That warbling can also be caused by a HFO crystal that is trying to phase lock to the master oscillator. The PLL will sweep the oscillator loop voltage trying to achieve a locked condition. I've had
As far as receive, the last low pass filter covers from 22 to 30 MHz, so if ten meters works that rules out a relay problem. You can verify relay select voltage for both 10 and 12 meters on the last
Phil Do NOT attempt to realign those passband filters! Normal aging will not give you a 20 dB signal loss. Alignment can mask other problems and can compound finding a resolution for your problem. Re
There is no battery in the RTC chip. It maintains time via the 3 volt lithium battery that is used for the Omni VI memories. The only Ten Ten with an internal battery for the RTC was in the Paragon s
This question would be easier to answer if we knew what kind of TCXO you have. Ten Tec used a 5-volt TCXO that was designed to drive TTL digital levels. Most modern TCXO devices are now designed for
If you are brave, I'd pop the cover on that oven and see if the thermistor may have come loose and is no longer in firm contact with the metal crystal can. There is NOT a lot that can wrong inside of
This works with two Omni VI radios slaved together. Remove the TX OUT and TX EN jumper. That will inhibit the transmitter. Unfortunately the Paragon does not have DSP audio muting, nor a MUTE input.
If it is a large contract the service dept. personal may be pitching in helping with final assembly or other related work for that project. They are not a heavily staffed company. I'm glad to see tha
Hi, I am looking for a used *Crystal oscillator LO Mixer Board* for an Omni VI or VI Plus. This is the board that is hidden in the compartment with the VFO board. Mine has become heat sensitive and w
Gary All of my Omni's are using TXCO upgrades. The problem is not related to the 20 MHz reference. These are the ten individual locked hetrodyne osc. crystals--phase lock can be set by adjusting for
That comes with owning three which are into their sunset years... one of the three always has a new problem. Sigh. If must be nice to own a radio that works for a year or two before crashing. I found
Yes, it does seem odd. I installed a metal version of the J310, a U-310. It is holding so far, but I am not convinced that all of problems have been fully uncovered. The heat problem only affected th
There is an ALC and IC current limiting pot on the rear of the 9 MHz board. Both control maximum power. In your case, I suspect someone has cranked down the ALC pot to allow the rig to generate more
Hello to the group, I am looking for a few Inrad filters to complete my Omni VI Plus... only two remaining stock TT filters that need to be upgraded are the 1.8 and 2.4 kHz stock 9 MHz filters. If an
Does anyone have the correct procedure to set the crystal oscillators on the Omni VI series oscillator board? I know they are phase locked, but I am not sure exactly what VCO voltages to expect for l
Thanks for the responses... the question should have been worded more clearly. I needed to know how to adjust the ten phase locked crystals on the hetrodyne oscillator board. Dave, K1FK kindly provid
And while you are checking the BFO frequencies, you may want to check your carrier suppression as well, esp. on LSB. All three Omni rigs in the shack only had -20dBc suppression on LSB until the two
I'm looking for info on the manufacturer part number for the in-line white cable connectors used for the interconnecting cables on most Ten Tec rigs. Anyone have a link to DigiKey or Mouser for these