Have you tried programming both radios with Frequency = 151.82000, Tone Mode = (none), Duplex = (none), Mode = FM, Power = High? Do this on both radios and see if you can communicate both ways using the radios programmed this way. This step would prove that the radios are capable of communicating with each other.
If that works, then program both radios the same except set Tone Mode = Tone and Tone = 100.0. Run your test again and make sure both radios can communicate with each other.
If that works, then program both radios the same except set Tone Mode = TSQL, Tone = 100.0, and ToneSql = 100.0. Run your test again and make sure both radios can communicate with each other.
If that works, then program both radios the same except set Tone Mode = DTCS, DTCS Code = 132, DTCS Rx Code = 132, and DTCS Pol = NN.
Then report back to us with a capture of your programming screen.