G11+ GSDR quick start assembly manual January 23, 2012 Ver 1.2 Tasa, YU1LM and Nick, VK2DX Before the assembly: Install GSDR software for G11 from http://genesisradio.com.au/gsdr/new. Download both install files and update files in a newly created folder. If you have previously installed any other version of GSDR then you must start with a NEW G11 installation. Of course you can still use any previously installed version of GSDR for other Genesis hardware like G3020, G59 etc. Power supply Install DC jack J1P, ferrite bead FB3P and FB4P, electrolytic capacitor C28P [1000uF] switch (if supplied) or jump wire instead. Measure +13.5V on C27P NOTE:All voltages and current measurements are INDICATIVE ONLY. Values +/- 5% are acceptable. Values provided here are measured with G11 connected to 13.5V DC power supply.
Install R2M [1R] Measure voltages as shown below. Voltage across R2M: 165 mv Voltages on U6E: +5.02v C30R: +3.3v L1L: +3.32 v U6R: +5.2v Install R11U [1R] Measure voltage on U3U: +5V.
Install trimmer pots P1Z[5K] P1E[5K] P2E[1K] P3E[1K] P1R[1K] P2R[5K] NOTE: before installation, preset the trimmer pots to mid value.
2. uc circuit assembly Install molded chokes L1U [47uH], L2U [47uH] and leaded ferrite bead FB1U. Install USB connector J4U and J2U paddle audio jack (located next to JT1 RX2 antenna connector). Measure voltage on L1U: +5V. Voltage over R11U: 39mV LOAD FIRMWARE using the Flash programmer. Firmware is located in http://genesisradio.com.au/g11/g11flash_firm.zip Loading procedure is the same as the one described in http://www.genesisradio.com.au/g59/phase4a.html. After firmware update, check frequency of Si570 oscillator on J1L. It should read 56.320 MHz. Now install DIVIDER jumper J1L. Measure 14.080 MHz on the test point next to the cap which is located above the jumper J3L. Do not install jumper J3L!
3. Receiver assembly Install audio connectors J1U, J3U, J1C, J2C, J1M, J2M, J2R and two antenna BNC connectors J1T and J1S. Install led diodes LD1U [green] LD1S [red] LD2U [green] and LD3U [red], reed relays RL1E and RL2E and jumper JMP1E which is located next to the Line Out audio connector connector J1C. Install audio jack J2C and J1C. NOTE: Reed relays supplied are either 5V or 12V version. If relay supplied is marked HE721C0500 then it is a 5V relay and you need to install jumper JMP3E
If the reed relay supplied is HE721C1200 then it is a 12V version; install jumper JMP2E Install mechanical relays RL1R and RL2R, audio jack J2R. Attach two-wire jump cables to J7U - J1R. Temporarily install wire from RX2 BNC connector to mixer input as shown below (top pin of J1B connected to left pin of J2B).
Image rejection pre-adjustment (no voltage): set P1R to 330 Ohm, measured between TP1 and TP2. Set P23 to 50 Kohm, measured between TP12 and TP13. To test the receiver prior to installation of filters, connect the antenna to RX2 input and select RX2 in GSDR.
4. Channel selection Under General > Hardware Config > G11 select two channels for band filters. 5. Installation of Band pass [BP] filters
Note: for the latest filters data, including newly designed filters go to http://genesisradio.com.au/g11/, follow the link to BP and LP filters tables. Since majority of the G11 builders will assemble 5 band coverage HF transceiver, this assembly manual will cover installation of the following configuration: Band coverage: 30m-20m-15m-12m-10m Channel 1: 30 and 20m band, Channel 2: 15m, 12m and 10m band. If your choice of band coverage is different, you will install different set of filters which may contain more or less components of different values / sizes. In other words, your particular filters may look different. Overview: filters are to be installed in the following order Step 1: Channel 1, Band-pass 30-20 [BP] [test receiver!] Step 2: Channel 2, Band-pass 15-12-10 [BP] [test receiver!] Step 3: Channel 1, Low-pass 30-20 [LP] Step 4: Channel 2, Low-pass 15-12-10 [LP] Prior to installing the BP filters, remove temporary wire and install jumpers J1B and J2B Channel 1 BP filter installation Wind and install inductors L6B, L7B and L8B. L6, L7 and L8 are of the same value. As shown in BP filter table, for 30m-20m band (or 10-14MHz) inductivity is 1.2 uh which equals 19 turns of 0.5 mm wire wound on 37-6 core (small 9.5mm yellow toroid core).
Install capacitors C18B [220pF], C19B [4,7pF], C20B [330pF], C21B [680pF], C22B [330pF], C23B [4,7pF] and C24B [220pF]. All capacitors are yellow NP0 caps, through hole. Photo of the G11 board showing installed CH1 BP filter. Channel 2 BP filter installation Wind and install inductors L9B, L10B and L11B. L9, L10 and L11 are of the same value. As shown in the BP filter table, for 15m-12m-10m band (or 21-24-28MHz) inductivity is 0.47 uh which equals 12 turns of a 0.5 mm wire wound on a 37-6 core (small 9.5mm yellow toroid core).
Install capacitors C25B [100pF], C26B [27pF*], C27B [220pF], C28B [220pF], C29B [220pF], C30B [27pF*] and C31B [100pF]. All capacitors are yellow NP0 caps, through hole. *Note: with some kits, 27pF capacitor consists of two capacitors installed in parallel, 22pF + 4.7pF. Install 22pF above the board and 4.7pF underneath the board. Photo of the G11 board showing installed CH2 BP filter:
Channel 1 LP filter installation Wind and install inductors L1B and L2B. L1B and L2B are of the different value. As shown in the LP filter table, for 30m-20m band inductivity of the L1B is 0.495 uh which equals 11 turns of a 0.8 mm wire wound on a 13 mm yellow toroid core. L2B is 0.62 uh which equals 12 turns of a 0.8 mm wire wound on a 13 mm yellow toroid core.
Install capacitors C2B [180pF], C3B [82pF], C4B [180pF], C5B [180pF], C6B [22pF], C7B [180pF]. All capcs are yellow NP0 caps, through hole. NOTE: For this filter C1B and C8B are not required. Photo of the G11 board showing installed CH1 LP filter.
Channel 2 LP filter installation Wind and install inductors L3B and L4B. L3B and L4B are of the different value. As shown in the LP filter table, for 15m-12m-10m band inductivity of the L3B is 0.255 uh which equals 6 turns of a 0.8 mm wire wound on a 13 mm yellow toroid core. L4B is 0.28 uh which equals 7 turns of a 0.8 mm wire wound on a 13 mm yellow toroid core. Install capacitors C10B [56pF], C11B [33pF], C12B [150pF], C15B [22pF] and C16B [68pF]. All capacitors are yellow NP0 caps, through hole. NOTE: for this filter C9B, C13B, C14B and C17B are not required.
Photo of the G11 board after installation of both channel filters. Attach 4 wire ribbon cable between 4 pin connectors J6U and J2S. Test the filter switching of relays RL1B and RL2B by changing the band in GSDR. SWR bridge T1S Wind and install SWR bridge transformer T1S Binocular core, BN43-202 c-c1: Enamel wire 0.5mm 10 turns d-d1: Enamel wire 0.5mm 10 turns a-a1: Enamel wire, 0.8mm 1 turn b-b1: Enamel wire, 0.8mm 1 turn NOTE: Strip and tin leads properly before soldering onto the board. Photos below show bridge after winding and installation on PCB.
To check proper functionality of the SWR bridge - Install temporary wire as per photo - Connect receiving antenna to ANT connector to the right, J1S - NOTE: Since the receiving signal is passed via RXant, RX2 must still be selected in the GSDR software If the SWR bridge transformer T1S is installed properly, there will be no noticeable difference in signal strength when the antenna is connected to J1S. Total measurable BP / LP filter loss with calibrated signal generator is 1-2dB.
G11 Connation and cabling 1 USB port Connect to PC 2 PTT out Linear amp keying 3 PTT/Hand key Hand key or PTT 4 Paddle To paddle / keyer, also boot / firmware write 5 RX2 Second receiver input or transverter IN/OUT 6 RX1 Main antenna connector 7 DC input To 13.5V power supply 8 Line in Connect to sound card LINE IN *must be STEREO
9 MIC Out Microphone 10 MIC In Microphone 11 FM Line Out Connect to sound card LINE OUT 12 Phones To head phones *Receiver-only connections highlighted This completes the assembly of G11 receiver. NOTE: Before proceeding to Part 2 of the assembly (transmitter) please take as much time as possible to get familiar with the GSDR software. Performance of any software defined radio is directly related to the quality of sound card installed. Find out how various sound card settings (latency, sampling rate, drivers etc.) affect reception and performance. Adjust receiver image rejection [IR], set wide band image rejection [WBIR], calibrate S-meter level and frequency, install VAC and virtual ports and use your receiver to decode digital signals like WSPR, JT65, RTTY and others. Learn how to integrate GSDR/G11 with other amateur applications (contesting software, logbook etc). Keep in mind that G11 is high performance SDR transceiver! It will allow you to experience amateur radio communication form new perspective and it will broaden your horizons like no analog box radio. Join GenesisRadio Yahoo group to share your experience or ask questions if you need assistance,. Check the group s files for more help: http://groups.yahoo.com/group/genesisradio/ Apendix 40m - 30m Filter [7-10 MHz] : For component values for this filter see following documents BP : http://www.genesisradio.com.au/g11/bpfilters.pdf filter No. 6 LP: http://www.genesisradio.com.au/g11/lpfilters.pdf filter No. 6 Practical realization: BP L6B=L7B=L 8B = 1.2uH 20 turns 0.5mm wire on a small yellow toroid LP L1B = 0.83 uh = 14 turns 0.8mm wire on a large diameter yellow toroid L2B = 0.60 uh = 12 turns 0.8mm wire on a large diameter yellow toroid