VCO Freq. at band edge** 6715 (subtract) 8415 (subtract)

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1 Band Relay Table ET Relays BPF LPF VCO 0m K 0mK 0m K, K K 0m K, 0mK K *0m ALT K K 0m K K 0m K, K K 0m K K m K K m K, K K m K, K K0 0m K K0 K K, K K, K K K, K K, K, K K, K K K, K, K K, K N000 ZVN iodes MV0, V Nxxxx Transistors N0 PNA N0 MP J0 C C C 0 meters is available only if the K0XV option is installed. *0m ALT applies if 0 are not installed. NOTE: All relays are singlecoil latching type and are shown in the REET position in schematics. Relay pins and are not connected internally. E B C C E B Integrated Circuits B C E Band Fixed Cap., pf 0m C (0) 0m C (0) 0m CC () ***0m ALT CC () 0m C (0) 0m CC () 0m C (0) m none (0) m C () m C (0) 0m none (0) VCO Table Total Cap., pf* VCO Freq. at band edge** (subtract) (subtract) 0 (subtract) (subtract) (subtract) (subtract) (subtract) (subtract) 0 (add) (add) 0 (add) * This includes capacitance of varactor diodes on all bands, on 0 0 m, and 0 on 0 and 0 meters (if applicable). Only a portion of the indicated capacitance range is actually used to cover each Amateur band segment. VCO frequency can be calculated based on a total inductance of 0. µh (T in parallel with L0). ** Based on an I.F. of khz (e.g., = 00). 0 khz used as 0meter lower band edge (pending U.. FCC ruling). ***0m ALT applies if 0 are not installed. PLATIC IP (UALLE PACKAE) COUNT P TART AT P AN O COUNTER CLOCKWIE (P IP HOWN) pecial ymbols = On bottom of PC board. VOLTAE REULATOR L0, 0 N By W. Burdick E.wartz 0T, XX N Jumper N K chematic Key Rev. ate 0//0 ht. of

2 Backlight LEs VIMP IIT LC LC river U PCF (0 through connected to ; only 0 and shown) PRE/ATTN AC XFIL POT CW REV AFIL # # # LE Array (based on LE Vf=.V) Pushbutton witches First switch label corresponds to switch TAP, econd label corresponds to switch HOL. U B U B haft Encoder To RF Board, P R K Keyer peed R K Power Out K (audio taper) R K R.F. ain R K RIT/XIT Offset K Front Panel Board H/L H 0 ER QH /QH VCC N (spare) U HC /P R R.K, % /MIC R R WRT /MIC R PNA B,C,P F,E,AN B,C,P F,E,AN B,C,P F,E,AN B,C,P F,E,AN B,C,P F,E,AN B,C,P F,E,AN B,C,P F,E,AN B,C,P F,E,AN BAN IPLAY RECALL RF/ALC /R R R CK R A Q N0 N R R WRT /R R VCC / Q 0 / /Q RCK /Q /RCLR /Q RCK /Q /Q N /Q N /Q 0 N VCC / Q 0 / /Q RCK /Q /RCLR /Q RCK /Q /Q N /Q N /Q 0 N /BANK /P R /NIHT V POT (NC) ANT/ TUNE /BANK /BANK /BANK A,, A,, A,, A,, A,, A,, A,, A,, /BANK By W. Burdick Rev. ate ht. E. wartz C 0//0 of IAT R CK R CK /YNC BAN TORE MOE A/B A=B VOX REV 0 PLIT # # # C.0 MENU NB RATE LOCK EIT LEVEL # 0 0 RP IAT 00K V FUNC.K.K R 00K COM COM COM COM COM COM 0 0 BP BP BP BP0 VLC V A0 OC V CL A RP 0 R 0 RIT XIT M PF PF REC # # # C c c c c R R 0 R 0 R c J Mic PTT N N C C C C C RP 0K RP 0K RP RP 0K 0 A A A0 A 0 0 R AF ain A V V Z A B C E F H 0 0 C A 0 AF N UP V A 0 0 J A A A 0 Q Q 0 0 A R R A A B Bargraph Brightness Control R R K 0K C.0 V POT V POT R.0V AY (ma/le).v NIHT (ma/le) A P Mic Config. MIC AF /OTPTT /BANK /BANK /BANK can also be used as a numeric keypad. /ENC R These components are supplied with B adapter.

3 TX C.00 Freq. Ctr Input 00kHz0MHz Voltmeter Input C0 P RX R C N 0K, % K, % /AC OFF U NE0 Aux I/O P R0 C.0 V R V X.0MHz C 0 P A nc 0 I.F. C C T V V RFET Voltmeter ource EXT T P C V PWR RP K MP Voltage ense AC c C UB Q R RP N K ALC RP 0 C 0 0.V (0.V res.) V ENE R 0K C MP A (.0 A resolution) C.µF I ENE RP K RP.K C R.F. A C.0 RP K Q0 R 00 % V U0A RP 0 LMC0 C RP K V FCTR Current ense Note: Current sense resistor is R on the RF board. Q PNA.00 COUNT R.k, % P To RF Board, J C C 0.000MHz UA LMCA V MTR R K Q 0 PNA A R 0K N C UB.00 RP.K R R A.M UA LM R 0K AC THR. RP.K /LOW AC RP.K C 0.µF V AC Q PNA RP.K NOTE : Jumpers are used at R and R. They must be removed if the Audio Filter option is installed. C 0. C 0. R.K R 0 A X V V MTR /LOW AC C µf V POT /MUTE /ACC C.0 A /PLLC V Lowropout Reg. C.00 V A A V A A I ENE V ENE /AC OFF A CK LM0T U N U 0 V Reg. V RFET IAT /R R C M0 N R R CK R WRT V POT C 00µF R V 0 C.0 To RF Board, J IAT /R R R R CK R WRT R A /OTPTT /AH C.0 V BIAXFIL RP K V PWR /ACC Q N0 RP.K Q N0 P P MCLR RA0 RA RA RA RA RA RE0 RE 0 RE V V OC OC RC0 RC 0 RC RC R0 R RC RC R R U C MCU 0 RB RB RB RB RB RB RB RB0 V V 0 R R R R RC RC R R A A T T RX TX TX 0 R 00 A A P RX C.00 RP K C0.00 /EEC V witching RP.K VOL VOL P TONEVOL VOL RP K Quad, bit AC B C A REF AN UPO V PE N /LAC 0 /CLR /C 0 = on bottom of PC board T R U MAX Q N000 Q /ACC Q N000 /C VCC O /HOL /WP V CK I U LC0 EEPROM /PLLC /OTPTT R K /AH To RF Board, J CK 0 RX O 0 C.00 RP K RP K TX RP.K A RP K A A CK O R 0 Ω Mute VOL C RP K A (NOTE ) C Q J0 P AF Amp U LM0N RP K C.00 C0 A U0 RP K RP K 0 V BIAXFIL RP 0 U0C K RP K C 0. VOL /MUTE R0.Ω C0.0 C 0µF A u d i o F i l t e r V J J C NC BYPA v N N R.M C.0 C µf C 0µF By W. Burdick Rev. E. wartz C LMC0 C.µF U0B C 0. P L mh R 0 R 0 Ω Q J0 VOL V IETONE RP 0 K Control Board ate ht. 0//0 of RP 0 0

4 PLL ynthesizer PLL Reference Oscillator MHz RFC (NOTE ) C.0MHz X B Q B B TP C 00 µh C J R N RP OC V 0K K OC PH V L X C 0µH 0. R (NOTE ) REF PH R C R R.M 0 F P R.K.K 00K O V RP C C /PLLC /ENB L 0K UB 0 0 C CK FV LMC.0 RP RFC FR RP 0K 0K µh U C MV0 V MC0 0µF R K R0 0K 0 C00 R.00 0 (NOTE ) K R0 0 C µf RFC0 mh R 0K R 0K nc L0.µH R K B C 0pF VFO R 00K T.µH C C 0. N N B R Q J0 C.00 R 0K C R 0K R 0 C 0. TX VFO R 0 B Buffer U LT RX VFO TP U LTC CK VCC O V /ACC L /C REF N Bit AC (Vout = 0 to.0v) RP 0K B B RP 0K UA LMC A RFC µh B C C0 0µF U L0 C0.0 0 MV0 B C.00 C (NOTE ) K C 0 nc C 0 C C 0 V C0 00µF VFO Range election Relays are shown in REET position. ee relay table (key). Q N000 R 00K Q PNA R M VFO ALC N C 0. R0 0 R 00K ~Vpp C C Key/Keyer/Paddle J R R 0 0 C C /AH /OTPTT R R C0 C0.µF.µF C o n t r o l B o a r d J R I.F. V AC R.F. A P J V A A V A A V RFET IAT R 0 /R R R CK R WRT V POT R V BIAXFIL V R T P 0 0 T P F r o n t P a n e l B o a r d 0 0 R J VOL VOL /ACC /OTPTT CK 0 0 VOL /PLLC /AH O R R V R 0.0Ω, %, W Current ense J V C P Aux. V V ON OFF C.0 0 Q0 F RE00 Power B0 J Phones peaker P VOL VOL VOL /OTPTT MIC AF R R R WRT R CK /R R V POT IAT A R.F. A NOTE : X is not used. NOTE : If 0 are installed, C must be changed to pf, and the "" menu entry set to "Y". NOTE : These components are not present on the Rev B or earlier RF board, but must be added (see text). T C.µF Q N000 K RF Board By W. Burdick Rev. ate E. wartz C 0//0 ht. of

5 BPF (h. ) KA KA KA KA KA C 00 0m/0m 0m/0m 0m/m m/m 0/0m C0 C L. pf.µh 0/0m C C C0 0 C 00 C 0 C C 0 C 0pF C C 0pF /m 0pF C. C µh C C C C L.µH 0 L0 µh L.µH C.pF 0/0m L C 0pF C C L L µh 0/m µh BandPass Filters C J 0m L.µH K K L.µH C 0pF L µh 0pF C 00 C 0 C C 0 C 00 L.µH C C 0 C C 0 ALL RELAY BYPA CAPACITOR ARE.00µF C, C, C, C0, C0, C, C NOTE: Pins and of relays are not connected internally. However, these pins may be connected to other relay pins or to other components on either side of the PC board. KB KB KB KB KB K K K C.00 K K C.00 V X v e r t e r I n t e r f a c e XVTR Bypass VCO Relays Z.0MHz Pre/Attn. Relays R W RFC µh C0 U L0 0 0 C X T N00 R K N00 PRERIVER V V (h. ) C0 C T C0 C 0. J 0RY RXRY /CLA AB R RFC 00µH V RY COM N00 PICC or F MCLR RA0 RA RA RA RA RA V OC 0 OC RC0 RC T R U C0 RFC 00µH C0 C0 TR witch RB RB RB RB RB RB RB RB0 0 V V RC RC R.K I/O Controller RC RC RC RC HI IP C0 N00 R 00K R 00 C0.00 C 0 m / R X A n t. Q R K ZVNA C RFC µh C (h. ) LowPass Filters C C C C C C C C R C RX Ant. Bypass LPF W BPF Relays C0 LPF Relays K K K K K K K C.00 K0 K K K K J 0 0 RXRY RY COM 0/0m 0/m /m C0.00 KA KA KA C 00 K0A KA 0 V RFET RF C C00 0 C0 C0 C C L C 0 L C C0 0 0 L C C 0 L RF Output etector R C 0 C C L C0 0 By W. Burdick Rev. E. wartz B C C 00 C C 0 C C 0 0 C 0.K R 00K V 0RY 0m L 0/0m R 0K L L L N C.00 L L0 C0 0 C0 K RF Board ate 0//0 J Ant. C.0 KB K0B KB R.K % R Ω % KB ht. of P Aux. RF KB

6 RFC 00µH N00 N00 C RFC 00µH C R TX VFO T C R.K R Q0 N000 T BPF C (h. ) C 0. R 0 C 00 C C R 00 Xmit Mixer Attenuator 0dB Buffer C.0 U LT V R 0 K R R C.0 V C 00pF C0 0 U0 NE0 R 00 R R.K R.K C R 0 K R R 0 R 0 V T W 0 XFIL In Q N0 R RF Preamp db C.K C R C RP, RP: 00K B A d a p t e r C RX VFO R0 0K Z TUF V BIAXFIL RP RP RP RP RP J X X X X0 0 J V * C.00 R C Rcv. Mixer 0 dbm RP X C.0 J0 C R0 0.MHz VariableBandwidth Crystal Filter R T /OTPTT MIC AF V RFET : V B Control A V XFIL W C XFIL Out * Remove C when B Adapter is installed. R.K V C0 C.0 RFC 00µH Q N0 PostMixer Amp. T R R R.K R.K C R IF Amp AC R.Ω C R V AC C R 0 C R 0 C 0. C C.K R C 0 R C 00 R 0 U MC0 N00 L.uH BFO Buffer/Attenuator N o i s e B l a n k e r I.F. W NB Bypass C MV0 nd Xtal Filter C TP Q N000 Q PNA X V HI IP V XFIL Q J0 C 0 R0 00K X R A C 0. X.MHz BFO J C0.0 R 0 By W. Burdick E.wartz Product et. µh V RP 00K R00 0 V R 00 db, Z= 0Ω C X L V C 0. U NE0 C.0 C 0 R0 0 NOTE: If Noise Blanker is installed, R and R0 must be removed, and R replaced with a jumper. R0.K RP 00K V RP 00K K RF Board J Aux. AF Rev. ate ht. C 0//0 of P P RP 00K C

7 RFC 0µH V C C µf R C 0. C Z PRERIVER (h. ) R.K R 0 T C C R0 C 0 R.Ω R Ω RFC 0µH T :, FT Q N0 C C 0.0 R 0 C µf C0 Q0 N000 R 0 R C C 0. RFC 0.µH T R0.Ω / W T :, FT Q C river T C 0. C 0 R.Ω C 0 PA Bias R R R.Ω RFC 0µH RFC 0µH Q C C C A T C0 B 0. Q C Z Power Amplifier (PA) T ::: LPF (h. ) R 0 /W NOTE: W T ::: FOR BETTER EFFICIENCY AT W (EE "MOIFICATION" ECTION) Preriver R 0 V BIAXFIL Q PNA R R.K 0 Q PNA C 00µF C.0 R0 00 /CLA AB R 0 R.K By W. Burdick E.wartz K RF Board Rev. ate ht. C 0//0 of

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