4 Matthews Drive East Haddam CT 06423 !!!! 860 873-1451 voice 860 873-1947 fax Global Certification Laboratories, Ltd. BURGHARDT, INC. BU-1000/155 FCC ID: 4/3/00 FCC PARTS 15(B) & 90 BU-1000/155 OPERATIONAL DESCRIPTION, PARTS LIST & INSTALLATION David Smith of Burghardt Inc produced the following operational description and parts listing. This text is repeated in the technical description of the report. THEORY OF OPERATION The BU-1000/155 is a low power data transceiver. RECEIVER SECTION The receiver is a double conversion superheterodyne design. When in the receive mode, signal is allowed to pass to the Q1 RF AMP, where it is amplified and sent to U1 for the first mix. X2 is a 3rd overtone crystal which is tripled by Q2 to produce the first mix frequency. The first mixer is located in U1 and produces a 10.7MHZ first IF. X1 produces the 2nd mix frequency of 10.245MHZ. It is mixed in U1 to produce a 455KHZ 2nd IF frequency. Receiver audio is then detected in U1 to produce RXA out. TRANSMIT SECTION Modulation is applied to D3 varactor and is used to shift the frequency of X201 to produce FM modulation. X201 is a 3rd overtone crystal. Its frequency is tripled by Q241 to give the appropriate output frequency. It is then amplified by Q242 pre-driver and Q243 final. It is passed through D440/441 switching when in transmit mode and from there applied to the antenna. BU-1000/155 SPECIFICATIONS:
GENERAL:
FREQUENCY COVERAGE:1 CHANNEL(150 to 160 MHz) TX CURRENT DRAW: 250MA RX CURRENT DRAW: 120MA RECEIVER:
SENSITIVITY: 10DB SINAD AT .8UV AUDIO OUTPUT LEVEL: 2VPP AT 3KHZ DEVIATION 1ST IF FREQUENCY: 10.7 MHz 2ND IF FREQUENCY: 455 kHz TRANSMITTER POWER: 250MW Page 1 of 4 4 Matthews Drive East Haddam CT 06423 !!!! 860 873-1451 voice 860 873-1947 fax Global Certification Laboratories, Ltd. BURGHARDT, INC. BU-1000/155 FCC ID: 4/3/00 FCC PARTS 15(B) & 90 BU-1000/155 OPERATIONAL DESCRIPTION, PARTS LIST & INSTALLATION BU-1000/155 DATA TRANSCEIVER BOARD PARTS LIST
(155 MHz) RECEIVER SECTION C2,8,10,11,13,16,17,18,19,20,23,24 .1UF NEWARK 07WX6808 C6 33PF DIGIKEY PCC330CCT-ND C7 18PF DIGIKEY PCC180CCT-ND C14 120PF DIGIKEY PCC121CCT-ND C4 4.7PF DIGIKEY PCC4R7CCT-ND C15,1 47PF DIGIKEY PCC470CCT-ND C5 22PF DIGIKEY PCC220CCT-ND C12 1UF TANTILUM NEWARK 93F2694 C9 3.9PF DIGIKEY PCC3R9CCT-ND C3 100PF DIGIKEY PCC101CCT-ND C25 1000PF DIGIKEY PCC102BCT-ND C21 2200PF DIGIKEY PCC222BCT-ND R6,2 470 NEWARK 07WX0214 R10,12 39K NEWARK 08WX8266 R3,7,8 1K NEWARK 07WX0211 R4 5.6K NEWARK 08WX8274 R5 15K NEWARK 08WX7826 R1 100K NEWARK 96F6995R100.0K R9 10K NEWARK 08WX8237 R11,13 22K NEWARK 08WX8252 R14 330 OHM 1/2 WATT DIGIKEY 330H-ND FL1 MURATA SFE10.7MJA10-A FL2 MURATA CFU455B2 L1 43NH DIGIKEY DN4010-ND L2 1.5UH DIGIKEY TK1412-ND L3 .108UH DIGIKEY TK2713-ND L4 .64MH DIGIKEY TK1302-ND U1 MC13135DW NEWARK 07F2896 U2 78L05ACP NEWARK 07F7397 X1 10.245 MHz BOMAR X2 SELECTED BOMAR Q1 MRF901 NEWARK 08F1298 Q2 2N3904 NEWARK 09F5663 ZD1 6.8 V 1/2 WATT ZENER NEWARK 09F4090 Page 2 of 4 4 Matthews Drive East Haddam CT 06423 !!!! 860 873-1451 voice 860 873-1947 fax Global Certification Laboratories, Ltd. BURGHARDT, INC. BU-1000/155 FCC ID: 4/3/00 FCC PARTS 15(B) & 90 BU-1000/155 OPERATIONAL DESCRIPTION, PARTS LIST & INSTALLATION TRANSMITTER SECTION C265,252,259,260,261,263,272 .1UF NEWARK 07WX6808 C253,254,269 47PF DIGIKEY PCC470CCT-ND C255 18PF DIGIKEY PCC180CCT-ND C224 3.9PF DIGIKEY PCC3R9CCT-ND C262,250 220PF DIGIKEY PCC221BCT-ND C258 6.8PF DIGIKEY PCC6R8CCT-ND C251,221,222 8.2PF DIGIKEY PCC8R2CCT-ND C257 27PF DIGIKEY PCC270CT-ND C264 15PF DIGIKEY PCC150CCT-ND C267 2.2PF DIGIKEY PCC2R2CCT-ND C271,273 1000PF DIGIKEY PCC102BCT-ND C256 33PF DIGIKEY PCC330CCT-ND C268 .01UF DIGIKEY PCC103BCT-ND R210 470 OHM NEWARK 07WX0214 R212 15K NEWARK 08WX7826 R221,216,211,217 1K NEWARK 07WX0211 R214 5.6K NEWARK 08WX8274 R215,220 18K DIGIKEY P18KECT-ND R219,223 100K NEWARK 96F6995R100.0K R222,218 10 OHM DIGIKEY P10ECT-ND R224 4.7K DIGIKEY P4.7KECT-ND R225 330 OHM 1/2 WATT DIGIKEY 330H-ND R226 150 OHM DIGIKEY P150ECT-ND L290 1.5UH DIGIKEY TK1412-ND L291 .137UH DIGIKEY TK2714-ND L292,296,297,299 43 NH DIGIKEY DN4010-ND L294,300 1UH DIGIKEY PCD1131CT-ND L295 .241UH DIGIKEY TK2707-ND L293 .375UH DIGIKEY TK2729-ND L298 .211UH DIGIKEY TK2706-ND Q242,241 MRF901 NEWARK 08F1298 Q243 2N4427 NEWARK 10WX2083 X201 SELECTED ZD2 6.8V ZENER NEWARK 09F4090 D3 MV2105 VARACTOR NEWARK 08F2197 Page 3 of 4 4 Matthews Drive East Haddam CT 06423 ! 860 873-1451 voice 860 873-1947 fax Global Certification Laboratories, Ltd. BURGHARDT, INC. BU-1000/155 FCC ID: 4/3/00 FCC PARTS 15(B) & 90 BU-1000/155 OPERATIONAL DESCRIPTION, PARTS LIST & INSTALLATION COMMON SECTION R401,402,403,400 1K NEWARK 07WX0211 C460,461 .1UF NEWARK 07WX6808 L475 56UH DIGIKEY PCD1106CT-ND D440,441 MPN3404 NEWARK 07F9506 Q450 2N3906 DIGIKEY 2N3906DICT-ND LED1 GREEN LED DIGIKEY 67-1059-ND LED2 RED LED DIGIKEY 67-1065-ND CN1 5 PIN JACK DIGIKEY H2097-ND CN2 BNC JACK DIGIKEY ARF1178-ND 2 PIN JACK(OPTIONAL) DIGIKEY H2094-ND 5 PIN PLUG(ACCESSORY) DIGIKEY H2086-ND 2 PIN PLUG(OPTIONAL) DIGIKEY H2083-ND PINS(ACCESSORY) DIGIKEY H2138-ND BU-1000 INSTALLATION The BU-1000/155 has a 5 pin connector for hookup to the MRU (meter reading unit) modem and a BNC connector for connection to a half wave dipole. The pinout of the 5 pin connector is as follows. 1) PTT (push to talk) 2) 12V (regulated 12 volt input) 3) Mod in (modulation input) 4) RXA (receiver audio output) 5) GND (ground) The BU-1000/155 is to be installed and maintained by authorized personnel only. Page 4 of 4