Eclipse Series RF Technology rfinfo@rftechnology.com.
CONTENTS CONTENTS Contents 1 Operating Instructions 1.1 Front Panel Controls and Indicators 1.1.1 PTT 1.1.2 Line 1.1.3 POWER LED 1.1.4 TX LED 1.1.5 ALARM LED 5 5 5 5 6 6 6 2 Transmitter Internal Jumper Options 2.1 Serial I/O Parameters 2.2 Line Terminators 2.3 Exciter Low Battery Level 2.4 External PA Parameters 2.5 LOOP Volts Select 2.6 Direct Audio (TONE) Select 2.7 Direct Audio (TONE) High Pass Filter Select 2.8 Transmit Time 2.
CONTENTS 6.5 6.6 6.7 6.8 7 The “Deviation” Calibration Procedure The “Tone Deviation” Calibration Procedure The “Line” Calibration Procedure The “Power” Calibration Procedure CONTENTS 31 32 33 34 Specifications 7.1 Overall Description 7.1.1 Channel Capacity 7.1.2 CTCSS 7.1.3 Channel Programming 7.1.4 Channel Selection 7.1.5 Microprocessor 7.2 Physical Configuration 36 36 36 37 37 37 38 38 7.3 Front Panel Controls, Indicators and Test Points 7.3.1 Controls 7.3.2 Indicators 7.3.
1. CONTENTS CONTENTS A Engineering Diagrams A.1 Block Diagram A.2 Circuit Diagrams A.
1 OPERATING INSTRUCTIONS WARNING Changes or modifications not expressly approved by RF Technology could void your authority to operate this equipment. Specifications may vary from those given in this document in accordance with requirements of local authorities. RF Technology equipment is subject to continual improvement and RF Technology reserves the right to change performance and specification without further notice. 1 Operating Instructions 1.1 Front Panel Controls and Indicators 1.1.
1.1.3 1 OPERATING INSTRUCTIONS Power Led LED Flash Cadence 9 flashes, pause 8 flashes, pause 7 flashes, pause 6 flashes, pause 5 flashes, pause 3 flashes, pause 2 flashes, pause 1 flash, pause LED ON continuously Fault Condition External PA failure Low dc supply on External PA External PA Over Current Condition External PA Over Temperature Synthesizer unlocked Unable to communicate with External PA The current channel is not programmed or the frequency is out of range.
2 2 TRANSMITTER INTERNAL JUMPER OPTIONS Transmitter Options There are NO internal jumpers in the T50. There are many software selectable options. Some options are selected on a per channel basis, and some are defined globally (i.e. the parameter is fixed irrespective of which channel is selected). Below is a description of these global parameters 2.1 Serial I/O Parameters There are two serial ports. There is the main serial port which is brought out to the front panel connector.
2.6 Direct Audio (TONE) Select 2 TRANSMITTER INTERNAL JUMPER OPTIONS applied to the pair through 660 ohms of source impedance. (It would be expected, normally, that if this option is selected, then the option to remove the 600 terminator from Line1, would also be selected). If dc current flows from having applied this potential, then the transmitter will key up. 2.6 Direct Audio (TONE) Select Normally any signal applied to the TONE+/TONE- pair is ignored.
3 TRANSMITTER I/O CONNECTIONS Function dc power Serial Communications 600Ω/HiZ Line 600Ω/HiZ Line Signal +28Vdc(in) 0 Vdc +5Vdc(out) +12Vdc(out) SCLK MOSI CH_EN PA_CS SPARE_SEL Line1+ Line1Line2+ Line2- Direct PTT input T/R Relay driver output Sub-Audible Tone Tone+ Input Tone- 3.
4 CHANNEL PROGRAMMING AND OPTION SELECTION 4 Channel Programming and Option Selection Channel and tone frequency programming is most easily accomplished with RF Technology Eclipse50 software. This software can be run on an IBM compatible PC and can be used to calibrate a T50, R50, and PA50 as well as program channel information. See the Eclipse 50 users manual for further information.
4 CHANNEL PROGRAMMING AND OPTION SELECTION Parameter Name Parameter Function Default Value LOW_PWR_ALARM Level of Output Power when 90.0 (% of the low power alarm condition PA_SET_FWD_PWR) occurs (see 2.
4 CHANNEL PROGRAMMING AND OPTION SELECTION Field1: Transmit Frequency (in MHz) if PTT-in is asserted. This is 25.0 MHz in the example. Field2: Transmit Frequency (in MHz) if the exciter is keyed up by anything but PTT-in being asserted. This is 35.0 MHz in the example. Field3: CTCSS Tone (in Hz) if PTT-in is asserted. This is 100Hz in the example. Field4: CTCSS Tone (in Hz) if the exciter is keyed up by anything but PTT-in being asserted. This is 120Hz in the example.
4 CHANNEL PROGRAMMING AND OPTION SELECTION Most Significant BCD digit of Fields 13 or 14 0 1 2 3 4 5 Nominal Tone Deviation 750Hz 500Hz 375Hz 250Hz 150Hz User Specified (default: 600Hz) Table 8: Maximum Tone Deviations (when Max Dev is 5kHz) Note that the actual maximum tone deviations depend on the maximum deviations. If a maximum deviation of 4kHz was chosen, and a nominal tone deviation of 250 Hz, the actual maximum tone deviation would be 250*4.0/5.0 = 200Hz.
5 CIRCUIT DESCRIPTION Note that the external reference frequency is limited to: 500kHz, or any multiple any multiple of 128KHz greater than or equal to 4 any multiple of 160KHz greater than or equal to 3 P1 is the front panel DB9 RS-232 connector for attachment to a terminal, a terminal emulator, or to an IBM PC running the Eclipse50 software. JP2 is for the attachment of an LCD display module. This has been included for later development.
5 CIRCUIT DESCRIPTION FRDY is an output from the flash. It goes low when the Flash starts to write a byte of data, or erase a block, or erase the whole chip, and it returns to its default high state when the action requested has completed. FPSW1 is the switch input from the PTT Test pin. FPSW2, and FPSW3 are two pins that have been reserved for future use as switch inputs. LOOP/VOLTS_SEL is a CPU output that when high applies 12V of dc feed to the audio output.
5 CIRCUIT DESCRIPTION SPARE_SEL is a serial bus select. It has been reserved for future use, and has been brought out to the rear DB25 connector. (see 5.1) CH_EN is a serial bus select. It is brought out to the rear panel and is used to interface to the channel encoder on the rear daughter-board. (See 5.1) Any GPS pulses are isolated from the on-board electronics by the opto-isolator U212. The output of that opto-isolator is then connected to the GPS timer input of the CPU.
5 CIRCUIT DESCRIPTION LOOP_DET is a CPU pin that is asserted low if there is dc loop current detected through the centre tap input of Line2. (See 5.3) FILTER_OFF is a CPU output that is used to by-pass, when low, the low pass filter in the Tone Input Circuitry. (See 5.5) PTT-in is an input from the rear DB25 connector that causes the INT pin of the CPU to be asserted (low) when 1mA of current is drawn via that pin. If PTT-in is pulled to ground, through a resistance of at most 3.
5 CIRCUIT DESCRIPTION 5.3 Audio Processing Section (Sheet 3) Sheet 3 is a schematic, which itself refers to two other sheets. Sheet 3 shows how the two Line inputs go to audio transformers T300 and T301, are then optionally terminated by analogue switches U301B, and U301C, before being passed to the audio input stages described by Sheet 4. It also shows how the Direct Audio (TONE) signal is passed to the Tone circuitry (sheet 5).
5 CIRCUIT DESCRIPTION The outputs of the transconductance amplifiers are buffered by the darlington buffers provided with the amplifiers (U402C, and U402D). The output of each VCA is then amplified by U405B and U405C respectively. The level of amplification of each VCA is adjusted in software in accordance with any adjustments made to the LINE POT.
5 CIRCUIT DESCRIPTION The PWR_CNTRL_RAW DAC output is used to control the bias to the on-board RF amplifier (see Sheet 8). The CPU output pin PWR_CNTRL_HIGH is effectively summed with the DAC output to define three control ranges: State of PWR_CNTRL_HIGH TriState Low (0V) High (5V) PWRCNTRL Voltage Range 2.98 – 5.86 0.6 – 3.0 3.55 - 5.96 Table 9: Power Control Ranges. Note that in practice only the last two power ranges are used.
5 CIRCUIT DESCRIPTION The digital POT performs two functions. It is used to help set the maximum CTCSS tone deviation. It does this in conjunction with U500, as it is also possible for the CTCSS tones that are launched by U500 to be adjusted using software. The second function of the digital POTs is enabled when U301D is enabled. The level of attenuation by the digital POT is adjusted (by software) in line with adjustments made by users to the LINE Potentiometer on the front panel.
5 CIRCUIT DESCRIPTION The bias applied to varactor D600 is a combination of the potentials at two DAC outputs (MOD_ADJ and MOD_ADJ_FINE), plus the modulating signal arriving at MOD_IN (which is the same signal as MOD_OUT in Sheet 3). The summing of these three voltages is performed by U607. The Phase detector output of the PLL chip is then passed through the loop filter network defined by C612, R618, C625, R617, C613, and C718 (see Sheet 7).
5 CIRCUIT DESCRIPTION The FoLD pin, of U604, can be used for many purposes. It can be connected to the output of any of the 4 internal dividers, or be used as a LOCK-DETECT monitor, or as a user programmable output pin. In this circuit it is used as a LOCK-DETECT output when the frequency is being changed, but otherwise it is connected internally to the unused reference divider of U604, to deliver a 400Hz pulse train to FoLD. U604 is set up with a phase detector frequency of 31.25kHz.
5 CIRCUIT DESCRIPTION The user programmable digital output of the DAC (MOD_VCO_EN) is used to enable the modulation VCO (when High) 5.6.5 The VCOs and the RF Output These are more closely described in 5.7, but it is worth noting that there are three primary outputs of the VCOs. There is each VCO output itself, but also the signal VCO_OUT. This is the difference frequency between them. Generally the modulation VCO is set to oscillate at 320MHz. To get an output of 40MHz, the Channel VCO is set to 280MHz.
5 CIRCUIT DESCRIPTION current) if the oscillation level should increase, and similarly the gate bias will reduce if the –ve peaks of the oscillation should reduce. The Modulation bias is also adjusted by the modulation input (2PORT_MOD). This signal is amplified by a VCA. The BALANCE DAC output is converted to a current by U707 and Q700, and that then is used to set the gain of the VCA. The output of the VCA is then attenuated by R725/R729, and this bias is then applied to varactor D701.
5 CIRCUIT DESCRIPTION The external output signal of T/R_RELAY, which is asserted low whenever the exciter is keyed up, is used to switch MOSFET Q706 off. When Q706 is off, amplifier U700 is enabled. When T/R_RELAY is high, then U700 is deprived of bias current and VCO_OUT is then completely disabled. 5.8 1W Broadband HF Power Amplifier (Sheet 8) The HF output of Sheet 7 (VCO_OUT) becomes the primary input to this circuit (RF_IN).
6 FIELD ALIGNMENT PROCEDURE 6.1 Standard Test Condition U908 is set up as an inverter, and uses the 12V rail to create –12V. U909 converts the +12V rail to +5V for all the digital circuitry. The +12V rail is used to power the two on-board relays, as well as up to one extra offboard relay.
6 FIELD ALIGNMENT PROCEDURE 6.2 Invoking the Calibration Procedure The T50 has in-built firmware to perform calibration. This firmware requests the user for information as to meter readings, and/or to attach or adjust the AF signal generator. The firmware based calibration program can be accessed from a terminal, a terminal emulator, or the Eclipse50 terminal emulator. As for Section 4.
6 FIELD ALIGNMENT PROCEDURE Then the exciter low battery alarm level will be asked for. If the current value is acceptable, the User need only hit the Enter key on the keyboard. If another value is preferred, then that value can be typed in. For example: The Exciter's Low Battery Alarm is 24V If this is correct enter , else enter the new value: 26 In this example, the low Battery Alarm level is changed to 26V. The next request for the User should always be ignored.
6 FIELD ALIGNMENT PROCEDURE should be removed and an external reference oscillator should be connected via a 50 ohm probe to J4 (just to the right of the DC voltage regulators and converters).
6 FIELD ALIGNMENT PROCEDURE The user may see the following error message. The Model Name is T50 and the Serial Number is 002313 Please take note of the Model, DAC values, serial number and crystal temperature, and report this problem to RFT Engineering. If this message is seen, it indicates a potential fault condition.
6 FIELD ALIGNMENT PROCEDURE Then the firmware will make the following request. Change the signal generator frequency to 1kHz When this has been done, the User needs to hit the Enter key, and the following will appear again. Enter + or - to increase or decrease the deviation, and when the deviation is 5kHz ? In response to the +, or – keys (or m, p, M, or P), the firmware adjusts the BALANCE VCA accordingly. The user should do this until the deviation is as close to that achieved at 75Hz as possible.
6 FIELD ALIGNMENT PROCEDURE This procedure is similar to the maximum deviation procedure (See 6.5). The Line 1 and Line 2 audio paths are turned off for this procedure, as is the Direct Audio (TONE) input. The only signal sent to the modulator is a tone of 107.2Hz. The program starts off, with the following message: This procedure sets the maximum tone deviations for a Max Deviation of 5kHz. Note that the actual maximum tone deviations automatically scale with the Max Deviation.
6 FIELD ALIGNMENT PROCEDURE ? This is the same mechanism that is used in 6.5 and 6.6. The user enters +, p, or P to increase the Line 1 gain, to increase the deviation, or, -, m, or M to decrease the gain. The user hits the Enter key when the desired deviation is set.
6 FIELD ALIGNMENT PROCEDURE detect. Thus the CPU knows (on power up) what frequencies are, or are not, possible to be used with the PA. The exciter does store some PA specific parameters, such as the Serial Number of the PA, and also some offset values for the pre-amp drain current, and the output stage drain current. These latter offsets improve the accuracy of the over current alarm testing, (but are not strictly necessary).
7.1 Overall Description 7 SPECTFICATIONS Adjust the Forward Power Sense POT (R228) until the measured output power (adjusted for the attenuator and reflectometer losses) is equal to the Preset Forward Power. Enter when done. Unless something has been modified in the power sense circuits, these last three stages should be skipped by simply hitting the Enter key three times.
7 SPECIFICATIONS 7.1.2 CTCSS with channel-setting in the rack, exciter modules may be “hot-jockeyed” or used interchangeably. This can be convenient in maintenance situations. Channel information consists of two independent and complete sets of information, which may differ or be the same.
7.1.5 Microprocessor 7 SPECIFICATIONS 7.1.5. Microprocessor A microprocessor is used to control the synthesizer, tone squelch, PTT functions, external reference monitoring, calibration, fault monitoring and reporting, output power level control, volume adjustment, line selection, option setting, and facilitate channel frequency programming. 7.2 Physical Configuration The transmitter is designed to fit in a 19 inch rack mounted sub-frame. The installed height is 4 RU (178 mm) and the depth is 350 mm.
7 SPECIFICATIONS 7.4.2 7.4.2 Frequency Range and Channel Spacing Frequency Range and Channel Spacing The T50, as a single model, covers the full band, and all channel spacing. Frequency 25 - 50 MHz 7.4.3 25 kHz T50 20kHz 15kHz 12.5 kHz T50 T50 T50 10 kHz T50 7.5 kHz T50 6.25 kHz T50 Frequency Synthesizer Step Size The specified frequency can be any multiple of 1250Hz. 7.4.4 Frequency Stability ±5 ppm over 0 to +60 C, standard ±2 ppm over -20 to +60 C, optional 7.4.
7.4.10 Carrier and Modulation Attack Time 7.4.10 7 SPECIFICATIONS Carrier and Modulation Attack Time Less than 25ms. Certain models have RF envelope attack and decay times controlled in the range 200µs< tr/f <2ms according to regulatory requirements. 7.4.11 Modulation Type - Two point direct FM with optional pre-emphasis Frequency Response - ±1 dB of the selected characteristic from 300-3000Hz Maximum Deviation - Maximum deviation set on a per channel basis to 1.5, 2.0, 2.5, 3.0, 4,0, or 5.0 kHz.
7 SPECIFICATIONS 7.4.20 Channel Select Input/Output 7.4.18 Channel Select Input/Output Coding - 8 lines, BCD coded 00 - 99 Logic Input Levels - Low for <1.5V, High for >3.5V Internal 10K pull down resistors select channel 00 when all inputs are O/C. 7.4.19 DC Remote Keying An opto-coupler input is provided to enable dc loop keying over balanced lines or local connections. The circuit can be connected to operate through the 600Ω line. 7.4.
7.4.25 CTCSS 7.4.23 7 SPECIFICATIONS CTCSS CTCSS tones can be provided by an internal encoder or by an external source connected to the external tone input. The internal CTCSS encoding is provided by a subassembly PCB module. This provides programmable encoding of any tone, accurate to 0.1Hz, including all EIA tones, from 67.0Hz to 257Hz. 7.5 7.5.1 Connectors RF Output Connector BNC connector on the module rear panel. 7.5.
A ENGINEERING DIAGRAMS A Engineering Diagrams There is only one printed circuit board covering all models of the T50. There is only one option for this product, which is the external reference clock option. That option adds a rear connector, and a small length of coaxial cable and a fixed coaxial cable mount to the parts list. Unlike other products in the Eclipse range, CTCSS is no longer an option. All units have the ability to transmit CTCSS tones. A.
T50 PARTS LIST B T50 Parts List Main PCB Assembly Parts Ref Description Part Number C100 C101 C102 C103 C201 C202 C203 C204 C205 C206 C207 C208 C209 C210 C211 C212 C214 C215 C216 C217 C219 C220 C221 C222 C224 C225 C226 C227 C300 C301 C302 C304 C305 C306 C307 C308 C309 C310 C311 C312 C400 C401 C402 C403 C404 C405 Four EMI filters in a 1206 package, 100pF Four EMI filters in a 1206 package, 100pF Four EMI filters in a 1206 package, 100pF Four EMI filters in a 1206 package, 100pF 100nF, 25V, Y5V, decouple
T50 PARTS LIST Ref Description Part Number C406 C407 C408 C409 C410 C411 C412 C413 C414 C415 C416 C417 C418 C419 C422 C423 C425 C426 C427 C428 C500 C501 C502 C503 C506 C507 C508 C509 C510 C511 C513 C514 C515 C516 C600 C601 C602 C603 C604 C605 C606 C607 C608 C609 C610 C611 C612 C613 C614 C615 C616 100nF, 25V, Y5V, decoupler, 0603 100nF, 25V, Y5V, decoupler, 0603 100nF, 25V, Y5V, decoupler, 0603 100nF, 25V, Y5V, decoupler, 0603 100nF, 25V, Y5V, decoupler, 0603 100nF, 25V, Y5V, decoupler, 0603 100nF, 25V,
T50 PARTS LIST Ref Description Part Number C617 C619 C620 C621 C622 C623 C624 C625 C626 C627 C628 C629 C630 C631 C634 C635 C636 C637 C638 C639 C640 C641 C642 C643 C644 C645 C646 C648 C649 C650 C651 C652 C700 C701 C702 C703 C704 C705 C706 C707 C708 C709 C710 C711 C712 C713 C714 C715 C716 C717 C718 100nF, 25V, Y5V, decoupler, 0603 Ceramic Capacitor, 16V, 1uF, Y5V 33pF Cer.
T50 PARTS LIST Ref Description Part Number C719 C720 C721 C722 C723 C724 C725 C726 C727 C728 C729 C730 C731 C732 C733 C734 C735 C736 C737 C738 C739 C740 C742 C743 C745 C746 C747 C748 C749 C750 C751 C752 C753 C754 C755 C756 C757 C758 C759 C760 C761 C762 C763 C764 C765 C770 C771 C772 C773 C774 C775 100nF, 25V, Y5V, decoupler, 0603 10nF Cer. Cap, X7R, 0603, 10% 100nF, 25V, Y5V, decoupler, 0603 100nF, 25V, Y5V, decoupler, 0603 3u3F SMD, Electrolytic cap, A body, 10% 10nF Cer.
T50 PARTS LIST Ref Description Part Number C776 C801 C802 C803 C804 C805 C806 C807 C808 C810 C811 C812 C813 C815 C816 C818 C819 C820 C821 C822 C823 C824 C825 C826 C827 C829 C901 C902 C903 C904 C915 C920 C923 C924 C925 C926 C927 C928 C929 C930 C931 C932 C933 C934 C935 C936 C937 C938 C939 C940 C941 100nF, 25V, Y5V, decoupler, 0603 100nF Cer. Cap, X7R, 1206, 10% 1n2F Cer. Cap, X7R, 0603, 10% 47pF Cer. Cap, NPO, 0603, 5% 470pF Cer. Cap, NPO, 0603, 5% 10nF Cer. Cap, X7R, 0603, 10% 1n2F Cer.
T50 PARTS LIST Ref Description Part Number C942 C943 C944 C945 D102 D103 D104 D200 D202 D203 D300 D301 D302 D303 D304 D305 D306 D307 D400 D401 D402 D403 D500 D501 D502 D503 D600 D601 D700 D701 D703 D704 D800 D906 D907 D908 D909 D910 D911 F300 F301 F302 J1 JP12 JP2 JP3 L100 L101 L102 L104 L200 33uF SMD, low ESR Electrolytic cap, C body 33uF SMD, low ESR Electrolytic cap, C body 33uF SMD, low ESR Electrolytic cap, C body 33uF SMD, low ESR Electrolytic cap, C body Radially mounted LED Radially mounted LED
T50 PARTS LIST Ref Description Part Number L202 L203 L204 L205 L500 L600 L700 L701 L702 L703 L704 L705 L706 L708 L709 L710 L711 L712 L713 L714 L715 L716 L717 L718 L719 L720 L721 L722 L723 L724 L725 L726 L800 L801 L803 L804 L805 L806 L807 L808 L809 L810 L811 L901 L902 L903 L904 L905 L906 L907 L908 Ferrite, 1206 pkg, 600 ohm, 200mA Ferrite, 1206 pkg, 600 ohm, 200mA Ferrite, 1206 pkg, 600 ohm, 200mA Ferrite, 1206 pkg, 600 ohm, 200mA Ferrite, 1206 pkg, 600 ohm, 200mA Ferrite, 1206 pkg, 600 ohm, 200mA 27nH I
T50 PARTS LIST Ref Description Part Number L909 M1 M1C M2 MX700 P1 P3 Q200 Q201 Q202 Q203 Q204 Q205 Q206 Q300 Q301 Q302 Q400 Q401 Q402 Q500 Q501 Q600 Q700 Q701 Q702 Q703 Q704 Q705 Q706 Q707 Q801 Q804 Q805 R100 R101 R102 R103 R104 R105 R201 R202 R203 R204 R205 R206 R207 R208 R209 R210 R211 Ferrite, 1206 pkg, 120 ohm, 3A Tinned BeCu, used as RF screen. RF Screen Cover (Small) Conductive Foam Inserts +7dBm0 Mixer, Surface Mount DB9 Female with filtered pins DB25 Female with filtered pins Gen.
T50 PARTS LIST Ref Description Part Number R212 R213 R214 R215 R216 R217 R218 R219 R220 R221 R222 R223 R224 R225 R226 R227 R228 R229 R230 R231 R232 R233 R234 R235 R236 R237 R238 R239 R240 R241 R242 R243 R244 R245 R300 R301 R302 R303 R304 R305 R306 R307 R308 R309 R310 R311 R312 R313 R314 R315 R316 0805, 1%, 220R resistor 0805, 1%, 1M resistor 1206 180R resistor 0805, 1%, 120R resistor 0805, 1%, 1K resistor 0805, 1%, 1K resistor 0805, 1%, 1K resistor 0805, 1%, 1K resistor 0805, 1%, 1K resistor 0805, 1%, 5
T50 PARTS LIST Ref Description Part Number R317 R318 R319 R320 R321 R322 R323 R324 R325 R326 R327 R328 R329 R330 R331 R332 R333 R335 R336 R400 R401 R402 R403 R404 R405 R406 R407 R408 R409 R410 R411 R412 R413 R414 R415 R416 R417 R418 R419 R420 R421 R422 R423 R424 R425 R426 R427 R428 R429 R430 R431 0805, 1%, 1K resistor 0805, 1%, 120K resistor 0805, 1%, 120K resistor 0805, 1%, 120K resistor 0805, 1%, 68K resistor 0805, 1%, 68K resistor 0805, 1%, 68K resistor 0805, 1%, 1K resistor 0805, 1%, 47K resistor 08
T50 PARTS LIST Ref Description Part Number R432 R433 R434 R435 R436 R437 R438 R439 R440 R442 R443 R444 R445 R446 R447 R448 R449 R450 R451 R452 R453 R454 R455 R456 R457 R458 R459 R460 R461 R462 R463 R464 R465 R466 R467 R500 R501 R502 R503 R504 R505 R506 R507 R508 R509 R510 R511 R512 R513 R514 R516 0805, 1%, 270K resistor 0805, 1%, 270K resistor 0805, 1%, 4K7 resistor 0805, 1%, 1K resistor 0805, 1%, 4K7 resistor 0805, 1%, 47K resistor 0805, 1%, 47K resistor 0805, 1%, 4K7 resistor 0805, 1%, 4K7 resistor 08
T50 PARTS LIST Ref Description Part Number R517 R518 R519 R520 R521 R522 R523 R525 R526 R527 R528 R529 R530 R531 R532 R533 R600 R602 R603 R604 R605 R606 R607 R608 R609 R610 R611 R612 R613 R614 R615 R616 R617 R618 R619 R620 R621 R622 R623 R624 R625 R628 R629 R630 R631 R632 R633 R634 R635 R636 R637 0805, 1%, 47K resistor 0805, 1%, 47K resistor 0805, 1%, 47K resistor 0805, 1%, 47K resistor 0805, 1%, 47K resistor 0805, 1%, 68K resistor 0805, 1%, 1K resistor 0805, 1%, 1K resistor 0805, 1%, 2K2 resistor 0805,
T50 PARTS LIST Ref Description Part Number R638 R639 R646 R647 R648 R649 R650 R700 R701 R702 R703 R704 R705 R706 R707 R708 R709 R710 R711 R713 R714 R715 R716 R717 R718 R719 R720 R722 R723 R724 R725 R726 R727 R729 R730 R731 R732 R733 R734 R735 R736 R737 R738 R739 R740 R741 R742 R743 R744 R745 R802 0805, 1%, 5K6 resistor 0805, 1%, 1K resistor 0805, 1%, 4K7 resistor 0805, 1%, 1K resistor 0805, 1%, 4K7 resistor 0805, 1%, 1K resistor 0805, 1%, 5K6 resistor 0805, 1%, 120R resistor 0805, 1%, 47R resistor 0805,
T50 PARTS LIST Ref Description Part Number R803 R804 R805 R806 R807 R808 R809 R810 R811 R812 R813 R816 R819 R823 R918 R919 R920 R921 R922 R923 R924 R925 R926 R927 R928 R929 R930 R931 R932 R933 R934 R935 R936 RL300 RV100 S200 SW1 T300 T301 TP102 TP300 TP301 TP302 TP303 TP305 TP500 TP501 TP908 TP909 TP910 TP911 0805, 1%, 100R resistor 1206 10R resistor 1206 10R resistor 0805, 1%, 100R resistor 0805, 1%, 100R resistor 0805, 1%, 10R resistor 0805, 1%, 27R resistor 0805, 1%, 10R resistor 0805, 1%, 27R resist
T50 PARTS LIST Ref Description Part Number TP912 TP913 TP914 TP915 TP916 TP917 U201 U202 U203 U204 U205 U207 U208 U209 U212 U300 U301 U302 U303 U400 U401 U402 U403 U404 U405 U406 U407 U500 U502 U503 U600 U601 U602 U603 U604 U605 U606 U607 U608 U700 U701 U702 U703 U704 U705 U706 U707 U800 U906 U907 U908 Test Point Test Point Test Point Test Point Test Point Test Point Quad CMOS RS232 Driver SMD (SO-14) Quad CMOS RS232 Driver SMD (SO-14) Under-voltage sensor and Reset Generator Motorola Embedded 8/16 bit
T50 PARTS LIST Ref Description Part Number U909 U910 Simple (Buck) Switcher, 5V, 1A output LDO Adjustable Positive Voltage Regulator (800mA) Positive Adjustable Voltage Reg. in SO8 package Positive Adjustable Voltage Reg. in SO8 package Positive Adjustable Voltage Reg. in SO8 package Positive Adjustable Voltage Reg. in SO8 package Positive Adjustable Voltage Reg. in SO8 package 14.7456 MHz Crystal, 30ppm, SMD 4.0 MHz Crystal 12.0 MHz Crystal, 5ppm, SMD 12.
C – EIA CTCSS TONES Frequency No Tone 67.0 71.9 74.4 77.0 79.7 82.5 85.4 88.5 91.5 94.8 100.0 103.5 107.2 110.9 114.8 118.8 123.0 127.3 131.8 136.5 141.3 146.2 151.4 156.7 162.2 167.9 173.8 179.9 186.2 192.8 203.5 210.7 218.1 225.7 233.6 241.8 250.
