@blitztex1979 Preamps work awesome! I have a Texas Star DX 350 HDV Linear and the peramp really brings in the week signals and increases them. Working an Australian station today on the DX his signal was around 2 db most of the time and the preamp brought his signal to 7 db
At 6:06, this is not a keying transistor, but receive preamp ckt on top of it's relay. The keying transistor is to the left of the transmit relay. And at 6:11, the coils are not for tuning, but are part of a clever circuit. It's a cheap way to pass DC for the class-B bias, while allowing the RF to share the same path using two capacitors as bypass. This allows Xforce to use a 2-pole relay in an amp that features Class-B operation instead of requiring a 3-pole relay. (for RF in/out and bias.)
well i just ordered one, just ordered it striait from xforce, $245 shipped well worth it the comp box x -force 200hd is similar its 210.00 plus 20 shiping so $230, and it has no pre-amp or ssb delay and is class c and not b like the tnt, tnt is a better amp, period
ive got the tnt 600HD brand new and its got a swr 2:1 INPUT from the radio. The output SWR from the amp to the antenna is 1:1.
Need i worry about my radio or just enjoy??? i emailed xforce who told me swr is a resonance of the antenna.........
Please help and please do a video on the 600HD..
God Bless Rod
rredbeak 1 month ago
@blitztex1979 Preamps work awesome! I have a Texas Star DX 350 HDV Linear and the peramp really brings in the week signals and increases them. Working an Australian station today on the DX his signal was around 2 db most of the time and the preamp brought his signal to 7 db
BananaJSSI 2 months ago
At 6:06, this is not a keying transistor, but receive preamp ckt on top of it's relay. The keying transistor is to the left of the transmit relay. And at 6:11, the coils are not for tuning, but are part of a clever circuit. It's a cheap way to pass DC for the class-B bias, while allowing the RF to share the same path using two capacitors as bypass. This allows Xforce to use a 2-pole relay in an amp that features Class-B operation instead of requiring a 3-pole relay. (for RF in/out and bias.)
cminib 3 months ago
had mine for like 3 weeks and i love it it will hit 400 pep with my stryker 440
hamtalker2007 1 year ago
Cool, I just ordered mine today from xforce website. I cannot wait
blitztex1979 1 year ago
@blitztex1979 pre amp seems to work really clean, or at least mine is is love this amp
hamtalker2007 1 year ago
How is the preamp on this 350? Do preamps really pull in weak signals
blitztex1979 1 year ago
@neubie182 it sucks air in from the bottem back and it comes out the top there is a heat sink under the amp, it a pretty cool cooling system
hamtalker2007 1 year ago
well i just ordered one, just ordered it striait from xforce, $245 shipped well worth it the comp box x -force 200hd is similar its 210.00 plus 20 shiping so $230, and it has no pre-amp or ssb delay and is class c and not b like the tnt, tnt is a better amp, period
hamtalker2007 1 year ago
@TheDude8689
hey the tnt 100 will do 120 pep max and it depends on the drive from your radio, take care
hamtalker2007 1 year ago