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Telewave-io
United States
Приєднався 19 кві 2017
Telewave.io designs and manufactures high quality products for RF networks. It serves wireless system operators, public safety providers, local and state governments, and federal agencies. The company was founded in 1972 and is based in Fremont, California. Telewave.io strives to be the premier supplier of seamless interoperable communication systems that provide security and reliability in mission critical eco-systems for both commercial and military applications worldwide. Telewave.io products are made in the USA and used by more than 7,500 equipment and network manufacturers and government agencies throughout the world.
Introducing AI-O Observability
Learn more about AI-O Observability which we announce at IWCE 2024.
Переглядів: 31
Відео
Overview of Our Land Mobile Radio Solutions
Переглядів 2254 місяці тому
Explore our latest land mobile communication solutions showcased at IWCE 2024 in Orlando, FL! Dive into innovative technologies designed to boost reliability and efficiency in mobile communications. Visit our website: www.telewave.com
IWCE 2024 TWIO+ DAMM
Переглядів 824 місяці тому
Discover the BS422 repeater from DAMM, a valued partner of ours. Learn how this advanced communication system enhances connectivity and reliability. Find out more about its features and benefits. Visit our website: www.telewave.com
IWCE 2024 Event Recap
Переглядів 1234 місяці тому
Take a look at our recap video highlighting IWCE 2024 in Orlando, FL!
Wireless Leadership Summit 2023 Recap Video
Переглядів 579 місяців тому
Check out our recent participation in the 2023 Wireless Leadership Summit in St. Louis, MO! Music: Dreams - Bensound License code: PASTE YOUR OWN CODE Support by RFM - NCM: bit.ly/3c8WxMf
Real People Making Real Products For Real Customers
Переглядів 35510 місяців тому
Telewave.io has dedicated over five decades to serving the telecommunications industry by crafting American-made products. In this video, you will be introduced to the production team and take a peek behind the scenes of our manufacturing and machine shop, located in Fremont, California. Website: www.telewave.com/ Video Participants (In Order of Appearance): Jorge Nogueda, Assembly Jaime Pename...
APCO 2023 Recap
Переглядів 177Рік тому
Discover Telewave.io's APCO 2023 booth and listen to our current customers share their feedback on our products and services.
Telewave.io Training Sessions
Переглядів 293Рік тому
A brief video that showcases what you can expect from Telewave.io Training Session. If you or your company are eager to explore further Telewave.io Training Sessions, feel free to contact us at training@telewave.com. We'll be delighted to assist you!
Telewave.io VHF/UHF/800MHz Software Radio Defined Solutions
Переглядів 355Рік тому
Learn more about the BS422 repeater from DAMM, one of the two partnerships that we announced at IWCE 2023 in Las Vegas.
Telewave.io 44DL Digital/Analog Broadband RF Wattmeter
Переглядів 2,4 тис.Рік тому
Like Telewave’s venerable 44A Wattmeter, the next generation 44DL wattmeter is housed in the same ruggedized housing and form factor. The digital version offers the same capability to measure CW, FM and FSK signals AND can display the power readings in Watts or dBm with today’s popular digital modulations formats like DMR, P25, LSM and others.
Telewave Digital Wattmeter, Model 44D Overview
Переглядів 4,4 тис.6 років тому
Introducing the Telewave Model 44D. This new digital wattmeter allows users to measure digital and analog modulation in an easy-to-use interface. Learn more about the basics of this device through this first look video! More details are available at: www.telewave.com/product/rf-digital-wattmeter-model-44d/ For toll-free support, please call: 1-800-331-3396 For other inquiries: www.telewave.com/...
Checking an Isolator Using a Network Analyzer
Переглядів 3,4 тис.6 років тому
This video also covers the topic of how to check an RF isolator by using a network analyzer instead of a spectrum analyzer. Slight tuning will also be shown here. Read more about RF isolators at: www.telewave.com/2017/10/30/rf-ferrite-isolator-basics/ For toll-free support, please call: 1-800-331-3396 For other inquiries: www.telewave.com/contact-us/
Ferrite Isolators or Circulators Characteristics and Uses
Переглядів 10 тис.6 років тому
This video covers the functionality and applications of a typical ferrite isolator/circulator in an RF system. Learn more at: www.telewave.com/2017/10/30/rf-ferrite-isolator-basics/ Browse our current catalog of RF isolators and receive free shipping on your next online order here: www.telewave.com/product-category/rf-isolators/ For toll-free support, please call: 1-800-331-3396 For other inqui...
How to Check an Isolator Using a Spectrum Analyzer
Переглядів 4,5 тис.6 років тому
This video covers the topic of how to check an RF isolator using a spectrum analyzer with a tracking generator. Read more about RF isolators at: www.telewave.com/2017/10/30/rf-ferrite-isolator-basics/ For toll-free support, please call: 1-800-331-3396 For other inquiries: www.telewave.com/contact-us/
Model 44AP Wattmeter Overview
Переглядів 7 тис.6 років тому
The Model 44A/AP RF Wattmeter, by Telewave, is a powerful tool for measuring power without the use of elements/slugs. Learn more at: www.telewave.com/product/rf-wattmeter-model-44ap/ For toll-free support, please call: 1-800-331-3396 For other inquiries: www.telewave.com/contact-us/
Testing a Low Pass Filter with a Network Analyzer
Переглядів 7 тис.6 років тому
Testing a Low Pass Filter with a Network Analyzer
Telewave TPRD-1554 Cavity Duplexer Tuning
Переглядів 23 тис.6 років тому
Telewave TPRD-1554 Cavity Duplexer Tuning
Telewave TPRC-1505 Pass/Reject Cavity Tuning
Переглядів 9 тис.7 років тому
Telewave TPRC-1505 Pass/Reject Cavity Tuning
Telewave TWNC-1505 Notch Cavity Tuning
Переглядів 2,5 тис.7 років тому
Telewave TWNC-1505 Notch Cavity Tuning
Telewave TWPC-1505 Band Pass Cavity Tuning
Переглядів 10 тис.7 років тому
Telewave TWPC-1505 Band Pass Cavity Tuning
Telewave TWPC-1505 Band Pass Cavity Overview
Переглядів 9 тис.7 років тому
Telewave TWPC-1505 Band Pass Cavity Overview
Top
Thanks for a very informative video. I bought a TRPD 1554 on ebay that was tuned to 158 mhz and 155 on the low side. I had to install 18ph capacitors on the high side to get back the 600 khz split for ham use (as Telewave recommended). However, the notch on both the TX and RX sides was on the higher side. Since I am not in the US, to send the duplexer back to Telewave, I ordered some RG402 cable and made my own coupling loops and was successful getting the notches where I wanted on both sides. When the duplexer was tuned using the Rigol 815TG, I was able to achieve over -75 db at about 1.2db insertion loss per side. However, knowing that reducing insertion loss too much lowers the Q, I chose to settle for 1.5db insertion loss that gave me better Q. Although the final effort seems satisfactory, I am assuming that my inter cavity cables might be cut for higher than the ham band. Can you please tell us the theory behind how to move notches from the low side to the high side and vice versa? Is it dependant on inductance if the loop? At least one other person has asked the same question and an answer will be beneficial to us hobbyists. Thanks Telewave.
What is the model of return loss bridge are you using? Thank you.
This video didn't show how to tune the cavities...the 1505 isnt the same as these cans.
"promosm"
Traductor
I want one.
What determine the 17db reference line?
Why tjese called forward directionals
Hello good morning. checking the cavity adjustment video, it strikes me that within the adjustment process, the screws that hold the female connector to the cavity are tightened or loosened, my question is: those should not be touched within the readjustment process of the cavities due to changes in frequency?, or if they should be adjusted to achieve an optimal fit?
We are a large manufacturing vendor of passive components in China. We can provide you with customized productions with good quality and pretty competitive prices!
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Save your money and go with a Bird. We purchased 4 of these and all 4 have failed to power up. Sent in for RMA repair because they needed new batteries and it is a factory-only repair. Took a year to get back and their service is the worst. Needless to say, when we finally got them back they didn't last a month. Absolute junk. DON'T PURCHASE THIS HORRIBLE GARBAGE!!!!
I bought one of these meters April 2020, worked fine for 6 months then failed to power up. Finally had Telewave issue warranty RMA (difficult process)and sent back in Feb2021. More than a year later Telewave still have not fixed it, and mostly ignore my calls and emails for a progress update. Not happy.
Hola donde puedo comprar sus productos
I have a combiner with 4 of these cavities in the 88 - 108 MHz band that I need to retune. How do I calculate the length of the cables?
Measure the length of conductor and length of tuning couple
Show 👏👍
What is the valu or specification of Piston tuning capacitor in TPRD-1454 ? It wikk be the great help
20pf in the TRPD1554
I don't do any of this anymore, LOL if I live long enough I might. I'm 73. This is just an EXCELLENT video
thank you for the video, I have just buy a rigol 815 with tracking gen, pleased to see this video
Very informative sir, thank you.
Nice video! You guys should do more of them. You make great products.
I AM THE ENGINEER WHO DEVELOPED LOW PIM ANTENNA'S FOR TELEWAVE ; AND THEN ROBERT BAGHERI GAVE ALL CREDIT FOR MY WORK TO AMIN RIDA ; AND THEN TELEWAVE FIRED ME ; JUST TO COVER IT ALL UP...... TELEWAVE "HAS NO CLUE" HOW TO BUILD LOW PIM ANTENNA'S ; LET ALONE NO CLUE HOW TO BUILD LOW PIP / LIGHTWEIGHT TOP LOADED CO-LINEAR ANTENNA'S.
we need to have a chat.... trying to design and build a 10dbd collinear for 470-480mhz at the moment and having nothing but issues
@@abitofeverything9970 would love to help you, but I was fired from Telewave by A.R. and S.S. You will have to get support from them......
@@garymoore3497 I don't support businesses that treat valued employees like that.
@@abitofeverything9970 Thank you....
Does it matter what side u tune for return loss on. Seems I can always get one side great but not the other, going back and forth...
Thanks for this, it's much appreciated. Any clue as to whether using it below 20 MHz would damage the meter at all? Not bothered about accuracy, just routine deployment as a running check on reflected power. Thanks.
Dear Friend.. congratulations for you video... please you can make a video but in spanish... or with subtitules in spanish!! Regards from Chile!
oye que chucha .. me encontre uno de esos aca en usa.. pa que sirve?
Our unit has spent more time back to the factory than it has in the field. A $1600.00 disappointment.
i really like the Rig expect AA-600 or the AA-1000
❌ DITTO !! Total waste of HARD-EARNED *DONATED* Funds! (volunteer fire department who maintains its own gear) I love my 44-AP.... revolutionary in the RF service world as no *EXPENSIVE* “slugs” are required. This digital model ended up souring us on Telewave. We sold the meter for 1/3 of what we paid for it AND warned the buyer of everything prior to accepting payment. We USED to purchase Telewave for practically everything RF. Even their folded UHF dipole antennas were semi-“gamechangers” as they can be shipped anywhere without an oversized shipping problem due to the masts normally provided. We were purchasing aluminum pipe locally to use as mounting masts. *AFTER THE DIGITAL METER NIGHTMARE ->> WE COMPLETELY STOPPED USING TELEWAVE... ANTENNAS/ DUPLEXERS / FILTERS / METERS !* (it’s a matter of principle.... b/c their other products are generally fantastic) Bird has a digital metering “solution “, but it is cumbersome/ requires all sorts of parts and modules/ is EXPENSIVE. We were approached by their marketing folk and offered a complimentary donation of a complete digital “package”, BUT there were strings attached. They wanted a review (to publish).. which was perfectly fine and expected.... It was the “INCLUDE TELEWAVE NIGHTMARE DETAILS” that was a problem. It’s never worth the time getting involved in these sorts of industry battles when you are an unpaid volunteer. So... we still need a solution! I’m willing to purchase a device and donate it to the department just to make my daily tasks easier. Anyone have any recommendations? I noted the RigExpert recommendation above, but i’ve always assumed they were more analyzer’s, more than power and reflected power meters and tailored for the amateur/ham community. Thanks.
@@PowderMill I was systems engineer on that program. Much of the layout was shoved down our throats by the designer ; D. Devall ; and Telewave's fake Ph.D engineer not near smart enough to get a grip on this guy. I have the fix for the 44D. Is real simple , but I don't think the current management at Telewave would listen to me..... I even showed them, in the lab, with an oscilloscope what was wrong, and how to fix it...... But I think they threw me out in time , probably just to cover it up.........
@@garymoore3497 So can you share the fix? I got ten of them and 5 of them are failing to power up.
@@davegreen5777 they under warranty ?
when and how to use a preselector duplexer? and when to use a band pass filter, when to use a band pass/reject filter and when to use a notch filter?
I'm making a duplexer set for 147.300Mhz TX and 147.900 RX I want to know if the TX and RX sides are the same, both with capacitor? how to move the notch opposite from the peak? I will appreciate your answer.
Hello, I'm making some duplexers (first time) I want to know if the TX and RX duplexers are the same, I mean they have both in TX and RX side an capacitor? because the RX side is opposite of the TX, how to get that reverse?
Hi Sergio, Think of the duplexer as a Pass High side and a Pass Low side. There is no limitation between TX and RX Side, but rather, a Pass High Frequency side vs Pass Low Frequency side. Connect the TX and RX to match the frequency specified side of the duplexer.
@@telewave-io9709 What is value and part no of Tunning capacitor for TPRD 1454
Reading my post above might help if you have bought a used duplexer that was tuned for a higher frequency outside the ham bands. Maybe not, but just a thought
I have some similar TX TX System 28-38-03A units for sale on ebay, my handle AppliaceWorks Thank for making this video !
Great video guys. You make fantastic products.
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Interesting video ! Congratz !
Muy buena la explicación sobre el uso del vatimetro telewave!
What make/model network analyzer are you using in this video?
Hi Doug, we've used an HP 8714C Network Analyzer for this video
What make/model torque wrench are you using in this video on that antenna connector?
Hi Doug, we used the Andrew Calibration #128753 1-1/4" Wrench on the antenna connector shown in this video.