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     PRODUCTS / PRO-AUDIO, VIDEO & DATA CABLE / VIDEO CABLE / Miniature HDTV/SDI Coax		  
     
  Miniature HDTV/SDI Coax  
         
   
  Miniature coax that features exceptionally low attenuation for its type while maintaining a reduced size and weight. All utilize a pure copper center conductor, low-loss foam polyethylene dielectric, and broadband foil and braid shielding. VDM230 features the same gas-injected dielectric found in the HD coax series making it ideal for Standard Definition digital video, AES3id digital audio, or High Definition digital video interconnect within mobile production trucks. VDM250 and VDM250D are recommended for short distance, low bit-rate digital, analog video, or SVHS applications.
 
FEATURES & BENEFITS
Thin Profile
Low Attenuation & Return Loss
Precision 75Ω Impedance
4.5GHz Bandwidth for HDTV (VDM230)
High Velocity of Propagation
Stranded or Solid Conductor
Gas-injected Foam Polyethylene Dielectric
Full Copper Braid & Foil Shield
100% Sweep Tested
Low Weight
   
APPLICATIONS
High Definition Serial Digital Video (VDM230)
Standard Definition Serial Digital Video
Digital Audio (AES3id or SPDIF)
High Resolution Analog Video
Ideal for Remote Broadcast Interconnect
 
         

 Mechanical Specifications
  Part # # of
Cond. 		Nominal
OD 		Conductor Insulation
(type, OD)		 Shield Jacket
Type 		Jacket
Colors 		UL
Type		 Approx.
Weight
  VDM230 1 .164" 23 AWG
Solid BC		 Gas-injected
Foam PE, .100"		 95% TC Braid,
100% Foil		 PVC Black, Brown, Red,
Orange, Yellow, Green,
Blue, Violet, Grey, White		 CMR 18 lbs/Mft
  Miniature HD/SDI Coax: 23 AWG Solid
  VDM250 1 .154" 25 AWG
(7x33)
Stranded BC		 Gas-injected
Foam PE, .099"		 95% TC Braid,
100% Foil		 PVC Black CMR 14 lbs/Mft
  Miniature SDI Coax: 25 AWG Stranded
  VDM250D 2 .154" x .315" 25 AWG
(7x33)
Stranded BC		 Gas-injected
Foam PE, .099"		 95% TC Braid,
100% Foil		 Flexible
Matte PVC 		Black ----- 31 lbs/Mft
    Miniature SDI or SVHS Coax: Dual 25 AWG Stranded

 Electrical Specifications
  Part # Imped.  Return Loss
(100kHz-1GHz),
(1GHz-4.5GHz)
Capacit.  Cond. DCR
per Mft/
Shield DCR
per Mft		 Vel.
of
Prop.
Attenuation (dB per 100ft)
1
MHz
3.6
MHz
10
MHz
71.5
MHz
135
MHz
270
MHz
360
MHz
720
MHz
1
GHz
1.5
GHz
2.25
GHz
3
GHz
4.5
GHz
  VDM230    75 Ω 
(+/-2)		 >23dB, >21dB 16.5 pF/ft 20.3 Ω/
2.7 Ω		 82%
0.38
0.78
1.19
3.01
3.80
5.40
6.18
9.30
10.47
12.97
16.00
18.48
22.79
  VDM250    75 Ω
(+/-3)		 >21dB, ---- 16.5 pF/ft 30.0 Ω/
4.8 Ω		 82%
0.47
0.91
1.43
3.45
4.61
6.46
7.48
10.80
12.80
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  VDM250D    75 Ω
(+/-3)		 >21dB, ---- 16.5 pF/ft 30.0 Ω/
4.8 Ω		 82%
0.47
0.91
1.43
3.45
4.61
6.46
7.48
10.80
12.80
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