Tesla Model 3 + HAM Radio antenna v2

After few weeks of testing original Diamond configurationNR770HNMO Dualband Mobile Antenna is too tall compared to Tesla Model 3 and I ordered shorter version: Diamond NR72BNMO Dualband Mobile Antenna as you can see from photos, it’s way better from aerodynamic point of view

HAM Radio kit and Tesla Model 3 antenna

After few days of planning, I’m switching to new configuration for car and home.

Advantages of new configuration are:

  • Antenna in car is smaller (rom 38.2″ to 13.8″) and still support up to 100W output
  • New car antenna is compatible with NMO connector already in car
  • Mag Mount is heavy to keep existing antenna stable with NMO connector and it can be used home, carry around as external antenna for HAM radio Go-Kit or stored in trunk of car of need more coverage.

Here is final setup:

Tesla Model 3

HAM Radio Go-Kit

Tesla Model 3 + HAM Radio antenna

IMG_20181125_145549

DIAMOND K400CNMO Trunk/Hatchback Mount

NR770HNMO Dualband Mobile Antenna

  • Bands: 2m/70cm
  • Gain dBi: 3.0/5.5
  • Watts: 200
  • Height: 38.2″
  • Mount: NMO
  • Element Phasing: 1-1/2 Lambda, 2-5/8 Lambda

Antenna is installed on right side of car connect to trunk edge via K400.

K400 0978dia2

Cable is routed as follow:

  1. Under the moving part of trunk toward front of car (photo #1)
  2. U turn back down to bottom of fixed part around the rubber insulation used to protect wiring in the truck (photo #2 and #3)
  3. Inside trunk and stick on top of it to avoid any hanging (photo #4 and #5)
  4. Move down following the back of right seat and around the seating part (photo #6, #7 and #8)
  5. Under all weather floor mat to the area between central console and front passenger seat (photo #9 and #10)

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If you want to route the cable completely hidden, you will need a Diamond C110 extension cord and follow this video on how to tear down your Model 3:

HAM Setup – Car + Radio configurations

Car configuration

20160429_165437

DIAMOND K400CNMO Trunk/Hatchback Mount

NR770HNMO Dualband Mobile Antenna

  • Bands: 2m/70cm
  • Gain dBi: 3.0/5.5
  • Watts: 200
  • Height: 38.2″
  • Mount: NMO
  • Element Phasing: 1-1/2 Lambda, 2-5/8 Lambda

Radio Configuration

BaoFeng BF-F8HP.png

 

BaoFeng BF-F8HP 8-Watt Dual Band Two-Way Radio (136-174MHz VHF & 400-520MHz UHF)

  • Model: New BAOFENG BF-F8HP
  • Battery: 2000mAh, 7.4v, Li-ion
  • Frequency Range:
    • 65-108MHz (FM Receive only)
    • 136-174MHz and 400-520MHz (TX/RX)
  • Mode of operation: Simple or semi-duplex
  • Transmitter Output power: 8W/5W / 1W (Max 8W)
  • Modulation Mode: 16k F3E / 11k F3E
  • Maximum deviation: <5kHz(Wide) / <2.5kHz(Narrow)
  • CTCSS/DCS deviation: 0.5+/-0.1kHz(Wide) / 0.3+/-0.1kHz(Narrow)
  • Antenna: 7″ High Gain Dual Band
  • Antenna Connector: SMA-Male
  • Antenna Impedance: 50Ω

Nagoya NA-771 15.6-Inch Whip VHF/UHF (144/430Mhz) Antenna

  • Frequency: 144/430MHz
  • Gain: 2.15dBi
  • Max power: 10 Watts
  • VSWR : Less 1.5:1
  • Impedance: 50 OHM
  • Connector: SMA-Female
  • Length: 39.6 cm (~15.6 inches)
  • Impedance : 50 ohms

Connector Adapter

 

Compare SMA vs UHF connector

swr_1000