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Questions tagged [mobile]

Mobile operations (car, motorcycle, boat or other vehicle)

0 votes
0 answers
40 views

Motorola GM340 flash of LEDs but then no boot up

Recently I inherited 2x Motorola GM340 (no LCD screen version) Vhf mobile radios, The one radio works and seems to have been setup to act as a repeater and I am assuming the other was too. However ...
Jonas's user avatar
  • 101
0 votes
1 answer
44 views

Run antenna coax through hatchback of a Nissan Rogue

I have a 2014 Nissan Rogue and am trying to figure out best place to run my coax from a mag-mount antenna. Seems not many do this anymore and cannot find answer in search. Do not want to run it ...
Robert Gority Sr's user avatar
3 votes
2 answers
335 views

Rfi in truck with HF transceiver when running

I have an Icom IC-707 in my truck, a 2003 F150, with a stainless 102 inch whip mag mount on the roof. It has a a coil pack 6 cylinder. Without it running I have no problem; as soon as I start the ...
Plumber90's user avatar
1 vote
2 answers
59 views

What are the considerations re installing an ID-4100 in a DIN slot in the dash?

I'm looking into installing my ID-4100a into the radio slot in my car. The radio and cassette player (lol yes really) are non-functional so I actually have 2 slots to play with. I haven't come across ...
webmarc's user avatar
  • 4,363
1 vote
1 answer
77 views

How to test real-world performance of a wifi and LTE IoT device

We're developing a product that communicates over wifi and LTE. I'm putting together a test plan for determining that these work, but also what sort of conditions we can expect them to work in. The ...
askvictor's user avatar
  • 191
2 votes
3 answers
672 views

Monopole antenna with no ground connection

I have a SDR device and have a question about using a monopole antenna with them, but the question could be applied to any device which uses an antenna. SDR comes prepacked with a monopole antenna ...
Dan's user avatar
  • 311
2 votes
1 answer
175 views

Converting an FM Antenna to a 2m/70cm Transmitting Antenna

I have a 2006 Honda Goldwing 1800 with an extra FM antenna that I would like to convert to a 2m (or 2m/70cm) transmitting antenna. Changing the connector to a PL-259 seems to be the easy part and I ...
Duane's user avatar
  • 21
0 votes
1 answer
133 views

How to create FM Radio Mesh

What (devices transmitters, receivers and transceiver) do i need to create a fm radio mesh, instead of using a single transmitter with big antenna, i want to build fm transceiver mesh radio to cover ...
Hither Joe's user avatar
5 votes
4 answers
482 views

UHF 70cm unlicensed use

We are farmers with (edit) 25-40w radios mostly old Kenwoods and Motorolas in all of our tractors and vehicles. I'm not exactly sure what frequency we have but the man who programmed them set them up ...
Logan's user avatar
  • 51
2 votes
2 answers
894 views

Do I need an antenna tuner for new mobile antenna

I am looking to buy my first mobile antenna, for use with a 2m/70cm HT in the car. The HT needs 50 Ω impedence. I was looking at this antenna, but another ham told me that I need 1/4 wave or 5/8 wave ...
TSG's user avatar
  • 259
3 votes
1 answer
74 views

Measuring effectiveness of vehicle bonding

Is there any objective way to measure the effectiveness of your bonding in a mobile HF setup? Or determining when you have "adequate" bonding? I have a hard time with just throwing straps on ...
Brad Mace's user avatar
  • 421
1 vote
3 answers
218 views

QRP CW on HF using FT-817ND - filter/dsp recommended?

I'm just getting into amateur radio, so just starting to gather the things I want/need. I'm only really interested in CW, and almost exclusively on HF. I'm looking into a mobile/portable setup which ...
upasaka's user avatar
  • 121
2 votes
1 answer
100 views

Looking for specifications for Wilson Electronics WAU 420 amplifier

Hey there helpful people I'm trying to track down some specifications on a Wilson Electronics WAU 420. I have no idea on its exact age but guessing its from the late 90's. It's likely UHF band and ...
Rowan Hawkins's user avatar
1 vote
2 answers
135 views

Sealing connection between mobile antenna and mount

I've got a brass mount installed on my car which has a 3/8-24 socket. All the antennas I'm looking at seem to have stainless steel connectors. Is packing the connection between antenna and mount with ...
Brad Mace's user avatar
  • 421
1 vote
3 answers
362 views

Ignition Static on 2m mobile but not 70cm

I have an ICOM 2730a 2m/440 mobile rig in a 2015 Ram 1500. Tx and Rx with truck not running is excellent. With engine running I hear static popping, but only on 2 meters. If I Tx I can hear the ...
PappyD's user avatar
  • 11

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