| Author |
Message |
    
Bushpilot169
Member
Username: Bushpilot169
Post Number: 66
Registered: 2-2004
| | Posted on Wednesday, June 15, 2005 - 10:32 pm: | 
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just picked up an emperor, and i checked the mods for it here, and i found r539 & r540.
but just wondering after doing the mod, the
rig should go down to 12meter or will i have
to do another mod for that? |
Viking
Intermediate Member
Username: Viking
Post Number: 206
Registered: 2-2002
| | Posted on Thursday, June 16, 2005 - 10:49 am: |
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It looks like clipping those 2 resistors will give 26.500MHz to 27.999MHz. I have never seen a different mod for this radio.
BTW, this radio is the same as the Alan 9001, "Shogun" and Sommerkamp Ts-5010. |
Narf_edwards
Junior Member
Username: Narf_edwards
Post Number: 10
Registered: 3-2005
| | Posted on Saturday, August 20, 2005 - 9:13 pm: |
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There is a mod to open up the RIT to make it 2-way.I would say this is mandatory at the least.It is not too hard to do if you can use a soldering gun and you know how to break a trace on the pc board. Check this link http://www.hardwarehacking.com/category/radio/citizen-band-radio/cb-radio-mods/
Second radio down is your fine Emperor and the RIT mod is there.If you can't do it get a bud to do it.Your dx experiences will be a plesure after the mod.
Bye the way...in my opinion the TS-5010 is way underrated.If set up correctly it is a superb performer.I have owned one for 10 years and it has been brilliant...nothing but good reports.
Good Luck my friend...hope the band opens up soon
narf |
Semi
New member
Username: Semi
Post Number: 8
Registered: 7-2005
| | Posted on Monday, August 22, 2005 - 9:32 am: |
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Narf
Thanks for great link. Hadn't seen that one before.
Semi |
Stickshift
Intermediate Member
Username: Stickshift
Post Number: 245
Registered: 7-2003
| | Posted on Monday, August 22, 2005 - 1:12 pm: |
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I personally have never understood the reason for modifying the RIT on a rig with a VFO. The VFO on the emperor already lets you move 100 Hz. Why go through the work? If the rig was strictly channelized in a sence that you could only move in 10kHz increments, such as a CB with a clarifier, I could see the point of this modification. Also seeing how this rig has seen so much time used as a CB, why would one need to have anything more than 100Hz of adjustment? Very rarely do I hear many station's that are dead-nuts on frequency anyway. To each his own. |
Bc910
Advanced Member
Username: Bc910
Post Number: 593
Registered: 7-2004
| | Posted on Monday, August 22, 2005 - 11:31 pm: |
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Stick shift
Imagine this;
3 stations on SSB are attempting to talk, all with "locked clarifiers"
Station #1 is on 27.1150 rx and tx DEAD ON FREQUENCY!
Station #2 is actually transmitting on 27.1160
if station #1 tunes in his receive to #2 he can now understand #2, now #2 tunes his receive to #1.
Great! Now both stations are transmitting on slightly different frequencies and receiving on slightly different frequencies respectively!
Ok now enter station #3, He comes in transmitting on 27.1140 MHZ so both #1 $ #2 tune their receive to #3 Now lets examine what has happened;
Station #1 can hear #3
Station #2 can hear #3
Station #3 can hear either 2 or 1 which ever he decides to tune in (since the both TX on different freq.’s
Station #2 and #1 can't understand each other now at all!!!
There are two fixes to this
#1 All three stations constantly re-adjusting their "locked" clarifiers QUICKLY so that they don't miss the first few words said in a key
Or
#2 All stations have "un-locked" clarifiers and are ALL tx and rx on the same exact frequency!!!
You see how hard it can be for three people to carry on a qso imagine if it were 4, 5 or 10, or what ever!
My personal belief is that the FCC just made a human error when making that a law; They should have regulated the amount of "slide" rather than "only receive"
But that is just my opinion
BC
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Stickshift
Intermediate Member
Username: Stickshift
Post Number: 246
Registered: 7-2003
| | Posted on Tuesday, August 23, 2005 - 1:13 am: |
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We are talking about rigs with VFO's here, which effects the tx and rx directly. The rit effects rx only and was intended for that purpose. With a conventional CB, everything is fixed, and therefore "opening" up a clarifier is a very nice and useful addition to the txcvr. With a VFO controlled rig, the RIT mod is not necessary. |
Narf_edwards
Junior Member
Username: Narf_edwards
Post Number: 11
Registered: 3-2005
| | Posted on Tuesday, August 23, 2005 - 5:11 am: |
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Well said BC.In a mobile installation it is far safer to have one hand on a clarifier or vfo knob than to be looking down pushing span buttons etc. as you drive.Only downfall on the 5010 I find is there is no detent at 12 o'clock on the rit knob so in the dark early morning hours you have no reference point as to dead center frequency.Most times tho I have left things where they are from the day before and have no problems.Opening up the rit for two way is the only way to go else as BC says you gotta have quick fingers.Multi party qsl's require this mod ....how many people do you hear think they are on freq.but are just a little high.They are unaware as rit tunes recieve only.I understand fully
Thanx for that BC...solid brother
Narf |
Bc910
Advanced Member
Username: Bc910
Post Number: 596
Registered: 7-2004
| | Posted on Tuesday, August 23, 2005 - 10:10 am: |
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StickShift, you are correct except the vfo on most radios will get close but you still (if you are a perfectionist like myself) will want to be DEAD ON Which is where the "un-locked clarifier" comes in.
BC
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Bc910
Advanced Member
Username: Bc910
Post Number: 597
Registered: 7-2004
| | Posted on Tuesday, August 23, 2005 - 10:14 am: |
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BTW
Reading your post a littlle more carefully, I would have to aggree "with a VFO controlled rig the rit mod is not necessary." But I would add that it is nice!
BC |
Stickshift
Intermediate Member
Username: Stickshift
Post Number: 247
Registered: 7-2003
| | Posted on Tuesday, August 23, 2005 - 2:27 pm: |
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Bc, I too consider myself to be somewhat of a perfectionis. Although as I get a little older, I've learned to just take more and more things for what they are. The counter on the 706mkiig reads and adjusts to 1Hz. Believe it or not, I am able to hear as little as 5Hz of frequency shift when talking to well known friends who I've known for years. Conterary to the human ear's capability of hearing 20Hz to 20kHz of range, like I said, I can defenitely tell the pitch isn't right at as little as 5Hz. I am picky about being on frequency, during ragchews with regulars especially. I will usually be the first to let people know. But for a simple QSO it's not that big a deal for me. The RIT is suitable "as is" and a nice addition to have the capability of a VFO and a RIT works for me. Good topic here guys. |
Hollowpoint445
Advanced Member
Username: Hollowpoint445
Post Number: 696
Registered: 6-2004
| | Posted on Tuesday, August 23, 2005 - 7:05 pm: |
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With a step of 100Hz the farthest you'll be off is 50 Hz, and 50Hz isn't that bad of frequency error on SSB. I can handle that without problem. My HF rig does steps of 10 Hz and to be honest, it's difficult to distinguish if I'm 5Hz high or low when it's in between steps unless I really know the other person's voice well.
I understand why someone would want to be exactly on frequency, but if you unlock the RIT it'll swing a KHz or more and that's really not necessary when the smallest steps of the VFO are 100HZ. If you replace the pot with a much smaller value so the swing is only 20 Hz or so I could agree more with doing the modification, but short of that I don't think it's a good idea.
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Hollowpoint445
Advanced Member
Username: Hollowpoint445
Post Number: 698
Registered: 6-2004
| | Posted on Tuesday, August 23, 2005 - 7:24 pm: |
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Doh! - I meant to write 200 Hz, not 20 Hz. 100Hz up and 100Hz down. |
Patzerozero
Senior Member
Username: Patzerozero
Post Number: 1296
Registered: 7-2004
| | Posted on Wednesday, August 24, 2005 - 7:56 am: |
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'In a mobile installation it is far safer to have one hand on a clarifier or vfo knob than to be looking down pushing span buttons etc. as you drive'-which is why i purchased an S9 to replace my delta force, which i still have(though NEITHER ever made it out of my base). most unaltered clarifiers do not have enough coverage, opening for xmit resolves 2 situations.
hearing impairments can make it neccessary to alter received freqs on SSB in what others may percieve as 'the wrong direction'. i find it easier to understand certain people a bit high on freq & others a bit low, yet others that listen with me will tell me they prefer 'dead on'.
(make sure to where ear protection while drag racing, shooting guns, etc etc ) |
Narf_edwards
Junior Member
Username: Narf_edwards
Post Number: 12
Registered: 3-2005
| | Posted on Saturday, August 27, 2005 - 7:57 am: |
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Listen....I took the Emperor out of the truck and put my 1973 Hallicrafter's FPM-300 in there.Now there is a VFO for ya,What a rig mobile or base...solid..running it rite off the lighter socket rite now...old tubes kicking up 80-100 watts with ease.Only thing no noise limiter or blanker so people going buy with bad plug wires kinda wipe out the receive.What a great smell tho when that old thing gets cookin...and so much nicer to listen to than the Emperor.Probably gonna get worse gas mileage cause it weighs so much hahahahahaa Narf |
