How many fars on the Maljamar, NM repeater?

[WSFE293]

I know, another newbie question about fars...but I'm looking for some input from others with a some experience.

I was playing around on the repeater map and found the Maljamar, NM repeater says estimated range of 100 miles. What equipment would be needed on a mobile car setup to get to the repeater from 100 miles away? Would a 25W radio be enough power or would a 50W radio be needed? What about an antenna with gain?

I realize that this probably depends on many things but hoping to hear about if this is realistically possible. I looked at the RF Line of Sight website and assumed the repeater is 100m high (no idea if this is accurate) and it says there is clear line of sight to Carlsbad and Roswell.

Has anyone here used this repeater before?

The reason I'm asking is because I'm looking into getting a mobile setup but just haven't pulled the trigger yet. The posting from a few weeks about about mobile setup is really useful.

 

Thanks, hope you all have a good Fourth of July.

 

[OffRoaderX]

You spelt farz wrong.

[SteveShannon]

Just now, WSFE293 said:

I know, another newbie question about fars...but I'm looking for some input from others with a some experience.

I was playing around on the repeater map and found the Maljamar, NM repeater says estimated range of 100 miles. What equipment would be needed on a mobile car setup to get to the repeater from 100 miles away? Would a 25W radio be enough power or would a 50W radio be needed? What about an antenna with gain?

I realize that this probably depends on many things but hoping to hear about if this is realistically possible. I looked at the RF Line of Sight website and assumed the repeater is 100m high (no idea if this is accurate) and it says there is clear line of sight to Carlsbad and Roswell.

Has anyone here used this repeater before?

The reason I'm asking is because I'm looking into getting a mobile setup but just haven't pulled the trigger yet. The posting from a few weeks about about mobile setup is really useful.

 

Thanks, hope you all have a good Fourth of July.

 

The output power isn’t meaningless, but it has much less of an effect than the antenna height and gain. A 20 watt radio can easily transmit 100 miles if there are no obstructions, but obstructions are common.  A fifty watt radio cannot overcome obstructions, but it can power its way through vegetation which might attenuate the signal of a less powerful radio until it cannot be detected. There are lots of threads which discuss which antennas work well and how and where to mount them. And attenuation affects signals in both directions.

So, more important than the output power is the cable, the antenna gain, the antenna mounting position, and the antenna height. Personally I use a db20g radio with a Midland MXTA26 antenna on the center of my steel roof using a magnetic mount from Midland.

[AdmiralCochrane]

Both likely to work, the 50 watt radio will sound louder to those receiving your signal.

[nokones]

100 miles is nothing. There is one of the Queen's favorite viewers in California that can do 200 miles with ease.

Seriously, the average terrain elevation in the area of the Maljamar is somewhat flat and approximately 4,000 AMSL and the Maljamar repeater site appears to be sitting at the 4,121 ft level. With the curvature of this great planet and the fact that the propagation of the UHF signal essentially requires a " Line-of -Sight", I highly doubt that the area of coverage footprint is anywhere near a hundred miles.

You would essentially, need a site approx. 10-13K in elevation above the average elevation of 4K to have the range of 100 miles with an UHF signal. Even a microwave control path, peak to peak would have difficulties in making it that distance because of the earth curvature.

In this case, the 100 mile range of this site is very arbitrary.