630M Station

630M Amp for sale


630M Remote tuner

Misc stuff



The ScopeMatch antenna tuning aid is used to monitor the voltage and current at the feed point of the antenna. When the voltage and current sine waves are equal in amplitude and are in phase the antenna is properly tuned and maxium power will be radiated.

You can also use the scopematch to calculate the TPO (transmitter power out) One volt peak to peak from the scopematch equals 50 volts p-p. Formula is P=(vpp) squared /400 this assumes you have a 50 ohm load.

Example : If your O-Scope reads 3.0 volts peak to peak, multiply 3X50 = 150 and 150 squared is 22500/400 = 56.25 watts.

I dedicate a 10 mhz 2 channel Pico 2204A USB computer O-Scope to the scopematch and it is displayed on a 7 in monitor. This allows me to monitor the antenna match at all times.