Down East Microwave Inc. 954 Route 519 Frenchtown, NJ Phone: (Voice) (Fax)

Transcription

1 33cm Transverter Kit DEM Part Number Operatinal Overview The DEM is a 33cm t 2M transmit and receive cnverter. The has a linear utput pwer f apprximately 10 watts. On the receive side, a GaAsFET preamplifier, and interdigital filters prvide a sensitive frnt end with excellent ut f band signal rejectin. The DEM has a built in transmit / receive relay. Optins have been prvided fr a key line input (+1 t 15VDC TTL r PTT t grund) and auxiliary cntacts n either transmit r receive with a cmmn line fr many applicatins. The 2M IF levels are adjustable n bth transmit and receive and have a dynamic range f apprximately 25dB. This is very useful fr adjusting yur maximum utput pwer and setting the "S" meter level n yur IF receiver. IF cnnectins are via BNC cnnectrs. The cntrl, pwer, and auxiliary cnnectins are via RCA jacks, and the 33cm cnnectrs are Type 'N' r BNC (user chice). The is hused in a 8.7" x 5.7" x 2.2" aluminum die cast bx. DEM Operating Specificatins Operating Vltage Current Drain Output Pwer Maximum IF Drive Pwer Receive Nise Figure Cnversin Gain VDC, 13.8 nminal 2.5 amps maximum n Transmit, 350 milliamps n Receive Maximum 9 W linear, 12 watts cmpressed (FM and CW nly) Output has 25 db f adjustable range. Minimum 1 mw (0dBM) fr 10 watts utput pwer. 200 mw (+23 dbm) with 25 db IF adjustment range 1.0 db nminal +17 db nminal (adjustable IF gain) External TR switching cntrl Separate 33cm Transmit and Receive prts PTT L (grund) r PTT H (1-15V) Type 'N' r BNC cnnectrs n 33cm side DEM Optins Assembled and tested 1W and 10W drive ptins available Cnfigured fr External Pwer amplifiers and Pre-amplifiers. Cmmn IF Prt DEM Revisin D 8/15/2011 Page 1

2 Printed Circuit Assembly Ntes: Yur kit is prvided with easy t read placement diagrams that shw the cmpnent layut and the reference designatrs that crrespnd t the prvided cmpnent list. Each side f the printed circuit bard (PCB) is als shwn t eliminate mirrr image assembly errrs. Assembly Tips: Sldering surface munted active cmpnents (transistrs etc.): The DOTS n the MMICs (IC1- IC6 and IC8) determine their rientatin and must be bserved and psitined crrectly prir t sldering. The GaAsFET (Q4) angle cut lead r dt is the Gate side which crrespnds t the "G" n the assembly diagram (See Figure 1). Leads n all active surface munted cmpnents shuld be smewhat flat against the munting surface, if they are nt, a small tl such as a small bladed screw driver can be used t flatten them. (See Figure 2). Align the cmpnent in the prper psitin based n the assembly diagram, ensure that the leads are placed n the circuit trace and d nt ver hang it. Hlding the cmpnent in place, slder ne lead t the circuit and bserve the alignment f all leads. If the alignment is acceptable, slder the remaining leads. Yu need enugh slder t cver the lead and munting surface fr the entire lead length. Additinal amunts results in a smaller slder rll! (See Figure 2 shaded areas) Gate Cut Lead may be cut at an angle 101 Q4 Figure 1 Leads flat t trace, 4 places Sme spring back is OK Slder shwn in shaded areas Slder full length f lead, 4 places PCB Trace Figure 2. Typical side view f fur leaded surface munted device, lead bending clse t bdy Sldering surface munted passive cmpnents (chip resistrs / capacitrs): Determine the cmpnent munting psitin based n the assembly diagram. Withut the cmpnent in place, heat ne side f the munting area and flw a small amunt f slder n it. Place the cmpnent in the crrect psitin per the assembly diagram, it shuld nw have ne end ver the previusly melted slder. Hlding the cmpnent in place with tweezers r ther sldering aid, heat the end with the previusly melted slder and allw it t flw int the slder, nce slidified, remve hlding tl. Nw heat and flw slder t the ther side f the cmpnent and yur dne! DEM Revisin D 8/15/2011 Page 2

3 Sldering leaded cmpnents (resistrs, capacitrs, dides, etc.): Depending n yur available tls, yu can slder yur transverter's leaded cmpnents frm either the tp r bttm f the PCB. It is suggested fr the hme assembler t use a methd that is cmfrtable. A simple hlding vise can be utilized t allw the cmpnents t be 'drpped in' frm the tp side and sldered n this side withut flipping ver the assembly. As an alternate methd, yu can insert ne cmpnent at a time in the crrect munting lcatin and gently push dwn t the circuit bard, while hlding the cmpnent, flip ver the circuit bard and bend the leads ver in ppsite directin t hld the cmpnent in place. Althugh this is the mst reliable methd, there are sme draw backs if the cmpnent must be remved when the PCB is installed in the bx. Rewrk f sldered cmpnents if needed: The easiest methd t rewrk sldered cmpnents is t emply a desldering braid that is specifically designed fr this purpse. It can be purchased at mst electrnics cmpnent distributrs. Place the desldering braid n the lead that yu are remving and apply heat t it. Withut excessive pressure the slder will melt and flw int the braid leaving the lead r cmpnent ready t be remved. The DEM is fairly easy and fun t assemble even fr the first time kit builder and can be cmpleted in any rder that is cmfrtable, hwever DEM Inc. suggests the fllwing assembly prcedure t minimize errrs and pssible frustratin. Surface Munt Cmpnent Suggested Assembly: The assembly peratin shuld begin by rienting the PCB with the assembly diagram. Crrect rientatin can be determined by bserving the ntches n the lng sides f the PCB. The fllwing assembly rder is suggested: Observed plarity using either the DOTS r lead cnfiguratin as explained in the Assembly Tips sectin. 1. Install and slder Q4. See diagram n page 4, step 10 fr prper rientatin f gate lead. 2. Install and slder the balance f the surface munted active cmpnents IC1 - IC6, IC8. Observe yur sldering and cmpnent rientatin ne mre time t ensure everything is crrect. L1, L3 - L6, L10 - L13, L16, L19 must be frmed prir t installatin. The cils shuld be wund arund an apprpriate size mandrel, such as a drill bit. Winding cils is nt an exact science and yu shuld nt be intimidated by it. Using the supplied specified gauge wire (see cmpnent list), extend abut ¼" in a perpendicular directin ff f the mandrel and wind the wire arund it, cunting each revlutin as ne turn. When the ttal number f turns is cmpleted (see the cmpnent list) cut the wire an additinal ¼" beynd the mandrel. Frm the tw ¼" leads s they are pinting in the directin as shwn in the detail belw. 1/4" Slder Tinned Area Slder Tinned Area 1/4" End view f frmed cil Tp view f nrmally frmed cil, (4 turns shwn) Dress the turns tgether if they are ut f shape frm winding, remve the cil frm the mandrel. The cil frming is cmplete! T ensure a psitive slder cnnectin, the ¼" leads shuld have the enamel insulatin remved prir t sldering. This can be accmplished by applying slder t a ht sldering irn tip and placing the lead in the mlten slder, yu will see the insulatin bubble indicating that it has melted (The tinned lead shuld be a silver clr indicating that the insulatin has been remved and the slder has tinned the base metal, if nt repeat the prcess). As an alternative, the enamel can be remved by scraping the ¼" leads with a razr blade until the base cpper is expsed. Slder cat the expsed base cpper. DEM Revisin D 8/15/2011 Page 3

4 Assemble and slder the cmpnents in the fllwing suggested rder while bserving plarities as shwn n the assembly diagram. Nte: Sme leaded cmpnents have their leads sldered directly t the circuit bard by frming the leads dwn as shwn in ne f the figures belw. When devices are frmed and installed as shwn in Figure A it will be nted by this symbl α. When frming is per Figure B it will be nted by this symbl β. Leads sldered t PCB surface This end sldered t PCB surface Circuit Bard Surface Figure A = α Circuit Bard Surface Figure B = β STEP OPERATION and NOTES 1 Install and slder chip capacitrs C1, C3 - C5, C8 - C16, C19 - C21, C27 - C35, C38 - C41, C44 - C48, C51, C53, C56-C58 2 Install and slder chip resistrs R27 and R28 3 Install mixer IC9. Observe plarity dt n cver. Please refer t drawing n page 13 fr crrect placement. Slder all six leads. 4 Install and slder C2, variable capacitr. 5 Frm, install and slder (D1α), D2 - D6 Nte: Ensure prper plarity 6 Frm, install and slder L2, L7 - L9, (L17α) mlded inductrs 7 Frm, install and slder leaded resistrs including R14 and R16. Resistrs are thru hle unless specified. (R9, R10, R24, R30 - R32 = β) (R20 - R22 = α) 8 Frm, install and slder all leaded capacitrs Nte: Ensure prper plarity n Tantalums 9 Install and slder Q1, Q2, Q5, VR1 - VR3 Nte: Ensure prper plarity 10 Install L1, L3 - L6, L10 - L13, L16, L19 Nte: One end f L16 must be sldered directly t the GaAs FET Gate lead. Slder cil t Gate lead Side view f Q4 with cil n Gate 11 Install Y1 Crystal 12 Install Relays K1, K2 If the transceiver being used fr IF prvides a key line t grund n transmit select the PTT-L ptin. If the transceiver prvides a psitive vltage in transmit select the PTT-H ptin. Cnsult yur transceiver's manual fr details. Install and slder wires in the areas n the bard as shwn in the table belw. Refer t Tp and Bttm side PCB drawings. Nte 1: Strip and tin ¼" frm each end f the wires. Nte 2: Flying Leads are wires that will be cnnected later in the assembly prcess. WIRE LOCATION FROM TO SIZE #28 Tefln Bttm Side E4 13.8SW near K1 3¼" #28 Tefln Bttm Side E1 TR near K1 3½" #28 Tefln Bttm Side E SW near VR1 4¾" #28 Tefln Bttm Side E5 E2 2.0 #28 Tefln Bttm Side E4 Flying lead 7.5" #28 Tefln Bttm Side E5 Flying lead 4.0" #28 Tefln Tp Side Either PTT-L r PTT-H Flying lead 2¼" #20 BUSS Wire Tp Side RXIF Flying Lead 1¼" #20 BUSS Wire Tp Side TXIF Flying Lead 1¼" DEM Revisin D 8/15/2011 Page 4

5 Trim all leads and wires n the bttm side flush wit the surface f the bard. Lk ver yur wrk fr slder bridging t adjacent traces, mis-installed cmpnents, and prtruding leads that may shrt t the enclsure f the installatin f the PCB. The printed circuit bard is nw cmplete. PCB assembly int the external bx. The external bx is pre-drilled at the factry fr yur cnvenience. If nt already dne, remve the cver frm the bx and wipe the inside clean t remve any remaining metal particles that may have been trapped during drilling. Ntice that the bx and the circuit bard have crrespnding hles which are directinal and must be aligned crrectly. Please nte the tw hles fr munting Installatin in the bx is easy if the suggested assembly steps are fllwed. Place ne screw in a PCB pre-drilled munting hle frm the bttm side f the bx. While hlding the screw in start a 4-40 nut n the screw threads inside f the bx and tighten. Repeat fr the balance f nine (9) PCB munting screws. Prepare the N cnnectr as fllws t establish final pin length: If yur supplied N cnnectr has a "O" ring seal, remve and discard. Insert the cnnectr s it is flush t the bx in the prper munting hle (See Figure 4 fr lcatin). Place a razr blade n the extended Tefln, using the bx wall as a guide, rtate the cnnectr allwing the razr blade t penetrate int the Tefln. When the blade reaches the metal center pin, remve the Tefln slug. With a large side cutter, cut the center pin t apprximately 1/8" beynd the Tefln. Frm the #4 grund lug as shwn belw prir t installing. Munt the prepared N cnnectr using fur 4-40 x 5/16" screws. The screws shuld be inserted frm utside f the bx. Psitin this s the frmed end is facing ut and is facing the center pin f the N cnnectr. Install the remaining screws and nuts. Start by installing the lwer right crner screw with a #4 lug as depicted in figure #3. The caxial cable will be installed later in the assembly. Prepare the #4 slder lug as shwn prir t installing Tp View f #4 Slder Lug, Bend at Dtted Line Slder cax center cnductr t N cnnectr pin Side View f #4 frmed Slder Lug Place cax in frmed lug hle and slder shield t lug #4 Slder lug #4 Screw/Nut 4 places PCB MOUNTNG AREA RG/188 cax frm PWB "ANT" Figure 3 Inside View f Bx, Slder Lug Installatin n the 'N' Cnnectr DEM Revisin D 8/15/2011 Page 5

6 Install the remaining rear wall munted cnnectrs, lcatin per Figure 4: 2 - BNC cnnectrs at the RX and TX psitins using the supplied 3/8" nuts. If washers are supplied, install them n the inside f the bx. If yu have difficulty tightening the cnnectr, cnnect an adapter r cable cnnectr and hld this while tightening t keep it frm spinning. 1 - BNC cnnectr at the AUX. (3/8" Hle) psitin as in step ne (1), under the nut place the 3/8" slder lug. Bend the lug away frm the wall t frm right angle. This AUX. cnnectr is used with the separate transmit and receive ptin. 3 - RCA cnnectrs fr AUX., CON and 13.8VDC using the supplied hardware. Bth the flat washer and the slder lug shuld be installed n the inside. Pst tightening, the lug shuld be bent away frm the wall. IF 13.8 VDC ANT AUX AUX PTT H - L RX TX OPENING IN BOX Figure 4 Jack Munting Psitins Outside View Using cautin nt t pinch the bttm side wires, place the finished circuit bard ver the ten (10) 4-40 screw / nut cmbinatin and gently push flat against the nuts. Place tw nuts n ppsite crners n the screws extending thrugh the PCB and tighten evenly. Munt switch (SW1) in the hle labeled "POWER" using the supplied hardware. Cnnect the #28 Tefln wire t the wall munted RCA PTT H- L jack, then cnnect a 1000pF capacitr between the center pin and slder lug and slder bth leads. (See Figure 4 fr jack lcatin). Cnnect and slder a 1000pF capacitr between the center pin and the slder lug n the AUX. RCA jack. Cnnect and slder a #18 Tefln wire frm the wall munted 13.8 VDC jack t the middle terminal n the wall munted switch and slder. (See Figure 4 fr jack lcatin) Nte: The lnger lead n the LED is psitive. Prepare bth LED's by supprting the SHORT lead (negative) at the LED bdy, bend the lead 90º away frm the lnger lead. Place bth the "ON" LED and the XMIT LED in their crrespnding wall munting hle (see Figure 5). Place the previusly frmed lead n a grund via hle at the edge f bard and slder. Place the ther psitive lead f the XMIT LED n a 13.8SW via hle. Cnnect the wire frm the tp terminal n the switch t the PCB pad lcated belw the Switch label 13.8SW Tggle Directin OPENING IN BOX XMIT ON POWER DEM Revisin D 8/15/2011 Page 6

7 Figure 5 Switch / LED Munting Psitins Electrical Test Verificatin: Receiver Testing: The fllwing infrmatin is prvided t electrically pretest the transverter prir t final assembly. If yu have a frequency cunter it wuld be helpful but is nt mandatry. Apply 13.8 vlts t the RCA DC Pwer jack. The center pin is psitive. Turn n the pwer switch, the transverter will nw be in the receive mde. The ON LED shuld light up. Check the vltages in the rder shwn, then cntinue by checking the scillatr sectin. Die cast bx is grund. MODE LOCATION VOLTAGE reference t Grund RX +13.8SW near K r input line vltage RX Output lead f IC VDC RX Output lead f IC2 5.0± 1VDC RX Output lead f IC3 5.0± 1VDC RX Output lead f IC4 5.0± 1VDC RX Junctin f VR1 & C6 8.0± 1VDC RX Junctin f R8 & L3 5.0± 1VDC RX Junctin f R30 & Q4 Drain Lead VDC, -0.2VDC Due t variances in the GaAs FET devices yu may need t adjust the Drain current. Optimal perfrmance nrmally ccurs between 20 & 30 ma as measured acrss R30 (150Ω) as I = E 150. If the current exceeds 30 ma remve either R27 r R28. Lcal Oscillatr Testing: Cnnect the psitive lead f a Vltmeter t the R6 / C8 junctin. Adjust C2 fr maximum vltage, nte where the capacitr is psitined. A midrange psitin is preferred (see diagram belw). If the capacitr is at the maximum psitin, spread cil L1 1 t 2 turns and readjust C2 fr maximum vltage, the capacitr shuld be near midrange, if nt repeat. If the capacitr is at minimum psitin, repeat prcess but this time cmpress cil L1. And if necessary, yu may need t wind a new cil with an extra turn and replace. The final vltage shuld be apprximately >1.0V. If nly a lw frequency meter is available prbe the input lead f IC1 and tune C2 fr MHz. If a 1GHz cunter is available prbe the LO input f IC9 and Tune C2 fr MHz. See figure 9 n page 13. If the vltage r frequency can nt be btained, check all cmpnents in the scillatr circuit fr prper installatin. Midrange Slder Jint Psitin Maximum Minimum C2 Capacitance Psitin DEM Revisin D 8/15/2011 Page 7

8 Transmitter Testing: The vltage check list belw is fr the transverter in the transmit mde. T place the transverter int the transmit mde depending n hw yur transverter is cnfigured, apply PTT L r H signals. MODE LOCATION VOLTAGE (Reference t Grund unless Specified) TX Relay K1 r K2 Audible Click TX Junctin f R21 & IC5 5.0±1VDC TX Junctin f R22 & L13 5.0±1VDC TX Junctin f R23 & R24 3.5±0.5VDC TX Junctin f D4 & L10 0.8±0.1VDC *** DO NOT PROCEED UNTIL THE ABOVE CHECK POINTS ARE VERIFIED *** Once check pints are verified, install the remaining nine 4-40 nuts n the screws hlding the PCB. Sme screws may require a smaller diameter nut t prevent shrting t active circuitry (by IC3, IC7 and IC9), see cmpnent layut. POWER MODULE INSTALLATION Place the pwer mdule (IC7) n the bx flr in its munting lcatin (see assembly drawing) and trim the leads s they d nt extend past the slder pads, they will be apprximately 3/8" lng nce trimmed, remve. Wipe the munting surfaces f the bx flr and flange f IC7, verify the surfaces are free f any freign matter befre applying a thin even cating f thermal cmpund t the munting flange. Place IC7 n the bx flr and lining up the leads with the slder pads f the circuit bard. Install tw 4-40 x 3/8" screws thrugh the bx, like the PCB munting screws. Inside f the bx place 2 #4 grund lug n tp f IC7 s flange. Install and tighten evenly the 4-40 nuts (see TOP View PCB diagram). Frm the leads f IC7 flat t the slder pads, slder all leads t the circuit bard. Thermal Cmpund can be purchased at mst electrnics cmpnent stres DEM Revisin D 8/15/2011 Page 8

9 PCB assembly int the external bx, cntinued Cnnect a piece f #18 Tefln wire frm the 13.8SW pad belw SW1 pwer switch and slder, rute the wire t the pad labeled +13.8SW near the pwer utput mdule and slder t the surface. Be sure t lp the wire up and away frm the PCB. Cnnect and slder the 100µF capacitr t the 13.8VDC jack, bserved plarity, psitive lead t the center pin, negative t the ring grund terminal. Slder the #20 BUSS wire frm the PCB slder pad labeled RXIF t the BNC RX/IF jack and slder. Slder the #20 BUSS wire frm the PCB slder pad labeled TXIF t the BNC TX/IF jack and slder. The fllwing assembly rder is recmmended fr cmpletin f the transverter fr cmmn RX/TX cnnectr. Fr split TX / RX refer t sectin 1 f DEM user ptins. Prepare the cmmn utput caxial cable as fllws: (See Figure 6) Cut the cax 2" t 2 1/32" Remve the uter insulatin 1/4" frm each end. Remve the braided shield 1/8" frm each side. Remve the center cnductr insulatin frm each end allwing an extensin ut f the remaining shield. Push the center cnductr f the un tinned end thrugh the hle in the slder lug f the ANT cnnectr and allw the shield t penetrate the grund lug hle. If nt s bend grund lug twards the N cnnectr center pin t accmmdate cax (See figure 3). Slder the shield t the slder lug, then slder the center cnductr t the N cnnectr center pin. Slder tin the center cnductr n bth ends and slder tin the shield n ne end. Psitin the end with the pre-tinned shield n the circuit bard by placing the center cnductr n the circuit sldering pad labeled "ANT". This circuit is lcated near relay labeled K1. Angle the cax s that it is facing capacitrs C38 and C44. (See Figure 7) Slder the shield t the grund area adjacent t the "ANT" sldering pad, then slder the center cnductr in the "ANT" sldering pad. Yu may use the BNC cnnectr instead f the N cnnectr. Remember t slder the cax's shield t the slder lug n the BNC cnnectr. ~ /32" 1/4" 1/4" <=Shield Figure 6 Cable shwn brken fr clarity C38 C44 K1 RG/188 COAX CABLE ANT Figure 7 Caxial Cable munting n PCB shaded areas are slder pints DEM Revisin D 8/15/2011 Page 9

10 Transverter Final Tune Up The assembly prtin f yur kit is cmplete, yu will nw prceed with the final tune up as fllws after cnnecting yur transverter t yur IF rig: 1. Set R14 t maximum attenuatin by turning fully cunter-clckwise. 2. Set R16 t the minimum attenuatin by turning fully clckwise. 3. Cnnect the transverter IF prts t yur 2M transceiver system using 50Ω cables. Cnnect the PTT circuit t yur transceiver PTT circuit (High f Lw t grund). Set the frequency f the transceiver t the WSS prtin t the band. 4. Cnnect 13.8V t the transverter, turn n the pwer switch, the pwer LED shuld be lighted and the transmit LED shuld be extinguished. 5. Place an Antenna r Generatr n the RF cnnectr and cnfirm increase in receiver nise by switching the pwer On and Off. N further adjustment shuld be required t the receiver sectin if Electrical Test Verificatin was cnfirmed. Nte: If the receiver is t be aligned n a nise figure meter, L16 can be "tweaked" fr desired nise figure and gain. 6. Yur "On the air n signal present" 'S' meter resting psitin can nw be set by adjusting R16. This cntrl adjust the 144MHz RXIF gain. 7. If yu have a pwer meter r an in-line frward SWR meter available fr the rated utput frequency and pwer level cnnect it t the antenna jack. 8. Unless there is the crrect amunt f attenuatin between yur 2M transceiver and the TXIF prt; d nt apply mre than 200mW. Change the transceiver t the CW psitin with the carrier level set t minimum. 9. Switch the transceiver int the transmit mde. While bserving the pwer meter slwly increase the carrier cntrl t maximum keeping the transverter pwer utput belw 10 watts. 10. If the carrier cntrl is at the maximum and the pwer utput is nt at the desired pwer level slwly turn R14 t increase r decrease the utput pwer. 11. If pwer utput is lw cnnect an Ampere meter in line with the pwer surce t the transverter. If the current level in transmit mde is under Amperes, make sure that R14 is fully clck wise if s, the IF TX level shuld be verified t ensure that it is apprximately 10mW. If current cnsumptin is belw this value, the transverter may be under driven. CAUTION: With R14 in the minimum attenuatin psitin DO NOT EXCEED 20mW MAXIMUM. If prper pwer utput and current cnsumptin still can nt be btained check all cnnectins and vltages. If yu feel that yur transverter is nt living up t it's specificatins, please cnsult the factry after verifying all vltages, cmpnents and IF drive level. If yu need external switching fr relays r pwer amplifiers this can be accmplished via Relay K2 and the RCA Auxiliary cnnectr. Cnsult the DEM supplied schematic fr switching details. 12. Put the tp n the enclsure and install the screws. 13. Attach the 3/8" adhesive backed rubber feet t the cver. 14. Attach the supplied jack / switch labels t the bx by first cleaning the munting surface with a multi-purpse husehld surface cleaner. Use figure 4 and 5 fr placement lcatin. DEM Revisin D 8/15/2011 Page 10

11 DEM User Optins 1. Split RX / TX cnnectrs T perate with split TX / RX cnnectrs it is necessary t perfrm the fllwing mdificatin, it is recmmended by that the 'N' cnnectr be used n the receive side: 1. Remve chip capacitr C35 and C Prepare tw pieces f RG/188 cax, ne as shwn in Figure 6 f the DEM assembly dcuments. The ther shuld be prepared as shwn in Figure 6 with the exceptin that the cut length shuld be 3 1/8" 3. Attachment t the circuit bard will be per the figure belw. 4. Rute the RX cable t the N cnnectr and attach and slder as shwn in figure 3 f the DEM assembly dcuments. 5. Rute the TX cable t the BNC cnnectr and slder the center cnductr t the pin f the cnnectr. Als, slder the shield t the slder lug installed n this cnnectr. TO "N" CONNECTOR 13.8SW TR RG/188 COAX CABLE L17 C 38 C44 Q4 L16 K1 ANT C35 TO "BNC" CONNECTOR RG/188 COAX CABLE DEM Revisin D 8/15/2011 Page 11

12 DEM Cmpnent List BAG 1 CONTENTS: Resistrs (R) values are in Ohms and are ¼W unless therwise specified. Chip resistrs are attached n a separate card in Bag 2. BAG 1 R1 470 R R19 1K R32 1K R2 680 R /2W R20 1K R33 5.1K R3 1.5K R12 1K R R34 1K R4 100 R R /2W R35 1K R5 47 R14 1K POT R R R6 100 R R R37 1K R7 470 R16 1K POT R R /2W R R R9 470 R R /2W BAG 2 CONTENTS: - All capacitrs are surface munted chips and the values are pf unless therwise specified. "Tant leaded" = Tantalum Electrlytic leaded "Trimmer" = Variables BAG 2 C C Leaded C43 3.3µF Tant leaded C2 1-6 Trimmer C Leaded C44 22 C C Leaded C ATC Type C4 15 C Leaded C ATC Type C5 39 C Leaded C47 22 C6 3.3µF Tant leaded C27 22 C C7 3.3µF Tant leaded C28 22 C49 3.3µF Tant leaded C C29 22 C50 3.3µF Tant leaded C C30 22 C51 22 C C31 22 C Leaded C11 2 C32 0.1µF C53 22 C12 15 C33 22 C54 3.3µF Tant leaded C13 15 C34 0.1µF C55 3.3µF Tant leaded C14 22 C35 22 C56 0.1µF C15 22 C38 22 C57 15 C16 0.1µF C C58 15 C19 0.1µF C40 0.1µF R27,R28 75Ω C20 22 C D4 HP3894 Dide Pair C21 22 C42 3.3µF Tant Leaded Hand wund (HW) inductrs are clse wund, with enamel wire size as specified belw. All mlded chkes have GOLD and SILVER multiplier and tlerance bands. Please identify desired value by the significant clr band cmbinatin. BAG 3 L1 9 Turns 1/8" ID #24 Wire (HW) L10 4 Turns 1/16"ID #28 Wire (HW) L2 0.33µH (ORANGE/ORANGE) L11 4 Turns 1/16"ID #28 Wire (HW) L3 8 Turns 1/8" ID #24 Wire (HW) L12 4 Turns 1/16"ID #28 Wire (HW) L4 8 Turns 1/8" ID #24 Wire (HW) L13 8 Turns 1/8" ID #24 Wire (HW) L5 6 Turns 1/8" ID #24 Wire (HW) L16 7 Turns 1/16"ID #28 Wire (HW) L6 8 Turns 1/8" ID #24 Wire (HW) L µH (ORANGE/ORANGE) small bdy L7 0.10µH (BLACK/BROWN) L19 4 Turns 1/8 ID #24 Wire (HW) L8 2.7µH (RED/PURPLE) #24 Enamel Wire 2' L9 2.7µH (RED/PURPLE) #28 Enamel Wire 1' DEM Revisin D 8/15/2011 Page 12

13 DEM Cmpnent List BAG 4 Q1 MPS5179 IC1 MAR3 Q2 MPS5179 IC2 MAR1 Q4 Selected GaAsFET with ATF prefix IC3 MAR2 Q5 2N2222 IC4 MAR4 D1 HP (Glass Dide) IC5 MAR3 D2 MPN3404 (see Fig. 8) IC6 MAV11 D3 MPN3404 IC8 INA10386 D5 1N914 (Glass Dide) r 1N4148 VR1 78L08 D6 1N4000 Type Dide VR2 78L05 IC9 LRFMS-4 Mixer VR3 78L05 Y1 Crystal MHz HC 18/U K1 G5Y #28 Tefln Wire 3' Length K2 G5V HARDWARE KIT (2) 1000pF Capacitr Leaded #20 BUSS Wire 4" (1) 100µF Capacitr Leaded #18 Tefln Wire 1' (2) LED, RED RG/188U Mini Cax 6" (1) SW1 Pwer Switch SPST (1) Eagle Large Bx (1) 3/8" Slder Lug (1) 330 Ohm 1/4 Watt (3) BNC Female UG1094/U Cnnectrs (1) 1K Ohm 1/4 Watt (3) RCA Jacks (Cntrl, Aux., Pwer) (2) #4 Lng Lug (4) 4-40 x 5/16" Machine Screw fr "N" cnnectr (1) Label, Frnt "XMIT, ON, POWER" (1) Type "N" cnnectr (1) Label, Rear "13.8VDC, ANT RX, TX" (26) 4-40 Nuts (1 smaller diameter) (1) Label, Rear "CONTROL, AUX, RX IF TX" (12) 4-40 x 3/8" Pan Head Screws (4) Adhesive Backed Rubber Feet (1) #4 Slder Lug (Installed n "N" cnnectr) Miscellaneus Lse Parts: 1. RF Pwer Mdule IC7, PF0031 r PF Printed Circuit Bard MPN3404 dide RF IF LO Make sure t place the mixer exactly between the hles t prevent any shrt. Cathde Figure 9 IC9 (LRFMS-4 Mixer) placement Figure 8 DEM Revisin D 8/15/2011 Page 13

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