Arnie,
If you had looked at the Apache website,
https://apache-labs.com/al-products/105 ... ition.html, you would see that Apache is claiming three "improvements":
1. Rugged Aluminium Extruded chassis for excellent thermal dissipation and Rx/Tx isolation.
2. PA board improvements for higher duty cycle, 100% ICAS duty cycle supported.
3. Tx Signal generation redesigned to improve SNR at low power levels.
The first two are primarily mechanical in nature.
The third one involves the placement of a step attenuator on the PA board that receives the signal from the DAC. This way the DAC can run at nearly maximum output all the time and only be adjusted over a range of +/-1dB, while the step attenuator does the heavy lifting of adjusting the gross drive level. All prior designs require the DAC output to be adjusted over the full range of drive levels.
However, that last change had been cut in during the production of the original version of 7000DLE MKII, so there is very little functional or performance difference between the black and silver versions.
73,
Scott
P.S. moved your post because it had absolutely no business being tacked onto a thread about memory configurations.