symbol “-“ . 19 10.3 RX . 19 10.4 Direct Dialing . 20 10.5 TX . 20 Version 6.01 12 Jul 2006 4 11 Changing Programmable Frequencies . 20 11.1 To Change An RX . 20 11.2 To Change A TX . 21 12 The M710RT Microphone . 22 11.1 Channel selection Buttons . 22 11.2 P Switch . 22 11.3 Push To Talk

20、 . 22 13 Transmitting . 23 Version 6.01 12 Jul 2006 5 1 INTRODUCTION The M710 and M710RT are nearly identical in both operation and face appearance. The differences are, the M710RT face plate or Controller is separate from the main body of the radio; that is, the radio is in two boxes and one of the

21、m can be somewhat remote. The M710RT also has key buttons on the microphone for some channel and function selection while the M710 does not. Aside from the added microphone controls, these radios operate the same and are treated as one in the following discussion. 2 THE ICOM DEALER Continuing suppor

22、t is available from the Icom Dealer. This includes: 1. Correcting the emission mode for 2182 kHz in Channel 0 to USB if it is factory set to AM, DSB or H3E (all the same). This is not programmable by the user. 2. The radio can be adjusted for “Ham” operation for licensed Ham Operators. To do this, t

23、he operator must produce a “General” or above Ham License for the Dealers inspection. At the same time, the Dealer can also adjust the TX high frequency limitation to enable 10- meter operation. 3. The stored frequencies can be quickly modified by the dealer for the area you sail. In the event an Ic

24、om dealer is not available, Icom America can be contacted at: Main switchboard: Tel: 1 800 872 4266 1 425 454 7619 Fax: 1 425 454 1509 Technical Questions: Information on parts: Web Site: 3 JUST A LITTLE TECHNICAL BACKGROUND FOR THE UNFAMILIAR The Federal Communications Commission (FCC) regulates ra

25、dio transmission on medium and high frequencies (MF these signals normally “skip” over the top of yachts close in where your friends are who then cant receive the transmission. There is no such thing as a free lunch. In the Caribbean, most SSB traffic and nets are on 4 or 6 MHz and the calling frequ

26、ency is 6215 kHz, the calling and safety frequency. In the Mediterranean, most traffic is 8 MHz because of the added distance and many yachts use 8122 kHz for a calling frequency, particularly after the morning cruisers net. Some yachts use their SSB to make high seas telephone calls or send and rec

27、eive e-mail via shore stations. Operations with shore stations normally involve duplex channels and are USB. Version 6.01 12 Jul 2006 8 Doing email normally requires an accessory like a modem to manage the data. More details on this are covered in the primary paper in this series, “Offshore Communic

28、ations Memorandum”. Local radio broadcast stations are normally AM as are WWV on or off. However, contrast and brightness may also be controlled via “SET MODE” discussed on page 14 of the M710 Instruction Manual. With the M710RT, depress the Dimmer button while rotating the Channel and Group Knobs (

29、see page 2 in the M710RT Manual). 9 The Buttons Under The Display . 9.1 The Mode Button (Emission Modes) If the mode is anything other than USB (or J3E), depress the “MODE” button (just below the lower left corner of the display) as many times as it takes to change it back to USB. Then go to the key

30、board and depress CE and then RX to save it. You should hear a “beep” indicting it has been saved. Continued depressing the “MODE” button will change the display to AM, LSB, J2B, FSK, CW and then back to USB. USB or Upper Sideband is the type of emission or operating mode used for most marine SSB tr

31、ansmissions. FSK is used for some Weather Facsimiles (WX Fax), but USB works well. AM or Amplitude Modulation is the same type of transmission as you have on your home AM radio. This is sometimes called DSB for Double Sideband and was the standard transmission method in years gone by. It is no longe

32、r used except for some government operations and commercial broadcast radio. LSB or Lower Sideband is used for some foreign weather facsimile broadcasts and by Hams at frequencies below 7.300 MHz. Ham operations at frequencies from 7.300 to 30.000 MHz are USB. AFSK or Audio Frequency Shift Keying is

33、 an emission technique used in advanced applications involving accessories and is beyond the scope of this paper. FSK or Frequency Shift Keying is another emission technique used in advanced applications involving accessories and also beyond the scope of this paper. CW or Continuous Wave is the type

34、 of emission used for Morse code. It is sometimes called A1A. Version 6.01 12 Jul 2006 17 The Emission Modes displayed on this radio may differ from the mode coding used by the FCC. Sometimes they are used interchangeably. A conversion table follows to help clarify. M - 710 / 710RT MODE EMISSION AM

35、H3E CW A1A FSK F1B ASFK J2E LSB J3E R3E R3E USB J3E 9.2 The Other Buttons In addition to the MODE button, the remaining buttons under the display are AGC, NB, SQL and FUNC. TUNE is located between the knobs. 9.2.1 AGC or AUTOMATIC GAIN CONTROL - Normally ON AGC adjusts the receivers gain to ensure w

36、eek signals are received at the same volume as strong. If it is off, the letters AGC with lines through it will appear on the display. Depress the AGC button to turn it on (no symbol or indication). Without AGC on, some signals may be too loud. With weak weather facsimile (WX Fax) signals however, s

37、ome picture improvement may be achieved by turning the AGC off. 9.2.2 NB or NOISE BLANKER - Normally OFF NB is used to eliminate repetitive noise interference from equipment close by such as fluorescent lights, motors, NMEA Data stream for electronic equipment on board and the like. It is on when th

38、e letters NB appear on the right side of the display. 9.2.3 SQL or Squelch - Normally OFF SQL eliminates the hiss heard on SSB, but it can also reduce sensitivity to weak signals. When it is on, the letters SQL appear on the right side of the display. You wont hurt anything by depressing these butto

39、ns, but it will help if you set them as suggested above. They are mainly to enhance how well you receive. NB on some other radios brands may create interference for neighboring vessels when transmitting. Version 6.01 12 Jul 2006 18 9.2.4 FUNC or Function is something you could get into trouble with

40、the first time around so leave it alone for now. Consult the ICOM Instruction Manual after you are comfortable with the radio. To minimize “follow on” grief, write down all settings before changing anything in FUNC. 9.2.5 TUNE - The TUNE button activates the Automatic Tuner. Depressing the TUNE butt

41、on peaks the antenna system to the transmit frequency. There is normally no need to tune when receiving although it sometimes helps with weak signals. There is also no need to retune when making small TX frequency changes such from 4146.0 to 4149.0 kHz. The AT-130 Automatic Tuner is standard with th

42、ese radios and with it, the TUNE button can be ignored. The AT-130 will automatically tune when the channel is changed or the side microphone button is depressed to talk depending how the radio is setup. Two tuning methods are available with the AT-130. With the first, the tuner will automatically r

43、etune every time a channel is changed with the knobs. With the second method, the tuner will automatically retune only when the microphone button is depressed. Microphone tuning is preferred because the antenna doesnt usually need to be retuned to listen. Which one used is selected in the SET MODE (

44、3) found on page 13 of the Instruction Manual. If another model or brand tuner is being used, the TUNE button must be depressed before transmitting if the frequency has been changed. When the TUNE button is depressed, the word TUNE will appear on the left side of the display. 10 The Keypad The keypa

45、d at the right side of the radio has two functions. They are, direct channel selection and inputting new frequencies. In addition to the CH/FREQ already discussed, note the Keypad buttons labeled CE, -, RX and TX. 10.1 CE or Change Entry is used mainly to change a frequency. When it is depressed, a

46、small triangle appears on the left of the display to indicate it is active and is accompanied with a beep. Depressing the CE button will also erase any erroneous entries. 10.2 The Dash Symbol “-” is used when direct dialing to the simplex channels associated with the duplex channel section of the memory such as 4-1, 12-3, etc. Version 6.01