Hi Howie, When I first got my Titan 425 (used) I found the fan (actually it is a blower) to be objectionalbly loud. I opened up the amplifier and removed the fan, and then did my best to clean and lu
I agree that putting the filter at the machine that generates the noise, rather that at your end. Stop it before it can radiate. I wonder if something as simple as some bypass capacitors at his power
The key to understanding what kind of noise a Noise Blanker works with is in the word "Blanker". Noise Blankers are triggered by noise pulses and blank all signal for some duration after the triggeri
So even though there is some risk that the ps filter caps can dry out, if you take it slow, it may work fine after not being used for 10 years! Some people will use a variable autotransformer (Variac
Zero beating your transmit signal to that of the station you are calling is not necessarily the best thing to do. I agree that we should all learn how to do it and know where we are putting our signa
Hercules II power amp. I'm running it on a marine deep cycle battery with a 15amp charger. The problem is that the amp doesn't appear to produce rated power on all bands. The Hercules II is supposed
Hi Chuck, But doesn't the "ST" (sidetone) adjustment on the OMNI VI also adjust the BFO frequency? No. There are only five adjustments to the BFO and they are trimmer capacitors for "alignment" and n
Hi Rick, In many (perhaps most) applications it is desirable to have the non selected coax switch positions grounded. There are also some applications in which you do not want the non selected positi
I'm interested, probably for the 9 MHz IF. DE N6KB The question of this post is to see if other Tentec fans would like to join in a special order from INRAD for a 1000 Hz bandwidth filter in either o
There are a lot of performance reasons to choose the Omni-VI over the TS-2000 which no doubt others have already pointed out. In my opinion cosmetically the Omni-VI has it all over the TS-2000. I'm n
I guess that you can only install either the CW or SSB roofer, but not both. The CW bandwidth seems about right, but I actually wish they would offer a 1000 Hz option, that would be perfect for S&P,
The Inrad web site does not specifically say whether the roofing filter kit puts the new roofing filter in instead of the stock 2 pole 15 kHz, or in addition to it. However one can surmise, based on
Hi Jason, Now that you have had the Inrad roofing filter modification in you Omni VI for a while, I wonder what are your impressions? I don't know what kind of operating you do, so you may not have n
Omitting the resistors and substituting a quarter wave stub is not the same thing. In order for a Vee beam to be unidirectional, you have to terminate the ends in the characteristic impedance of the
Hi Bob, I have an Omni VI, not a Plus version. I'm pretty sure there is very little difference in their respective balanced modulators. The manual for it does not give a procedure for adjusting R3 an
Hi Jason, I have tried to send mail to you directly, off the reflector, and it bounces. I have questions about your experience with the Inrad roofing filter mod. Can you send me a message with an add
Hi all, I used my Hercules II and 9420 power supply in the ARRL DX contest this weekend. The amplifier worked great, never showing any signs of strain or overheating. The 9420 power supply got quite
Hi Phil, Thanks for the suggestion. I see how the currents to the four PA modules is monitored by the voltage drop across the 0.015 ohm resistors on the DC Distribution Board, and then combined toget
Thanks to all for the information. I have decided to open up the Hercules, check the individual power supply voltages (and hopefully not have to get into the 9420 to adjust them), measure the individ