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Mobile antenna to improve communication which type of mobile antenna is require? in conventional mode communication repeater unite is required to cover the 40km distance.

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You can use a Yagui antena, but will depend on the radio that can use this kind of antenna

Posted on Jan 23, 2009

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On this model #75-509 what is maximum distance for comunicating


I think that is a 1 watt radio. In optimal conditons you should be able to get a 3/4 mile solid, maybe a bit more. In a not so great situation, such as woods or buildings in the way about 1/2 mile or a little less.

Feb 07, 2016 | Two-Way Radios

1 Answer

FRS 2Way Radio 14 Channel Conair Expedition MODEL FRS200SLV MANUAL


Here is some information that might help.
Range can vary due to topographical and atmospheric conditions. Voice transmissions on some channels are not permitted by law.
Use in DUPLEX mode, Repeater stations can re-transmit your signal over a wider area giving you extended range depending on the location, height and availability of the local repeater station.

For information on the locations of repeater sites in your area visit the manufactures website or look-up UHF channels and frequencies for your area.
Note: some channels / Frequency's are to be Avoided.
UHF Repeater operation is used when long distance communication is required, unless specifically needed use of the repeater channels is to be avoided. Some channels and emergency channels, some are calling channels for establishing communication and some are customary road vehicle channels.
You will need to look these channels up for your Area.

Other stuff on this subject on safety and safe operation.
Electromagnetic Interference/Compatibility
Nearly every electronic device is susceptible to electromagnetic interference (EMI). To avoid the possibility of electromagnetic interference and/or compatibility conflicts, turn off your radio in any location where posted notices instruct you to do so such as healthcaer facilities.

Feb 06, 2014 | Two-Way Radios

1 Answer

857d does not display tunr icon when set up for atu operation


In the extended menu, double check the "tuner mode". Sometimes the 857 requires a "factory reset" (also in the extended menus) to get it working with external antenna tuners.

Aug 09, 2013 | Yaesu FT-857D HF/VHF/UHF Mobile...

2 Answers

Yaesu ftm-10e squelch problem


The FTM-10E is the european version of the dual band amateur radio capable of transmitting in the amateur VHF & UHF (144Mhz & 440Mhz ) bands, that is equal to the FTM-10R sold in the US.

Many repeaters require a predetermined sub-audible tone or signal to be sent when transmitting. If several repeaters in the area operate on the same frequency, they would all transmit at the same time unless they all have different sub-audible tones. These tones allow the user to select which repeater on the same frequency will be used. The tones are either CTCSS or DCS type. CTCSS is "continuous tone coded squelch system" and DCS is "digital coded squelch". CTCSS is expressed as a frequency in Hertz and DCS is a code expressed as a number. CTCSS is more popular, since it has been around longer. When programming or tuning the radio, you will need to provide the repeater's output frequency (and the input frequency if the shift direction and amount isn't programmed - often a 600 hertz shift either up or down depending on isn't already programmed is a default value depending on the repeater output frequency) and whether or not the repeater requires a tone. If it does require a tone (most do), you will need to know the type (CTCSS or DCS) and the value (frequency for CTCSS or code number for DCS) in order for your transmitter to open the repeater and cause it to repeat your transmission AND open the squelch on the radio's receiver so that you can hear replies to your call and other conversations. Repeater directories (both printed and online) will provide all the information needed to access a public repeater, including geographical location, input & output frequencies, squelch type and values to name a few.

If you do not have the correct CTCSS or DCS set, you will see the signal meter on the radio indicate traffic - but you will not hear anything because the radio is squelched. Check the manual page 40 for information on how to program the squelch, and page 42 describes the "shift" I mentioned above. Page 64 & 65 details the theory of squelch via CTCSS and DCS and will help you understand it better.

Basically, you have a "standard" squelch - the knob on the radio and a second squelch that is either CTCSS or DCS. Both types must be set to hear anything. Not having the CTCSS or DCS set will prevent your signal from being repeated by the repeater.

If you have more question, please add them in a comment. I hope this helps & good luck!

Jun 17, 2012 | Yaesu FTM-10R VHF/UHF Mobile Dual-Band...

1 Answer

I bought walkie talkies with 56 km radius and yet we are lucky to reach each other after approx. 1 mile,any idea why we don't get the range


You do not mention the particular model of Motorola, so this answer will be generic in nature. Some Motorola TalkAbout radios have been factory programmed with a few GMRS repeater frequencies. These channels require the use of a repeater tower, which will 'repeat' what you say over a greater distance. It is possible you have this type of radio. Check your user guide, and then set your radio to the appropriate channel for the repeater in your area.

Radio-to-radio without the use of a repeater you can expect up to 2 miles line-of-sight out of most handheld radios. This distance is reduced by obstacles such as buildings, trees, etc. inbetween the radios. It can also be reduced if you do not hold the antenna of the radio perpendicular to the ground.

Best regards.

Jan 19, 2012 | Motorola Walkie Talkies 2-Way Radio

1 Answer

I have a bc92xlt and want to know what antenna to use to get a better signal than the rubber one it came with? thankyou


The antenna which came with the radio is the appropriate antenna for the unit. It is engineered to be the proper duct length for the frequency band the radio is on. If you change to a longer antenna, you may get worse reception, as the antenna will not longer match.

To improve range, consider this rule of thumb: Height and placement of antenna determines range. Hold the radio with the antenna perpendicular to the ground (straight up) for best range. Tilting the radio to the side can reduce your range by up to 2/3s. Face the direction you are talking.

If these tips do not increase your range, you may need the assistance of a repeater. Check with your local dealer for available options in your area.

Nov 10, 2009 | Two-Way Radios

2 Answers

Programming MTS2000


You need the software it is the only way. Also you need a slow computer with DOS to clear that.

Jun 23, 2009 | Motorola HT1000, MTS2000, MTX8000/9000...

1 Answer

Interference using maxon pm100 2 way radio


Hello susannebrown. There is a problem with the base station or repeater station. If your mobiles can communicate ok, you have problem with the base, check the antenna & coax connections. #2 Swap out a mobile with the base & test operation. If you can do this & found the culprate care it to the repair shop(less cost). #3 Swap has no effect or you can't, you have a repeater problem. Sorry, call a repair shop.

Sep 08, 2008 | Two-Way Radios

1 Answer

Changing channels / instruction manual required


there is a channel selector on top of the unit just beside the antennae or the volume adjustment

May 06, 2008 | Two-Way Radios

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