You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.
The Feb 2025 Radioddity Giveaway Results are In! Click Here to see who won!

Reply to thread

Message

Here is my new GM model, but the addition of a capacitor in the middle of the antenna does not benefit the model with increased gain like we see in The DB's Imax model with a 42Pf capacitor in the middle of the radiator. The gain for the GM antenna with the capacitor is just a tad better than my model without the capacitor.

The match looks really nice and the SWR bandwidth at 3.20 MHz is a bit short of what specs call for at 4.50 MHz, vs. the 5.00+ MHz I get with my Real World antenna using 100' feet of LMR400 for the feed line.

[QUOTE="Marconi, post: 572196, member: 903"] Here is my new GM model, but the addition of a capacitor in the middle of the antenna does not benefit the model with increased gain like we see in The DB's Imax model with a 42Pf capacitor in the middle of the radiator. The gain for the GM antenna with the capacitor is just a tad better than my model without the capacitor. The match looks really nice and the SWR bandwidth at 3.20 MHz is a bit short of what specs call for at 4.50 MHz, vs. the 5.00+ MHz I get with my Real World antenna using 100' feet of LMR400 for the feed line. [/QUOTE]

Top Bottom