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About karlw

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    Hero Member
  • Birthday 10/28/1966

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  • Location
    Rio Rancho, NM
  • Interests
    Music, good books, astronomy, audio.
  • About
    VP of sales & marketing at Lectrosonics, Inc., classical musician, family man.
  • Interested in Sound for Picture

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  1. Yes - you can display as many frames as will fit - just use the zoom in/zoom out function. On US computers, it is just CTRL+ or CTRL-. But there is a function in the "View" menu allowing to zoom in/out with a little slider. With a lot of channels, the info frames can get small, but with 12 channels - no problem - easy to read from a normal distance.
  2. IYS - I'm not sure this is the same issue as reported by the OP. What mics are you using with these transmitters? How are they wired? Have you tried other microphones, or line level sources? How is your input gain set? What compat mode are you using? Karl Winkler Lectrosonics, Inc.
  3. Hi Matthias, the workaround is to disable the remote control function (rc=off).
  4. For future reference: any passive antenna is reciprocal: it has the same characteristics (pattern, gain) as a receive antenna and as a transmit antenna. Most active antennas cannot be used as transmit antennas since the amplifier only works one way. There are recent active antennas, like our ALP690, that can be used either way. When powered, it is an active antenna, and when not powered, it is a passive antenna and can be used that way for transmitting.
  5. The cost depends on the unit/s involved - usually it requires replacing the RF board in the transmitter and receiver. It is usually about 1/3 to 1/2 the cost of buying them new. Not all older models can still be re-blocked. Please reach out to our service dept. at service.repair@lectrosonics.com with specific questions, and they'll give you exact quotes by model and let you know if the models you're asking about can be re-blocked.
  6. Hi roundbadge, It may be interesting to note that the DPR system is quite flat in the low frequencies (see below trace showing frequency and phase response), especially when the HPF is set to 25 Hz (lowest setting). That said, there is a gentle rolloff down to -3 dB at 20 Hz. Perhaps the A10 has a slight bump in the lower frequencies? Nothing wrong with that - the goal is of course for these things to "sound good" which is certainly a subjective thing.
  7. Frank, if you haven't already, please contact the Lectrosonics Parts & Repair dept. at service.repair@lectrosonics.com so they can log those serial numbers as "stolen" and we'll keep an eye out for your gear if it ever comes in for repair.
  8. Hi Daniel, I think this is the video you are thinking of - it was part of my "Wireless Side Chats" series early in the pandemic shutdown: https://www.youtube.com/watch?v=TSnAUjgZoTI It is an overview of RF spectrum, how wireless mics fit in, and a brief summary of some of the first practical systems that were used for broadcast, stage productions, and TV/Film. It doesn't go into a lot of detail about the time period in question, nor specifically about wireless mics for film, per se. -Karl
  9. I've been playing with a pair of these for the past couple of days and all I can say is "wow" these are great. For the price? Crazy! Very good sound, comfortable, simple design, and look they will hold up quite well. They are a no-brainer in my book.
  10. In addition to Larry's recommendations, I will suggest looking at some band filtering and possibly attenuation. The ALP690 antenna offers both. With your ALP620s and short cables, you are likely pulling in more RF than you really need, which raises the noise floor and can increase intermods in the receiver. By putting a bandpass filter at "6" on the antennas (470-608) and then bringing down the gain by say 3dB (set the gain to -3), you will see your noise floor go down and also you'll reduce the possibility of strong out-of-band signals desensitizing your receivers.
  11. Hi Jon, did you purchase this kit new or used? What are the firmware versions and serial numbers, please?
  12. Since our daughter is off to college, Jane and I have inherited two rabbits and a mouse - the mouse "Baby" passed away last week at the ripe old age of about 1.75 years... the rabbits - "Bert" is a California, and "Francis" is an American Sable. Super quiet, fairly clean, gentle animals. But they can be mischievous, too. Every once in a while, they'll figure out how to get out of the cage, and just hop around and check stuff out, hide under the bed, etc. Fortunately, they are not "chewers" so nothing gets damaged.
  13. THS - if this was early enough in the "discovery process" (figuring out the cause) then yes, it's possible that the hardware fix had not yet been developed and thus there was no warranty work to correct it. But, you bring up a good point about the wiring - different lav mic wiring schemes show a lot of variation in this problem. And, you are correct that the "servo only" wiring schemes (figs 9, 10 and 11 on this page) do not exhibit the issue. Since the "universal" wiring allows wiring of transmitters that were made pre-2005, I would suggest to everyone to use the servo-only wiring unless you
  14. Hi Chickaboom, One thing to test is to turn off remote response (RC off) in that transmitter and see if the whine goes away. Where to find that is in the Power button menu, Remote, Ignore. If so, then there are some hardware updates that need to be done on that unit. We can do those here at the Lectrosonics HQ - it would be considered an extended warranty issue.
  15. Alex, I did a series of "wireless side chats" earlier in the year to cover some of the most important concepts in wireless microphone use, including spectrum basics, band planning, frequency coordination, etc. so hopefully the series is useful to you for your background study: https://www.youtube.com/playlist?list=PLwnOnolFSN5K2-2QZOwzVq-0ZFYgoPXDH Knowledge of these fundamentals can really help get you out of a jam when the pressure is mounting, but even before that, you can head off a number of problems before they happen in the first place. And, have a plan B, and a pla
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