Craig, You have to remove the DR-7 board to reach the AUX-7 board. No need to remove the front panel or mess with the bandswitch.
I also have an AUX-7 board with homebrew RTM-7 modules for 0 - 500, 500-1000, 1000-1500 and the WARC bands. Since you have the AUX-7 board, you might as well build the modules. Attached is a drawing you can use to build the modules for 0.0, 0.5, 1.0 MHz, 10, 18 & 24.5 MHz bands. Thanks to Steve Rawlings, GW4ALG for the WARC band drawing at http://www.alg.demon.co.uk/radio/tr7/mods.htm#20 With a little cutting and pasting, I added the 0 - 1.5 MHz ranges. -Tom On 11/8/05, Craig Roberts <[EMAIL PROTECTED]> wrote: > > Craig Roberts <[EMAIL PROTECTED]> made an utterance to the drakelist gang > ---------------------------------------------------------------------- > Well, I thought I had it figured out, but... > > Here's my question: what's the best way to enable reception of the LF > ranges on my TR-7 given these circumstances? -- > > I have an AUX-7 board installed with one module aboard. It's the 0 - > 500 KHz one, selectable from AUX Program switch position 1. I'd like to > leave this in place but add the 500 - 100 KHz and 1000 - 1500 KHz ranges > to switch positions 2 and 3 respectively. > > I have enough DIP headers and diodes to make my own "modules" to plug > into the AUX-7 board, but have no clue how to wire the the headers with > the diodes. I've seen a programming matrix, but find it baffling. I need > a picture, 'cuz I'm a simple fellow. This also requires digging into the > bowels of the rig to get to the AUX-7 board. Drake says this is a > matter of removing the display board only. Others say the front panel > must be dropped, necessitating a delicate bandswitch shaft extraction > (which probably isn't as surgically difficult as all that). Is there a > preferred way of getting to the AUX-7 board? > > A simpler way to achieve the LF coverage, it seems, would be to install > diodes on the parent board as Drake suggested. Since I already have a > module in position 1 for 0 - 500 KHz., I'd skip the group of diodes for > that range (eliminating the involvement of foil # 17). My #10 foil, by > the way, has already been severed in order to enable 1.5 - 30 MHz > transmit (the WARC bands, in my case). > > Does one method have any advantage over the other? The module-making > would be more cool and "techie", but the parent board diode tacking > method seems a lot simple and certainly less invasive. I generally favor > less invasive measures on radios I don't know well. Tube rigs don't > bother me, but solid-state ones with all their little delicate thingies > are a bit intimidating to me. I suppose I need to get over it! > > Thanks and 73, > > Craig > W3CRR > > > > > ---------------------------------------------------------------------- > 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 > ---------------------------------------------------------------------- >
RTM7A.GIF
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