Yaesu FTM 300D Programming and Features and an audio check 

Built that one years ago.

Yes very easy compared to Chinese rigs

That was an expensive one. About 350.00

@@12voltvids ouch!

@@gordonblank6845 I built a cheap 49 Nixie clock too. This one was a little more.

No it won't work on DMR or DStar. You need a DMR or DStar radio respectively for those repeaters. C4 is a yaesu only system.

@@12voltvids ok thanks. so c4 and fusion are the same?

​@seandrake7534 yes fusion is the trade name, c4fm is the modulation standard. Just like tdma, cdma, odfm, fdm, qam, psk, fsk, Hispanic ect. DMR stands for digital mobile radio and was a protocol developed by Motorola, but it is also open source so anyone can make the radios. Dstar is icom only and fusion is yaesu only. Because c4fm is a modulation format I believe others can make the radios they just can't use the name fusion. The holy grail is if other companies back the standard and license the technology from yaesu. The advantage of fusion is you don't have to know much technical background unlike DMR which you have to set id and slot and other parameters. With fusion you just tune the frequency and hit the ptt.

It's an astron 35 amp. The voltage drop is the power wire. Not quite heavy enough for 50 watt radio. It's the same called that powered the old rig which was only 25 watts and is 16ga. Should be probably 12ga for the amps this draws at full power. The PSU powers 3 radios

All but the very oldest radios will operate in duplex mode. On VHS the transmit frequency is either 600khz below or above the receive frequency. On the 220 band it is 1.6mhz below the receive frequency and on the 440 band generally 5.0 mhz above, but it can also be 5.0 down. Cross band repeat uses a vhf and uhf frequency

No just FM and C4FM fusion.

Hold GM + F + Disp while turning on the power turns on x band repeat. Do the same to turn it off. FM only no fusion.

Yes i have listened to the air band. I don't use it for aprs. If it was mobile i probably would.

Have you found help yet? Is your squelch open on b band? If squelch is open or you're receiving any kind of signal it will say tx prohibit when you try to send an aprs beacon or message.

@@user-lp3cf5yn5b yes Thanx. It was a GMRS frequency.

It's not just in my house it's everywhere. LED lights with switching power supplies, compact fluorescence, switching power supply Wall warts. Plasma televisions. And that's just in my house. My neighbors on both sides both have big plasma TVs that they still watch. It's always been bad but it got a lot worse in the early 2000s when all the plasma TVs first started appearing. I have tried shutting off the power and powering my radio with a battery and it's almost as bad. Just too many electrical things in my neighborhood causing noise. I have set it on more than one occasion when I step out in the morning to go to work "I love the smell of marijuana growing in the morning" referring to the stench of all my pothead neighbors growing their own. Lots of folks growing weed with their big powerful lights which generate lots of noise.

Not really many have moved to digital modes and unless you have digital equipment you won't hear them. There are 3 different digital systems. DMR, Dstar and Fusion. Each requires a different radio.

​@@12voltvidsAround here, if you work second shift, nobody wants to talk on your off hours.

This one is locked down to the ham bands. Boafeng will go on gmrs and frs channels, not legally though.

Never done aprs myself.

@@12voltvids I'm fussing with APRS myself today on the radio. There is activity here in Las Vegas, but not sure anyone is communicating with this or not.

​@@12voltvidsyou wanna see some excitement, try using it for ISS APRS . I will say this rig is a pain in the ass for composing messages in reply to a message when you only have maybe at most a good 9 minute window to get that reply composed and sent. At least it is for me. They should have made it where you can compose messages with the dtmf pad like old school SMS.

@@user-lp3cf5yn5b I rarely use it actually. Don't know why I even bought it.

Most welcome

If you just want to listen to VHF/UHF a Baofeng handheld with an external antenna (can be as simple as a magmount for a car) can be had for pennies nowadays.

Ok thank you

Biafeng uv5

Why not.

When is it too low?

@@ARC928 when it shuts off.

Wouldn't you get more power if the power supply could keep it up at 14 volt?

@@ARC928 i never run full power anyway. Not needed. The power supply is 30 years old and has 3 radios running. Power supply is more than capable the power lead on the other hand is not quite heavy enough. It actually gets warm to the touch on full power, so ya I fully expect a drop of a couple volts. Power lead is 14ga and it would be 10.

So buy one. You have lots of bucks working where you do.

Yes.

@@12voltvids Thanks