We have collected the most relevant information on Ic-751a Audio Response. Open the URLs, which are collected below, and you will find all the info you are interested in.
IC-751 & IC-751A - QSL.net
https://www.qsl.net/icom/oldicomfaq/ic-751_51a.html
No RX audio in any mode except FM. No TX. Unit is not unlocked. Probable Cause: PBT oscillator is not running. Cure: Verify absence of 9.4665 signal at W86 on main unit in 751A, or W134 in the IC-751. Replace faulty X7 on main unit in IC-751A, or X5 in the IC-751.
Icom IC-751A - G4FUI
http://g4fui.net/ic-751_bad_cap_fix.html
My 751/751A is experiencing a drastic change in audio frequency response between USB and LSB., i.e. USB audio has too much bass while LSB audio has too much treble. TX frequency response is also poor. Resolution There is a misadjustment of the BFO or PBT oscillator, or a faulty crystal filter FL-30 (or FL-80 in 751A) on the main unit. To fix:
eHam.net
https://www.eham.net/reviews/view-product?id=303
One day I heard a guy on 40m with really nice audio. He was using an IC-751A. I did my research and checked reviews (eHam.net). To make a long story short I bought an IC-751A off of eBay from a Goodwill store 2 miles from my office. I paid less than $350 for the radio.
ICOM 751a Problem - Red Wave Radio
http://www.redwaveradio.com/2_2f86c06c591e6389_1.htm
unit in IC-751A, or X5 in the IC-751. Symptom: Frequency instability in USB mode. Probable Cause: Bad trimmer capacitor in BFO section on main unit. Cure: Replace plastic trimmer capacitor with a 30pf ceramic version and realign. Symptom: Drastic change in audio frequency response between USB and LSB., i.e. USB audio has too much bass while LSB
Icom 751A, Icom IC-751A Amateur Transceiver - Universal Radio
https://www.universal-radio.com/catalog/hamhf/751A.html
The Icom IC-751Ais an advanced transceiver covering 160 to 10 meters. It features a high performance 100 kHz to 30 MHz general coverage receiverbuilt in. Output is 10 to 100 watts SSB/CW/RTTY/FM modes (10 to 40 watts AM).
ICOM IC-751A and Kenwood TS-440S/AT - QRZ Forums
https://forums.qrz.com/index.php?threads/icom-ic-751a-and-kenwood-ts-440s-at.81554/
The IC-751A has two settings (narrow/wide) and a variable threshold level. It can eliminate power-line buzz in some but not all cases. It has to be backed off in the presence of strong signals. Advantage: 751A. Audio quality: The TS-440 sounds thin, it has practically no bass and there's no tone control.
Modifications to the IC-751A for the Digital Modes ...
https://squashpractice.com/2017/03/06/modifications-to-the-ic-751a-for-the-digital-modes/
The IC-751A doesn’t have much in the way of low voltage supplies, and the heater current can be up to almost 1 A during warm up, so I looked for a suitable regulator. The solution was the CUI P78A03-1000, a three pin switching regulator with 3.3V out and 90% efficiency for $4. Click on the figures below to see the modification I made.
RigPix Database - Icom - IC-751A
https://www.rigpix.com/icom/ic751a.htm
IC-2KL IC-EX310 IC-EX314 IC-HP1 IC-PS15 IC-PS30 IC-PS35 IC-SP3 RC-10 SM-8 SM-10 UT-30 Automatic antenna tuner High stability crystal unit (±0.5 ppm) 500 Hz CW narrow filter (IF: 9 MHz) 6 KHz AM filter (IF: 9 MHz) 500 Hz CW narrow filter (IF: 455 KHz) 250 Hz CW narrow filter (IF: 455 KHz) 250 Hz CW narrow filter (IF: 9 MHz) 2.8 KHz SSB wide ...
IC-751A | Instruction Manual / Guides | Support | Icom Inc.
https://www.icomjapan.com/support/manual/2869/
IC-751A: Document: Instruction Manual Note: File size: 5.80MB: About this Download Service. Icom Inc. would like to advise User's of the following regarding this download service for User Manuals and Service Manuals. If you agree to the following, …
eHam.net
https://www.eham.net/reviews/view-product?id=303&page=6&per-page=10
The IC 751A in my shack is the third one I've had. I just keep coming back to the ease of use, dependability, and silky-smooth sounding receive audio. Although I've never compared it with today's top-of-the-line rigs, I like the receive audio better than my …
Now you know Ic-751a Audio Response
Now that you know Ic-751a Audio Response, we suggest that you familiarize yourself with information on similar questions.
