Jump to content



Photo

Securitymax $100 video transmitter


  • Please log in to reply
10 replies to this topic

#1 Tim Higham

Tim Higham

    New Member

  • Members
  • Pip
  • 2 posts

Posted 16 March 2008 - 10:51 AM

Just wondered if anyone had tried CCTV transmitter receivers - 2 versions available for less than £50/$100 here in the UK - http://www.securitym...ty-cameras.xhtm

I have recently acquired a Sachtler DV FX Pro rig and was wondering why I would need to spend hundreds on a video assist system when I can get the system above (obviously only for transmitting SD video to a director's monitor several metres away, and not as a replacement for broadcasting live HD!) - Any thoughts at all... many thanks

(yes, they run on 12v and weigh 950g)
  • 0

#2 Lukas Franz

Lukas Franz

    Advanced Member

  • Sustaining Members
  • 187 posts
  • Zurich, Switzerland

Posted 16 March 2008 - 06:09 PM

Hi Tim,

at first welcome to the forum. Actually those unexpensive transmitters really work, but not as good on moving objects like a steadicam. A security cam (which they're used for) is fixed on a location. Once you have the perfect frequency and TX level everything works fine. On a steadicam it has to be more stable to be useful for videoassist and/or director. The best is to use a diversity receiver which switches inbetween two different frequencies (such as wireless microphones).
The other problem is the output power of those mentioned transmitters. Mostly they are too strong for use on short distances and especially inside. The more output power the more strong reflections on walls, etc. I read those transmitters may reach 8 km...that's quite a lot! Probably not even allowed (in UK?).

Upshot: cheap transmitters work for less money but with many interferences...not my recommendation.

Best.
Lukas
  • 0

#3 Tim Higham

Tim Higham

    New Member

  • Members
  • Pip
  • 2 posts

Posted 17 March 2008 - 02:17 PM

Many thanks for that Lukas,

Yes I'll look for some diversity units - and that's interesting about the higher power versions bouncing around walls and causing interference. I think one version they make transmits over 10km! Would obviously have to get some sort of attenuator for here in the UK.
Thanks again,
Tim
  • 0

#4 Jess Haas SOC

Jess Haas SOC

    Advanced Member

  • Sustaining Members
  • 1145 posts
  • Culver City, CA

Posted 21 March 2008 - 03:27 AM

I have a couple of transmitter/receiver combos that look to be the same things these guys are selling. They can be had for even less money on ebay direct from Hong Kong. They work but there are a good amount of dropouts even when standing still. They are not anywhere near the quality of the more expensive units, but if they are all you can afford then they do work. I don't think that most of them have been certified by FCC or the EU equivalent and I know for a fact that some of them use frequencies allocated for other things such as airplanes. They are most likely not legal to use anywhere but in Asia if even there.

~Jess
  • 0

#5 UK CCTV

UK CCTV

    New Member

  • Members
  • Pip
  • 1 posts
  • London, UK

Posted 16 April 2010 - 08:27 AM

Just wondered if anyone had tried CCTV transmitter receivers - 2 versions available for less than £50/$100 here in the UK - http://www.securitym...ty-cameras.xhtm

I have recently acquired a Sachtler DV FX Pro rig and was wondering why I would need to spend hundreds on a video assist system when I can get the system above (obviously only for transmitting SD video to a director's monitor several metres away, and not as a replacement for broadcasting live HD!) - Any thoughts at all... many thanks

(yes, they run on 12v and weigh 950g)


Hi Tim,

Firstly, the website you mentioned is not Securitymax rather it is www.ukcctv.co.uk.
The CCTV transmitters and receivers are really good as they have updated their stocks with upgraded Ts/Rs.
  • 0

#6 Wolf Seeberg

Wolf Seeberg

    Advanced Member

  • Members
  • PipPipPip
  • 31 posts

Posted 25 October 2010 - 05:12 AM

here a summary of cheap and nasty stuff... actually our Mini Spy works better than Modulus etc.

SD Analog, no delay
MINI SPY TX (FCC Part 97)
Fabulous for Steadicams, Handycams, wirecams, glidecams and handheld work. Range: 250 yards with rod antenna on receiving Watchman, included excellent ¼ wave antenna with SMA connector for the Tx, 9-30V reverse polarity protected, 160mA, video on BNC input, size: 3”x2”x7/8” NTSC + PAL (needs PAL receiver for color)
Cable Channel 59, Freq. = 434 MHz only. extra cost: power cable for Lemo connector. NTSC + PAL, additional audio on special order only. “Twice as good as the professional models.” For amateur radio use FCC Part 97 only in the USA. You need to buy cables at $ 150 each!
In Stock at Wolf Seebergs Price in 2009 $ 850.00

Check http://wolfvid.com/d...CKBOOK_long.pdf
Manual 30 pages http://www.wolfvid.c..._Spy_Manual.pdf
Special audio version is available for approx. $ 950.00

Teletest British
Low power analog Tx, 7 channels 5.8GHz, Tx only $1400, HDSDI or composite in, very short range, probably flickers badly when moving. 100mW out, new Phones might interfere with it. Not sure if you need to license in USA. Matching receiver $ 600.00 non diversity. sales-uk@teletest.ne
http://www.teletest.net/
http://www.teletest....009 leaflet.pdf

Marell – British UK approved for use on 1.3GHz (1chan) analog and 2.4GHz (4chan) 75mW. PAL and NTSC. For legal use in Britain only. Receiver needs two flat-panel gain antennas, no Circular Polarization offered. Low power, short range. http://www.marell.co...nks/MVL-1394TX/
For hire for UK GBP 100/day from: http://www.opticalsu...hp?product_id=1

Bitel-Microprogetti
Tx + Rx. MTV2500 and RV2000A are CE compliant in the 2300-2700 MHz band. The other models are intended for Military applications. Fragile connectors. http://www.bitel.it/... receivers.html 1100-1500 Tx analog maybe 2x diversity receivers, good sensitivity Rx. Small Tx .15W medium Tx .8W, large for the performance, nicely built. Reasonable prices, they say made in Italy, I think the Rx is British though. RX RV2000 available diversity switching (RV 2300D), also from http://www.tarabayeg...cts_rv2000a.pdf in Ca. USA Telestar http://www.telestarc...n.com/LXLaw.htm and http://www.telestarc...ion.com/ATV.htm


Starlink
http://starmatech.com/ or http://www.avwirelesstech.com/ Jeremy Hawkins
President/CEO
Tx $ 2100 Rx $ 3000.00 2.4 G legal to sell in the USA, 14-20V 4.12" L x 3.50" W x 1.15" H phone at 818-824-4942.. Call us at 831.335.8130or Email us at jeremy@avwirelesstech.com.

superficially it looks like Chinese gear with USA paint.
Jeremy Hawkins salesman for the company said in Feb 2008: We OEM'd a specific unit for Wexler that was the same as the 1450's you can get at VER, but had specific connectors, channel presets, and power settings!
The new 1550 units that you saw on the website have the same things as the Wexler, but have more channels, are digital adjust, and are fine-tunable. We are waiting for FCC on them, but we should have FCC part 15, 74, and 90 on them in "a couple of days" according to the manufacturer.

Coherent’s 900MHz analog 10 channel
ASK FOR OUR BLOW OUT PRICES ON USED ONES
Microwave FM analog system uses special diversity receivers, that means a lot less flicker. A special version can burn TC in picture. We get 1.5 miles on a golf course out of this system after we tweak it; 3 miles on a helicopter. Often problematic in the big cities as there is masses of 900 stuff around. There is no need for a 2nd guy to point receive antennae unless you are at the ragged end of range. These systems are now produced by new owners – Halcyon halcyonmicro.com or http://cocom.com/pages/pro.htm - with higher prices. We have them in rental packages as a fully legal system in the USA for any use – No license required, FCC Part 15 licensed. These systems work better than the stuff at 2.4G because of lower frequency and diversity reception. But in the big cities 900 is full of junk transmissions by data liks etc. and range will be shorted to half in most downtowns or commercial-convention areas. Rx antennas are larger than 1.2 G. perfect for Helicopter work.
For rentals check: http://www.wolfvid.c...ntal_900Mhz.pdf
Manual 40 pages
http://www.wolfvid.c...00_Manual_2.pdf
We have some used ones for Blow out prices.Call!!!!

2.4 G high and low power – not good for moving Tx

WSV Point to point 2.4 link
This is a 1 mile video/audio link in the USA to be used under Part 97. approx .8 watt. Works best with fixed antennae (non-moving) pointing at each other. If you use this kind of system with a moving Tx the flicker is so persistent it’s annoying to the extreme. There are versions of this for overseas use with 50 mile range. Simple to set up. No technician needed. Often this becomes part of a repeater system that looks around one corner or over one hill. Available for rent (with 2 beautiful small Helix antennae) or sale. There is a wide range of commercial antennae available for reasonable prices. 2.4 in the cities is useless now as there is so much WiFi that destroys the picture. Approx $ 200.00 for the pair Tx-Rx. Sometimes this page works:
http://www.wolfvid.c..._TX_2point4.pdf

Avalon 2.4Mhz Diversity,
1 Watt (for overseas use) with 1 mile range. http://avalonrf.com/...x500_tx600.html Very low power version available for USA with minimal range – approx 50 feet. TX600 Series comply to FCC Part 74 and Part 90. You need to put up 4 pieces of 4” square flat panel antenna 2 feet apart – nicely made, pro-connectors. www.Avalonrf.com. Not good on a stage covered with chicken wire. Occasional highlight reversal like Coherent. Coherent range is TWICE. WSV FM2 is TEN TIMES. Penetration of sheet rock not good Ouch! Not much good in cities nowadays there is so much 2.4 stuff that there is no room for this to work well in the urban areas of the wired wireless world. Factory service varies as to permanently changing ownership. Price: minimum package US $7200.00. Not really sure if these are on the shelf all the time. Avalon changed owners in 05. If they don’t have it in stock I do not know if they can deliver. Similar stuff is made cheaply and poorly in China. Someone said Avalon is not in business anymore in 2009? Better check.

Yellow Jaket British diversity Rx
6 to 15VDC.Receiver Frequencies (GHz):2.370, 2.390, 2.410, 2.413, 2.414, 2.430, 2.432, 2.450, 2.451, 2.468, 2.470, 2.490, 2.510 YellowJacket Pro features 2 separate 75 ohm video and audio outputs. $ 480 sold in Texas http://hobbywireless...f2ac2bd2d5a0d08




Hobby Wireless 2.4 diversity
http://hobbywireless...products_id=208 10 CHANELS seems sophisticated from Texas www.immersionrc.com $255

Transvideo 2.4Mhz Tx-Rx
Same problems as all part 15 low power Tx in that band of freques. flickers as much as all the other analog 2.4 stuff. Trouble if there is a lot of WiFi, Blue tooth, wireless phones and microwave ovens around. Still it flickers wickedly when the transmitter moves because no diversity receiver and the high freq. License free in USA. http://www.transvideointl.com/ available thru B+H photo in NY or direct http://www.transvide...ducts/titan.htm , or from the manufacturer/repair facility in France. OK to use next to camera if nothing is moving like all the 2.4 stuff.

Teletest, Britain

http://www.teletest....cts/OZE3210.pdf
Sell a powerful 500 mW 2.4 version that is not OK in the USA except possibly for Part 97 use. Looks like nice packaging. Will flicker a lot with moving cameras unless used with a many antenna diversity receiver. With a portable 7” LCD receiver. Has to flicker badly on moving Tx. http://www.teletest....cts/OZL7007.pdf

2.4 diversity Rx board
That should help a lot if its implemented properly Teletest Ltd, 4 Shelley Road, Bournemouth, Dorset, BH1 4HY, UK Tel: 01202 646100 • Fax: 01202 646101 • Intl: +44 1202 etc http://www.teletest....aspx?id=OZU5020

Teletest makes a 5.8GHz receiver that fits on any LCD monitor with aV-Lock battery plate. For example, TV-Logic or SWIT LCD monitors.
They have four 5.8GHz transmitters. http://www.teletest....news.aspx?id=13 Paul or Nick Rose, Managing Director, Teletest Tel: +44 1202 646100
nickrose@teletest.net www.teletest.net

Black widow
They have a diversity receiver oriented towards the toy airplane market (of course its easy to receive TV from aircraft, there is no multipath) http://www.blackwido...ity24new1.html# you have to match Tx and Rx. Don’t expect a Rx to work with other stuff just because its on the same frequency. Made for BWAV, Airwave or Felsweb transmitter. (not sold in the USA) TX Frequencies: 2410, 2430, 2450, 2470 http://www.blackwidowav.com/

HP Video 2.4
Looks like a Chinese repackaging job. Approx. $3K Tx-Rx flickers as much as all the other analog 2.4 stuff. Trouble if there is a lot of WiFi, Blue tooth, wireless phones and microwave ovens around. Easy packaging for vid ass. All these 2.4 TX will do much better with circular polarized receive antennae. F 2490 MHZ, 2390 MHZ,2370 MHZ,2470 MHZ,2450 MHZ,2430 MHZ,2410 MHZ,2510 MHZ or 1240 MHZ,1040 MHZ,1010 MHZ, 1200 MHZ,1160 MHZ, 1120 MHZ, 1080 MHZ, 1280 MHZ. Not sure how these can be sold or operated legally in the USA.
http://hpvideo.tv/in...uemart&Itemid=2
couls it be this stuff repackaged $ 750.00
Based on our best selling wireless video and audio links, the WLS2404D4 series, our new WLS2404D4 uses advanced digital technology to overcome common interference issues found in the popular 2.4GHz band from devices such as cordless phones or wireless routers. These wireless video links can transmit digital video and audio signals up to 600 feet line of sight and are ideal for home and small business applications. Our digital wireless video link comes with power supplies and instructions.
http://www.securityc...wireless-system

B+H Photo 2.4 security transmitter – too little power, no diversity, not even cheap $ 800
MX-3000 2.4 GHz Audio/Video Transmitter
VRX-24L 2.4 GHz Receiver 2 Rubber Ducky Antennas
AMP-18M/24 Amplifier Used Cat. # 660201 Mfr # MX -3000S
http://www.bhphotovi...duct/800660201- USE/RF_Video_MX_3000S_MX_3000S_Long_Distance_Video.html
or RF-Video DX-2 2.4 GHz Ultra Compact Video Transmitter
$500 looks like a Canadian model http://www.bhphotovi..._GHz_Ultra.html

Asian Wolf
http://www.asianwolf.com/ ohh boy…sometimes they work when standing still $ 50.00 made in China, marketed even cheaper by Hong Kong Companies. Freq: 2414, 2432, 2450, 2468 (MHz) – not sure that this is legal in the USA
http://www.asianwolf...era-2000ma.html

High-gain 2.4 receiver antenna
The Black widow people sell a high gain circular polarized patch antenna. Not easy to find. These make a huge difference in reducing flicker. None of the 2.4 guys know of this. http://www.blackwido...chantenna1.html
We have some in stock and it helps all the 2.4 problems.

Part 15 means: http://www.access.gp...47cfr15_01.html

Good stuff is not cheap. Cheap stuff is not good. Nothing is fast nor easy.

Applied Wireless
900 MHz part 15. This band is as full as the 2.4 band. Useless in the big cities. $ 400
(805) 383-9600 1250 Avenida Acaso, Camarillo, CA 93012 Email:
http://www.appliedwi...=8&ParentCat=16
  • 0

#7 Andrew Stone

Andrew Stone

    Advanced Member

  • Members
  • PipPipPip
  • 250 posts
  • Vancouver

Posted 25 October 2010 - 08:39 AM

Hi Wolf,

Just started to pour over all this info here. The Mini Spy unit you mention of course if of interest. The docs you link to are bum links. Interested in seeing all the different elements required. You mention you need a PAL receiver to see color. What is the weight of the Mini Spy with all the attendant stuff that sits on the rig?

Cheers,
Andrew
  • 0

#8 Scott Jason Gill

Scott Jason Gill

    Advanced Member

  • Sustaining Members
  • 78 posts
  • Colorado

Posted 25 October 2010 - 09:33 AM

Hi Wolf,

Just started to pour over all this info here. The Mini Spy unit you mention of course if of interest. The docs you link to are bum links. Interested in seeing all the different elements required. You mention you need a PAL receiver to see color. What is the weight of the Mini Spy with all the attendant stuff that sits on the rig?

Cheers,
Andrew


Don't let the "FCC Part 97" fool you. That unit is not legal to use in the USA without an FCC issued Amateur Radio (HAM) License (that's what Part 97 is). Even if you have the license, it is not legal for commercial uses, only hobby and public safety use. Hams are a protective bunch and they have and will hunt down users who poach on their frequencies. I'd take my chances with some other illegal frequency before I'd light up an a ham frequency.
  • 0

#9 Jeremy Hawkins

Jeremy Hawkins
  • Guests

Posted 11 November 2010 - 05:53 PM

Wolf:

Thank you for including us in your list!

The 32 channel 1550tx units are in, as are the FCC approval #s.

The 32 channel receivers are not yet out, but many people are using the 1550s with our 8 channel receivers due to the flexibility of the transmitters. Watch this space my friends...there is much we are doing over here and the new product line is, I think you will find, really something special!

Jeremy Hawkins
AV Wireless Technologies
831.335.8130
  • 0

#10 RonBaldwin

RonBaldwin

    Advanced Member

  • Sustaining Members
  • 2351 posts
  • Los Angeles

Posted 11 November 2010 - 07:21 PM

I have had Wolf's mini spy tx for years as a back up for my modulus. The few times that I used it, it worked as well (sometimes better!) than my modulus 2000 that was supposedly beefed up by CIT years ago. If we are talking about the same one, it is not much bigger than 2 quarters stacked with a small wire antenna. Uses little to no power and weighs nothing.

rb
  • 0

#11 Jeremy Hawkins

Jeremy Hawkins
  • Guests

Posted 18 November 2010 - 01:41 AM

Also, Wolf,

We all respect you opinion as far as wireless equipment goes. You are pretty much the "Consumer Reports" of Wireless AV. We have shown you the latest versions of our existing and available equipment in person (we still have many surprises that we are reserving for an official product launch pre-NAB). What did you think? How does our equipment stack up against the rest? Are there better systems out there in the analog market?

For those who are curious, we will be at NAB this year, booth C5449. Expect to see an affordable digital system, an even more affordable analog system that far out-performs everything else, and many other new and exciting things specifically designed for the film and television industry.

Thanks, in advance, for your input!

Jeremy Hawkins
President
AV Wireless Technologies
831.335.8130
  • 0




PLC Electronics Solutions

Ritter Battery

SkyDreams

Boland Communications

Omnishot Systems

PLC - Bartech

Teradek

rebotnix Technologies

Varizoom Follow Focus

Wireless Video Systems

IDX

Media Blackout - Custom Cables and AKS

BOXX

Betz Tools for Stabilizers

GPI Pro Systems

Engineered Cinema Solutions

Paralinx LLC