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Has anyone whose owned an EICO 715 Transmatch confirm if the RF and Modulation functions work with the internal dummy load disengaged? All functions work with the dummy load engaged except these two functions when the dummy load is disengaged. The meter has been completely gone through and I...

Is it more ideal to have a higher capacitance on the transmitter side than on the antenna side 'in principal' when tuning an antenna? Secondly, is it better to have a higher or lower inductance? I understand the obvious answer: "whatever achieves the best SWR with the best forward"; however...

I noticed something interesting when checking two LPFs, a Bencher YA-1 and an ICE 421. I connected them both directly to the load side of my LP-100a into a dummy load and noted the ohmic, reactance and SWR readings. I tweaked them both to the same reading. They both measured identically the...

I have a Turner SSK I acquired dead. I have it pretty much done but the battery leads were disconnected and I can't seem to find a link to a site with the schematic. Would someone point me to a link (or tell me where they go) so I can solder the battery leads back into the mic. Many thanks..

I just read a 'Reducing Radio Interference' article where it recommended placing a low pass filter after a watt meter - the last link before the antenna(s). I have always thought that the LPF should be placed before a meter and/or a scope so that any potential spurious signals would be...

In testing an a/c powered transistor amplifier, I discovered a 9 volt drop when the amp is keyed. Here are the particulars: The electrical outlet measures a minimum of 120 volts on a 20amp circuit. The length of power run from the mains to the subpanel is 35'. The length of wire to the...

Does anyone have a PDF copy of a Heathkit HO-10 manual they would be willing to share? Many thanks...

I purchased a LP-100A computing SWR/Watt meter that displays reactance and impedance in real time. I have an Imax 2000 and a Sirio 3 element. On the beam, the R & Z are 48 and the SWR is 1.1. On my ground plane, the R & Z are 54 and the SWR is 1.3. These measurements have been rock steady...

May I have my user name changed to my new call sign, please? W6HSA Many thanks...