VE4FEB Amateur Radio Station - Operator: Fernan Bolando - Grid: EN19lv

Propagation Data

WSPR Data – Track frequency trends and propagation conditions.

Station Photos

Historical Snapshots of the Station Area

Station Equipment and Tools

1. Yaesu FT221 VHF transceiver
   • Installed modifications: CTCSS tone generator
2. Kenwood R-1000 Communications Receiver
3. TX1 80 to 10m Band Transmitter (Crystal controlled, 20W output)
4. TX0 3-band QRP Transmitter (Analog VFO)
   • 03 Jun 2022: Ongoing replacement of filters to reduce RF leakage between LO->Preamps. Final amplifiers will be redesigned.
5. Rigol DS1052E Digital Oscilloscope Product Page Manual
6. Quansheng UV-R50
7. TX3 DDS/SI5351 Transverter-Transmitter
8. Hammarlund HQ-145A updates, restoration done Brochure Manual Schematics HQ-145X Test Procedure HQ145X Test Specification
   • Recap seems to have been done by previous owner
   • Replaced HF Oscillator with 6100 tube
   • Fixed broken S-meter needle
   • Minor HF Oscillator alignment - Target: 1% to 2% dial accuracy
   • Minor RF alignment - Target: 0.6uV to 1uV sensitivity
   • 29 May 2022: After 3 years of service, HQ145A was waiting for one of its IF transformers to be fixed (suspected silver mica disease). As of 16 Dec 2023, this has now been resolved.
9. Commodore C64
   • Secondary propagation display
   • Secondary callsign lookup directory
   • Secondary skimmer check and submit
   • QSO log book entry using an ed-like editor
10. Atari 600XL
    • USB keyboard for a Plan9/Unix machine
    • CW keyer
11. Homebrew Spectrum Analyzer Blog Post
    • 16 Mar 2025: Maintenance update: 125Mhz Band Pass Filter insertion loss is 11dB
12. NanoVNA H3.4 Network Analyzer (10 kHz to 1.5 GHz) Wiki Page Support Forum Manual
13. QRPLabs QCX Mini (20m) - Battery-powered for outdoor use QCX Mini Page Schematic - Main Schematics - Display Assembly Manual Operators Manual
14. QRPLabs QDX - Quick digital mode QSO (FT8, JS8, etc.) QDX Page Schematics Assembly Manual Operators Manual
    • 13 Oct 2024: QDX is now offline due to transmission failure. No CLK0 output from UC11 (checked at IC3 and R41). Further investigation needed. QMX is now used for digital mode until repaired.
    • 26 Oct 2024: QDX under testing. Replaced IC3, Q9, and Q11 to restore transmission. Made a few FT8 contacts. Also replaced cracked C63 (damaged upon arrival but lacked replacement parts at the time).
15. QRPLabs QMX - Multi-band support for outdoor use QMX Page Schematics Assembly Manual Operators Manual
    • Awaiting new firmware to fix birdies and add features
16. Tektronix 2465 Oscilloscope TekWiki Page Operators Manual Service Manual
17. TinySA Ultra - Spectrum Analyzer Product Wiki
18. HF1 - Low Dipole Antenna for HF 40m, 20m, 15m
19. HF2 - Low Dipole Antenna for HF 60m, 30m

Technical Notes

• Through Window Feedline 08 Apr 2025

Projects

VOACAP for Plan9 - Plan9 port of the FORTRAN-based VOACAP program.

Clacker Works BBS - Experimental Multi-User BBS with Amateur Radio Tools.

© 2025 [email protected]. Created with ed.