Was SDR Ver 3 updated with the DDUtil functionality to set the drive power per band when using an amp?
Reggie
N3OP
- 97 Posts
- 8 Reply Likes
Posted 10 months ago
- 126 Posts
- 22 Reply Likes
You can do that now if you're using an SPE Expert Amp. I'm not sure about any other amps doing it. I got it working here after reading the forum post by N2RJ:
You can use DDUtil, that is one option.
You can also use the USB cables and have the amp control drive power. I prefer this method because it supports the two inputs for SO2R. DDUtil will only send band data for the current transmit slice so you're really limited to only one output from the radio. I don't know if this has changed but last I checked this is how it was.
Basically you get an FTDI adapter or make a 9 pin to 15 pin cable according to the SPE manual. Get two if you're using the two inputs.
Use only the Relay line. Do not use ALC.
Configure your USB ports to CAT mode, and set it to follow the antenna port.
Then set the amp to FLEX mode.
Adjust drive power using the arrow keys on the front of the amp. You must set it once per band and once per power level (Mid/Max/Low). The front of the amp will display "PC=XX" which is the drive power level. Adjust using a dummy load to set desired power. I believe 1500w for Max, 1kw for Mid, and 500W for low. This is a one time thing. When you change bands, the amp will automatically set power in SmartSDR.
HTH
Ria - N2RJ, Elmer
- 2276 Posts
- 914 Reply Likes
You can use DDUtil, that is one option.
You can also use the USB cables and have the amp control drive power. I prefer this method because it supports the two inputs for SO2R. DDUtil will only send band data for the current transmit slice so you're really limited to only one output from the radio. I don't know if this has changed but last I checked this is how it was.
Basically you get an FTDI adapter or make a 9 pin to 15 pin cable according to the SPE manual. Get two if you're using the two inputs.
Use only the Relay line. Do not use ALC.
Configure your USB ports to CAT mode, and set it to follow the antenna port.
Then set the amp to FLEX mode.
Adjust drive power using the arrow keys on the front of the amp. You must set it once per band and once per power level (Mid/Max/Low). The front of the amp will display "PC=XX" which is the drive power level. Adjust using a dummy load to set desired power. I believe 1500w for Max, 1kw for Mid, and 500W for low. This is a one time thing. When you change bands, the amp will automatically set power in SmartSDR.
HTH
- 67 Posts
- 10 Reply Likes
- 249 Posts
- 42 Reply Likes
- 97 Posts
- 8 Reply Likes
Is anyone doing this with the Elecraft KPA500 amp?
Reggie
Reggie
- 4067 Posts
- 982 Reply Likes
I have a close friend with a KPA1500 connected to his 6500 with a lan cable only. It talks to the amp and everything is controled from the Flex,,it works perfect. No DDUtil
Related Categories
-
FLEX-6700 Signature Series SDR
- 3133 Conversations
- 644 Followers
-
FLEX-6500 Signature Series SDR
- 3677 Conversations
- 953 Followers
-
FLEX-6700R Signature Series SDR
- 891 Conversations
- 150 Followers
-
FLEX-6300 Signature Series SDR
- 3035 Conversations
- 868 Followers
-
FLEX-6400 Signature Series SDR
- 1136 Conversations
- 178 Followers
-
FLEX-6400M Signature Series SDR
- 1036 Conversations
- 143 Followers
-
FLEX-6600 Signature Series SDR
- 1200 Conversations
- 170 Followers
-
FLEX-6600M Signature Series SDR
- 1197 Conversations
- 157 Followers