Jeff Wexler Posted April 16, 2021 Report Share Posted April 16, 2021 Glenn Sanders had a good presentation of the new ZMT-4 transmitter with Thomas Popp of Trew Audio. Quote Link to comment Share on other sites More sharing options...
VASI Posted April 16, 2021 Report Share Posted April 16, 2021 Now we are talking Zaxcom. Looking forward to hear more from the field about this. Quote Link to comment Share on other sites More sharing options...
John Blankenship Posted April 16, 2021 Report Share Posted April 16, 2021 Here's also an interview with Zaxcom's Colleen: Quote Link to comment Share on other sites More sharing options...
VASI Posted April 17, 2021 Report Share Posted April 17, 2021 Glenn, Is it possible to have DME band? Recently tests with MCR54 from Wisycom at Greece and Romania (which I am here for a project now), DME band is like a clear summer morning sun. Noise floor is -10 dmuV average and lower. Thanks Quote Link to comment Share on other sites More sharing options...
glenn Posted April 17, 2021 Report Share Posted April 17, 2021 What freq is DME band? Quote Link to comment Share on other sites More sharing options...
Stuart Posted April 17, 2021 Report Share Posted April 17, 2021 https://www.raycom.co.uk/dme-welcome-to-the-future/ Wisycom are across it. Quote Link to comment Share on other sites More sharing options...
Derek H Posted April 18, 2021 Report Share Posted April 18, 2021 What is the current status of the DME band in the UK? This blog post is from 2019. Still only able to license in the UK? Quote Link to comment Share on other sites More sharing options...
VASI Posted April 18, 2021 Report Share Posted April 18, 2021 Hi, What Stuart posted about DME. As far I know, all wireless for F1 has been moved in that band. Currently we have some problems in 600 band in Romania (plus we are missing record functionality for safety). For Greece 600 band isn't bad, but government start to sell spectrum for 5G. Quote Link to comment Share on other sites More sharing options...
Mattias Larsen Posted April 18, 2021 Report Share Posted April 18, 2021 5V, Finally! 48v and NeverClip, good job on this one! Quote Link to comment Share on other sites More sharing options...
John Blankenship Posted April 18, 2021 Report Share Posted April 18, 2021 37 minutes ago, Mattias Larsen said: 5V, Finally! 48v and NeverClip, good job on this one! Having put one through its paces, I'm happy to report that this unit is indeed what it appears to be -- the functionality of both the ZMT3 and ZMT3-PH2, with an improved preamp, full Neverclip, more battery life, and 5v. lav support. A note about 48v. phantom power. Any quality 48v. mic is designed to operate properly within ten percent of that voltage (or wider). This means that any voltage from 43.2v. to 48v. is sufficient to operate the mic properly. Many 48v. supplies are very basic and under the load of operating conditions actually supply less than the full 48v. To maximize battery life, Zaxcom has chosen a highly regulated 45v. as the actual output. Good regulation at 45v. means the voltage is always within necessary specs for a 48v. phantom powered microphone. Quote Link to comment Share on other sites More sharing options...
Derek H Posted April 18, 2021 Report Share Posted April 18, 2021 Thanks for the report, John. I’m curious, did you notice any improvement in sound from lavs with a full 5V? Quote Link to comment Share on other sites More sharing options...
ao Posted April 19, 2021 Report Share Posted April 19, 2021 it seems to tick all the boxes that folks have been asking for. we have been avoiding using our zmt3 transmitters because not making it to lunch is a headache, and during covid times, even more so if i can get an honest 6 hours out of it, i'm in Quote Link to comment Share on other sites More sharing options...
John Blankenship Posted April 19, 2021 Report Share Posted April 19, 2021 51 minutes ago, Derek H said: Thanks for the report, John. I’m curious, did you notice any improvement in sound from lavs with a full 5V? So far I've only tested it with a DPA 4063 Core and didn't push it to the limits. Some other beta testers have reported their positive comparisons on a Zaxcom Facebook group. While I can state that it performed well with the lav, my testing focused more extensively on boom use and a whole series of run-time tests. While I've enjoyed both the freedom and sound using a ZMT3-PH2 for boom, the ZMT4 sounds even a bit better -- a tribute to the improved preamp. Quote Link to comment Share on other sites More sharing options...
glenn Posted April 19, 2021 Report Share Posted April 19, 2021 The 6 hour run time is kind of a minimum. Better batteries and power roll will get you closer to 7 hours. If you can do without Zaxnet you can add about 1 more hour as well. The 6 hour figure is typical. Quote Link to comment Share on other sites More sharing options...
Wandering Ear Posted April 20, 2021 Report Share Posted April 20, 2021 Ooh. Is power roll back in the ZMT series? I actually miss that feature more than I thought I would since moving all my radios to ZMT's. Extra battery life is key no matter what type of sound you work in. Well done. Quote Link to comment Share on other sites More sharing options...
Conor998 Posted April 21, 2021 Report Share Posted April 21, 2021 Any mention of RFI improvements with cmit & kmr82i mics? Also, 50mW max may be problematic, correct me if i'm wrong please. Quote Link to comment Share on other sites More sharing options...
Derek H Posted April 21, 2021 Report Share Posted April 21, 2021 Pretty much all new digital transmitters on the market are 50mW max. Not saying it’s not a bummer but 50mW is looking like the standard going forward. Quote Link to comment Share on other sites More sharing options...
John Blankenship Posted April 21, 2021 Report Share Posted April 21, 2021 For reference: 50mW is only 3dB less than 100mW. 25mW is 6dB less than 100mW. 10mW is 10dB less than 100mW. Quote Link to comment Share on other sites More sharing options...
VASI Posted April 22, 2021 Report Share Posted April 22, 2021 Nearly 70% you need lower mW output power and better signal reception (aka fin antennas). Quote Link to comment Share on other sites More sharing options...
Michael P Clark Posted May 13, 2021 Report Share Posted May 13, 2021 On 4/18/2021 at 7:19 PM, Derek H said: Thanks for the report, John. I’m curious, did you notice any improvement in sound from lavs with a full 5V? When using 5v microphones, and not 4063’s, the dynamic range for these microphones is finally achieved. Quote Link to comment Share on other sites More sharing options...
osa Posted May 26, 2021 Report Share Posted May 26, 2021 I seem to have a hangup with putting my zmt4 to sleep and unable to wake or back to on. When i send the signal from the nova to make the transmitter off, setting it to "wake" and switching to "on" brings the transmitter back but it's almost as if there is no voltage for the mic. I see green as if the transmitter is back on but no audio. My only fix is to go back to the transmitter, power off and back up again and all is back to normal operation. Anyone else have this happen? my zmt-x comes back to full operation with "wake" and my zmt3's comes back to full operation with "on". Quote Link to comment Share on other sites More sharing options...
John Blankenship Posted May 27, 2021 Report Share Posted May 27, 2021 It's a firmware fix. Unfortunately, you didn't mention which firmware you're on. Quote Link to comment Share on other sites More sharing options...
osa Posted May 27, 2021 Report Share Posted May 27, 2021 My bad, unfortunately my transmitter was on talent at the time. V4-05 is what i show Quote Link to comment Share on other sites More sharing options...
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