bendybones Posted October 5, 2014 Report Share Posted October 5, 2014 I'm looking to upgrade to a pair of Zax radios and a receiver for bag work. I am mainly curious about the difference in range and power efficiency between the LA2/LT2. I'm wondering: 1) Is the LT2 available at 125 mW? perhaps via special order / mod? 2) How is range with 50mW using whip antennae on the QRX235? (I'm working from a bag) 3) Does the LT2 run twice as long as LA2 assuming same power setting etc? 4) Or like 2/3 of a day instead of half a day? 5) Is there any advantage to the QRX200 over the QRX235? (I remember Rado looking to swap his 235 for a 200 but don't remember why) No Zax dealer in my country so any advice/experience is much appreciated. Quote Link to comment Share on other sites More sharing options...
cameronlenart Posted October 5, 2014 Report Share Posted October 5, 2014 5.) QRX 200 covers 200MHz (6 blocks). No QIFB (Zaxnet) option. QRX 235 covers 35MHz (1 block). QIFB can be added. You have to ask yourself if you want/need wideband/zaxnet, or if you have any other Zaxcom gear you want to integrate and how you want to do that. To be honest I havnt really noticed much difference in my LA at 50mW and 100mW. You have to consider what batteries you'll be using ie do you want to buy new lithiums every shoot or use rechargeable? I went LA because I do mostly non scripted, and want to use rechargeable. Quote Link to comment Share on other sites More sharing options...
bendybones Posted October 5, 2014 Author Report Share Posted October 5, 2014 Yea, not sure I'd need wideband on the QRX as I will only be running 2 transmitters. Any other reason I'd need wideband? I will be integrating this with Nomad 12. I have 2 borrowed ERXs but will be getting some ERXs soon. I want to have one ERX on cam receiving scratch audio and TC and two more ERXs for director and script Nomad can potentially do this, but I am currently looking into solutions to improve the performance of Nomad's aerial. Generally I will use disposable Lithium AAs. Quote Link to comment Share on other sites More sharing options...
Jack Norflus Posted October 5, 2014 Report Share Posted October 5, 2014 1) there is no option for 125mw for the LT. 2) I find I use 50mw on my LA for most situations and I find I get acceptable range. 3) not exactaly twce the run time but close - I forget the specs off thr top of my head but I beleive it's 7 hours for the LA vs 4 or 5 hours for the LT. 4) yes 5) no difference in performance - it's just the 200 is wide band and the 235 is block specific. Being that the 235 isn't wide band there is room for the optional QIFB. Which if you are running a nomad you don't need the qifb. Quote Link to comment Share on other sites More sharing options...
Derek H Posted October 5, 2014 Report Share Posted October 5, 2014 How well are rechargeable batteries working in the 2.0 series gear? Quote Link to comment Share on other sites More sharing options...
glenn Posted October 6, 2014 Report Share Posted October 6, 2014 Power consumption has not changed on the LA or LT transmitter. Any battery is fine for the LA. The LT must use Lithium or a good Nimh battery like a 2600ma cell or better. Internal recording does not effect run time. The best battery life will be with the TRXLA2.X at 50mW and lithium batteries. 7+ hours is not uncommon. At 125mW the battery life would be about 5.5 Hours. ymwv Glenn Quote Link to comment Share on other sites More sharing options...
Derek H Posted October 6, 2014 Report Share Posted October 6, 2014 So, safe to assume something like 4 hours on NiMH for an LA2 at full RF power? Quote Link to comment Share on other sites More sharing options...
soundslikejustin Posted October 6, 2014 Report Share Posted October 6, 2014 So, safe to assume something like 4 hours on NiMH for an LA2 at full RF power? Not safe to assume. Try/test it. I get 4-4.5hrs on 2 Imedion (2450mAh NimH) at 50mW with the LA2.6 Quote Link to comment Share on other sites More sharing options...
studiomprd Posted October 6, 2014 Report Share Posted October 6, 2014 Der: " So, safe to assume something like 4 hours on NiMH for an LA2 at full RF power? " you know better! Quote Link to comment Share on other sites More sharing options...
bendybones Posted October 6, 2014 Author Report Share Posted October 6, 2014 So my main concern is what kind of range people are getting with QRX 235 whips and TXs at 50mW. How long is a piece of string, I know. Say for bag work, are people getting dropouts and turning up the TX power? Quote Link to comment Share on other sites More sharing options...
studiomprd Posted October 6, 2014 Report Share Posted October 6, 2014 bendy: " Say for bag work, are people getting dropouts and turning up the TX power? " sometimes. Quote Link to comment Share on other sites More sharing options...
Olle Sjostrom Posted October 6, 2014 Report Share Posted October 6, 2014 Here's a man that will teach you there are no constants ever in our line of work, constantly. At least he's being consistent about it Quote Link to comment Share on other sites More sharing options...
Jack Norflus Posted October 7, 2014 Report Share Posted October 7, 2014 So my main concern is what kind of range people are getting with QRX 235 whips and TXs at 50mW. Just did a shot this morning using both an smqv at 50mW and an LA at 50mW using just whips. Both units preformed exactly the same. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.