| Author |
Message |
    
Assaulter
Member
Username: Assaulter
Post Number: 54
Registered: 1-2003
| | Posted on Monday, May 23, 2011 - 4:22 pm: | 
|
Which radios nowdays (or ever) have dual conversion recieve? Looking for a SSB radio with it, new or used.... also have any ever had triple conversion? |
Tech833
Moderator
Username: Tech833
Post Number: 1980
Registered: 8-2002
| | Posted on Wednesday, May 25, 2011 - 3:24 pm: |
|
I believe the Cobra 148 still has a dual conversion receiver.
Not aware of any CB radios with triple conversion. However, some ham radios do have triple conversion. Although, be aware that some radios incorporating DSP are giving up multiple conversion process in favor of the DSP power. That is good and bad. Bad because DSP cannot fix poor image rejection.
Your radio 'Mythbuster' since 1998
|
Keithinatlanta
Advanced Member
Username: Keithinatlanta
Post Number: 914
Registered: 3-2003
| | Posted on Friday, May 27, 2011 - 6:14 am: |
|
Hey guys, a little learning curve here. What is dual conversion receive? Thanks.
Keith in Atlanta
CEF 150 |
Tech833
Moderator
Username: Tech833
Post Number: 1984
Registered: 8-2002
| | Posted on Friday, May 27, 2011 - 11:29 am: |
|
How many seperate I.F. stages the receiver has. Each stage, the signal is mixed with a different I.F. frequency.
And, if none of that sinks in, just imagine that each I.F. stage performs the task of narrowing the passband and improves the rejection of unwanted off-frequency out of band signals.
Your radio 'Mythbuster' since 1998
|
