Search found 9 matches
- Sun Jun 10, 2018 1:38 am
- Forum: Modification Maddness
- Topic: Icom 756: Increasing the TX and RX Audio Bandwidth
- Replies: 20
- Views: 71012
Hi Gary, I didn't keep notes on that, but by looking at the schematic of the radio I should have replaced R581, R518 and R519 by 10K, R526 by 1K and C520 by 2.2nF. I remember that I had to remove the board from the radio as the components were on the bottom side. All these on the main unit. By the w...
- Sun Jul 09, 2017 11:48 am
- Forum: Modification Maddness
- Topic: Icom 756: Increasing the TX and RX Audio Bandwidth
- Replies: 20
- Views: 71012
- Mon May 11, 2015 6:06 am
- Forum: Modification Maddness
- Topic: Icom 756: Increasing the TX and RX Audio Bandwidth
- Replies: 20
- Views: 71012
- Mon May 11, 2015 1:34 am
- Forum: Modification Maddness
- Topic: Icom 756: Increasing the TX and RX Audio Bandwidth
- Replies: 20
- Views: 71012
- Sat Mar 07, 2015 1:16 am
- Forum: Modification Maddness
- Topic: Icom 756: Increasing the TX and RX Audio Bandwidth
- Replies: 20
- Views: 71012
- Wed Mar 04, 2015 4:19 pm
- Forum: Modification Maddness
- Topic: Icom 756: Increasing the TX and RX Audio Bandwidth
- Replies: 20
- Views: 71012
Hello Bob, Just a tip on the ACC1 audio: The rig, as it is, will give you a low audio fidelity through this connector, as it is intended for digital-like signals only. On the MAIN UNIT board there is an opamp (IC503b) which works near saturation and also has some high-pass filtering on it. I've chan...
- Mon Nov 18, 2013 9:22 am
- Forum: Modification Maddness
- Topic: Icom 756: Increasing the TX and RX Audio Bandwidth
- Replies: 20
- Views: 71012
Hi K9JPD, I'll be glad to help, the mod takes only a few minutes if you know what components to change, but I'm afraid it will be way too overkill to send the board to Spain and back to USA just to change a few passives. I'm pretty sure you can find some local experienced technician that, after view...
- Wed Aug 07, 2013 3:55 am
- Forum: Modification Maddness
- Topic: Icom 756: Increasing the TX and RX Audio Bandwidth
- Replies: 20
- Views: 71012
Now I can, so here it is!
http://wz5q.net/docs/ea3hru_ic756_rx_an ... h_mods.pdf
Comments and suggestions are welcome !!!
http://wz5q.net/docs/ea3hru_ic756_rx_an ... h_mods.pdf
Comments and suggestions are welcome !!!
- Wed Aug 07, 2013 3:53 am
- Forum: Modification Maddness
- Topic: Icom 756: Increasing the TX and RX Audio Bandwidth
- Replies: 20
- Views: 71012
Icom 756: Increasing the TX and RX Audio Bandwidth
Hello everybody! In case someone wants to increase the audio bandwidth on the Icom 756 (non-Pro), I've written a short report explaining the changes I've made to my rig. I would post the link here, but the system does not allow me to do that yet. Will do as soon as I can post url's! Anyway, with thi...