Wanted: UV380/390 , DM-1701/RT-84 power calibration testers

VK3KYY
Posts: 7590
Joined: Sat Nov 16, 2019 3:25 am
Location: Melbourne, Australia

Re: Wanted: UV380/390 , DM-1701/RT-84 power calibration testers

Post by VK3KYY » Sat Mar 09, 2024 10:10 pm

SA0BUX wrote:
Sat Mar 09, 2024 3:22 pm
VK3KYY wrote:
Thu Mar 07, 2024 6:14 am
SA0BUX wrote:
Wed Mar 06, 2024 11:10 pm
The battery was fully charged on the DM-1701, but I will test some RT3S too for comparison.
Thanks

My DM1701 seems to have much lower output power than my RT3S.

The DM1701 only manages just over 5W, unlike the RT3S which can produce 8W+ on 2m!

I think the GD77 can produce around 7W on 2m, from what I can remember of the tests I did several years ago
What device do you use when measuring power?

I'm redoing some measurements with my "RF Power Meter V5" which I think could be rather accurate.
Eliminated cables too by using two 30 dB power attenuators in series and using only some SMA-N converters.
I only have a Redot SW-1015A, this meter has been supersed by the SureCom SW-102 which I now have on order
The Redot seems relatively accurate on 2m. I've compared it with some other meters on 2m and it read the same as they do.
Currenly don't know if my Redot meter is at all accurate on 70cm, because I don't have anything to compare it with.

The SW-102 is supposed to have separate calibration for 70cm and 2m, because it has a built in frequency counter, which the Redot 1015A doesn't seem to have.

Post Reply