Jump to content


  • Content count

  • Joined

  • Last visited

  • Days Won


About LarryF

  • Rank
    Hero Member
  • Birthday 12/11/1943

Contact Methods

  • AIM
  • Website URL

Profile Information

  • Location
    Rio Rancho, New Mexico
  • Interests
    Classical music, fast cars and Maine Coon cats
  • Interested in Sound for Picture
  • About
    I have been chief janitor at Lectrosonics for 40+ years.

Recent Profile Visitors

4,044 profile views
  1. Article in "Wired" magazine about 4 years too late. https://www.wired.com/story/wireless-mics-radio-frequencies-fcc-saga/ Best Regards, Larry Fisher
  2. LarryF

    So, antenna issues with 941

    Several points about the antenna: 1. It has 3 dB of forward gain compared to a regular dipole or whip, a small amount of rejection at the rear and is broadband due to the angled reflector and fat arms. 2. The silver metal flange at the rear is for permanent mounting and can be bent at the various notches to handle any mounting surface. 3. There is a Lectro stand mounting kit but right now I'm getting a 404 error. You can see it on the data sheet though: https://www.lectrosonics.com/US/All-Accessories/product/pca900-2.html#data-sheet 4. Please note that this antenna says "VERT" rather than "UP". (See we learn, we're just slow.) Best Regards, Larry Fisher
  3. LarryF

    Microdot to Lectro TA5 failure

    Hi Dalton, And the terrible thing is, if you forget to mark the lines in the heat of battle, you have to start all over again. Best Larry F
  4. LarryF

    Microdot to Lectro TA5 failure

    Dalton and Rado, Increased losses from connecting and disconnecting RF connectors is pretty much a myth. I would get a very tiny magic marker and mark a tiny line on the side of the SMA or BNC connector. After I counted 10,000 lines, I would put on a brand new connector. Best Regards, Larry Fisher
  5. LarryF

    Lectro SMV battery drain

    Hi Mirror, I use a toothpick to pick up a little paste from the container and use that to apply it to the screw thread. However, I will check with the factory and make sure we are still putting the same (correct) amount in the vial. It probably wouldn't break us to add a bit more. Best Regards, Larry Fisher
  6. LarryF

    New wireless TX deviation rules October '18

    Thanks for the timelime, Gordon. LEF
  7. LarryF

    Lectro SMV battery drain

    Good point Dean. Also, Wright's Silver Cream is the best and only recommended cleaner. LEF
  8. LarryF

    New wireless TX deviation rules October '18

    Correct. LEF
  9. LarryF

    Lectro SMV battery drain

    Hi Mirror, You are using too much. One vial will do 10 applications, so divide the contents accordingly. It only takes a speck to make a very thin layer. It is sufficient to clean the threads before application with a dry microfiber cloth, rubbing the male and female threads until no black residue shows up on a clean section of the microfiber towel. Then apply the 10% speck to the leading male thread. Each future battery insertion will spread the grease up and down the threads. Below is the grease that we use. There is a lot of thermal grease called silver paste on the market that contains no silver but is just silver colored. Some is called silver paste and is not electrically conductive at all. Some has carbon in it and is moderately conductive. Some is a combination of carbon and silver, if you are lucky. As usual, if it is cheap, it is probably crap that is colored silver. The 100% good stuff is below, Chemtronics CW7100: http://farnell.com//datasheets/1795243.pdf https://www.amazon.com/s/ref=nb_sb_noss_2?url=search-alias%3Daps&field-keywords=CW7100 Best Regards, Larry Fisher
  10. LarryF

    New wireless TX deviation rules October '18

    As Gordon posted above: "Basically, any transmitters manufactured or sold after October 18 must not only conform with the new regulations...." Transmitters have a legal cutoff, not receivers. Best Regards, Larry Fisher
  11. LarryF

    New wireless TX deviation rules October '18

    Again, if you need re-blocking, get an appointment now. August is already filled up and we don't know what will happen in September as far as having available re-blocking slots. This is all new to us too. We've had to split our service techs into regular service people and the re-blocking crew, so re-blocking doesn't totally get in the way of repairs (much). The only good thing on the horizon is that after mid-October, the wireless world will be stable for some years, the re-blocking crew can get back to regular repairs and our service turn around time will drop back to classical Lectro levels. Best Regards, Larry Fisher
  12. LarryF

    New wireless TX deviation rules October '18

    "Kind of good for the manufacturers I guess." Actually it is pretty miserable. All current transmitters have to be re-tested and re-certified under the new standards and each frequency block is treated as a separate transmitter. This is not cheap, running into the hundreds of thousands of dollars. This is coming from our pockets now but you know where it comes from ultimately. Also, if you have older Lectro units you are intending to reblock, get an appointment NOW (caps deliberate to indicate screaming) because after September 30, Lectro will not be able (no longer legal) to reblock the previous generation units. August is already booked for reblocks and September may fill up also. If you are gnashing your teeth, remember, all this is due to big government and big money. Best Regards, Larry Fisher
  13. Indeed, the UCR200 was a pretty decent hand warmer. We had good use reports from Siberia; not so good from Panama. The UCR205 and higher 2xx numbers used switching power supplies and, shall we say, more careful design to reduce the current draw by half and the power draw at higher input voltages by even more. Best Regards, Larry Fisher
  14. Very selective receiver with narrow front end using helical resonators. Selective IF using crystal filters. The most RF selective, bullet proof, single frequency receiver we ever made but note the word "single" frequency. If somebody is on the same frequency, you can not change to a different frequency. Also, the local oscillator crystal is not as shock proof as newer frequency agile units so dropping these on concrete is chancy. The repair would be equal to the used cost (or more) of these units. There are some users running them as backup units. Of course there are still a lot of 185 VHF systems still in operation. Best Regards, Larry Fisher
  15. LarryF

    "Like" button