Re: [drakelist] Dumbish Question
Hi, most importantly the receiver, R4C, had the provisions for additional filter options both AM, SSB and CW. The TR4C later came out with the TR4CW which had a narrow CW filter built in. This transeiver was mainly a SSB unit until then. Another plus of the R4C was variable pass band tuning (PSB) as well as a notch filter. Neither of these were in the TR4C or any later versions. Both the R4C and TR4C had fairly hot receivers. Many hold that the R4C did not reach its potential until it was "filtered up", had the optional noise blanker installed, and had the later "sherwood" mods performed. Most active hams prefer the R4B (B'line) where the package is pretty well complete. The R4C's are, however, newer units and did not have the copper plated chassis. Many hams today believe the R4C with sherwood mods is still competitive with ANY modern receiver/transciever. See the sherwood site for more information Output differed from the two units. The T4xc had two output tubes for nominally 120w output. The Tr4c had three output tubes for nominally 180w output on the lower bands. Add to this the comments from K9SQG and you pretty well have it. Also, simply google up Drake radios and you'll find a wealth of information. David Wd9cmd - Original Message - From: [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Saturday, March 22, 2008 8:49 AM Subject: Re: [drakelist] Dumbish Question [EMAIL PROTECTED] made an utterance to the drakelist gang -- The C-line allowed split operation and to do this with the TR-7 required the external RV-4 VFO or the later TR-4C with RIT. C-line enabled cross band operation. C-line operated 160 meters. C-line could be used to listen on shortwave, used on WARC bands, etc. R4C could be used for shortwave listening without having to power up the transmitter. TR-4C had more output in case somebody wanted to avoid using a linear. etc. etc. **Create a Home Theater Like the Pros. Watch the video on AOL Home. (http://home.aol.com/diy/home-improvement-eric-stromer?video=15?ncid=aolhom000301)-- Submissions: [EMAIL PROTECTED] Unsubscribe: [EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost: [EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net --
Re: [drakelist] Dumbish Question
The "separates" also have: Selectable IF filters (if you populate the optional positions) Notch filter 3 selectable AGC time constants (and "Off") The "potential" of a superior receiver (according to the modifications and measurements from Rob Sherwood - and others) Dave VE6DRW - Original Message - From: [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Saturday, March 22, 2008 6:49 AM Subject: Re: [drakelist] Dumbish Question [EMAIL PROTECTED] made an utterance to the drakelist gang -- The C-line allowed split operation and to do this with the TR-7 required the external RV-4 VFO or the later TR-4C with RIT. C-line enabled cross band operation. C-line operated 160 meters. C-line could be used to listen on shortwave, used on WARC bands, etc. R4C could be used for shortwave listening without having to power up the transmitter. TR-4C had more output in case somebody wanted to avoid using a linear. etc. etc. **Create a Home Theater Like the Pros. Watch the video on AOL Home. (http://home.aol.com/diy/home-improvement-eric-stromer?video=15?ncid=aolhom000301)-- Submissions: [EMAIL PROTECTED] Unsubscribe: [EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost: [EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net --
Re: [drakelist] Dumbish Question
[EMAIL PROTECTED] made an utterance to the drakelist gang -- The C-line allowed split operation and to do this with the TR-7 required the external RV-4 VFO or the later TR-4C with RIT. C-line enabled cross band operation. C-line operated 160 meters. C-line could be used to listen on shortwave, used on WARC bands, etc. R4C could be used for shortwave listening without having to power up the transmitter. TR-4C had more output in case somebody wanted to avoid using a linear. etc. etc. **Create a Home Theater Like the Pros. Watch the video on AOL Home. (http://home.aol.com/diy/home-improvement-eric-stromer?video=15?ncid=aolhom000301) -- Submissions:[EMAIL PROTECTED] Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net --
[drakelist] Dumbish Question
Hi all, Sorry for such a basic question, but I've been wondering why Drake made both a transceiver (TR-4C) and a receiver/transmitter pair (R-4C + T-4XC) in the same line. Did the separate receiver/transmitter pair offer better performance than the transceiver in some way? I would appreciate a little background on why they offered all three units. Thanks... 73, Dave / K8JDC (who is talking about C-line equipment but really has designs on adding a TR-7 to his shack some day)
