Hi everyone.
New member here, long time lurker.
I've don't claim to know it all and certainly am not a technicion either but have been playing around with and using cb,ham,shortwave stuff since the 70's, I'm a HAM too.
I have a question regarding the new Galaxy DX94HP I recently purchased. It is advertised as a "100 watt max" radio. Out of the box it has a 35 watt deadkey with a swing to 100 watts. Wouldn't that be less than 100% modulation. I determined this with my Yaesu YS-60 PEP reading wattmeter that I have had along time and have verified its accuracy. This meter uses 12vdc for its op-amp circuit. The DX94 Service Manual specifies setting the high deadkey to 35 watts.
Once you turn up the AMC pot it swings easily to about 130 watts. Even if you turn the deadkey down to 25 watts.
Now if I remember correctly, isn't 100 % modulation four times the carrier? So if I'm deadkeying 25 watts and swinging to 130, whats my modulation percentage? If I turn the deadkey down to 5W it will swing to about 100W.
This is my first "export radio" and am a little confused. All of the HF rigs and cheaper CB's that I have had experience with on AM seem to not swing so wildly.
Is this just a hidden secret of export radios, they are cut back when they leave the factory and with just a few simple tweaks they let loose?
And what the deal with the obsession of having a low deadkey/high swing?
Hope I did not ask too much at once but look forward to the replies. LOL
73's
New member here, long time lurker.
I've don't claim to know it all and certainly am not a technicion either but have been playing around with and using cb,ham,shortwave stuff since the 70's, I'm a HAM too.
I have a question regarding the new Galaxy DX94HP I recently purchased. It is advertised as a "100 watt max" radio. Out of the box it has a 35 watt deadkey with a swing to 100 watts. Wouldn't that be less than 100% modulation. I determined this with my Yaesu YS-60 PEP reading wattmeter that I have had along time and have verified its accuracy. This meter uses 12vdc for its op-amp circuit. The DX94 Service Manual specifies setting the high deadkey to 35 watts.
Once you turn up the AMC pot it swings easily to about 130 watts. Even if you turn the deadkey down to 25 watts.
Now if I remember correctly, isn't 100 % modulation four times the carrier? So if I'm deadkeying 25 watts and swinging to 130, whats my modulation percentage? If I turn the deadkey down to 5W it will swing to about 100W.
This is my first "export radio" and am a little confused. All of the HF rigs and cheaper CB's that I have had experience with on AM seem to not swing so wildly.
Is this just a hidden secret of export radios, they are cut back when they leave the factory and with just a few simple tweaks they let loose?
And what the deal with the obsession of having a low deadkey/high swing?
Hope I did not ask too much at once but look forward to the replies. LOL
73's