Receiver

Circuit Type: Intermediate Frequencies: Sensitivity (for 12dB SINAD): Squelch Sensitivity: Image Rejection: Selectivity (6dB/60dB): Maximum AF Output: AF Output Impedance: Double-conversion superheterodyne 21.7 MHz/450 kHz (VHF), 45.05 MHz/455 kHz (UHF) Better than 0.16 V 0.1 V 70 dB 12 kHz/24 kHz 2 W @ 8 for 5% THD 4-16
Specifications are subject to change without notice, and are guaranteed within the 144 and 430 MHz amateur bands only. Frequency ranges will vary according to transceiver version; check with your dealer.

ACCESSORIES & OPTION

SUPPLIED ACCESSORIES
Microphone MH-48A6J or MH-42B6JS (depending on transceiver version). 1 Mobile Mounting Bracket MMB-36... 1 DC Power Cord w/Fuse T9021715... 1 Spare Fuse 15A (Q0000081)... 2 Operating Manual.... 1 Warranty Card.... 1

OPTIONAL ACCESSORIES

MH-48A6J MH-42B6JS YSK-7100 MEK-2 MMB-60 MMB-62 SP-7 MLS-100 FP-1023 FP-1030A CT-39A AD-3 ADMS-2 DTMF Microphone Hand Microphone Separation Kit Microphone Extension Kit Quick Release Mobile Mounting Bracket Remote Front Panel Mounting Bracket External Speaker High-Power External Speaker AC Power Supply (25A: USA only) AC Power Supply (30A) Packet Interface Cable VHF-UHF Duplexer for Two-antenna Operation WindowsTM PC Programming Software
Availability of accessories may vary. Some accessories are supplied as standard per local requirements, while others may be unavailable in some regions. Consult your Yaesu dealer for details regarding these and any newly-available options Connection of any non-Yaesuapproved accessory, should it cause damage, may void the Limited Warranty on this apparatus.

INSTALLATION

This chapter describes the installation procedure for integrating the FT-7100M into a typical amateur radio station. It is presumed that you possess technical knowledge and conceptual understanding consistent with your status as a licensed radio amateur. Please take some extra time to make certain that the important safety and technical requirements detailed in this chapter are followed closely.

PRELIMINARY INSPECTION

Inspect the transceiver visually immediately upon opening the packing carton. Confirm that all controls and switches work freely, and inspect the cabinet for any damage. Gently shake the transceiver to verify that no internal components have been shaken loose due to rough handling during shipping. If any evidence of damage is discovered, document it thoroughly and contact the shipping company (or your local dealer, if the unit was purchased over-the-counter) so as to get instructions regarding the prompt resolution of the damage situation. Be certain to save the shipping carton, especially if there are any punctures or other evidence of damage incurred during shipping; if it is necessary to return the unit for service or replacement, use the original packing materials but put the entire package inside another packing carton, so as to preserve the evidence of shipping damage for insurance purposes.

INSTALLATION TIPS

To ensure long life of the components, be certain to provide adequate ventilation around the cabinet of the FT-7100M. Do not install the transceiver on top of another heat-generating device (such as a power supply or amplifier), and do not place equipment, books, or papers on top of the FT-7100M. Avoid heating vents and window locations that could expose the transceiver to excessive direct sunlight, especially in hot climates. The FT-7100M should not be used in an environment where the ambient temperature exceeds +140 F (+60 C).

SAFETY INFORMATION

The FT-7100M is an electrical apparatus, as well as a generator of RF (Radio Frequency) energy, and you should exercise all safety precautions as are appropriate for this type of device. These safety tips apply to any device installed in a well-designed amateur radio station. Never allow unsupervised children to play in the vicinity of your transceiver or antenna installation. Be certain to wrap any wire or cable splices thoroughly with insulating electrical tape, to prevent short circuits. Do not route cables or wires through door jambs or other locations where, through wear and tear, they may become frayed and shorted to ground or to each other. Do not stand in front of a directional antenna while you are transmitting into that antenna. Do not install a directional antenna in any location where humans or pets may be walking in the main directional lobe of the antennas radiation pattern. In mobile installations, it is preferable to mount your antenna on top of the roof of the vehicle, if feasible, so as to utilize the car body as a counterpoise for the antenna and raise the radiation pattern as far away from passengers as possible. During vehicular operation when stopped (in a parking lot, for example), make it a practice to switch to Low power if there are people walking nearby. Never wear dual-earmuff headphones while driving a vehicle. Do not attempt to drive your vehicle while making a telephone call on an autopatch using the DTMF microphone. Pull over to the side of the road, whether dialing manually or using the auto-dial feature.

ANTENNA CONSIDERATIONS

The FT-7100M is designed for use with antennas presenting an impedance of near 50 Ohms at all operating frequencies. The antenna (or a 50 W dummy load) should be connected whenever the transceiver is turned on, to avoid damage that could otherwise result if transmission occurs accidentally without an antenna. Ensure that your antenna is designed to handle 50 Watts of transmitter power. Some magnetic-mount mobile antennas, designed for use with hand-held transceivers, may not be capable of withstanding this power level. Consult the antenna manufacturers specification sheet for details. Most all FM work is performed using vertical polarization. When installing a directional antenna such as a Yagi or Cubical Quad, be certain to orient it so as to produce vertical polarization, unless you are engaged in a special operating situation where horizontal polarization is used. In the case of a Yagi antenna, orient the elements vertically for vertical polarization; for a Cubical Quad, the feedpoint should be at the center of one of the vertical sides of the driven element (or at a side corner, in the case of a diamond-shaped Cubical Quad). Note that this transceiver is designed with wide frequency coverage in the VHF/UHF spectrum. For general listening, you may wish to have a broadband antenna such as a discone available, as a directional antenna such as a Yagi will have degraded performance outside the Amateur band for which it is designed. Excellent reference texts and computer software are available for the design and optimization of VHF and UHF antennas. Your dealer should be able to assist you with all aspects of your antenna installation requirements. Use high-quality 50 Ohm coaxial cable for the lead-in to your FT-7100M transceiver. All efforts at providing an efficient antenna system will be wasted if poor quality, lossy coaxial cable is used. Losses in coaxial lines increase as the frequency increases, so an 8-meter-long (25) coaxial line with 1/2 dB of loss at 28 MHz may have a loss of 6 dB or more at 446 MHz; choose your coaxial cable carefully based on the installation location (mobile vs. base) and the overall length of the cable required (for very short runs of cable in a mobile installation, the smaller, more flexible cable types may be acceptable).

VFO Tracking

The main and sub VFOs may be slaved together, so that rotation of the Main Dial knob (or stepping of the microphone [UP]/[DWN] buttons) causes both VFOs to move in tandem. Each VFO will increment in the step sizes that have been established by you previously, i.e. one step on VHF might be 5 kHz and one step on UHF might be 25 kHz, and VFOs will advance by those increments during VFO Tracking operation. To activate VFO tracking, use the following procedure: 1. 2. 3. 4. 5. Press and hold in the [BAND] key for 1/2 second to activate the Menu mode. Rotate the Main Dial knob to select Menu # 33 (VFOTR). Press the [BAND] key momentarily to enable changing of this Menu item. Rotate the Main Dial knob to select ON. Press and hold in the [BAND] key for 1/2 second to save the new setting and exit to normal operation.
To disable the VFO tracking function, select OFF in step 4 above.

Receiver Muting

The Mute feature is useful in situations where it would be helpful to reduce the audio level of the sub receiver whenever you receive a signal on the main band. To activate the Mute feature: 1. 2. 3. 4. 5. Press and hold in the [BAND] key for 1/2 second to activate the Menu mode. Rotate the Main Dial knob to select Menu # 18 (MUTE). Press the [BAND] key momentarily to enable changing of this Menu item. Rotate the Main Dial knob to select ON. Press and hold in the [BAND] key for 1/2 second to save the new setting and exit to normal operation.
To disable the Mute feature, select OFF in step 4 above.
VHF-VHF (V-V) or UHF-UHF (U-U) Operation
The FT-7100M typically operates on one VHF and one UHF frequency. However, the FT7100M may be configured to operate either in a V-V or U-U mode, if needed. Operation in either of these modes is easily enabled: r If the main band is VHF, press and hold in the [HOME] key for 1/2 second. The transceiver will now display replicate its VHF frequency on both upper and lower channels, and will be operating in the V-V mode. r If the main band is UHF, press and hold in the [HOME] key for 1/2 second. The transceiver will now replicate its UHF frequency on both upper and lower channels, and will be operating in the U-U mode. r To return to normal VHF-UHF operation, press and hold in the [HOME] key for 1/2 second. The original VFO or Memory frequency for the sub band will be restored.

VHF-VHF (V-V) Operation

UHF-UHF (U-U) Operation
During V-V or U-U operation, receive sensitivity and intermodulation rejection of the sub receiver will be degraded slightly. However, this usually will not be noticeable except during operation in highly RF-congested areas.

Lock Feature

The Lock function prevents accidental changes to the frequency setting and the key/button controls. 1. Press and hold in the [BAND] key for 1/2 second to activate the Menu mode. Lock Feature Active 2. Rotate the Main Dial knob to select Menu # 15 (LOCK). 3. Press the [BAND] key momentarily to enable changing of this Menu item. 4. Rotate the Main Dial knob one click to change the display to ON. 5. Press and hold in the [BAND] key for 1/2 second to save the new setting and exit to normal operation. To unlock the keys and buttons for normal operation, select OFF in step 4 above.

Keypad Beeper

The key/button beeper provides useful audible feedback whenever a key or button is pressed. If you want to turn the beeper off (or back on again): 1. 2. 3. 4. 5. Press and hold in the [BAND] key for 1/2 second to activate the Menu mode. Rotate the Main Dial knob to select Menu # 4 (BEEP). Press the [BAND] key momentarily to enable changing of this Menu item. Rotate the Main Dial knob to select OFF. Press and hold in the [BAND] key for 1/2 second to save the new setting and exit to normal operation.

Display Brightness

The orange display illumination has been specially engineered to provide high visibility over a wide range of ambient lighting situations. The brightness of the display is manually adjustable, using the following procedure: 1. 2. 3. 4. Press and hold in the [BAND] key for 1/2 second to activate the Menu mode. Rotate the Main Dial knob to select Menu # 7 (DIM ). Press the [BAND] key momentarily to enable changing of this Menu item. Rotate the Main Dial knob to select a comfortable brightness level (DIM 1 ~ DIM 7 , or OFF). 5. Press and hold in the [BAND] key for 1/2 second to save the new setting and exit to normal operation.

TRANSMISSION

To transmit, simply close the PTT (Push To Talk) switch on the microphone when the frequency is clear. Hold the microphone approximately 25 mm (1) from your mouth, and speak into the microphone in a normal voice level. When your transmission is complete, release the PTT switch; the transceiver will revert to the receive mode. During transmission, the main band BUSY/TX indicator changes from Green to Red, and the S&PO meter segments rise up according to the power output selected.

Power Output Setting

You can also set a longer delay between the time the [HOME] key is pressed and the first DTMF digit is send. To set the delay time, use the following procedure: Press and hold the [BAND] key for 1/2 second to activate the Menu mode. Rotate the Main Dial knob to select Menu # 12 (DTMFD). Press the [BAND] key momentarily to enable changing of this Menu item. Rotate the Main Dial knob to select the desired speed from the available choices (50ms, 250ms, 450ms, 750ms, or 1000ms). 5. Press and hold in the [BAND] key for 1/2 second to save the new setting and exit normal operation. 1. 2. 3. 4. Important Note Do not attempt to utilize the DTMF features, either manually or Auto-dialing, while you are driving. Always park you car before dialing, in the interest of safety to you, your passengers, and other drivers.
Transmitter Time-Out Timer (TOT)
The Time-Out Timer (TOT) feature is designed to force the transceiver into the receive mode after a preset time period of continuous transmission (the default is 6 minutes). This feature prevents your transceiver from transmitting a dead carrier for a long period of time in the event that the microphone PTT switch is accidentally locked in the TX condition. The Time-Out Timers switch-to-receive time may be adjusted, in one minute increments, for any period between 1 and 30 minutes. To change the default (6 minutes) time setting: Press and hold in the [BAND] key for 1/2 second to activate the Menu mode. Rotate the Main Dial knob to select Menu # 31 (TOT). Press the [BAND] key momentarily to enable changing of this Menu item. Rotate the Main Dial knob to select the desired time interval (between 1 and minutes, or OFF. 5. Press and hold in the [BAND] key for 1/2 second to save the new setting and exit to normal operation. 1. 2. 3. 4. When the TOT feature is activated, appears at the bottom of the display, and a timer starts every time you press the PTT switch. About a minute before the selected time-out period has expired (during transmission), will begin blinking. Then, if you continue pressing the PTT switch until the selected TOT time interval, transmission will case, and you will hear the alert beeper sound until you release the PTT switch.

MEMORY OPERATION

MEMORY STORAGE
1. Select the desired frequency, while operating in the VFO mode. Be sure to set up any CTCSS or DCS tones as well as any desired repeater offset. The power level may also be set at this time, if you wish to store it at a particular level of interest. 2. Press and hold in the [V/M] key for 1/2 second. Memory Channel Number 3. Within the three seconds of releasing the [V/M] key, use the Main Dial knob (or the microphones [UP]/[DWN] buttons) to select the desired memory channel. The memory channel number will blinking on the LCD. 4. To attach an alpha/numeric name (label) to the memory, press the [V/M] key momentarily; otherwise press and hold in the [V/M] key for 1/2 second to save the entry and exit. 5. To label a memory with an alpha/numeric name, use the Main Dial knob (or the microphones [UP]/[DWN] buttons) to select any of the 80 available characters (including letters, numbers, and special symbols). When the desired first character appears, press the [LOW] key momentarily to move on to the next character. 6. Select succeeding characters in the same manner, pressing the [LOW] key momentarily after each selection. 7. You may move to the back character by pressing the [BAND] key momentarily. Press and hold the [BAND] key for 1/2 second to erase the charactors at the right. 8. After entering the entire name (five characters maximum for upper display filed, six for lower field), press and hold in the [V/M] key for 1/2 second to save all data for the channel and exit.

MASKING A MEMORY

There may be situations where you want to Mask memories so they are not visible during memory selection or scanning. For example, several memories used only in a city you visit infrequently may be stored, then Masked until you visit that city, at which time you can Unmask them for normal use. 1. Press and hold the [V/M] key for 1/2 second. 2. Rotate the Main Dial knob (or press the microphones [UP]/[DWN] buttons) to select the memory channel to be Masked from view. 3. Press the [REV] key momentarily. The display will revert to memory channel #1, and the previously-selected memory will now be Masked. 4. To unmask the hidden memory, repeat the above procedure: press and hold in the [V/M] key for 1/2 second, select the masked memorys number, then press the [REV] key momentarily to restore the memory channels data. If you over-write a masked memory channel, the original contents of the memory will be lost.
TRANSFERRING MEMORY CHANNELS
There are 262 programmable memory channels in the FT-7100M. These consist of 120 regular memories and 11 special-purpose memories (L1 - L5, U1 - U5, and HOME) for each band. However, if you need more memories on a particular band, you can transfer (regular) memories from one group to another, as needed (such as VHF: 190 channels, UHF: 50 channels). To transfer memory channels from one band to the other: 1. Press and hold in the [BAND] key while turning the transceiver on. 2. The display will show the present memory channel ratio. Rotate the Main Dial knob to select the memory channel ratio you need. 3. Press and hold in the [BAND] key for 1/2 second to save the new setting and exit to normal operation.

VHF Memory Channel

UHF Memory Channel
Previously-stored channel data is lost when performing this procedure.

MEMORY ONLY MODE

Once memory channel programming has been completed, you may place the radio in a Memory Only mode, whereby VFO operation is impossible. This may be particularly useful during public-service events where a number of operators may be using the radio for first time, and ultimate simplicity of channel selection is desired. To place the radio into the Memory Only mode, turn the radio off. Now press and hold in the [V/M] key while turning the radio on. To return to normal operation, repeat the above power-on procedure.

SCANNING FEATURES

SCANNING OPERATION
The FT-7100Ms microprocessor-based scanning feature allows quick scanning of the memory channels, or sweeping of a band, looking for activity. Before activating the scanner, make sure that the SQL control is set to silence the background noise when no signal is present. If the noise is not squelched, the transceiver will think that it has found a signal, and will not scan. Scanning may be started or stopped with the microphones [UP] or [DWN] button. The following techniques are used for scanning: 1. Pressing and holding in either the [UP] or [DWN] button for 1/2 second in the VFO mode will cause upward or downward band scanning, respectively, to begin. 2. Pressing and holding in either the [UP] or [DWN] button for 1/2 second in the Memory mode will cause memory channel scanning toward a higher- or lower-numbered memory channel, respectively. 3. Scanning pauses when a signal opens the squelch, and the decimal point on the display will blink. You can choose one of two scan-resume modes (described below). 4. To halt the scan manually, the easiest way is to push the PTT switch on the microphone momentarily (no transmission will occur while you are scanning). 5. The scan may also be halted manually by pressing the microphones [UP]/[DWN] button, or the front panels [V/M] key.

Scan-Resume Options

Two scan-resume modes are available on the FT-7100M: In the BUSY mode, the scanner will remain stopped for as long as there is a carrier present on the channel; after the carrier drops at the end of the other stations transmission, the scanner will resume. In the TIME mode, the scanner will halt for five seconds only, after which scanning will resume (whether or not the other station is still transmitting). To change the scan-resume mode, use the following procedure: 1. Press and hold in the [BAND] key for 1/2 second to activate the Menu mode. 2. Rotate the Main Dial knob to select Menu # 25 (SCAN). 3. Press the [BAND] key momentarily to enable changing of this Menu item. 4. Rotate the Main Dial knob to select the desired scan-resume mode (B U S Y or TIME). 5. Press and hold in the [BAND] key for 1/2 second to save the new setting and exit to normal operation.

MEMORY SKIP SCANNING

When you have some continuously-active channels in memories, you may wish to skip them for scanning, but still have them available for manual selection using the Main Dial. To mark a memory to be skipped during scanning, use the following procedure: 1. Recall the memory channel to be skipped. Note: Memory Channel 1 may not be skipped. 2. Press and hold in the [TONE] key for 1/2 second. A small p icon will appear to the bottom of the memory channel number, indicating it is to be ignored during scanning. 3. To re-enable a skipped memory channel, repeat the above procedure: recall the skipped memory channel using the Main Dial, then press and hold in the [TONE] key for 1/2 second to re-enable the channel.

Temporary Memory Skip

If the scanner repeatedly stops on a channel due to temporary noise or interference, you can temporarily mark it to be skipped (except for Memory Channel 1). The channel will be skipped until you manually stop the scan (by pressing the PTT switch, for example). To skip a channel temporarily, press the [TONE] key momentarily while the scanner has stopped on the channel to be skipped. The scanner will instantaneously resume, and that channel will not be scanned during this scanning session.
PROGRAMMABLE BAND-SCAN LIMITS
This feature allows you to set sub-band limits for either scanning or manual VFO operation. For example, you might wish to set up a limit (in North America) of 144.300 MHz to 148.00 MHz so as to prevent encroachment into the SSB/CW Weak Signal portion of the band below 144.300 MHz. Heres how to do this: 1. Set the radio to the VFO mode by pressing the [V/M] key, if necessary. 2. Using the techniques learned earlier, store (per above example) 144.300 MHz into Memory Channel L1 (the L designates the Lower sub-band limit). 3. Likewise, store 148.000 MHz into Memory Channel U1 (the U designates the Upper sub-band limit). 4. Switch to the Memory Recall mode by pressing the [V/M] key once, then recall Memory Channel L1 or U 1. 5. Press the [MHz] key momentarily; the icon will appear on the display. 6. You may now rotate the Main Dial knob, or begin scanning by press and holding in the microphones [UP]/[DWN] button for 1/2 second. The transceiver will behave as though it is in the standard VFO mode, but operation will be restricted to the range between Memory channels L1 and U 1. Five pairs of Band Limit memories, labeled L1/U 1 through L5/U 5 , are available. You therefore can set a number of operating sub-bands, if you like.
PRIORITY CHANNEL OPERATION
The Priority function allows automatic checking for activity on a designated Priority Memory channel every five second while operating on the VFO, a HOME channel, or another Memory channel.

VFO Priority

1. Recall the memory channel which you want to use as the Priority frequency. 2. Now set the FT-7100M for operation on any VFO frequency on the same band as the Priority frequency. 3. Press and hold in the [REV] key for 1/2 second to activate the VFO Priority mode; the PRI icon will appear on the display. The frequency display will remain on the VFO frequency, but every five seconds the FT-7100M will check the Priority Channel (designated memory channel) for activity. 4. Press the [V/M] key to disable the VFO Priority mode and exit to the VFO mode.

Memory Priority

1. Store the frequency you wish to use as the Priority channel into memory channel 1. 2. Now set the FT-7100M for operation on another memory channel on the same band as the Priority channel. 3. Press and hold in the [REV] key for 1/2 second to activate the Memory Priority mode; the PRI icon will appear on the display. The frequency display will remain on the current memory channel frequency, but every five seconds the FT-7100M will check the Priority channel (memory channel 1) for activity. 4. Press the [V/M] key to disable the Memory Priority mode and exit to the memory mode.

HOME Priority

1. Recall the memory channel which you wish to use as the priority frequency. 2. Now set the FT-7100M for operation on the HOME channel that is on the same band as the selected HOME channel. 3. Press and hold in the [REV] key for 1/2 second to activate the HOME Priority mode; the PRI icon will appear on the display. The frequency display will remain on the HOME channel frequency, but every five seconds the FT-7100M will check the Priority channel (memory channel) for activity. 4. Press the [V/M] key to disable the HOME Priority mode and exit to the HOME channel.

SMART SEARCH

The Smart Search feature may be used to load - automatically with no operator intervention - a special bank of up to 50 memory channels (per band) based on activity. Smart Search will sweep either the entire band or the portion of the band within the Programmable Band-Scan Limits, and will load the Smart Search memory bank with the frequency data pertaining to those channels on which activity is found. The channels are loaded in the order in which they are encountered, not according to signal strength or by ascending frequency. The Smart Search feature is especially useful when visiting a city for the first time, where you may be unfamiliar with the repeater frequencies used locally; Smart Search discovers where the local activity is to be found, and automatically loads those frequencies for you. Smart Search operation is simple to activate: 1. Press and hold in the [TONE] key for 1/2 second. 2. The Smart Search process will now cause the radio to scan upward on the current band, loading channels on which it encounters a signal strong enough to open the squelch. 3. When 50 channels are loaded or the scanner reaches the band edge, the scanner will stop and the transceiver will revert to the starting frequency. 4. To recall the Smart Search Memories just stored, rotate the Main Dial knob. 5. Press the [V/M] key momentarily to exit the Smart Search mode. Note that these memories are so-called soft memories; they will be lost if you exit Smart Search to a VFO/Memory, or if you initiate a new Smart Search. Smart Search also does not store CTCSS or DCS information; if you cannot access a repeater found during Smart Search, you may need to investigate possible access tones.

PROGRAMMING THE MICROPHONE BUTTON FUNCTIONS
Default FT-7100M button functions have been assigned (at the factory) to the microphones buttons*. These may be changed by the user, if you wish to define another function for a particular button or buttons To change the assignment of a buttons function: 1. Press and hold in the [BAND] key for 1/2 second to activate the Menu mode. 2. Rotate the Main Dial knob to select the MENU ITEM MH-48A6J LABEL MH-42B6JS LABEL [P1] button [ACC] button Menu item corresponding to the button 20: P G P 1 [P2] button [P] button 21: P G P 2 to be assigned a function (20: P G P 1, 22: P G P 3 [P3] button [P1] button [P4] button [P2] button 21: PG P2 , 22: PG P3 , or 23: PG P4). 23: P G P 4 3. Press the [BAND] key momentarily to enable changing of the selected Menu item. 4. Rotate the Main Dial knob to select the function you wish to assign to the button you selected in the previous step. The available choices are: SQL OFF : Disables (opens) the Noise and Tone Squelch. TCALL: Activates 1750 Hz Tone Burst. RPTR: Selects Repeater Shift Direction. PRI: Activates Priority Channel monitoring. LOW: Selects Power Output Level. TONE: Selects CTCSS or DCS mode and tone/code. MHz: Enables selection of the MHz digit of the frequency. REV: Reverses Repeater Uplink/Downlink frequencies. HOME: Switches frequency to the Home channel. BAND : Selects main band of operation: VHF or UHF. VFO /MR: Switches frequency control between VFO and Memory. 5. Press and hold in the [BAND] key for 1/2 second to save the new setting(s) and exit to normal operation. *: MH-48A6J: [P1], [P2], [P3], and [P4] buttons. MH-42B6JS: [ACC], [P], [P1], and [P2] buttons.

DCS CODE INVERSION

The DCS system was first introduced in the commercial LMR (Land Mobile Radio) service, where it is now in widespread use. DCS uses a codeword consisting of a 23-bit frame, transmitted (subaudibly) at a data rate of 134.4 bps (bit/sec). Occasionally, signal inversion can result in the complement of a code being sent or received. This prevents the receiver squelch from opening with DCS enabled, as the decoded bit sequence would not match that selected for operation. Typical situations that might cause inversion to occur are: Connection of an external receiver preamplifier. Operating through a repeater. Connection of an external linear amplifier. Note that code inversion does not mean that any of the above listed equipment is defective! In certain amplifier configurations, the output signal (phase) is inverted from the input. Small signal or power amplifiers having an odd number (1, 3, 5, etc.) of amplification stages may result in inversion of a transmitted or received DCS code. While under most circumstances this should not occur (amplifier designs and industry standards take this into account), if you find that your receiver squelch does not open when both you and the other station are using a common DCS code, you or the other station (but not both) can try the following: 1. 2. 3. 4. Press and hold in the [BAND] key for 1/2 second to activate the Menu mode. Rotate the Main Dial knob to select Menu #10 (DCSNR) Press the [BAND] key momentarily to enable changing of the Menu item. Rotate the Main Dial knob to select one of the following modes: TRX N : Encoder Normal; Decoder Normal RX R : Encoder Normal; Decoder Reverse (Inverted) TX R: Encoder Reverse (Inverted); Decoder Normal TRX R: Encoder Reverse (Inverted); Decoder Reverse (Inverted) 5. Press and hold in the [BAND] key for 1/2 second to save the new setting and exit to normal operation.

CLONING

You can transfer all data stored in one FT-7100M to another FT-7100M by utilizing the handy Cloning feature. This requires a user-constructed Cloning cable which connects the DATA jacks on the two transceivers, as shown below.
To clone from one transceiver to another, use the following procedure: 1. Insert the Clone Cable into the DATA jack of each transceiver. 2. Turn both transceivers off, then press and hold in the [REV] and [TONE] keys (on each radio) while turning the power on again. 3. On the destination radio, press the [REV] key. The CLONE RX indicator will appear on the display. 4. Now, on the source radio, press the [TONE] key. The CLONE TX indicator will appear on the display, and the cloning data transfer will immediately begin. 5. If there is a problem during the cloning process, ERROR will be displayed. Check your cable connections, and try again. 6. If cloning was successful, the CLONE RX and CLONE TX indicator will disappear. 7. Turn both transceivers off, then remove the Clone Cable. Channel and operating data for both radios are now identical. They both may be turned on now for normal operation.

MENU SYSTEM

The FT-7100Ms Menu System allows a number of transceiver operating parameters to be custom-configured for your operating requirements. The Menu is easy to active and set, using the following basic procedure: Press and hold in the [BAND] key for 1/2 second to activate the Menu mode. Rotate the Main Dial knob to select the Menu item to be adjusted. Press the [BAND] key momentarily to enable changing of the selected Menu item. Rotate the Main Dial knob to adjust or select the desired parameter of the selected Menu item. 5. After completing your adjustment(s), press and hold in the [BAND] key for 1/2 second to save the new setting(s) and exit to normal operation. 1. 2. 3. 4.
Item # Menu Item Function 1 APO Enables/disables the Automatic Power Off feature 2 ARS Enables/disables the Automatic Repeater Shift function 3 ARTS Selects the ARTS mode 4 BEEP Enables/disables the key/button beeper 5 CWID Enables/disables the CW IDer during ARTS operation 6 CWIDW Programming a callsign into the CW IDer 7 DIM Setting the front panel displays illumination level 8 DCS C Setting the DCS code number 9 DCS S Activates the DCS Code Search Scanner 10 DCSNR Selects Normal or Inverted DCS coding 11 DISP Selects the sub band display format 12 DTMFD Setting the DTMF Autodialer delay time 13 DTMFS Setting the DTMF Autodialer sending speed 14 DTMFW Loading of DTMF Autodial memory register(s) 15 LOCK Enables/disables the key/button lock 16 LOCKT Enables/disables the PTT switch lock MIC MUTE PCKT PG P1 PG P2 PG P3 PG P4 RFSQL SCAN SHIFT STEP SPCNT Selects the Microphone type to be used Reduces the audio level on the sub receiver when the main receiver is active Setts the transceivers circuitry for the Packet baud rate to be used Programming the microphones [P1]/[ACC] button assignment Programming the microphones [P2]/[P] button assignment Programming the microphones [P3]/[P1] button assignment Programming the microphones [P4]/[P2] button assignment Adjusts the RF SQL threshold level Selects the Scan-Resume mode Sets the magnitude of the Repeater Shift Setting the synthesizer steps Available Values OFF/0.5 ~ 12.0 hours ON/OFF RANGE/ALL/OFF ON/OFF ON/OFF OFF/DIM 1 ~ DIM standard DCS codes TRX N/RX R/TX R/TRX R FREQ/OFF/DC IN/CW ID 50/250/450/750/1000 ms 50/75/100 ms ON/OFF BAND A/BAND B/BOTH/ OFF MH-42/MH-48 ON/OFF 1200/9600 bps SQL OFF, TCALL, RPTR, PRI, LOW, TONE, MHz, REV, HOME, BAND, VFO/MR S-1/S-5/S-9/S-FULL/OFF BUSY/TIME 0.00 ~ 99.50 MHz 5.0/10.0/12.5/15.0/20.0/ 25.0/50.0 kHz BAND A/BAND B/BOTH/ OFF 50 standard CTCSS Tones OFF/1 ~ 30 minutes ON/OFF ON/OFF AUTO/INH/AM Default OFF ON OFF ON OFF DIM TRX N FREQ 450 ms 50 ms OFF OFF OFF 1200 bps VFO/MR TONE LOW OFF BUSY BOTH 100 Hz 6 minutes OFF OFF AUTO

Defining the audio path to the external speaker (when used) 29 TONEF Setting the CTCSS Tone Frequency 30 TSRCH Activates the CTCSS Tone Search Scanner 31 TOT Sets the Time-Out Timer 32 TXNAR Reducing the MIC Gain (and Deviation) 33 VFOTR Enables/disables the VFO Tracking feature 34 AM Selects the receiving mode (VHF band) : Depens on transceiver version

MENU SELECTION DETAILS

Menu Item 1 [APO] Function: Enables/disables the Automatic Power Off feature. Available Values: 0.5 ~ 12.0 hours (0.5 hour steps), or OFF Default Setting: OFF Menu Item 2 [ARS] Function: Enables/disables the Automatic Repeater Shift function. Available Values: ON/OFF Default Setting: ON Note: This Menu item can be set independently for each band. Menu Item 3 [ARTS] Function: Selects the ARTS mode. Available Values: RANGE/ALL/OFF Default Setting: OFF Note: This Menu item can be set independently for each band. Menu Item 4 [BEEP] Function: Enables/disables the key/button beeper. Available Values: ON/OFF Default Setting: ON Menu Item 5 [CWID] Function: Enables/disables the CW IDer during ARTS operation. Available Values: ON/OFF Default Setting: OFF Menu Item 6 [CWIDW] Function: Programming a callsign into the CW IDer. Menu Item 7 [DIM] Function: Setting the front panel displays illumination level. Available Values: DIM1 ~ DIM7, or OFF Default Setting: DIM1 (Brightest illumination)
Menu Item 8 [DCS C] Function: Setting the DCS code number. Available Values: 104 standard DCS codes Default Setting: 023 Note: This Menu item can be set independently for each band, and independently in each memory. Menu Item 9 [DCS S] Function: Activates the DCS Code Search Scanner.

DCS CODE

Menu Item 10 [DCSNR] Function: Selects Normal or Inverted DCS coding. Available Values: TRX N/RX R/TX R/TRX R Default Setting: TRX N Note 1: This Menu item can be set independently for each band. Note 2: N is normal, R is inverted. Menu Item 11 [DISP] Function: Selects the sub band display format. Available Values: FREQ/OFF/DC IN/CW ID Default Setting: FREQ FREQ: Displays the sub band frequency. OFF: No display. DC IN: Displays the DC supply voltage. CW ID: Displays the CW ID while the ATRS feature is activated. Note: When this Menu selection is set to OFF, the sub band receiver will be disabled. Menu Item 12 [DTMFD] Function: Setting the DTMF Autodialer delay time. Available Values: 50/250/450/750/1000 ms Default Setting: 450 ms Menu Item 13 [DTMFS] Function: Setting the DTMF Autodialer sending speed. Available Values: 50/75/100 ms Default Setting: 50 ms (High Speed)