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PRODUCTS / PRO-AUDIO, VIDEO & DATA CABLE / VIDEO CABLE / Miniature HDTV/SDI Coax
 
     
  Miniature HDTV/SDI Coax  
         
   
  The Gepco® Brand miniature coax series features exceptionally low attenuation for its type while maintaining a reduced size and weight. All utilize a pure-copper center conductor, low-loss foam dielectric and broadband foil and braid shielding. VDM230 features the same gasinjected dielectric found in the HD coax series making it ideal for standard-definition digital video, AES3id digital audio or highdefinition digital video interconnect within mobile production trucks. VDM250 and VDM250D are recommended for short distance, low bit-rate digital, analog video, or SVHS applications. The VDM230TS is recommended for plenum installation.
 
FEATURES & BENEFITS
Thin Profile
Low Attenuation & Return Loss
Precision 75Ω Impedance
4.5GHz Bandwidth for HDTV (VDM230 & VDM230TS)
High Velocity of Propagation
Stranded or Solid Conductor
Gas-Injected Foam 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
 
      TactiCel  

 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
  VDM230TS 1 .164" 23 AWG
Solid BC
Gas-injected
Foam PE, .099"
95% TC Braid,
100% Foil
Plenum
PVC
Black, White CMP 22 lbs/Mft
    Miniature HD/SDI Coax: 23 AWG Solid Plenum
  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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