Use UTP (unshielded twisted pair) CAT 5 24 AWG (or over) to have the best transmission quality performance. To use STP (shielded twisted pair) cable, the shielded would cause internal signal interference, so the transmission range would be shorter (1.5KM--- >0.8KM) than UTP cable.

Un-twisted wire not to be recommended, which easy have interference and range would be shorter.

Yes, OKINA USA's Video Transceivers could use ordinary telephone wire to transmit and the range up to 1000 feet (300 meters). But the interference would occur easily, therefore we do not recommend this solution unless special environment requested.

Yes, Use category 6 twisted pair wire, the range would be longer and have highly interference immunity.

Yes, one of benefits to use OKINA USA transceivers is interference rejection. OKINA USA video signals can reside in the same wire bundle as multiple video signals, telephone wire, Ethernet, coaxial…etc. Power wire is not to be recommended to put in the same bundle to avoid interference.

Yes, you could use any spare pairs to transmit video image via OKINA USA products. Normally, PC would use the first and second pairs on the Internet, so the third and fourth pair could be used for video signal transmission, be sure this cable not through any hub.

1. Coaxial cabling transmission over 650 feet (200 meters) (RG59), the video signal would loss and have bad video image. Using OKINA USA passive video transceiver range could up to 1000 feet (300 meters) for Color, 2000 feet (650 meters) for B/W, even 1KM, 2.4KM to work with active transceiver.
2. To use OKINA USA's VPB400TRJS 4 channel video balun twisted pair transceiver, only need one single CAT 5 cable to transmit 4 video signals for cable saving and fast installation.
3. CAT 5 cable cost is only half of Coaxial cable and much more easy installation than coaxial cable.

Yes, using 4 pairs CAT 5 twisted pair cable that could use OKINA USA model VPB111RJ to transmit video, power and data signals. You can also use our VPB444TRJ to transmit 4 set of video, power and data signals.

No, OKINA USA transceivers do not support RF/VHF/UHF signal. Unless special design demodulator and modulator to be used.

Yes, you could use VGA CONVERTER can be transmitted to Analog signal to Digital signal (VAG). Or use OKINA USA VGA Extender by using CAT5 to extent VGA signal up to 3000 feet.

No, OKINA USA transceivers do not support the wide bandwidth cable TV signal. However, a single channel can be sent if a demodulator and modulator are used.

The reason to cause “rolling” image is from the power interference during transmission or the video transmission range is too big between 2 or multi channels to have the signal not balanced. You could add VGIBNC (High Performance Video Ground Loop Isolator Filter) for extra interference rejection.

Coaxial cabling either twisted pair cabling may have “Power Waving” interferences that most from High Frequency (such as radio) or Differences in ground potentials are typically caused by unbalanced power line loads. Then you could add our VGIBNC “High Performance Video Ground Loop Isolator Filter” to eliminate the interference.

Generally, It is not easy to find out where this kind of interference from, so we would recommend use monitor to check each connecting point (between two wire connection), to find out where is the source of interference.

Video signal would be degradation once through any cable transmission, either coaxial or twisted pair wire. Especially the video signal through DVR (analog to digital signal) that signal loss would be bigger. If the video signal output less than 0.8Vpp, the picture display would lack quality and have bad or ghost video image. You could use our following products for improvement: for twisted pair cabling, you could alternate the passive receiver to active type VAB100R / VAB400R / VAB800R / VAB1600R, which built in brightness and sharpness controls. If range over 1.5km, you could add one more active video transmitter for series connection.

One Video signal split into 2 channel that the signal would be degradation to cause the picture not stable. Please use our Video Distributor VA123BNC/VD128BR/VD2216BNC/VD6212BNC/VD16248BNC which make amplify and stable video signal before distribute the signal.

Please correct the following two conditions :

1. These products are designed for long range transmission, the unit built in video amplifier function. If your transmission range under 300 feet (100 meters), the video gain function is too big to have snow or wavy, bright image occurred. Recommend to use them with range at least over 300 feet (100 meters) or alternate OKINA USA passive video transceivers for short range transmission as well as cost saving.
2. The active receivers have "5 position distance range switch" for different range transmission. Please switch to appropriate range upon your application to avoid any weak or bad image.

Please make sure to make good cable connection to avoid video loss, interference even cable oxidation. The best way is soldering the cable or use communication cable UY connector Furthermore do make sure to cut the unnecessary cable while doing the series cable connection as the following:

Wrong twisted pair cable connection would cause the video image wavy and shaking if only use one pair wire for one channel video transmission, please check the cable connection and make sure the TX wire and RX wire must be equivalent. ( Example: TX: 1, 2 = RX: 1, 2 or TX: 7,8 = RX: 7,8).

Please check the networking cable on TX and RX must be under standard wiring 1, 2, 3, 6, 5, 4, 7, 8 into RJ45 connector as following:

Normally, the cabling at outdoor and have long range transmission for camera. That would have higher rate on surge or lighting damage, even some of our products built in TVS ( Transient Diode for Surge Protection), but the products still damaged once have stronger surge or lighting.

No, OKINA USA device is highly immune to interference. CAT 5 UTP twisted pair wire can immunity the RF interference. The only concerned is the high power (signal noise ratio) RF signal would have video interference occurred, neither coaxial nor twisted pair cabling transmission. You could try to use twisted pair wire with overall aluminum foil Mylar shield with one drain wire and braided shield. Or move away from high interference area.