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EGV-3BL_BPF/LPF
EGV-3BH_BPF/LPF
3-band BPF/LPF module for
EGV-9B main PCB
(Download EGV-9B main PCB manual from www.ea3gcy.com)
Last update July 01, 2024
ea3gcy@gmail.com
:
www.ea3gcy.com
Latest updates and news in
EGV-3B_BPFLPF
Thank you for building the
module
Have fun assembling it and enjoy QRP! 73 Javier Solans, ea3gcy
EGV-3B_BPFLPF
module for EGV-9B main PCB CW Transceiver kit
Page 1
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Table of Contents
Related Manuals for EA3GCY EGV-3BL BPF/LPF
Summary of Contents for EA3GCY EGV-3BL BPF/LPF
- Page 1 Last update July 01, 2024 ea3gcy@gmail.com www.ea3gcy.com Latest updates and news in EGV-3B_BPFLPF Thank you for building the module Have fun assembling it and enjoy QRP! 73 Javier Solans, ea3gcy EGV-3B_BPFLPF module for EGV-9B main PCB CW Transceiver kit Page 1...
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Page 2: Specifications
INTRODUCTION EGV-3B_BPFLPF The EGV-3B_BPFLPF is three-band filter plug-in module for the EGV-9Bv2 9-band CW transceiver PCB Main. There are two versions "L" and "H": The EGV-3BL is for 40-30-20m. The EGV-3BH for 17-15-12-10m. This module incorporates two 7-pole low-pass filters and one variable band-pass filter varicap tuned All the filters are switched by means of relays to avoid their interactions. -
Page 3: Recommended Assembly Sequence
RECOMMENDED ASSEMBLY SEQUENCE All SMD parts soldered at the factory. You don't have to solder anything SMD Based on your experience you can place the components in the order you are used to. However I can recommend the following assembly sequence: ... - Page 4 L1, L2 Shielded coils Version Band L1-L2 EGV-3BL 40-30-20 5u3H 3334 EGV-3BH 17-15-12-10 1u2H 3335 L3 to L8 LPFs TOROID WINDINGS he following table shows the type of toroid, the turns it has to wind and the length of wire it will need.
- Page 5 CAPACITORS LIST Marked LPF-1 (40m) Marked LPF-2 (20m) EGV-3BL C1-C2-C4 C9-C12 C10-C11 C5-C8 C6-C7 100n 270pf 680pf 180pf 390pf (40-30-30m) Marked LPF-1 (15m) Marked LPF-2 (10m) C1-C2-C4 C9-C12 C10-C11 C5-C8 C6-C7 EGV-3BH 100n 82pf 220pf 56pf 150pf (17-15-12-10m) hey are all pre-installed on the bottom PCB Notes: All capacitors are SMD 100V NP0 or CG0 type.
- Page 6 TOROIDS ASSEMBLY EXAMPLE: he following example is the low pass filter for 40m 40m LPF Toroids L6, L7 and L8. L6 and L8 are identical and are wound with 18 turns. L7 is wound with 20 turns. They use T37-2 (red toroids 9.5mm/0.375in outer diameter). Cut about 28cm (10.3”) of 0.4mm diameter enameled wire and wind the L6 and L8 toroids with eighteen (18) turns.
- Page 7 L6 (18 turns) L7 (20 turns) L8 (18 turns) PLUG IN MODULE - WIRING AND CONNECTIONS he EGV-3B2_BPFLPF PCB is a plug-in module that sits on top of the EGV-9Bv2's main board. The connection is simple, but requires special attention so that errors do not arise. 1.- The three-pin “V-TUNE”...
- Page 8 See the following pictures: The spacers to screw the board are 10mm and you have to add two nuts to gain about 4mm in height. To fasten to the main board, 10mm (M3x10) screws are used and to fasten the plug-in filter module, 4 or 5mm (M3x4) screws are used.
- Page 9 No further adjustments required. TX has no settings. IMPORTANT: For the other settings on the EGV-9B motherboard (TX-RX delay, side-tone level, etc.) and for the instructions for use of the transceiver and the K2 keyer, download all the manuals from www.ea3gcy.com. EGV-3B_BPFLPF...
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Page 10: Limited Warranty
I can also supply any part that you have lost, Javier Solans, EA3GCY, warrants this device to damaged or broken accidently. function according to the specifications, provided If you find any errors in this manual or would like... - Page 11 SCHEMATICS EGV-3B_BPFLPF module for EGV-9B main PCB CW Transceiver kit Page 11...
- Page 12 EGV-3B_BPFLPF module for EGV-9B main PCB CW Transceiver kit Page 12...
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