Daiwa SWR & Power Meter LED Lighting
The OEM incandescent lamp in a Daiwa SWR & Power meter which failed is being replaced with modern LEDs.
Five Philips heads screws, 2 on each side and one at … Read more...
Modifications
Simple FTDI PTT & CW Keying Interface
It doesn’t get any simpler than this!
This interface uses the RTS and DTR signal lines from a cheap FTDI USB Serial Adapter, and provides isolated keying for both PTT … Read more...
OCF 40M Dipole Repair
Adam fixes his faulty 40M Off Center Fed dipole, after being exposed to the elements for 16 years.
The enclosure was cracked, no doubt caused by the SO-239 being recessed … Read more...
Yaesu G-800DXA Volts Out Trimpot Replacement
A Yaesu G-800DXA rotator is being used for azimuth satellite tracking being driven from SatPC32 via a K3NG rotator controller interface.
The factory fitted trimpot is only a standard single-turn … Read more...
IC-410PRO Mic Connector AF output
An Icom IC-410PRO UHF transceiver is being interfaced to a Clear-Com intercom system via a TW-47.
I/O required between the IC-410PRO via it’s 8-pin RJ45 connector and the TW-47 are:… Read more...
Fixing a Diamond X-500 2/70 antenna
My 20 year old Diamond X-500 2/70 antenna stopped working earlier this year.
Not wanting to muck around, I simply ordered a new X-700 from Strictly Ham the following day.… Read more...
Weller WTCPT soldering iron switch mod
This simple modification replaces the standard rocker switch with an illuminated type rocker switch that is a drop-in replacement.
One annoying thing about the Weller WTCPT soldering iron is, there … Read more...
5/16″ SMA Spanner Mods
Doug, VK4OE, shows us some handy modifications to a 5/16″ combination spanner to make it more user friendly when dealing with SMA connectors in tight spaces.
FT-7800R Programming Lead (CI-V adapter lead)
This article also applies to: Yaesu FT-7800, FT-7900, FT-8100, FT-8800, and FT-8900
Having just recently acquired a pair of Yaesu FT-7800R VHF/UHF Twinband transceivers, a programming cable was now needed.… Read more...
HP-5315 Ext 10 MHz Ref Mod
I was recently considering the purchase of one these 2.7 GHz frequency counters, available from Jaycar and other suppliers.
Although 2.7 GHz capability is very appealing, a primary requirement was … Read more...
JPS ANC-4 Fix
These things sure don’t like high SWR, as smoke came out of mine once!
I finally realised I was transmitting on 28MHz into my 50MHz yagi… Ooops!!!
Anyway… R23 crapped … Read more...
FT-50R Battery Drain mod
The FT-50R will drain it’s battery rather quickly, even if the transceiver is turned “off”.
This mod will reduce the “off” current drain of the transceiver.
Note: Actual layout of … Read more...
FT-817 +12V ACCessory Connector mod
This describes how to modify a Yaesu FT-817, so that the +12V appearing on the accessory connector switches on and off with the radio.
Normally, the +12V appears on the … Read more...
Kuhne G3 Ext Lock LED mod
Kuhne provide a PLL Lock status LED on the PLL board of their G3 transverter modules.
This LED is inside the module, which is great when the lids are off … Read more...
Icom CR-293 High Stab Option
A look at the Icom CR-293 High Stability Oscillator option in an IC-910.
Easy to tweak, and the stability is very good.
You may not need to muck around with … Read more...
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