Presentations by AD5X
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The 43-foot Vertical - Advantages, disadvantages, how to build and how to match |
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HF Mobile/Portable Antenna Ideas - Antenna Efficiency, Mobile Installation & Antenna Construction |
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QRP Presentation by AD5X |
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QRP Presentation Rev. A - Updated by Jim Stafford W4QO |
Product Reviews by AD5X
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Rigol DSA705 Spectrum Analyzer: A $700 500 MHz Spectrum Analyzer! |
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Siglent SSA3021X Spectrum Analyzer: 2.4GHz spectrum analyzer and tracking generator review |
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Hardrock-50 160-6M 50-watt Amplifier: Neat addition for QRP radios. Review |
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Hardrock-50 Internal Autotuner: Great ATU for the HR-50 amplifier |
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MFJ-4403 Transceiver Voltage Conditioner: Review. Cleans up nasty DC sources and provides additional protection. |
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Siborg Systems ST5 Smart Tweezers: Might be what you need if you do a lot of SMD work. Review |
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Elecraft KXPA100/KXAT100: Review |
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MFJ-223 Compact Graphical Antenna Analyzer: Review. Covers ham bands up to 60MHz. |
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Alexloop WalkHam Portable Loop: Review |
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Rigol DS1052E and Tektronix TBS1042 Oscilloscope Reviews: These low-cost oscilloscopes are worth looking at. |
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Array Solutions VNAuhf: Review |
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Elecraft KAT500 Auto-tuner: Review |
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Elecraft KPA500 Amplifier: Review of the new Elecraft 500-watt amplifier kit. |
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Remote Tuners and the 43-foot Vertical: Review of the CG-3000, SG-230 and MFJ-927 remote tuners used with a 43-foot vertical |
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MFJ-998 Legal Limit Auto-tuner: Review |
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Array Solutions VNA2180 Product Review: Precision VNA for commercial and home lab use. |
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Array Solutions AS-43A Digital Meter for Bird 43: Convert your Bird 43 to a digital read-out wattmeter with excellent accuracy. |
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Mini-Circuits PWR-6GHS+ Power Sensor: 1MHz-6GHz power sensor and applications for your workbench (plus PWR-6+ and PWR-8GHS+ versions) |
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MFJ-706 EmComm System: Review and modifications. Now includes modification to support the IC-7000 (by W8CRH) |
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Ameritron ALS-1300 1200-watt Solid-State Amplifier: Review |
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Ameritron RCS-12C (includes RCS-10/12): Remote antenna switch controller and remote relay switch box |
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Dishtronix DWM-2104A SWR/Wattmeter: New peak-reading SWR/wattmeter review. |
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Samlex SEC-1235M 30-amp Power Supply: Review of this compact switcher |
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The "NEW" Ameritron ALS-600: Review of the remote controllable ALS-600 |
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MFJ-925 Compact Auto-tuner: Great for portable operation. Review. |
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MFJ-4416 Super Battery Booster: Product Review |
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MFJ-1664 Manual Screwdriver: Review |
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MFJ-935B Loop Tuner: Review & modification. Includes discussion of MFJ-58B Antenna Kit |
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Gamma HPS-1a Compact Power Supply Review: Tiny switcher handles 100-watt transceiver. |
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MFJ-929 Auto-tuner: Review of the new MFJ 200-watt auto-tuner |
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MFJ-994B 600 watt Intellituner: Review of MFJ's high-power auto-tuner |
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ICOM IC-7000: Review |
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MFJ-4726/RC Desktop/Remote Transceiver/Antenna Switch: Review |
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AIM 4170 Antenna/RF Lab Analyzer from Array Solutions: Review |
Equipment Modifications by AD5X
| PreciseRF TTG1 External Accessory: External attenuator and PTT unit for the TTG1 2-tone generator. |
| KX3 Internal Speaker "Buzz" Fix: If you have the speaker buzz, here's something that works well. |
| KX3 Travel Case: Inexpensive but sturdy case for portable transport (not really an equipment modification!). |
| Elecraft K3, KAT500 and KPA500 cable info: Interconnect data, construction info, and cable sources. |
| Gamma HPS-1a PowerPole modification: Replace the Molex connector with PowerPoles. |
| AIM4170 Upgrade: Change out the BNC connector to a SO-239 or N-connector in the original AIM4170 |
| MFJ-998 Modified to disable Elecraft KPA500: Fast, effective disabling of the KPA500 for TUNE and High SWR conditions |
| ALS-600 LED Meter Lamp Conversion: Change the bulb assemblies to LEDs in the ALS-600 amp and power supply |
| ALS-600 Flexible Amplifier QSK Keying Interface - Add Low Current Ground or +12V Keying, and Strappable Turn-Off Delay |
| QSK for the ALS-500 and ALS-600: Easy QSK mod for the Ameritron ALS-600 and ALS-500 amplifiers. |
| Tune Your Autotuners - Make the bypassed SWR of your MFJ-925/929/998 autotuners flat through 10 meters |
| Ameritron ADL-2500 Dummy Load Modifications: Flatten the SWR and add a fan on/off switch |
| Ameritron ARI-500 mods: Significantly improve the remote control flexibility of the ARI-500/ALS-600 combination |
| MFJ-4225 Front-Panel PowerPole: Convert the Accessory Socket connector to an Anderson PowerPole |
| Package the Elecraft XG2 & 2T-gen: Protect & improve these popular units |
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IC-706MKIIG 15/17 Meter Instability fix - Easier than Icom Bulletin #928 |
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MFJ-902 Antenna Tuner with SWR bridge and IC-706/703/7000 keying |
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MFJ-802B Field Strength Meter - Add antenna clips for storage and transportation |
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MFJ-802X Improved Interconnect Cabling - Convert the 1/4" mono jacks to RJ11 jacks |
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MFJ-4125 Power Supply - Add rear Anderson PowerPole connectors |
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MFJ-259B Antenna Analyzer - Fast charge the internal batteries |
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SG-2020 Fixed Sidetone Level - Simple mod makes CW operation easier |
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MFJ-932 QRP Loop Tuner - Add resistive SWR bridge and vernier tuning |
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MFJ-9420 Enhancements - Add Headphone jack, RIT and CW filter |
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DSW-II-XX - Incorporate an on/off switch with the GAIN control. |
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Ameritron ARB-704 Modification - Auto-mutes amp when used with MFJ-994B tuner |
| Butternut Vertical - Add 60 meters, three different ways! |
| Flexible Butternut Vertical - Remote switch for 80-, 75-, & 60-meters |
| Butternut 30-meter Capacitor - Protect this capacitor from stress |
| MFJ-267 SWR/Wattmeter/Dummy Load - Add a cooling fan and increase the dummy load response to 2-meters. |
| Yaesu FT-7 Mods - Extended 10-meter, switchable audio & XTAL CW filters, more. |
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